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East Petersburg, PA 17520 Weather

Today: Partly Sunny, high 67°F, low 42°F. Hourly and 10-day forecast from the National Weather Service. Times are local (EDT).

East Petersburg, PA 17520 current weather

45°F

Partly Cloudy

Forecast for this hour. No recent report from a nearby station.

H 67° / L 42°

No recent station report. NWS hourly forecast updated 10/27/2026, 11:21 PM PT

Hourly forecast

NWS, updated 10/27/2026, 11:21 PM PT

  1. Now45°
  2. 3 AM45°
  3. 4 AM44°
  4. 5 AM43°
  5. 6 AM42°
  6. 7 AM42°
  7. 8 AM43°
  8. 9 AM47°
  9. 10 AM53°
  10. 11 AM57°
  11. 12 PM61°
  12. 1 PM63°
  13. 2 PM65°
  14. 3 PM65°
  15. 4 PM65°
  16. 5 PM66°
  17. 6 PM63°
  18. 7 PM59°
  19. 8 PM57°
  20. 9 PM53°
  21. 10 PM51°
  22. 11 PM50°
  23. Thu12 AM49°
  24. 1 AM48°
  25. 2 AM48°
  26. 3 AM48°
  27. 4 AM47°
  28. 5 AM47°
  29. 6 AM47°
  30. 7 AM45°
  31. 8 AM47°
  32. 9 AM50°
  33. 10 AM56°
  34. 11 AM60°
  35. 12 PM64°
  36. 1 PM68°
  37. 2 PM70°
  38. 3 PM71°
  39. 4 PM71°
  40. 5 PM72°
  41. 6 PM68°
  42. 7 PM63°
  43. 8 PM59°
  44. 9 PM57°
  45. 10 PM56°
  46. 11 PM55°
  47. Fri12 AM55°
  48. 1 AM54°

10-day forecast

Tap a day for details

  • Today10/28Low 42°High 67°

    Wednesday: Partly sunny, with a high near 67. East wind 2 to 6 mph.

    Overnight: Partly cloudy, with a low around 42. East wind around 2 mph.

    Partly Sunny
  • Thu10/29Low 50°High 72°

    Thursday: Mostly sunny, with a high near 72. South wind 0 to 7 mph.

    Thursday Night: Mostly clear, with a low around 50. Southwest wind around 6 mph.

    Mostly Sunny
  • Fri10/30Low 42°High 72°

    Friday: Sunny, with a high near 72.

    Friday Night: Mostly clear, with a low around 42.

    Sunny
  • Sat10/31Low 44°High 65°

    Saturday: Mostly sunny, with a high near 65.

    Saturday Night: Mostly cloudy, with a low around 44.

    Mostly Sunny
  • Sun11/120% chance of precipitationLow 49°High 68°

    Sunday: Mostly cloudy, with a high near 68.

    Sunday Night: A slight chance of rain showers after 1am. Mostly cloudy, with a low around 49.

    Mostly Cloudy
  • Mon11/236% chance of precipitationLow 50°High 68°

    Monday: A chance of rain showers. Mostly cloudy, with a high near 68. Chance of precipitation is 40%.

    Monday Night: A chance of rain showers. Mostly cloudy, with a low around 50. Chance of precipitation is 40%.

    Chance Rain Showers
  • Tue11/336% chance of precipitationLow High 68°

    Tuesday: A chance of rain showers. Mostly cloudy, with a high near 68.

    Chance Rain Showers
  • Wed11/4Model blend46% chance of precipitationLow 49°High 63°

    Wednesday: Chance of rain. High near 63°. Low that night near 49°. About 0.76 in of precipitation.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

  • Thu11/5Model blend46% chance of precipitationLow 48°High 63°

    Thursday: Chance of rain. High near 63°. Low that night near 48°. About 0.36 in of precipitation.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

  • Fri11/6Model blend26% chance of precipitationLow High 62°

    Friday: Mostly cloudy, slight chance of rain. High near 62°. About 0.10 in of precipitation.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

Forecast for 40.096, -76.348 from the NWS CTP office, updated 10/27/2026, 11:21 PM PT · Official forecast on weather.gov

Days 8 to 10: NOAA National Blend of Models, station KLNS (Lancaster Arpt, 3 mi), model run 10/27/2026, 7:00 PM EDT

Hazardous weather outlookIssued 10/27/2026, 3:47 AM EDT

This Hazardous Weather Outlook is for central Pennsylvania.

Day one

Today and tonight.

No hazardous weather is expected at this time.

Days two through seven

Wednesday through Monday.

No hazardous weather is expected at this time.

Spotter information statement

Spotter activation is not expected at this time.

Forecaster's discussionIssued 10/27/2026, 8:07 PM EDT

What has changed

* Added mention of fire weather concerns as a key message

Key messages

1) Rain-free and mild conditions will persist through the end of October

2) Trending wetter to start November

3) Fire weather concerns may start to increase later this week.

Discussion

KEY MESSAGE 1: Rain-free and mild conditions will persist through the end of October

Noon Update: Forecast on track. No tweaks worth noting to the next 24 hrs.

Previous discussion: In the wake of a moisture-deprived cold front last night, we'll see another dry day across the Commonwealth with very low dewpoints in northeast PA. Temperatures will be cooler than Monday, but still several degrees above normal for this time of year. The cold front will lift north again as a warm front on Wednesday, bringing increasing clouds but no rain chances.

Temperatures will trend warmer through Friday ahead of another cold front and then decrease a bit into the weekend. Saturday will be similar to Wednesday with increasing clouds but no rain. Daytime and overnight temperatures will be +5 to +15 degrees above average for this time of year through the weekend, providing great conditions for trick or treat. Whether neighborhoods are hosting beggars night on Halloween or moving it earlier, mild and dry conditions will prevail.

-------------------------------------------------------------

KEY MESSAGE 2: Trending wetter to start November

After not seeing a drop of rain in nearly 2 weeks, November will start off with a couple chances for rain. There remains some model uncertainty, but a trough should move through the central part of the United States early next week. This should deliver enough upper level support to generate some accumulating rainfall across the Commonwealth. Climate Prediction Center outlooks lean wetter than average for the first couple of weeks in November, though the signal is not super strong. Temperature trends favor above normal temperatures with much higher confidence. Notably, the monthly outlook for November begins to take on a classic El Nino pattern with above normal precipitation favored across the southeast US up through the I-95 corridor and below normal precipitation for the Great Lakes. This could set the stage for an active storm track bringing wet conditions to the Lower Susquehanna Valley while the northwest mountains continue their dry trend.

-------------------------------------------------------------

KEY MESSAGE 3: Fire weather concerns may start to increase later this week.

Min RH values will be lowest this afternoon (mid 30s N to m50s S) and rise for Wed-Thur as dew points increase thanks to return flow as the high pressure overhead moves to the east. The winds will pick up a bit for the same time frame and for Friday, too. The RHs will likely drop some Friday and even further on Sat after a cold front moves through on Friday. This reduction in RH and increase in wind speeds could increase the risk of rapid wildfire spread, especially when combined with any reduction in fuel moisture. Collaboration on Fire Weather issues may be necessary, at the least worthwhile, toward week's end.

Aviation

Thin layer of high level clouds currently moving across central Pennsylvania, generally above 25,000 ft AGL will not bring any threat of sub-VFR conditions in the near-term through 06Z Wednesday. Cloud decks are expected by all model guidance to trend lower at all of central Pennsylvaia's terminals in the 06-12Z Wednesday timeframe as a more expansive cloud deck moves into the region overnight.

Multiple cycles of GLAMP model guidance at AOO/MDT/LNS has led to further thought about adding some mentions of sub-VFR conditions this cycle, with highest confidence in these conditions occurring at AOO. At this time, have pushed AOO towards a prolonged period of MVFR conditions with a shorter period of IFR flight conditions based on a combination of HREF/NBM/GLAMP model guidance. Timing on potential IFR conditions could trend slightly longer compared to current forecast, but increasing winds and slightly less low-level moisture promotes fairly short duration in IFR conditions. Further southeast at MDT/LNS, multiple cycles of GLAMP model guidance outlined LIFR/IFR conditions; however, there is lower (~20-30%) confidence in these conditions occurring as of the 00Z TAF package. Minimum members of HREF ensemble guidance outlines IFR conditions making a fairly close approach to MDT/LNS in the 10-12Z Wednesday timeframe, so this would be the timing of most concern for aviation interests at these two airfields. After 15Z Wednesday, very high confidence in VFR conditions areawide, with another batch of more widespread valley fog potential Wednesday night into Thursday morning.

Outlook:

Thu: VFR likely, AM valley fog possible.

Fri: MVFR ceilings possible mainly in the north and west.

Sat: Mainly VFR conditions.

Sun: Light rain may lead to restrictions, VFR otherwise.

Watches, warnings and advisories

None.

From the National Weather Service; may be delayed. Not for life-safety decisions. In an emergency, call 911.

Next 6 hours

NWS hourly forecast

  1. Now45°Partly Cloudy0%2 mph
  2. 3 AM45°Partly Cloudy0%2 mph
  3. 4 AM44°Mostly Cloudy0%2 mph
  4. 5 AM43°Partly Cloudy0%2 mph
  5. 6 AM42°Mostly Cloudy1%2 mph
  6. 7 AM42°Mostly Cloudy1%2 mph

Hourly details

Next 7 days: temperature chart, feels like, rain and snow amounts, sky cover, wind and gustsShow
40°58°75°0%100%WedThuFriSatSunMonTue66°42°72°45°71°50°65°42°68°44°68°49°64°50°

Line: temperature °F. Bars: chance of precipitation.

  1. WedNow45° 0% Sky 41%2
  2.  3 AM45° 0% Sky 40%2
  3.  4 AM44° 0% Sky 51%2
  4.  5 AM43° 0% Sky 48%2
  5.  6 AM42° 1% Sky 70%2
  6.  7 AM42° 1% Sky 72%2
  7.  8 AM43° 2% Sky 64%2
  8.  9 AM47° 2% Sky 54%2
  9.  10 AM53° 2% Sky 47%2
  10.  11 AM57° 2% Sky 52%3
  11.  12 PM61° 2% Sky 65%5
  12.  1 PM63° 2% Sky 72%5
  13.  2 PM65° 2% Sky 67%6
  14.  3 PM65° 1% Sky 78%6
  15.  4 PM65° 1% Sky 86%6
  16.  5 PM66° 1% Sky 86%5
  17.  6 PM63° 1% Sky 78%5
  18.  7 PM59° 1% Sky 73%3
  19.  8 PM57° 1% Sky 59%3
  20.  9 PM53° 1% Sky 32%3
  21.  10 PM51° 1% Sky 22%3
  22.  11 PM50° 1% Sky 22%3
  23. Thu 10/2912 AM49° 1% Sky 20%2
  24.  1 AM48° 1% Sky 16%2
  25.  2 AM48° 1% Sky 17%2
  26.  3 AM48° 1% Sky 34%1
  27.  4 AM47° 1% Sky 41%1
  28.  5 AM47° 1% Sky 56%1
  29.  6 AM47° 0% Sky 62%0
  30.  7 AM45° 1% Sky 62%0
  31.  8 AM47° 0% Sky 60%0
  32.  9 AM50° 0% Sky 48%1
  33.  10 AM56° 0% Sky 59%2
  34.  11 AM60° 0% Sky 59%3
  35.  12 PM64° 0% Sky 54%6
  36.  1 PM68° 0% Sky 41%6g12
  37.  2 PM70° 0% Sky 27%7g12
  38.  3 PM71° 0% Sky 33%7g12
  39.  4 PM71° 0% Sky 36%7g12
  40.  5 PM72° 0% Sky 23%6
  41.  6 PM68° 0% Sky 34%6
  42.  7 PM63° 0% Sky 28%6
  43.  8 PM59° 0% Sky 14%6
  44.  9 PM57° 0% Sky 13%5
  45.  10 PM56° 0% Sky 9%3
  46.  11 PM55° 0% Sky 4%3
  47. Fri 10/3012 AM55° 0% Sky 5%3
  48.  1 AM54° 0% Sky 7%3
  49.  2 AM54° 0% Sky 8%3
  50.  3 AM53° 0% Sky 11%3
  51.  4 AM52° 0% Sky 14%5
  52.  5 AM52° 0% Sky 17%5
  53.  6 AM51° 0% Sky 15%5
  54.  7 AM50° 0% Sky 14%5
  55.  8 AM51° 0% Sky 12%5
  56.  9 AM56° 0% Sky 9%6g12
  57.  10 AM61° 0% Sky 5%8g15
  58.  11 AM66° 0% Sky 2%10g17
  59.  12 PM69° 0% Sky 2%12g18
  60.  1 PM71° 0% Sky 2%12g18
  61.  2 PM71° 0% Sky 2%12g18
  62.  3 PM71° 0% Sky 2%10g17
  63.  4 PM71° 0% Sky 1%9g16
  64.  5 PM71° 0% Sky 1%8g15
  65.  6 PM66° 0% Sky 3%7g14
  66.  7 PM62° 0% Sky 5%7g12
  67.  8 PM57° 0% Sky 7%6
  68.  9 PM54° 0% Sky 8%6
  69.  10 PM52° 0% Sky 9%5
  70.  11 PM50° 0% Sky 10%5
  71. Sat 10/3112 AM48° 0% Sky 14%5
  72.  1 AM47° 0% Sky 17%3
  73.  2 AM46° 0% Sky 21%3
  74.  3 AM45° 0% Sky 26%3
  75.  4 AM44° 0% Sky 30%3
  76.  5 AM44° 0% Sky 35%3
  77.  6 AM43° 0% Sky 37%3
  78.  7 AM42° 0% Sky 39%2
  79.  8 AM43° 0% Sky 41%2
  80.  9 AM47° 0% Sky 40%2
  81.  10 AM52° 0% Sky 40%2
  82.  11 AM56° 0% Sky 39%2
  83.  12 PM59° 0% Sky 41%2
  84.  1 PM61° 0% Sky 43%2
  85.  2 PM62° 0% Sky 45%2
  86.  3 PM64° 0% Sky 48%2
  87.  4 PM65° 0% Sky 50%1
  88.  5 PM64° 0% Sky 53%1
  89.  6 PM62° 0% Sky 58%1
  90.  7 PM59° 0% Sky 63%1
  91.  8 PM55° 0% Sky 68%0
  92.  9 PM53° 0% Sky 68%0
  93.  10 PM51° 0% Sky 68%0
  94.  11 PM49° 0% Sky 68%0
  95. Sun 11/112 AM48° 0% Sky 68%0
  96.  1 AM47° 0% Sky 68%0
  97.  1 AM46° 0% Sky 74%0
  98.  2 AM45° 0% Sky 74%0
  99.  3 AM45° 0% Sky 74%1
  100.  4 AM45° 0% Sky 74%1
  101.  5 AM44° 0% Sky 74%1
  102.  6 AM44° 0% Sky 74%1
  103.  7 AM45° 0% Sky 79%1
  104.  8 AM49° 0% Sky 79%2
  105.  9 AM53° 0% Sky 79%2
  106.  10 AM58° 0% Sky 79%3
  107.  11 AM61° 0% Sky 79%5
  108.  12 PM64° 0% Sky 79%5
  109.  1 PM66° 2% Sky 58%6
  110.  2 PM67° 2% Sky 58%6
  111.  3 PM68° 2% Sky 58%6
  112.  4 PM67° 2% Sky 58%6
  113.  5 PM65° 2% Sky 58%6
  114.  6 PM62° 2% Sky 58%5
  115.  7 PM59° 9% Sky 75%5
  116.  8 PM57° 9% Sky 75%5
  117.  9 PM54° 9% Sky 75%3
  118.  10 PM53° 9% Sky 75%3
  119.  11 PM52° 9% Sky 75%3
  120. Mon 11/212 AM52° 9% Sky 75%2
  121.  1 AM52° 20% Sky 77%2
  122.  2 AM51° 20% Sky 77%2
  123.  3 AM51° 20% Sky 77%2
  124.  4 AM50° 20% Sky 77%2
  125.  5 AM49° 20% Sky 77%2
  126.  6 AM49° 20% Sky 77%2
  127.  7 AM50° 35% Sky 86%2
  128.  8 AM53° 35% Sky 86%2
  129.  9 AM56° 35% Sky 86%3
  130.  10 AM60° 35% Sky 86%3
  131.  11 AM63° 35% Sky 86%5
  132.  12 PM65° 35% Sky 86%5
  133.  1 PM66° 28% Sky 75%6
  134.  2 PM67° 28% Sky 75%6
  135.  3 PM68° 28% Sky 75%6
  136.  4 PM68° 28% Sky 75%6
  137.  5 PM66° 28% Sky 75%6
  138.  6 PM64° 28% Sky 75%5
  139.  7 PM61° 36% Sky 71%5
  140.  8 PM59° 36% Sky 71%3
  141.  9 PM56° 36% Sky 71%3
  142.  10 PM55° 36% Sky 71%2
  143.  11 PM55° 36% Sky 71%2
  144. Tue 11/312 AM55° 36% Sky 71%2
  145.  1 AM55° 33% Sky 69%2
  146.  2 AM54° 33% Sky 69%3
  147.  3 AM53° 33% Sky 69%3
  148.  4 AM52° 33% Sky 69%5
  149.  5 AM51° 33% Sky 69%5
  150.  6 AM50° 33% Sky 69%5
  151.  7 AM51° 36% Sky 76%5
  152.  8 AM53° 36% Sky 76%6
  153.  9 AM57° 36% Sky 76%7g12
  154.  10 AM60° 36% Sky 76%8g14
  155.  11 AM62° 36% Sky 76%8g15
  156.  12 PM64° 36% Sky 76%9g16

Temperature °F · chance of precipitation · amount in inches (T = trace) · sky cover · wind and gusts (g) in mph

NWS hourly forecast updated 10/27/2026, 11:21 PM PT

Radar and satellite

National radar

NEXRAD (last 50 min) and GOES

Latest

Nearby hazards

Pennsylvania hazards

Severe storm and flash flood outlooks, expected rain, river flooding and wildfires near this area

  • Severe storm outlook today:No thunderstorm risk area over this locationOutlook map
  • Excessive rainfall outlook (flash flood risk):Could not check the Weather Prediction Center outlook right now.
  • River gauges within 40 miles at or above flood stage: None reported
  • Active wildfires within 50 miles: None reported

UV and air quality forecast

EPA and AirNow

AQI forecast today (Susquehanna Valley)
75ModeratePM2.5
AQI forecast tomorrow (Susquehanna Valley)
65ModeratePM2.5

UV index guide · Air quality

Drought

By county

Lancaster County, week of 10/20/2026

No drought or abnormal dryness in this county.

Sun and moon

Local time, center of the area

Sunrise
7:30 AM
Sunset
6:07 PM
Daylight
10 hr 37 min
Moon
Waning Gibbous 95% lit
First light (civil dawn)
7:02 AM
Last light (civil dusk)
6:35 PM
Moonrise
7:32 PM
Moonset
10:32 AM

Normal October weather

Climate

Normal October high 66°, low 44°, precipitation 3.78 in for the month. 1991 to 2020 normals at Lancaster AP, 3 mi away.

Other places nearby

Data sources

See something wrong? Request a correction

Frequently asked questions

What is the high temperature today in East Petersburg, PA 17520?
The National Weather Service forecast for wednesday calls for a high near 67°F. Partly Sunny.
Will it rain in East Petersburg, PA 17520 in the next 24 hours?
The NWS hourly forecast does not show any hour with a 50% or higher chance of precipitation in the next 24 hours.
What is the 10-day forecast for East Petersburg, PA 17520?
The first 7 days come from the National Weather Service forecast. Days 8 to 10 (Nov 4 to Nov 6) come from the NOAA National Blend of Models, with highs of 62°F to 63°F and up to a 46% chance of precipitation. Model guidance this far out often changes.
What time is sunrise and sunset in East Petersburg, PA 17520 today?
Sunrise is about 7:30 AM EDT and sunset is about 6:07 PM EDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in East Petersburg, PA 17520?
At Lancaster AP, the 1991 to 2020 normal high in October is 66°F and the normal low is 44°F.

About this data

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