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Derry, PA Weather

It is 59°F and mostly cloudy in Derry, PA, observed at 5:35 AM EDT. Today: Mostly Sunny, high 64°F, low 38°F. Hourly and 7-day forecast from the National Weather Service. Times are local (EDT).

Derry, PA current weather

59°F

Mostly Cloudy

H 64° / L 38°Feels like 59°

14° warmer than yesterday at this time

Observed at Arnold Palmer Regional Airport (6.6 mi away), 10/30/2026, 5:35 AM EDT

Hourly forecast

NWS, updated 10/30/2026, 3:21 AM PT

  1. Now60°
  2. 7 AM57°
  3. 8 AM54°
  4. 9 AM53°
  5. 10 AM53°
  6. 11 AM55°
  7. 12 PM58°
  8. 1 PM60°
  9. 2 PM60°
  10. 3 PM61°
  11. 4 PM62°
  12. 5 PM61°
  13. 6 PM59°
  14. 7 PM54°
  15. 8 PM51°
  16. 9 PM49°
  17. 10 PM47°
  18. 11 PM45°
  19. 12 AM44°Sat
  20. 1 AM44°
  21. 2 AM43°
  22. 3 AM42°
  23. 4 AM41°
  24. 5 AM41°
  25. 6 AM40°
  26. 7 AM39°
  27. 8 AM39°
  28. 9 AM41°
  29. 10 AM45°
  30. 11 AM50°
  31. 12 PM55°
  32. 1 PM58°
  33. 2 PM60°
  34. 3 PM60°
  35. 4 PM61°
  36. 5 PM60°
  37. 6 PM58°
  38. 7 PM56°
  39. 8 PM52°
  40. 9 PM51°
  41. 10 PM50°
  42. 11 PM49°
  43. 12 AM49°Sun
  44. 1 AM49°
  45. 1 AM48°
  46. 2 AM48°
  47. 3 AM47°
  48. 4 AM47°

7-day forecast

Tap a day for details

  • Today10/30Low 38°High 64°

    Today: Mostly sunny, with a high near 64. West wind 3 to 12 mph.

    Tonight: Partly cloudy, with a low around 38. North wind 0 to 8 mph.

    Mostly Sunny
  • Sat10/31Low 45°High 62°

    Saturday: Partly sunny, with a high near 62. Northeast wind around 2 mph.

    Saturday Night: Mostly cloudy, with a low around 45. East wind around 5 mph.

    Partly Sunny
  • Sun11/112% chance of precipitationLow 47°High 66°

    Sunday: Mostly cloudy, with a high near 66. Southeast wind around 5 mph.

    Sunday Night: Mostly cloudy, with a low around 47.

    Mostly Cloudy
  • Mon11/212% chance of precipitationLow 49°High 65°

    Monday: Partly sunny, with a high near 65.

    Monday Night: Mostly cloudy, with a low around 49.

    Partly Sunny
  • Tue11/312% chance of precipitationLow 52°High 70°

    Tuesday: Partly sunny, with a high near 70.

    Tuesday Night: Partly cloudy, with a low around 52.

    Partly Sunny
  • Wed11/441% chance of precipitationLow 54°High 69°

    Wednesday: A chance of rain showers after 7am. Partly sunny, with a high near 69. Chance of precipitation is 30%.

    Wednesday Night: A chance of rain showers. Mostly cloudy, with a low around 54. Chance of precipitation is 40%.

    Chance Rain Showers
  • Thu11/553% chance of precipitationLow 49°High 66°

    Thursday: A chance of rain showers. Mostly cloudy, with a high near 66. Chance of precipitation is 50%.

    Thursday Night: A chance of rain showers. Mostly cloudy, with a low around 49.

    Chance Rain Showers

Forecast for 40.332, -79.301 from the NWS PBZ office, updated 10/30/2026, 3:21 AM PT · Official forecast on weather.gov

Hazardous weather outlookIssued 10/30/2026, 1:05 AM EDT

This Hazardous Weather Outlook is for east central Ohio, western Pennsylvania, and northern West Virginia.

Day one

Today and tonight.

No hazardous weather is expected at this time.

Days two through seven

Saturday through Thursday.

No hazardous weather is expected at this time.

Spotter information statement

Spotter activation is not expected at this time.

Forecaster's discussionIssued 10/30/2026, 5:50 AM EDT

What has changed

Updated the aviation discussion for increased MVFR ceilings this morning.

Key messages

1) Dry weather continues into the weekend

2) Minimal rain chances early next week, with higher chances by mid to late week

Discussion

KEY MESSAGE 1: A weak cold front will continue to drop southeast across the Upper Ohio Valley region this morning, though no rain is expected with a lack of deep layer moisture. The main impact of this front will be increased cloud cover along the front, with scattered stratocu in cold advection through the afternoon. Highs today should also be around 10 degrees below Thursday's readings.

Dry weather is then expected to continue through the weekend as surface high pressure builds across the region. Mid and high level clouds should gradually increase through this period ahead of an approaching shortwave trough across the Midwest. Temperatures should moderate again by Sunday, with readings around 10 degrees above average.

KEY MESSAGE 2: A weakening trough is expected to track slowly east across the Upper Ohio Valley region Sunday night into Monday. A lack of moisture should be the main limiting factor on seeing any rain with this system, though slight chances POPs were maintained. Model ensembles indicate ridging will then build across the Upper Ohio Valley region through early Wednesday, ahead of a deepening central CONUS trough. This should maintain dry weather and warm temperatures across the area. Rain chances are expected to begin to increase by mid to late week as the trough slowly approaches the region, though uncertainty remains in the strength and forward speed of the trough.

Aviation

A cold front will continue to cross the region from N-S early this morning. The main impact is expected to be a band of stratocu clouds, with VFR cigs. Enough low level moisture after FROPA has resulted in patchy MVFR cigs. Included a TEMPO mention of these cigs, including PIT. Clouds should gradually scatter out by mid morning, with a scattered cumulus/stratocu layer through the rest of the day in cold advection and NW flow. A wind shift from the SW to NW is expected with FROPA, with speeds around 10 kt by mid morning. Wind should diminish this evening as high pressure builds in.

Outlook: Outside of any early morning river valley fog on Saturday, VFR is expected into early next week. A disturbance will likely bring an increase in mid level clouds Sunday night and Monday, with only a slight chance of rain.

Watches, warnings and advisories

PA: None. OH: None. WV: 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. Now60°Cloudy3%3 mph
  2. 7 AM57°Cloudy3%5 mph
  3. 8 AM54°Mostly Cloudy4%6 mph
  4. 9 AM53°Mostly Cloudy4%8 mph
  5. 10 AM53°Partly Sunny7%8 mph
  6. 11 AM55°Mostly Sunny4%9 mph

Hourly details

Next 7 days: temperature chart, feels like, rain and snow amounts, sky cover, wind and gustsShow

Observed today

Since midnight, vs yesterday and normal

Today's high so far is 7° above the normal of 56° and 11° cooler than yesterday's high.

High so far
63°
7° above normal
Low so far
59°
Normal low 37°
Precipitation
0.00 in
Since midnight
Yesterday
High 73° · Low 43° · Precip 0.00 in
Normal for today
High 56° · Low 37°

Observed at Arnold Palmer Regional Airport (KLBE) since midnight local time, through 5:35 AM. Station reports are preliminary and not quality controlled. Normals are estimated from 1991 to 2020 monthly normals at Laurel Mtn.

Radar and satellite

National radar

NEXRAD (up to 24 hours) and GOES

Latest

Frequently asked questions

What is the weather in Derry, PA right now?
The latest observation from Arnold Palmer Regional Airport was 59°F and mostly cloudy, reported at 10/30/2026, 5:35 AM EDT.
What is the high temperature today in Derry, PA?
The National Weather Service forecast for today calls for a high near 64°F. Mostly Sunny.
Will it rain in Derry, PA 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 time is sunrise and sunset in Derry, PA today?
Sunrise is about 7:44 AM EDT and sunset is about 6:16 PM EDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Derry, PA?
At Laurel Mtn, the 1991 to 2020 normal high in October is 62°F and the normal low is 41°F.

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 (Johnstown)
35GoodPM2.5
AQI forecast tomorrow (Johnstown)
35GoodPM2.5

UV index guide · Air quality

Drought

By county

Westmoreland County, week of 10/27/2026

No drought or abnormal dryness in this county.

Sun and moon

Local time, center of the area

Sunrise
7:44 AM
Sunset
6:16 PM
Daylight
10 hr 32 min
Moon
Waning Gibbous 80% lit
First light (civil dawn)
7:16 AM
Last light (civil dusk)
6:44 PM
Moonrise
9:54 PM
Moonset
12:59 PM

Normal October weather

Climate

Normal October high 62°, low 41°, precipitation 3.62 in for the month. 1991 to 2020 normals at Laurel Mtn, 11 mi away.

Other places nearby

Data sources

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About this data

Weather and emergencies: Weather, air quality and hazard information on this page is delayed and may be incomplete. It is not a substitute for official warnings. Always follow the National Weather Service, local emergency management and public safety officials. In an emergency, call 911. For evacuation orders, use your local official alert system.

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