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Prospect, PA Weather

It is 37°F in Prospect, PA, observed at 4:56 AM EDT. Today: Partly Sunny, high 60°F, low 42°F. Hourly and 10-day forecast from the National Weather Service. Times are local (EDT).

Prospect, PA current weather

37°F

Mostly Sunny

H 60° / L 42°Feels like 37°

  • No rain expected in the next 12 hours

Observed at Pittsburgh/Butler Regional Airport (9.7 mi away), 10/31/2026, 4:56 AM EDT

Hourly forecast

NWS, updated 10/31/2026, 2:21 AM PT

  1. Now35°
  2. 7 AM34°
  3. 8 AM34°
  4. 9 AM38°
  5. 10 AM44°
  6. 11 AM50°
  7. 12 PM54°
  8. 1 PM57°
  9. 2 PM58°
  10. 3 PM59°
  11. 4 PM60°
  12. 5 PM59°
  13. 6 PM57°
  14. 7 PM52°
  15. 8 PM47°
  16. 9 PM46°
  17. 10 PM44°
  18. 11 PM44°
  19. 12 AM43°Sun
  20. 1 AM43°
  21. 1 AM43°
  22. 2 AM43°
  23. 3 AM43°
  24. 4 AM42°
  25. 5 AM43°
  26. 6 AM43°
  27. 7 AM44°
  28. 8 AM46°
  29. 9 AM51°
  30. 10 AM55°
  31. 11 AM58°
  32. 12 PM62°
  33. 1 PM63°
  34. 2 PM64°
  35. 3 PM64°
  36. 4 PM63°
  37. 5 PM61°
  38. 6 PM57°
  39. 7 PM52°
  40. 8 PM50°
  41. 9 PM49°
  42. 10 PM48°
  43. 11 PM47°
  44. 12 AM47°Mon
  45. 1 AM46°
  46. 2 AM45°
  47. 3 AM45°
  48. 4 AM44°

10-day forecast

Tap a day for details

  • Today10/31Low 42°High 60°

    Today: Partly sunny, with a high near 60. Northeast wind around 2 mph.

    Tonight: Mostly cloudy, with a low around 42. East wind 1 to 5 mph.

    Partly Sunny
  • Sun11/1Low 44°High 65°

    Sunday: Mostly cloudy, with a high near 65. Southeast wind around 5 mph.

    Sunday Night: Partly cloudy, with a low around 44. Southeast wind around 2 mph.

    Mostly Cloudy
  • Mon11/2Low 46°High 65°

    Monday: Partly sunny, with a high near 65. South wind around 3 mph.

    Monday Night: Mostly cloudy, with a low around 46.

    Partly Sunny
  • Tue11/311% chance of precipitationLow 50°High 70°

    Tuesday: Partly sunny, with a high near 70.

    Tuesday Night: Mostly cloudy, with a low around 50.

    Partly Sunny
  • Wed11/460% chance of precipitationLow 53°High 70°

    Wednesday: A chance of rain showers after 7am. Partly sunny, with a high near 70. Chance of precipitation is 40%.

    Wednesday Night: Rain showers likely. Mostly cloudy, with a low around 53. Chance of precipitation is 60%.

    Chance Rain Showers
  • Thu11/560% chance of precipitationLow 49°High 68°

    Thursday: Rain showers likely. Mostly cloudy, with a high near 68. Chance of precipitation is 60%.

    Thursday Night: A chance of rain showers. Mostly cloudy, with a low around 49. Chance of precipitation is 50%.

    Rain Showers Likely
  • Fri11/646% chance of precipitationLow 44°High 64°

    Friday: A chance of rain showers. Partly sunny, with a high near 64. Chance of precipitation is 50%.

    Friday Night: A chance of rain showers. Mostly cloudy, with a low around 44.

    Chance Rain Showers
  • Sat11/7Model blend19% chance of precipitationLow 37°High 61°

    Saturday: Mostly cloudy, slight chance of rain. High near 61°. Low that night near 37°.

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

  • Sun11/8Model blend12% chance of precipitationLow 36°High 60°

    Sunday: Mostly cloudy. High near 60°. Low that night near 36°.

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

  • Mon11/9Model blend21% chance of precipitationLow 35°High 60°

    Monday: Partly cloudy, slight chance of rain. High near 60°. Low that night near 35°. About 0.02 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 40.900, -80.047 from the NWS PBZ office, updated 10/31/2026, 2:21 AM PT · Official forecast on weather.gov

Days 8 to 10: NOAA National Blend of Models, station KUCP (New Castle Muni, 21 mi), model run 10/31/2026, 4:00 AM EDT

Hazardous weather outlookIssued 10/31/2026, 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

Sunday through Friday.

No hazardous weather is expected at this time.

Spotter information statement

Spotter activation is not expected at this time.

Forecaster's discussionIssued 10/31/2026, 1:05 AM EDT

What has changed

Already minimal rain chances have decreased further early next week. No other major changes were made to the latest forecast.

Key messages

1) Dry weather is expected to continue until rain chances increase toward the middle of next week

Discussion

KEY MESSAGE 1: Surface high pressure will drift east across the region through Sunday, maintaining dry weather. Mid and high clouds are expected to increase in warm advection ahead of a weakening shortwave trough across the Midwest. This trough is progged to cross the Upper Ohio Valley region on Monday, though with diminishing ascent and a lack of deep layer moisture, a dry forecast was maintained.

Model ensembles indicate ridging will build across the Upper Ohio Valley region again Tuesday, with decreased clouds, dry weather, and likely the warmest temperatures of the week. A trough across the central CONUS is then expected to advance eastward on Wednesday, approaching and crossing the region late Wednesday and Thursday. This is expected to bring increasing rain chances, with the highest POPs currently on Thursday. Lingering broad upper troughing should keep rain chances in the forecast at times Friday and Saturday.

Aviation

River valley fog should result in IFR visibility at times for FKL early this morning. Low level moisture could also bring MVFR stratus to DUJ early this morning as well. Otherwise, high pressure should maintain VFR conditions through the TAF period. Increasing mid and high level clouds are expected in warm advection ahead of a weakening shortwave trough across the Midwest.

Outlook: VFR is expected until rain and restriction chances increase Wednesday with approaching low pressure.

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. Now35°Mostly Sunny0%0 mph
  2. 7 AM34°Partly Sunny0%0 mph
  3. 8 AM34°Partly Sunny0%0 mph
  4. 9 AM38°Partly Sunny1%1 mph
  5. 10 AM44°Partly Sunny1%2 mph
  6. 11 AM50°Partly Sunny1%2 mph

Hourly details

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

Radar and satellite

National radar

NEXRAD (up to 24 hours) and GOES

Latest

Frequently asked questions

What is the weather in Prospect, PA right now?
The latest observation from Pittsburgh/Butler Regional Airport was 37°F, reported at 10/31/2026, 4:56 AM EDT.
What is the high temperature today in Prospect, PA?
The National Weather Service forecast for today calls for a high near 60°F. Partly Sunny.
Will it rain in Prospect, 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 is the 10-day forecast for Prospect, PA?
The first 7 days come from the National Weather Service forecast. Days 8 to 10 (Nov 7 to Nov 9) come from the NOAA National Blend of Models, with highs of 60°F to 61°F. Model guidance this far out often changes.
What time is sunrise and sunset in Prospect, PA today?
Sunrise is about 7:50 AM EDT and sunset is about 6:17 PM EDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Prospect, PA?
At Butler 2 SW, the 1991 to 2020 normal high in October is 62°F and the normal low is 39°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 (Mercer County)
20GoodPM2.5
AQI forecast tomorrow (Mercer County)
25GoodPM2.5

UV index guide · Air quality

Drought

By county

Butler County, week of 10/27/2026

No drought or abnormal dryness in this county.

Sun and moon

Local time, center of the area

Sunrise
7:50 AM
Sunset
6:17 PM
Daylight
10 hr 27 min
Moon
Waning Gibbous 72% lit
First light (civil dawn)
7:21 AM
Last light (civil dusk)
6:45 PM
Moonrise
11:12 PM
Moonset
1:54 PM

Normal October weather

Climate

Normal October high 62°, low 39°, precipitation 3.30 in for the month. 1991 to 2020 normals at Butler 2 SW, 8 mi away.

Other places nearby

Data sources

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About this data

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