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North Irwin, PA 15642 Weather

It is 61°F and clear in North Irwin, PA 15642, observed at 4:55 PM EDT. Today: Sunny, high 65°F, low 37°F. Hourly and 10-day forecast from the National Weather Service. Times are local (EDT).

North Irwin, PA 15642 current weather

61°F

Clear

H 65° / L 37°Feels like 61°

  • No rain expected in the next 12 hours

Observed at Pittsburgh - Allegheny County Airport (11.1 mi away), 10/30/2026, 4:55 PM EDT

Hourly forecast

NWS, updated 10/30/2026, 1:21 PM PT

  1. Now62°
  2. 6 PM60°
  3. 7 PM55°
  4. 8 PM51°
  5. 9 PM49°
  6. 10 PM47°
  7. 11 PM46°
  8. 12 AM44°Sat
  9. 1 AM42°
  10. 2 AM41°
  11. 3 AM41°
  12. 4 AM40°
  13. 5 AM39°
  14. 6 AM39°
  15. 7 AM38°
  16. 8 AM37°
  17. 9 AM40°
  18. 10 AM46°
  19. 11 AM52°
  20. 12 PM56°
  21. 1 PM59°
  22. 2 PM60°
  23. 3 PM61°
  24. 4 PM62°
  25. 5 PM62°
  26. 6 PM60°
  27. 7 PM56°
  28. 8 PM52°
  29. 9 PM50°
  30. 10 PM49°
  31. 11 PM48°
  32. 12 AM47°Sun
  33. 1 AM47°
  34. 1 AM47°
  35. 2 AM46°
  36. 3 AM46°
  37. 4 AM46°
  38. 5 AM46°
  39. 6 AM46°
  40. 7 AM46°
  41. 8 AM48°
  42. 9 AM52°
  43. 10 AM58°
  44. 11 AM61°
  45. 12 PM64°
  46. 1 PM66°
  47. 2 PM68°
  48. 3 PM68°

10-day forecast

Tap a day for details

  • Today10/30Low 37°High 65°

    This Afternoon: Sunny, with a high near 65. Northwest wind around 12 mph.

    Tonight: Partly cloudy, with a low around 37. North wind 1 to 10 mph.

    Sunny
  • Sat10/31Low 45°High 63°

    Saturday: Partly sunny, with a high near 63. Northeast wind 1 to 5 mph.

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

    Partly Sunny
  • Sun11/1Low 47°High 68°

    Sunday: Mostly cloudy, with a high near 68. Southeast wind around 3 mph.

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

    Mostly Cloudy
  • Mon11/2Low 47°High 68°

    Monday: Partly sunny, with a high near 68.

    Monday Night: Partly cloudy, with a low around 47.

    Partly Sunny
  • Tue11/3Low 52°High 71°

    Tuesday: Partly sunny, with a high near 71.

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

    Partly Sunny
  • Wed11/445% chance of precipitationLow 57°High 72°

    Wednesday: A chance of rain showers after 7am. Partly sunny, with a high near 72. Chance of precipitation is 40%.

    Wednesday Night: A chance of rain showers. Mostly cloudy, with a low around 57. Chance of precipitation is 50%.

    Chance Rain Showers
  • Thu11/562% chance of precipitationLow 53°High 70°

    Thursday: Rain showers likely. Mostly cloudy, with a high near 70. Chance of precipitation is 60%.

    Thursday Night: Rain showers likely. Mostly cloudy, with a low around 53.

    Rain Showers Likely
  • Fri11/6Model blend48% chance of precipitationLow 48°High 64°

    Friday: Chance of rain. High near 64°. Low that night near 48°. About 0.18 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.

  • Sat11/7Model blend24% chance of precipitationLow 44°High 60°

    Saturday: Partly cloudy, slight chance of rain. High near 60°. Low that night near 44°.

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

  • Sun11/8Model blend19% chance of precipitationLow 43°High 60°

    Sunday: Mostly cloudy. High near 60°. Low that night near 43°. About 0.03 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 40.322, -79.715 from the NWS PBZ office, updated 10/30/2026, 1:21 PM PT · Official forecast on weather.gov

Days 8 to 10: NOAA National Blend of Models, station KAGC (Pittsburgh/Allegheny Cnty, 11 mi), model run 10/30/2026, 4:00 PM EDT

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. Now62°Sunny0%12 mph
  2. 6 PM60°Clear0%10 mph
  3. 7 PM55°Clear0%9 mph
  4. 8 PM51°Mostly Clear0%7 mph
  5. 9 PM49°Partly Cloudy0%5 mph
  6. 10 PM47°Partly Cloudy0%5 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 North Irwin, PA 15642 right now?
The latest observation from Pittsburgh - Allegheny County Airport was 61°F and clear, reported at 10/30/2026, 4:55 PM EDT.
What is the high temperature today in North Irwin, PA 15642?
The National Weather Service forecast for this afternoon calls for a high near 65°F. Sunny.
Will it rain in North Irwin, PA 15642 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 North Irwin, PA 15642?
The first 7 days come from the National Weather Service forecast. Days 8 to 10 (Nov 6 to Nov 8) come from the NOAA National Blend of Models, with highs of 60°F to 64°F and up to a 48% chance of precipitation. Model guidance this far out often changes.
What time is sunrise and sunset in North Irwin, PA 15642 today?
Sunrise is about 7:46 AM EDT and sunset is about 6:18 PM EDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in North Irwin, PA 15642?
At Murrysville 2 SW, the 1991 to 2020 normal high in October is 65°F and the normal low is 43°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 (Mon Valley Area)
55ModeratePM2.5
AQI forecast tomorrow (Mon Valley Area)
40GoodPM2.5

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
7:46 AM
Sunset
6:18 PM
Daylight
10 hr 32 min
Moon
Waning Gibbous 77% lit
First light (civil dawn)
7:18 AM
Last light (civil dusk)
6:46 PM
Moonrise
9:55 PM
Moonset
1 PM

Normal October weather

Climate

Normal October high 65°, low 43°, precipitation 3.36 in for the month. 1991 to 2020 normals at Murrysville 2 SW, 6 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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