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West Mifflin, PA 15122 Weather

It is 57°F and mostly cloudy in West Mifflin, PA 15122, observed at 11:15 AM EDT. Today: Sunny, high 66°F, low 39°F. Hourly and 10-day forecast from the National Weather Service. Times are local (EDT).

West Mifflin, PA 15122 current weather

57°F

Mostly Cloudy

H 66° / L 39°Feels like 57°

  • No rain expected in the next 12 hours

Observed at Pittsburgh - Allegheny County Airport (2.3 mi away), 10/30/2026, 11:15 AM EDT

Hourly forecast

NWS, updated 10/30/2026, 8:26 AM PT

  1. Now60°
  2. 12 PM62°
  3. 1 PM63°
  4. 2 PM64°
  5. 3 PM65°
  6. 4 PM64°
  7. 5 PM63°
  8. 6 PM61°
  9. 7 PM56°
  10. 8 PM53°
  11. 9 PM51°
  12. 10 PM48°
  13. 11 PM46°
  14. 12 AM45°Sat
  15. 1 AM43°
  16. 2 AM43°
  17. 3 AM42°
  18. 4 AM41°
  19. 5 AM41°
  20. 6 AM40°
  21. 7 AM40°
  22. 8 AM40°
  23. 9 AM42°
  24. 10 AM46°
  25. 11 AM52°
  26. 12 PM55°
  27. 1 PM58°
  28. 2 PM59°
  29. 3 PM61°
  30. 4 PM61°
  31. 5 PM61°
  32. 6 PM60°
  33. 7 PM58°
  34. 8 PM54°
  35. 9 PM52°
  36. 10 PM51°
  37. 11 PM50°
  38. 12 AM50°Sun
  39. 1 AM49°
  40. 1 AM49°
  41. 2 AM48°
  42. 3 AM48°
  43. 4 AM48°
  44. 5 AM47°
  45. 6 AM47°
  46. 7 AM48°
  47. 8 AM50°
  48. 9 AM54°

10-day forecast

Tap a day for details

  • Today10/30Low 39°High 66°

    Today: Sunny, with a high near 66. Northwest wind around 9 mph.

    Tonight: Patchy fog after 3am. Partly cloudy, with a low around 39. North wind 1 to 7 mph.

    Sunny
  • Sat10/31Low 46°High 62°

    Saturday: Patchy fog before 9am. Partly sunny, with a high near 62. Northeast wind 1 to 6 mph.

    Saturday Night: Mostly cloudy, with a low around 46. East wind around 5 mph.

    Patchy Fog then Partly Sunny
  • Sun11/116% chance of precipitationLow 48°High 68°

    Sunday: Mostly cloudy, with a high near 68. Southeast wind around 5 mph.

    Sunday Night: A slight chance of rain showers after 1am. Mostly cloudy, with a low around 48. Chance of precipitation is 20%.

    Mostly Cloudy
  • Mon11/216% chance of precipitationLow 49°High 66°

    Monday: A slight chance of rain showers before 7am. Partly sunny, with a high near 66.

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

    Slight Chance Rain Showers then Partly Sunny
  • Tue11/311% chance of precipitationLow 52°High 72°

    Tuesday: Partly sunny, with a high near 72.

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

    Partly Sunny
  • Wed11/443% chance of precipitationLow 54°High 71°

    Wednesday: A chance of rain showers after 7am. Partly sunny, with a high near 71. 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
  • Thu11/554% chance of precipitationLow 48°High 67°

    Thursday: A chance of rain showers. Mostly cloudy, with a high near 67. Chance of precipitation is 50%.

    Thursday Night: A chance of rain showers. Mostly cloudy, with a low around 48.

    Chance Rain Showers
  • Fri11/6Model blend59% chance of precipitationLow 48°High 63°

    Friday: Chance of rain. High near 63°. Low that night near 48°. About 0.47 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 blend29% chance of precipitationLow 43°High 59°

    Saturday: Mostly cloudy, slight chance of rain. High near 59°. Low that night near 43°.

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

  • Sun11/8Model blend15% chance of precipitationLow 41°High 58°

    Sunday: Partly cloudy. High near 58°. Low that night near 41°.

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

Forecast for 40.361, -79.879 from the NWS PBZ office, updated 10/30/2026, 8:26 AM PT · Official forecast on weather.gov

Days 8 to 10: NOAA National Blend of Models, station KAGC (Pittsburgh/Allegheny Cnty, 2 mi), model run 10/30/2026, 10:00 AM 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. Now60°Sunny0%9 mph
  2. 12 PM62°Sunny0%9 mph
  3. 1 PM63°Sunny0%9 mph
  4. 2 PM64°Sunny0%9 mph
  5. 3 PM65°Sunny0%9 mph
  6. 4 PM64°Sunny0%8 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 West Mifflin, PA 15122 right now?
The latest observation from Pittsburgh - Allegheny County Airport was 57°F and mostly cloudy, reported at 10/30/2026, 11:15 AM EDT.
What is the high temperature today in West Mifflin, PA 15122?
The National Weather Service forecast for today calls for a high near 66°F. Sunny.
Will it rain in West Mifflin, PA 15122 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 West Mifflin, PA 15122?
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 58°F to 63°F and up to a 59% chance of precipitation. Model guidance this far out often changes.
What time is sunrise and sunset in West Mifflin, PA 15122 today?
Sunrise is about 7:47 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 West Mifflin, PA 15122?
At Mckeesport, the 1991 to 2020 normal high in October is 65°F and the normal low is 42°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)
55ModeratePM2.5

UV index guide · Air quality

Drought

By county

Allegheny County, week of 10/27/2026

No drought or abnormal dryness in this county.

Sun and moon

Local time, center of the area

Sunrise
7:47 AM
Sunset
6:18 PM
Daylight
10 hr 32 min
Moon
Waning Gibbous 79% lit
First light (civil dawn)
7:19 AM
Last light (civil dusk)
6:47 PM
Moonrise
9:56 PM
Moonset
1:01 PM

Normal October weather

Climate

Normal October high 65°, low 42°, precipitation 3.20 in for the month. 1991 to 2020 normals at Mckeesport, 2 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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