West Mifflin Weather Forecast
- 51
- 77
Becoming Sunny
- 53
- 79
Mostly Sunny
- 55
- 79
Partly Sunny
- 59
- 79
Chance Thunderstorms
- 53
- 74
Rain Showers
- 51
- 70
Mostly Sunny
Today 31 Aug Allegheny
Mostly sunny. Highs in the mid 70s. Northeast Winds 5 to 10 Mph.
Tonight 31 Aug Allegheny
Clear, cool with Lows around 50. Northeast Winds around 5 Mph.
West Mifflin Temperature Statistics
August Temperature
Pittsburgh - Allegheny County Airport (2.5 miles)
Lowest 3 August, 2025
56.6 °FAverage August
74.3 °FHighest 12 August, 2025
91.7 °F
Climate (2020–Present)
Pittsburgh - Allegheny County Airport (2.5 miles)
Average Low 2020–2025
46.2 °FAverage 2020–2025
54.7 °FAverage High 2020–2025
63.4 °F