Irwin Weather Forecast
- 66
- 83
Increasing Clouds
- 64
- 82
Rain Showers
- 53
- 77
Slight Chance Rain Showers
- 55
- 78
Mostly Sunny
- 61
- 82
Partly Sunny
- 63
- 84
Partly Sunny
Today 20 Jul Westmoreland
Mostly sunny. Highs in the lower 80s. Light and variable Winds, becoming southwest around 5 Mph this afternoon.
Tonight 20 Jul Westmoreland
Mostly cloudy. Lows in the mid 60s. South Winds around 5 Mph.
Irwin Temperature Statistics
July Temperature
Pittsburgh - Allegheny County Airport (11.2 miles)
Lowest 17 July, 2026
66 °FAverage July
77.7 °FHighest 2 July, 2026
93 °F
Climate (2021–2026)
Pittsburgh - Allegheny County Airport (11.2 miles)
Average Low 2021–2026
46.1 °FAverage 2021–2026
54.7 °FAverage High 2021–2026
63.4 °F