Carnegie Weather Forecast
- 68
- 80
Chance Rain Showers
- 72
- 86
Thunderstorms Likely
- 62
- 83
Rain Showers Likely
- 61
- 81
Partly Sunny
- 68
- 85
Chance Rain Showers
- 71
- 90
Chance Thunderstorms
Today 18 Jul Allegheny
Mostly cloudy. A chance of Showers with a slight chance of Thunderstorms this afternoon. Highs around 80. East Winds around 5 Mph. Chance of rain 40 percent.
Tonight 18 Jul Allegheny
Partly cloudy in the Evening, then becoming mostly cloudy. A slight chance of Showers and Thunderstorms. Patchy fog after midnight. Humid with Lows in the upper 60s. East Winds around 5 Mph in the Evening, becoming light and variable. Chance of rain 20 percent.
Carnegie Temperature Statistics
July Temperature
Pittsburgh - Allegheny County Airport (9.3 miles)
Lowest 4 July, 2025
64.7 °FAverage July
76.3 °FHighest 7 July, 2025
89.7 °F
Climate (2020–Present)
Pittsburgh - Allegheny County Airport (9.3 miles)
Average Low 2020–2025
46.2 °FAverage 2020–2025
54.7 °FAverage High 2020–2025
63.4 °F