Glenshaw, PA Weather Tomorrow

Keep up with changing weather in Glenshaw using tomorrow's forecast and the next 5 days of precipitation potential, daytime and nighttime forecasts, temperature highs and lows in Fahrenheit and Celsius, sunrise and sunset times, cloud cover, wind chill, wind speed, and wind direction for the Glenshaw area and around Allegheny county, Pennsylvania.
Updated: Mon Aug 31st 2026 1:00 PM EDT
Glenshaw, PA Weather – 8-31 – Overcast
81° / 70°
Overcast
In Glenshaw, skies will be overcast with highs near 81°F and lows around 70°F. Rainfall predicted to have a 72% chance with an estimated 0.07in. Winds will be light at 5mph and gusts of 8.5mph at 5 PM. High humidity with average of 81% is anticipated, the maximum being 87% at 11 PM and 57% being its lowest at 4 PM. Barometric pressure is its highest of 30.09inHg at 2 PM, a lowest point of 30.03inHg at 6 PM with an avg 30.05inHg.
Glenshaw, PA Weather – 9-1 – Overcast
86° / 73°

Weather Tomorrow

Overcast
Glenshaw could see overcast with daytime highs of 86°F and nighttime lows near 73°F. There might be light rainfall having a 17% chance. Winds will be light at 9mph and gusts of 20.2mph at 8 AM. The humidity will be on the higher side, averaging about 74%, the maximum being 84% at 12 AM and 48% being its lowest at 3 PM. Barometric pressure is its highest of 30.06inHg at 10 AM, a lowest point of 29.97inHg at 6 PM with an avg 30.02inHg.
Glenshaw, PA Weather – 9-2 – Sunny
91° / 73°
Sunny
It will be sunny in Glenshaw, with a high of 91°F and a low of 73°F. There's a very small chance of rainfall, only about 7%. Wind will be moderate, blowing around 11mph on average and gusts of 22.2mph at 8 PM. The humidity will be on the higher side, averaging about 66%, the maximum being 85% at 7 AM and 43% being its lowest at 4 PM. Barometric pressure is its highest of 30.04inHg at 9 AM, a lowest point of 29.93inHg at 8 PM with an avg 29.99inHg.
Glenshaw, PA Weather – 9-3 – Sunny
88° / 70°
Sunny
In Glenshaw, it will be sunny with highs near 88°F and lows around 70°F. The chance of rain is 76% with an estimated 0.36in. Wind will be moderate, blowing around 12mph on average and gusts of 22.6mph at 8 AM. The humidity will be on the higher side, averaging about 76%, the maximum being 96% at 8 AM and 48% being its lowest at 4 PM. Barometric pressure is its highest of 30.01inHg at 9 AM, a lowest point of 29.87inHg at 6 PM with an avg 29.94inHg.
Glenshaw, PA Weather – 9-4 – Sunny
87° / 65°
Sunny
In Glenshaw, a sunny day is likely with a high near 87°F and a low around 65°F. The chance of rain is 80% with an estimated 0.72in. Wind will be moderate, blowing around 11mph on average and gusts of 15.7mph at 4 PM. The humidity will be on the higher side, averaging about 79%, the maximum being 96% at 11 PM and 49% being its lowest at 10 AM. Barometric pressure is its highest of 30.02inHg at 9 AM, a lowest point of 29.88inHg at 5 PM with an avg 29.95inHg.
Glenshaw, PA Weather – 9-5 – Sunny
75° / 59°
Sunny
Daytime highs will reach 75°F with lows dropping to 59°F in Glenshaw, where it will be sunny. There's a very small chance of rainfall, only about 6%. Winds will be light at 9mph and gusts of 22.2mph at 8 PM. The humidity will be on the higher side, averaging about 69%, the maximum being 96% at 12 AM and 39% being its lowest at 5 PM. Barometric pressure is its highest of 30.01inHg at 11 PM, a lowest point of 29.92inHg at 5 PM with an avg 29.94inHg.

Currently

Overcast 76°F
30.11 inHg.
Barometer
66%
Humidity
SSW 4 mph
Wind
Overcast

5 Day Forecast Nearby

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