Slippery Rock, PA Weather Tomorrow

Explore tomorrow's Slippery Rock weather before planning your week with a detailed 5 day forecast featuring 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 Slippery Rock area and around Butler county, Pennsylvania.
Updated: Wed Oct 21st 2026 7:15 PM EDT
Slippery Rock, PA Weather – 10-21 – Sunny
63° / 38°
Sunny
In Slippery Rock, a sunny day is likely with a high near 63°F and a low around 38°F. There's a very small chance of rainfall, only about 3%. Winds will be light at 7mph and gusts of 13.2mph at 9 PM. Humidity levels should be comfortable, sitting around 59% on average, the maximum being 78% at 11 PM and 59% being its lowest at 9 PM. Barometric pressure is its highest of 30.21inHg at 9 PM, a lowest point of 30.19inHg at 8 PM with an avg 30.2inHg.
Slippery Rock, PA Weather – 10-22 – Sunny
63° / 38°

Weather Tomorrow

Sunny
A sunny day is in the forecast for Slippery Rock, with a high of 63°F and a low of 38°F. There's a very small chance of rainfall, only about 4%. Winds will be light at 8mph and gusts of 18.8mph at 7 PM. The humidity will be on the higher side, averaging about 65%, the maximum being 87% at 11 PM and 42% being its lowest at 1 PM. Barometric pressure is its highest of 30.27inHg at 10 PM, a lowest point of 30.15inHg at 3 PM with an avg 30.21inHg.
Slippery Rock, PA Weather – 10-23 – Sunny
61° / 42°
Sunny
Sunshine is in the forecast for Slippery Rock, with a high of 61°F and a low of 42°F. There's a very small chance of rainfall, only about 8%. Winds will be light at 7mph and gusts of 13.4mph at 7 PM. The humidity will be on the higher side, averaging about 75%, the maximum being 96% at 8 AM and 47% being its lowest at 4 PM. Barometric pressure is its highest of 30.44inHg at 10 PM, a lowest point of 30.28inHg at 2 AM with an avg 30.36inHg.
Slippery Rock, PA Weather – 10-24 – Sunny
60° / 39°
Sunny
Slippery Rock may see a sunny day, with daytime highs of 60°F and overnight lows near 39°F. There's a very small chance of rainfall, only about 7%. Winds will be light at 6mph and gusts of 14.5mph at 8 PM. The humidity will be on the higher side, averaging about 69%, the maximum being 87% at 7 AM and 44% being its lowest at 3 PM. Barometric pressure is its highest of 30.52inHg at 9 AM, a lowest point of 30.43inHg at 4 PM with an avg 30.47inHg.
Slippery Rock, PA Weather – 10-25 – Sunny
63° / 40°
Sunny
A sunny day is in the forecast for Slippery Rock, with a high of 63°F and a low of 40°F. There's a very small chance of rainfall, only about 9%. Winds will be light at 6mph and gusts of 15.9mph at 8 AM. The humidity will be on the higher side, averaging about 73%, the maximum being 89% at 2 AM and 48% being its lowest at 3 PM. Barometric pressure is its highest of 30.53inHg at 8 AM, a lowest point of 30.4inHg at 6 PM with an avg 30.47inHg.
Slippery Rock, PA Weather – 10-26 – Overcast
65° / 44°
Overcast
In Slippery Rock, cloud-filled skies are likely with a high near 65°F and a low around 44°F. There might be light rainfall having a 14% chance. Winds will be light at 7mph and gusts of 13mph at 7 AM. The humidity will be on the higher side, averaging about 76%, the maximum being 93% at 7 AM and 52% being its lowest at 2 PM. Barometric pressure is its highest of 30.41inHg at 12 AM, a lowest point of 30.25inHg at 5 PM with an avg 30.33inHg.

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