Grindstone, PA Weather Tomorrow

Whether you're making plans for tomorrow or later this week, the Grindstone 5 day forecast includes precipitation probability, daily and nightly weather conditions, high and low temperature trends, sunrise and sunset information, sky cover, wind speed, wind direction, and wind chill for the Grindstone area and around Fayette county, Pennsylvania.
Updated: Sat Nov 7th 2026 10:45 AM EST
Grindstone, PA Weather – 11-7 – Overcast
47° / 35°
Overcast
Grindstone may see cloud-filled skies, with daytime highs of 47°F and overnight lows near 35°F. There might be light rainfall having a 18% chance with an estimated 0in. Wind will be moderate, blowing around 14mph on average and gusts of 25.5mph at 1 PM. The humidity will be on the higher side, averaging about 77%, the maximum being 92% at 11 PM and 65% being its lowest at 4 PM. Barometric pressure is its highest of 30.13inHg at 8 PM, a lowest point of 30.04inHg at 1 PM with an avg 30.08inHg.
Grindstone, PA Weather – 11-8 – Sunny
56° / 35°

Weather Tomorrow

Sunny
In Grindstone, it will be sunny with highs near 56°F and lows around 35°F. There's a very small chance of rainfall, only about 7%. Wind will be moderate, blowing around 14mph on average and gusts of 35.4mph at 9 PM. The humidity will be on the higher side, averaging about 69%, the maximum being 96% at 6 AM and 47% being its lowest at 2 PM. Barometric pressure is its highest of 30.15inHg at 6 AM, a lowest point of 29.92inHg at 4 PM with an avg 30.05inHg.
Grindstone, PA Weather – 11-9 – Sunny
56° / 38°
Sunny
In Grindstone, it will be sunny with highs near 56°F and lows around 38°F. There's a very small chance of rainfall, only about 9% with an estimated 0in. Wind will be moderate, blowing around 13mph on average and gusts of 32.4mph at 12 AM. The humidity will be on the higher side, averaging about 71%, the maximum being 91% at 7 AM and 46% being its lowest at 2 PM. Barometric pressure is its highest of 30.15inHg at 10 PM, a lowest point of 29.97inHg at 1 AM with an avg 30.07inHg.
Grindstone, PA Weather – 11-10 – Sunny
61° / 38°
Sunny
Daytime highs will reach 61°F with lows dropping to 38°F in Grindstone, where bright and sunny conditions. There's a very small chance of rainfall, only about 9%. Wind will be moderate, blowing around 13mph on average and gusts of 27.7mph at 8 AM. The humidity will be on the higher side, averaging about 78%, the maximum being 92% at 2 AM and 52% being its lowest at 12 PM. Barometric pressure is its highest of 30.14inHg at 12 AM, a lowest point of 29.96inHg at 2 PM with an avg 30.05inHg.
Grindstone, PA Weather – 11-11 – Partly Cloudy
61° / 42°
Partly Cloudy
Daytime highs will reach 61°F with lows dropping to 42°F in Grindstone, where it will be cloudy. There might be light rainfall having a 20% chance with an estimated 0in. Wind will be moderate, blowing around 11mph on average and gusts of 20.4mph at 12 AM. The humidity will be on the higher side, averaging about 78%, the maximum being 96% at 7 AM and 53% being its lowest at 2 PM. Barometric pressure is its highest of 30inHg at 1 AM, a lowest point of 29.81inHg at 10 PM with an avg 29.93inHg.
Grindstone, PA Weather – 11-12 – Scattered Showers
53° / 44°
Scattered Showers
Daytime highs will reach 53°F with lows dropping to 44°F in Grindstone, where showers likely at times. The chance of rain is 86% with an estimated 0.36in. Winds will be light at 5mph and gusts of 25.1mph at 7 PM. The humidity will be on the higher side, averaging about 80%, the maximum being 93% at 7 AM and 67% being its lowest at 4 PM. Barometric pressure is its highest of 29.89inHg at 12 AM, a lowest point of 29.59inHg at 11 PM with an avg 29.67inHg.

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