Grant County, WI Weather Tomorrow

From tomorrow through the next 5 days, stay updated on Grant County weather with daily precipitation forecasts, changing sky conditions, daytime highs, overnight lows, Fahrenheit and Celsius temperatures, sunrise, sunset, wind chill, and local wind details for the Grant County area.
Updated: Tue Sep 29th 2026 7:45 PM CDT
Grant County, WI Weather – 9-29 – Overcast
69° / 55°
Overcast
Skies will be overcast in Grant County, with a high of 69°F and a low of 55°F. Rainfall predicted to have a 60% chance with an estimated 0.03in. Wind will be moderate, blowing around 12mph on average and gusts of 24.6mph at 11 PM. The humidity will be on the higher side, averaging about 77%, the maximum being 81% at 11 PM and 74% being its lowest at 9 PM. Barometric pressure is its highest of 29.85inHg at 8 PM, a lowest point of 29.84inHg at 9 PM with an avg 29.85inHg.
Grant County, WI Weather – 9-30 – Light Rain Shower
66° / 58°

Weather Tomorrow

Light Rain Shower
Grant County may see rain showers, with daytime highs of 66°F and overnight lows near 58°F. The chance of rain is 95% with an estimated 0.84in. Wind will be moderate, blowing around 13mph on average and gusts of 28.3mph at 3 AM. High humidity with average of 98% is anticipated, the maximum being 99% at 11 PM and 90% being its lowest at 12 AM. Barometric pressure is its highest of 29.85inHg at 12 AM, a lowest point of 29.77inHg at 5 PM with an avg 29.8inHg.
Grant County, WI Weather – 10-1 – Light Rain Shower
64° / 59°
Light Rain Shower
Daytime highs will reach 64°F with lows dropping to 59°F in Grant County, where it will rain at times. The chance of rain is 92% with an estimated 1.03in. Wind will be moderate, blowing around 12mph on average and gusts of 27.3mph at 11 PM. High humidity with average of 91% is anticipated, the maximum being 99% at 7 AM and 64% being its lowest at 11 PM. Barometric pressure is its highest of 30.02inHg at 11 PM, a lowest point of 29.78inHg at 5 AM with an avg 29.86inHg.
Grant County, WI Weather – 10-2 – Sunny
60° / 48°
Sunny
Daytime highs will reach 60°F with lows dropping to 48°F in Grant County, where it will be sunny. There's a very small chance of rainfall, only about 6%. Wind will be moderate, blowing around 12mph on average and gusts of 28.3mph at 2 AM. Humidity levels should be comfortable, sitting around 60% on average, the maximum being 74% at 8 AM and 50% being its lowest at 3 PM. Barometric pressure is its highest of 30.34inHg at 11 PM, a lowest point of 30.04inHg at 12 AM with an avg 30.24inHg.
Grant County, WI Weather – 10-3 – Sunny
61° / 46°
Sunny
Daytime highs will reach 61°F with lows dropping to 46°F in Grant County, where it will be sunny. There's a very small chance of rainfall, only about 10%. Winds will be light at 9mph and gusts of 16.6mph at 4 AM. The humidity will be on the higher side, averaging about 73%, the maximum being 88% at 9 PM and 56% being its lowest at 2 PM. Barometric pressure is its highest of 30.34inHg at 4 AM, a lowest point of 30.15inHg at 5 PM with an avg 30.26inHg.
Grant County, WI Weather – 10-4 – Sunny
57° / 47°
Sunny
Grant County is set for a sunny day with temperatures peaking at 57°F and dipping to 47°F. There might be light rainfall having a 24% chance with an estimated 0.01in. Wind will be moderate, blowing around 14mph on average and gusts of 25.5mph at 10 AM. The humidity will be on the higher side, averaging about 77%, the maximum being 97% at 7 AM and 57% being its lowest at 4 PM. Barometric pressure is its highest of 30.38inHg at 11 PM, a lowest point of 30.18inHg at 2 AM with an avg 30.27inHg.

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