Rock County, WI Weather Tomorrow

Planning ahead? View tomorrow's Rock County weather along with a complete 5 day forecast that 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 Rock County area.
Updated: Sun Sep 13th 2026 10:00 PM CDT
Rock County, WI Weather – 9-13 – Sunny
68° / 54°
Sunny
Bright and sunny conditions in Rock County, with a high of 68°F and a low of 54°F. There's a moderate 36% chance of rainfall with an estimated 0.01in. Wind will be moderate, blowing around 15mph on average and gusts of 4mph at 11 PM. The humidity will be on the higher side, averaging about 61%, the maximum being 84% at 11 PM and 84% being its lowest at 11 PM. Barometric pressure is its highest of 30.19inHg at 11 PM, a lowest point of 30.19inHg at 11 PM with an avg 30.19inHg.
Rock County, WI Weather – 9-14 – Sunny
71° / 50°

Weather Tomorrow

Sunny
Rock County could see a sunny day with daytime highs of 71°F and nighttime lows near 50°F. There's a very small chance of rainfall, only about 9% with an estimated 0in. Wind will be moderate, blowing around 17mph on average and gusts of 43.4mph at 11 PM. The humidity will be on the higher side, averaging about 63%, the maximum being 88% at 5 AM and 36% being its lowest at 12 PM. Barometric pressure is its highest of 30.27inHg at 7 AM, a lowest point of 29.98inHg at 11 PM with an avg 30.16inHg.
Rock County, WI Weather – 9-15 – Light Rain Shower
78° / 63°
Light Rain Shower
In Rock County, it will rain at times with highs near 78°F and lows around 63°F. The chance of rain is 87% with an estimated 0.41in. Wind will be moderate, blowing around 19mph on average and gusts of 41.4mph at 2 AM. High humidity with average of 83% is anticipated, the maximum being 96% at 9 AM and 67% being its lowest at 12 PM. Barometric pressure is its highest of 30.23inHg at 11 PM, a lowest point of 29.95inHg at 12 AM with an avg 30.04inHg.
Rock County, WI Weather – 9-16 – Overcast
68° / 58°
Overcast
Rock County may see cloud-filled skies, with daytime highs of 68°F and overnight lows near 58°F. Rainfall predicted to have a 62% chance with an estimated 0.03in. Wind will be moderate, blowing around 11mph on average and gusts of 19.3mph at 9 AM. The humidity will be on the higher side, averaging about 79%, the maximum being 97% at 9 PM and 60% being its lowest at 1 PM. Barometric pressure is its highest of 30.33inHg at 12 PM, a lowest point of 30.23inHg at 12 AM with an avg 30.28inHg.
Rock County, WI Weather – 9-17 – Overcast
72° / 61°
Overcast
In Rock County, cloud-filled skies are likely with a high near 72°F and a low around 61°F. Rainfall predicted to have a 66% chance with an estimated 0.04in. Winds will be light at 10mph and gusts of 14.6mph at 7 PM. High humidity with average of 82% is anticipated, the maximum being 98% at 3 AM and 65% being its lowest at 2 PM. Barometric pressure is its highest of 30.29inHg at 10 AM, a lowest point of 30.23inHg at 5 PM with an avg 30.26inHg.
Rock County, WI Weather – 9-18 – Overcast
78° / 60°
Overcast
In Rock County, overcast is likely with a high near 78°F and a low around 60°F. There's a moderate 30% chance of rainfall with an estimated 0.01in. Wind will be moderate, blowing around 15mph on average and gusts of 33.1mph at 11 PM. The humidity will be on the higher side, averaging about 78%, the maximum being 92% at 3 AM and 62% being its lowest at 4 PM. Barometric pressure is its highest of 30.27inHg at 12 AM, a lowest point of 29.92inHg at 11 PM with an avg 30.12inHg.

Currently

Clear 55°F
30.19 inHg.
Barometer
81%
Humidity
NW 5.8 mph
Wind
Clear

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