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Pewaukee, WI Weather Tomorrow

Find out what tomorrow's weather looks like in Pewaukee with a complete 5 day forecast featuring daily precipitation forecasts, changing sky conditions, daytime highs, overnight lows, Fahrenheit and Celsius temperatures, sunrise, sunset, wind chill, and local wind details for the Pewaukee area and around Waukesha county, Wisconsin.
Updated: Thu Sep 3rd 2026 12:15 AM CDT
Pewaukee, WI Weather – 9-3 – Scattered Showers
87° / 70°
Scattered Showers
Daytime highs will reach 87°F with lows dropping to 70°F in Pewaukee, where on and off showers are set to occur. Rainfall predicted to have a 70% chance with an estimated 0.11in. Wind will be moderate, blowing around 15mph on average and gusts of 24.2mph at 9 PM. The humidity will be on the higher side, averaging about 78%, the maximum being 95% at 11 PM and 52% being its lowest at 3 PM. Barometric pressure is its highest of 29.91inHg at 8 AM, a lowest point of 29.82inHg at 9 PM with an avg 29.88inHg.
Pewaukee, WI Weather – 9-4 – Scattered Thunderstorms
86° / 66°

Weather Tomorrow

Scattered Thunderstorms
Thunder and lightning are likely in Pewaukee, with a high of 86°F and a low of 66°F. The chance of rain is 82% with an estimated 0.16in. Wind will be moderate, blowing around 14mph on average and gusts of 26.3mph at 7 AM. High humidity with average of 86% is anticipated, the maximum being 99% at 6 AM and 56% being its lowest at 2 PM. Barometric pressure is its highest of 29.96inHg at 5 AM, a lowest point of 29.84inHg at 3 AM with an avg 29.89inHg.
Pewaukee, WI Weather – 9-5 – Fog
79° / 66°
Fog
Fog is in the forecast for Pewaukee, with a high of 79°F and a low of 66°F. The chance of rain is 79% with an estimated 0.18in. Wind will be moderate, blowing around 11mph on average and gusts of 19.7mph at 3 PM. High humidity with average of 89% is anticipated, the maximum being 99% at 6 AM and 71% being its lowest at 1 PM. Barometric pressure is its highest of 30.01inHg at 10 PM, a lowest point of 29.87inHg at 1 AM with an avg 29.93inHg.
Pewaukee, WI Weather – 9-6 – Sunny
73° / 64°
Sunny
Pewaukee is set for sunshine with temperatures peaking at 73°F and dipping to 64°F. There might be light rainfall having a 12% chance. Wind will be moderate, blowing around 13mph on average and gusts of 17.8mph at 4 AM. The humidity will be on the higher side, averaging about 77%, the maximum being 96% at 6 AM and 53% being its lowest at 1 PM. Barometric pressure is its highest of 30.11inHg at 12 PM, a lowest point of 30.01inHg at 12 AM with an avg 30.08inHg.
Pewaukee, WI Weather – 9-7 – Overcast
74° / 63°
Overcast
Daytime highs will reach 74°F with lows dropping to 63°F in Pewaukee, where skies will be overcast. There might be light rainfall having a 14% chance. Wind will be moderate, blowing around 12mph on average and gusts of 27.6mph at 10 PM. The humidity will be on the higher side, averaging about 76%, the maximum being 94% at 6 AM and 54% being its lowest at 1 PM. Barometric pressure is its highest of 30.14inHg at 8 AM, a lowest point of 30.04inHg at 11 PM with an avg 30.09inHg.
Pewaukee, WI Weather – 9-8 – Overcast
90° / 69°
Overcast
Highs will reach 90°F with lows near 69°F in Pewaukee, where overcast is. There's a very small chance of rainfall, only about 9%. Wind will be moderate, blowing around 16mph on average and gusts of 37.7mph at 10 PM. The humidity will be on the higher side, averaging about 61%, the maximum being 75% at 12 AM and 45% being its lowest at 1 PM. Barometric pressure is its highest of 30.02inHg at 12 AM, a lowest point of 29.87inHg at 11 PM with an avg 29.93inHg.

Currently

Patchy Rain Nearby 75°F
29.89 inHg.
Barometer
83%
Humidity
W 3.6 mph
Wind
Patchy Rain Nearby

5 Day Forecast Nearby

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