Marathon County, WI Weather Tomorrow

Explore tomorrow's Marathon County weather before planning your week with a detailed 5 day forecast featuring precipitation chances, day and night conditions, high and low temperatures in Fahrenheit and Celsius, sunrise, sunset, sky conditions, wind chill, and wind speed with direction for the Marathon County area.
Updated: Fri Aug 28th 2026 11:30 AM CDT
Marathon County, WI Weather – 8-28 – Sunny
84° / 54°
Sunny
It will be sunny in Marathon County, with a high of 84°F and a low of 54°F. There's a very small chance of rainfall, only about 7%. Winds will be light at 9mph and gusts of 11.2mph at 5 PM. The humidity will be on the higher side, averaging about 63%, the maximum being 53% at 11 PM and 32% being its lowest at 3 PM. Barometric pressure is its highest of 30.09inHg at 12 PM, a lowest point of 30inHg at 6 PM with an avg 30.03inHg.
Marathon County, WI Weather – 8-29 – Overcast
68° / 58°

Weather Tomorrow

Overcast
It will be overcast in Marathon County, with a high of 68°F and a low of 58°F. The chance of rain is 89% with an estimated 0.43in. Wind will be moderate, blowing around 11mph on average and gusts of 25.5mph at 9 AM. High humidity with average of 84% is anticipated, the maximum being 99% at 3 PM and 54% being its lowest at 12 AM. Barometric pressure is its highest of 30.03inHg at 2 AM, a lowest point of 29.92inHg at 11 PM with an avg 29.99inHg.
Marathon County, WI Weather – 8-30 – Fog
86° / 61°
Fog
Marathon County may see fog, with daytime highs of 86°F and overnight lows near 61°F. There's a moderate 50% chance of rainfall with an estimated 0.03in. Wind will be moderate, blowing around 12mph on average and gusts of 28.5mph at 8 AM. The humidity will be on the higher side, averaging about 72%, the maximum being 99% at 4 AM and 37% being its lowest at 5 PM. Barometric pressure is its highest of 29.91inHg at 12 AM, a lowest point of 29.71inHg at 6 PM with an avg 29.81inHg.
Marathon County, WI Weather – 8-31 – Overcast
95° / 66°
Overcast
Marathon County is set for overcast with temperatures peaking at 95°F and dipping to 66°F. There's a moderate 39% chance of rainfall with an estimated 0.02in. Wind will be moderate, blowing around 14mph on average and gusts of 22.4mph at 7 PM. The humidity will be on the higher side, averaging about 69%, the maximum being 99% at 4 AM and 20% being its lowest at 6 PM. Barometric pressure is its highest of 29.88inHg at 12 AM, a lowest point of 29.66inHg at 8 PM with an avg 29.77inHg.
Marathon County, WI Weather – 9-1 – Overcast
88° / 69°
Overcast
In Marathon County, it will be overcast with highs near 88°F and lows around 69°F. There might be light rainfall having a 22% chance with an estimated 0.01in. Winds will be light at 10mph and gusts of 25mph at 3 AM. The humidity will be on the higher side, averaging about 64%, the maximum being 96% at 5 AM and 41% being its lowest at 10 AM. Barometric pressure is its highest of 29.88inHg at 9 AM, a lowest point of 29.7inHg at 12 AM with an avg 29.8inHg.
Marathon County, WI Weather – 9-2 – Sunny
86° / 67°
Sunny
Daytime highs will reach 86°F with lows dropping to 67°F in Marathon County, where bright and sunny conditions. There might be light rainfall having a 13% chance with an estimated 0in. Winds will be light at 9mph and gusts of 19mph at 7 AM. The humidity will be on the higher side, averaging about 70%, the maximum being 91% at 7 AM and 43% being its lowest at 4 PM. Barometric pressure is its highest of 29.88inHg at 11 PM, a lowest point of 29.76inHg at 4 PM with an avg 29.8inHg.

Currently

Sunny 77°F
30.1 inHg.
Barometer
49%
Humidity
SW 4.7 mph
Wind
Sunny

5 Day Forecast Nearby

More Local Information

Bookmark and Share

Get the LocalConditions.com App on Google Play
Sign up for a membership to go Ad free

Marathon County Community Weather Reports

Write your own Marathon County, WI report, forecast, or traffic update:


Will not be posted, shared or used for marketing!

Please note by clicking on "Post" you acknowledge that you have read our Privacy Policy and Terms of Service and the Marathon County, WI report and/or forecast you are posting is in compliance with such terms. If you are under 18, do not submit this form. Be respectful! Inappropriate content will be removed by a moderator.