As part of the University of Wisconsin–Madison’s Rural Partnerships Institute, the SCO collects, analyzes, and shares climate information.

Joined March 2023
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The far southern stateline of Wisconsin has been upgraded to a level 4 out of 5 threat for severe weather today. Please keep an eye on the weather and take all warnings seriously.
8:32am CDT #SPC Public Severe Weather Outlook #PWO concerning #iawx #ilwx #inwx #miwx #mowx #wiwx spc.noaa.gov/products/outloo…
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Wisconsin State Climatology Office retweeted
Nice views as the storm moved across campus. 1 hour time lapse as the storm approached (looking west). aos.wisc.edu/weather/wx_obs/…
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Wisconsin State Climatology Office retweeted
CULVER'S BLUE BARN DAMAGED: With severe weather across Wisconsin, @culvers Blue Barn on the east side of Highway 151 near Beaver Dam has severe damage. @CBS58 Photographer Corey Ferris took these shots.
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Wisconsin State Climatology Office retweeted
A severe thunderstorm watch has been issued for parts of Illinois, Iowa, Minnesota and Wisconsin until 7 PM CDT
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Wisconsin State Climatology Office retweeted
While we have some storms ongoing early this morning, these have been largely sub-severe in our area. The real chance for severe weather ramps up this afternoon and evening with an all hazards event possible as multiple rounds of storms impact the region ⛈️
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After a record-wet and stormy April, May brought extreme changes. Read the full May and Spring 2026 climate summary on our website now! #wiwx
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Wednesday will be the toastiest (and muggiest) in Wisconsin, with heat indices reaching the 90s in southern and central counties
A widespread heat wave will build across the central U.S. through midweek before shifting to the East Coast, where it peaks on Friday, then slowly ease over the weekend. An early season heatwave can often be more dangerous and pose a greater risk for heat-related illness. This will be the most significant heat so far this summer for many locations. The most important things you can do in significant heat are to stay hydrated and interrupt your exposure to the heat by taking breaks out of the sun and/or being in cooled locations. Visit weather.gov for the latest forecast.
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On this day in 1984, a deadly F5 tornado struck the Iowa County village of Barneveld. Twisters of this strength are rare in Wisconsin, making up only 0.2% of the state's tornadoes since 1955. #wiwx
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Wisconsin State Climatology Office retweeted
[6/8/26] 5 AM 🟠Accompanying the heat and humidity on Wednesday will be a Slight (level 2/5) to Enhanced (level 3/5) risk for severe weather. Although the exact timing and coverage of storms remains uncertain, all severe hazards will be possible. Stay tuned to the forecast! #wiwx
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Following record-breaking rainfall in April, Wisconsin entered May largely free of drought concerns. Now, moderate drought (D1) has returned to 13.5% of the state, with abnormal dryness (D0) covering a vast majority of Wisconsin.
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Heat can be more dangerous than many realize, but every heat-related illness and death is preventable. Learn more about Heat Awareness Day in Wisconsin: wem.wi.gov/readywisconsin-re…
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Milwaukee is a prime example of Wisconsin's precipitation ping-pong pattern. After recording its wettest April on record (9.49"), Brew City swung to its driest May, receiving just 0.36" of precip all month. That's 3.18" below the amount Milwaukee typically receives in May.
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May was a stark change from April. Severe weather was less frequent, and dry conditions quietly returned. We'll have a full May Climate Summary available in the coming weeks. In the meantime, check out our latest blog to see what summer might have in store.
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Wisconsin State Climatology Office retweeted
After a record wet April, things have been dry this month. Abnormally dry conditions are expanding across western and southeastern Wisconsin in the latest Drought Monitor. With below normal precipitation more likely than not over the next 10 days, expect this to continue.
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With summerlike heat in the forecast, take a look at Wisconsin's summer 2026 outlook. Current guidance suggests a slight lean toward drier-than-normal conditions in northwest Wisconsin, while temperature signals remain uncertain. More details here: climatology.nelson.wisc.edu/…
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Thinking about Wisconsin's last spring freeze? As of May 22, our first-order stations may have recorded their final freeze of the season. The next two weeks are likely to be warmer than normal, but Wisconsin has surprised us before! June freezes aren't impossible.
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Wisconsin State Climatology Office retweeted
We've documented a brief, EF-0 tornado southwest of Shullsburg (Lafayette County) from the late Friday night/very early Saturday morning storms. Peak winds were estimated around 85mph w/damage to a couple metal barns and a number of trees. #wiwx
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Attention northern Wisconsinites: Chance of frost tonight & tomorrow night as you could see temperatures in the mid-30s with the potential for light winds 🥶 Learn more here: climatology.nelson.wisc.edu/…
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Wisconsin State Climatology Office retweeted
Find the warm front: Wisconet style.
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