Friday, August 21, 2026

Severe storms possible today, sunshine returns for weekend fairgoers

Friday's Severe Potential:

Overnight, the Storm Prediction Center upgraded the entire Stateline to a level 2 of 5 Slight Risk for severe weather this afternoon and evening. 

 

 

Today is one of those days where what happens later will largely depend on how the atmosphere responds to the early round of rain and storms. The first batch is expected to arrive around or shortly after the midday in the form of scattered showers and storms. After that pushes on through, the second wave will enter the western Great Lakes, giving us a another opportunity for not only thunderstorms, but strong to sever storms. Again, the placement and intensity of this round is a bit more uncertain. 

IF enough instability can rebuild, additional storms may develop along an approaching and slow-moving cold front over southern Wisconsin before tracking south and southeast into northern Illinois between 4PM and 5PM. Any storms that become severe will be able to produce damaging winds and large hail, with even the possibility of a tornado or two due to the turning in the atmosphere. I know it's a busy day with fairs, football games, and outdoor plans, but make sure you have multiple ways to get severe alerts should severe storms develop. 
 

Winnebago County Fair:

Speaking of the Winnebago County Fair, the weather for the rest of the weekend is looking solid. Saturday should remain dry, with a light northwest wind and afternoon highs in the low 80s. While a stray shower or storm can't be completely ruled out, most locations will stay rain-free. Sunday looks even better, with plenty of sun and highs in the upper 70s. 

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