Current conditions at

Wittman Regional Airport (KOSH)

Lat: 43.97° N Lon: 88.56° W Elev: 801 ft.

Fair

-2°F

-19°C

Humidity 59%
Wind Speed W 16 G 30 mph
Barometer 30.11 in (1023.1 mb)
Dewpoint -13°F (-25°C)
Visibility 9.00 mi
Wind Chill-23°F (-31°C)
Last update 19 Jan 11:53 am CST
Detailed forecast for

Winnebago County

Today
Windy. Colder. Mostly sunny. Some blowing and drifting snow. Nearly steady temperature around 1. West wind 20 to 30 mph. Wind chills to 25 below zero.
Tonight
Partly cloudy. Nearly steady temperature around 1 below. West wind 10 to 15 mph. Wind chills to 25 below zero.
Tuesday
Mostly sunny. Highs around 10 above zero. Southwest wind 10 to 15 mph. Wind chills to 25 below zero.
Tuesday Night
Light snow likely. Some snow accumulation possible. Nearly steady temperature around 10. South wind 5 to 10 mph. Chance of snow 70 percent.
Wednesday
Not as cold. Mostly cloudy with a 50 percent chance of light snow. Highs in the lower 20s. West wind 10 to 15 mph.
Wednesday Night
Mostly cloudy. Lows around 5 above zero.
Thursday And Thursday Night
Colder. Partly cloudy. Highs around 10 above zero. Lows around 10 below zero.
Friday And Friday Night
Colder. Mostly clear. Highs zero to 5 below. Lows 15 below to 20 below zero.
Saturday
Cold. Sunny. Highs around zero.
Saturday Night
Cold. Mostly clear. Lows 10 below to 15 below zero.
Sunday
Partly cloudy. Highs 5 to 10 above zero.



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1153 AM CST Mon Jan 19 2026
 
 

Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database