Current conditions at

Wittman Regional Airport (KOSH)

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

Fair

76°F

24°C

Humidity 50%
Wind Speed NE 10 mph
Barometer 29.92 in (1011.9 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 28 Jul 3:53 pm CDT
Detailed forecast for

Calumet County

Tonight
Clear. Lows around 60. Northeast wind 5 to 10 mph in the evening becoming light and variable.
Wednesday
Sunny. Highs in the lower 80s. Light and variable wind.
Wednesday Night
Mostly clear. Lows in the middle 60s. Light and variable wind.
Thursday
Sunny in the morning then becoming partly cloudy. Highs in the middle 80s. Southwest wind 5 to 10 mph.
Thursday Night
Muggy. Partly cloudy in the evening then becoming mostly cloudy. Lows in the upper 60s. Southwest wind 5 to 10 mph.
Friday
Humid. Mostly cloudy with a 50 percent chance of light rain. Highs in the lower 80s.
Friday Night
Muggy. Rain likely. Lows in the middle 60s. Chance of rain 60 percent.
Saturday
Partly sunny with a chance of rain. Highs in the upper 70s. Chance of rain 40 percent.
Saturday Night
Partly cloudy. Lows in the lower 60s.
Sunday
Mostly sunny. Highs in the upper 70s.
Sunday Night And Monday
Clear. Lows around 60. Highs in the lower 80s.
Monday Night And Tuesday
Mostly clear. Lows in the middle 60s. Highs in the middle 80s.



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221 PM CDT Tue Jul 28 2026
 
 

Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database