Hazardous Weather Conditions

Current conditions at

Wittman Regional Airport (KOSH)

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

Fair

86°F

30°C

Humidity 63%
Wind Speed SW 5 mph
Barometer 29.87 in (1009.7 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 17 Jul 7:53 pm CDT
Detailed forecast for

Winnebago County

Tonight
Muggy. Partly cloudy. Lows in the lower 70s. Southwest wind 10 to 15 mph. Heat indices to 100.
Saturday
Humid. Mostly sunny. Patchy smoke. Highs in the middle 80s. Northwest wind 10 to 15 mph.
Saturday Night
Cooler. Mostly clear. Areas of smoke in the evening, then smoke after midnight. Lows in the lower 60s. Northeast wind 5 to 10 mph in the evening becoming light and variable.
Sunday
Sunny. Highs in the lower 80s. Light and variable wind.
Sunday Night
Partly cloudy. A chance of showers after midnight. Lows in the middle 60s. South wind 10 to 15 mph. Chance of rain 30 percent.
Monday
Humid. Showers likely and a chance of thunderstorms. Highs in the middle 80s. Chance of rain 70 percent.
Monday Night
Muggy. Showers likely and a chance of thunderstorms. Lows in the upper 60s. Chance of rain 70 percent.
Tuesday And Tuesday Night
Breezy. Clear. Highs around 80. Lows in the upper 50s.
Wednesday
Mostly sunny. Highs in the middle 70s.
Wednesday Night And Thursday
Clear. Lows in the upper 50s. Highs in the upper 70s.
Thursday Night And Friday
Mostly clear. Lows in the lower 60s. Highs in the upper 70s.



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658 PM CDT Fri Jul 17 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database