National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Mason City Municipal Airport (KMCW)

Lat: 43.15°NLon: 93.33°WElev: 1188ft.

Fair

16°F

-9°C

Humidity 92%
Wind Speed S 10 mph
Barometer 29.85 in (1012.4 mb)
Dewpoint 14°F (-10°C)
Visibility 8.00 mi
Wind Chill4°F (-16°C)
Last update 2 Dec 12:53 pm CST
Extended Forecast for

Clear Lake IA

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 23. Wind chill values as low as 5. South wind around 10 mph.

    High: 23 °F

    Mostly Cloudy

  • Tonight

    Tonight: A chance of flurries between 11pm and midnight, then a slight chance of snow after midnight. Cloudy, with a steady temperature around 23. South wind 8 to 13 mph becoming northwest after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 20%.

    Low: 23 °F

    Cloudy then
    Slight Chance
    Snow

  • Wednesday

    Wednesday: Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 7 by 5pm. Wind chill values as low as -10. Blustery, with a north northwest wind 14 to 18 mph, with gusts as high as 25 mph.

    High: 22 °F⇓

    Decreasing
    Clouds and
    Blustery

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around -12. Wind chill values as low as -20. North northwest wind 8 to 13 mph becoming light west northwest after midnight. Winds could gust as high as 20 mph.

    Low: -12 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 11. Light and variable wind becoming south 8 to 13 mph in the morning. Winds could gust as high as 21 mph.

    High: 11 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 2.

    Low: 2 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 26.

    High: 26 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 11.

    Low: 11 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of snow after noon. Mostly cloudy, with a high near 22.

    High: 22 °F

    Mostly Cloudy
    then Chance
    Snow

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 23. Wind chill values as low as 5. South wind around 10 mph.
Tonight
A chance of flurries between 11pm and midnight, then a slight chance of snow after midnight. Cloudy, with a steady temperature around 23. South wind 8 to 13 mph becoming northwest after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 20%.
Wednesday
Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 7 by 5pm. Wind chill values as low as -10. Blustery, with a north northwest wind 14 to 18 mph, with gusts as high as 25 mph.
Wednesday Night
Mostly clear, with a low around -12. Wind chill values as low as -20. North northwest wind 8 to 13 mph becoming light west northwest after midnight. Winds could gust as high as 20 mph.
Thursday
Sunny, with a high near 11. Light and variable wind becoming south 8 to 13 mph in the morning. Winds could gust as high as 21 mph.
Thursday Night
Mostly cloudy, with a low around 2.
Friday
Mostly cloudy, with a high near 26.
Friday Night
Mostly cloudy, with a low around 11.
Saturday
A 30 percent chance of snow after noon. Mostly cloudy, with a high near 22.
Saturday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 3.
Sunday
Partly sunny, with a high near 14.
Sunday Night
Mostly cloudy, with a low around 3.
Monday
Mostly cloudy, with a high near 26.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Clear Lake IA
 43.15°N 93.37°W
Last Update:
10:06 am CST Dec 2, 2025
Forecast Valid:
1pm CST Dec 2, 2025-6pm CST Dec 8, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation