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

Mason City Municipal Airport (KMCW)

Lat: 43.15°NLon: 93.33°WElev: 1188ft.

Mostly Cloudy

33°F

1°C

Humidity 92%
Wind Speed Calm
Barometer 30.18 in (1022.3 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 6 Nov 2:53 am CST
Extended Forecast for

Clear Lake IA

  • Overnight

    Overnight: Partly cloudy, with a low around 32. South southeast wind around 6 mph.

    Low: 32 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 54. Windy, with a south wind 7 to 12 mph increasing to 16 to 21 mph in the morning. Winds could gust as high as 32 mph.

    High: 54 °F

    Mostly Cloudy
    and Windy

  • Thursday Night

    Thursday Night: Cloudy during the early evening, then gradual clearing, with a low around 41. South wind 10 to 14 mph becoming west after midnight. Winds could gust as high as 22 mph.

    Low: 41 °F

    Gradual
    Clearing

  • Friday

    Friday: Mostly sunny, with a high near 57. Breezy, with a west wind 11 to 17 mph, with gusts as high as 24 mph.

    High: 57 °F

    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 29. Northwest wind 5 to 10 mph becoming light north.

    Low: 29 °F

    Mostly Cloudy

  • Saturday

    Saturday: Rain and snow likely. Mostly cloudy, with a high near 38. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    High: 38 °F

    Rain/Snow
    Likely

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 17.

    Low: 17 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 31. Blustery.

    High: 31 °F

    Mostly Sunny
    and Blustery

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 15.

    Low: 15 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 32. South southeast wind around 6 mph.
Thursday
Mostly cloudy, with a high near 54. Windy, with a south wind 7 to 12 mph increasing to 16 to 21 mph in the morning. Winds could gust as high as 32 mph.
Thursday Night
Cloudy during the early evening, then gradual clearing, with a low around 41. South wind 10 to 14 mph becoming west after midnight. Winds could gust as high as 22 mph.
Friday
Mostly sunny, with a high near 57. Breezy, with a west wind 11 to 17 mph, with gusts as high as 24 mph.
Friday Night
Mostly cloudy, with a low around 29. Northwest wind 5 to 10 mph becoming light north.
Saturday
Rain and snow likely. Mostly cloudy, with a high near 38. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
Partly cloudy, with a low around 17.
Sunday
Mostly sunny, with a high near 31. Blustery.
Sunday Night
Mostly clear, with a low around 15.
Monday
Mostly sunny, with a high near 34.
Monday Night
Partly cloudy, with a low around 22.
Veterans Day
Partly sunny, with a high near 47.
Tuesday Night
Partly cloudy, with a low around 31.
Wednesday
Sunny, with a high near 50.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Clear Lake IA
 43.13°N 93.37°W
Last Update:
10:01 pm CST Nov 5, 2025
Forecast Valid:
3am CST Nov 6, 2025-6pm CST Nov 12, 2025
 
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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