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

41°F

5°C

Humidity 57%
Wind Speed E 15 mph
Barometer 30.14 in (1021.0 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 1 Apr 9:53 am CDT
Extended Forecast for

Clear Lake IA

  • Today

    Today: A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 50. Breezy, with an east wind 16 to 18 mph, with gusts as high as 25 mph.

    High: 50 °F

    Breezy.
    Partly Sunny
    then Slight
    Chance
    Showers

  • Tonight

    Tonight: Showers, mainly after 7pm. Low around 35. Windy, with an east wind 18 to 22 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 35 °F

    Showers and
    Windy

  • Thursday

    Thursday: Showers before 1pm, then showers and possibly a thunderstorm between 1pm and 4pm, then showers after 4pm. High near 51. Breezy, with an east wind 14 to 18 mph becoming west in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 51 °F

    Showers and
    Breezy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 31. Blustery, with a west northwest wind 8 to 17 mph, with gusts as high as 23 mph.

    Low: 31 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Cloudy

  • Friday

    Friday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 52. East northeast wind 8 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 52 °F

    Chance
    Showers then
    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 33. Breezy. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 33 °F

    Showers and
    Breezy

  • Saturday

    Saturday: A 20 percent chance of showers. Mostly cloudy, with a high near 41. Windy.

    High: 41 °F

    Slight Chance
    Showers and
    Windy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 26. Windy.

    Low: 26 °F

    Mostly Cloudy
    and Windy

  • Sunday

    Sunday: Mostly sunny, with a high near 49. Breezy.

    High: 49 °F

    Mostly Sunny
    and Breezy

Detailed Forecast

Today
A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 50. Breezy, with an east wind 16 to 18 mph, with gusts as high as 25 mph.
Tonight
Showers, mainly after 7pm. Low around 35. Windy, with an east wind 18 to 22 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday
Showers before 1pm, then showers and possibly a thunderstorm between 1pm and 4pm, then showers after 4pm. High near 51. Breezy, with an east wind 14 to 18 mph becoming west in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday Night
Mostly cloudy, with a low around 31. Blustery, with a west northwest wind 8 to 17 mph, with gusts as high as 23 mph.
Friday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 52. East northeast wind 8 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and possibly a thunderstorm. Low around 33. Breezy. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
A 20 percent chance of showers. Mostly cloudy, with a high near 41. Windy.
Saturday Night
Mostly cloudy, with a low around 26. Windy.
Sunday
Mostly sunny, with a high near 49. Breezy.
Sunday Night
Partly cloudy, with a low around 31.
Monday
A 30 percent chance of showers. Partly sunny, with a high near 51.
Monday Night
Mostly cloudy, with a low around 27.
Tuesday
Mostly sunny, with a high near 48.
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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:
6:51 am CDT Apr 1, 2026
Forecast Valid:
10am CDT Apr 1, 2026-6pm CDT Apr 7, 2026
 
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