Current conditions at

Mason City Municipal Airport (KMCW)

Lat: 43.15°NLon: 93.33°WElev: 1188ft.

Fair

36°F

2°C

Humidity 52%
Wind Speed S 9 mph
Barometer 30.10 in (1019.6 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 29 Mar 12:53 am CDT
Extended Forecast for

Clear Lake IA

  • Overnight

    Overnight: Mostly cloudy, with a steady temperature around 38. South wind 11 to 14 mph, with gusts as high as 20 mph.

    Low: 38 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 68. South wind 10 to 14 mph, with gusts as high as 18 mph.

    High: 68 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 41. South wind around 7 mph.

    Low: 41 °F

    Mostly Clear

  • Monday

    Monday: Increasing clouds, with a high near 79. Breezy, with a south southeast wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 22 mph.

    High: 79 °F

    Sunny then
    Partly Sunny
    and Breezy

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am.  Mostly cloudy, with a low around 45. Breezy, with a south southwest wind 11 to 16 mph, with gusts as high as 22 mph.  Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 45 °F

    Chance
    Showers and
    Breezy

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms.  Mostly cloudy, with a high near 57. Windy.  Chance of precipitation is 20%.

    High: 57 °F

    Windy. Slight
    Chance
    T-storms then
    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 27. Windy.

    Low: 27 °F

    Mostly Cloudy
    and Windy

  • Wednesday

    Wednesday: Partly sunny, with a high near 47.

    High: 47 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 38. South wind 11 to 14 mph, with gusts as high as 20 mph.
Sunday
Mostly sunny, with a high near 68. South wind 10 to 14 mph, with gusts as high as 18 mph.
Sunday Night
Mostly clear, with a low around 41. South wind around 7 mph.
Monday
Increasing clouds, with a high near 79. Breezy, with a south southeast wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 22 mph.
Monday Night
A chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 45. Breezy, with a south southwest wind 11 to 16 mph, with gusts as high as 22 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A slight chance of showers and thunderstorms. Mostly cloudy, with a high near 57. Windy. Chance of precipitation is 20%.
Tuesday Night
Mostly cloudy, with a low around 27. Windy.
Wednesday
Partly sunny, with a high near 47.
Wednesday Night
Mostly cloudy, with a low around 28.
Thursday
A chance of snow before 1pm, then a chance of rain and snow. Partly sunny, with a high near 45. Breezy. Chance of precipitation is 30%.
Thursday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 33. Breezy.
Friday
A 40 percent chance of rain. Partly sunny, with a high near 51. Breezy.
Friday Night
Rain likely. Mostly cloudy, with a low around 38. Breezy. Chance of precipitation is 60%.
Saturday
A 50 percent chance of rain. Mostly cloudy, with a high near 51. Windy.
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ABOUT THIS FORECAST

 
Point Forecast:
Clear Lake IA
 43.13°N 93.37°W
10:56 pm CDT Mar 28, 2026
1am CDT Mar 29, 2026-6pm CDT Apr 4, 2026
 
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Additional Resources

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