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.

Overcast

46°F

8°C

Humidity 89%
Wind Speed S 12 mph
Barometer 29.92 in (1013.4 mb)
Dewpoint 43°F (6°C)
Visibility 8.00 mi
Wind Chill40°F (4°C)
Last update 5 Mar 4:53 pm CST
Extended Forecast for

Chapin IA

  • Tonight

    Tonight: A chance of showers and thunderstorms between 2am and 3am, then showers and possibly a thunderstorm after 3am. Low around 43. Southeast wind 7 to 11 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 43 °F

    Mostly Cloudy
    then Showers

  • Friday

    Friday: Showers and thunderstorms, mainly before 3pm, then showers likely and possibly a thunderstorm after 5pm. High near 65. South southwest wind 13 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 65 °F

    Showers

  • Friday Night

    Friday Night: Rain showers before 3am, then a chance of rain and snow showers. Some thunder is also possible. Low around 30. Blustery, with a southwest wind 11 to 18 mph becoming northwest in the evening. Winds could gust as high as 23 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

    Low: 30 °F

    Blustery.
    Showers then
    Rain/Snow
    Likely

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 45. Breezy, with a northwest wind 9 to 18 mph, with gusts as high as 22 mph.

    High: 45 °F

    Decreasing
    Clouds and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 34. Southwest wind 7 to 15 mph, with gusts as high as 20 mph.

    Low: 34 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 63. Windy.

    High: 63 °F

    Sunny and
    Windy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 45. Breezy.

    Low: 45 °F

    Mostly Clear
    and Breezy

  • Monday

    Monday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of showers and thunderstorms between 2am and 3am, then showers and possibly a thunderstorm after 3am. Low around 43. Southeast wind 7 to 11 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Friday
Showers and thunderstorms, mainly before 3pm, then showers likely and possibly a thunderstorm after 5pm. High near 65. South southwest wind 13 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
Rain showers before 3am, then a chance of rain and snow showers. Some thunder is also possible. Low around 30. Blustery, with a southwest wind 11 to 18 mph becoming northwest in the evening. Winds could gust as high as 23 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 45. Breezy, with a northwest wind 9 to 18 mph, with gusts as high as 22 mph.
Saturday Night
Mostly clear, with a low around 34. Southwest wind 7 to 15 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 63. Windy.
Sunday Night
Mostly clear, with a low around 45. Breezy.
Monday
Sunny, with a high near 65.
Monday Night
Mostly clear, with a low around 42.
Tuesday
A 30 percent chance of rain after noon. Mostly sunny, with a high near 68. Windy.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 34. Windy. Chance of precipitation is 40%.
Wednesday
Mostly sunny, with a high near 46. Windy.
Wednesday Night
Mostly clear, with a low around 26. Blustery.
Thursday
Mostly sunny, with a high near 49. Windy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Chapin IA
 42.84°N 93.23°W
Last Update:
5:06 pm CST Mar 5, 2026
Forecast Valid:
5pm CST Mar 5, 2026-6pm CDT Mar 12, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation