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 and Breezy

46°F

8°C

Humidity 54%
Wind Speed N 24 G 31 mph
Barometer 29.71 in (1005.9 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 17 Apr 6:53 pm CDT
Extended Forecast for

Chapin IA

  • Tonight

    Tonight: Mostly cloudy, with a low around 31. Windy, with a northwest wind 18 to 22 mph, with gusts as high as 33 mph.

    Low: 31 °F

    Mostly Cloudy
    and Windy

  • Saturday

    Saturday: Sunny, with a high near 48. Windy, with a west northwest wind 16 to 23 mph, with gusts as high as 29 mph.

    High: 48 °F

    Sunny and
    Windy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 31. Blustery, with a west northwest wind 12 to 17 mph decreasing to 6 to 11 mph in the evening. Winds could gust as high as 23 mph.

    Low: 31 °F

    Mostly Clear
    and Blustery
    then Mostly
    Clear

  • Sunday

    Sunday: Sunny, with a high near 52. Northwest wind 8 to 15 mph, with gusts as high as 20 mph.

    High: 52 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 28. North northwest wind 5 to 9 mph becoming light and variable.

    Low: 28 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 62. Breezy.

    High: 62 °F

    Sunny then
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 47. Breezy.

    Low: 47 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 46.

    Low: 46 °F

    Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 31. Windy, with a northwest wind 18 to 22 mph, with gusts as high as 33 mph.
Saturday
Sunny, with a high near 48. Windy, with a west northwest wind 16 to 23 mph, with gusts as high as 29 mph.
Saturday Night
Mostly clear, with a low around 31. Blustery, with a west northwest wind 12 to 17 mph decreasing to 6 to 11 mph in the evening. Winds could gust as high as 23 mph.
Sunday
Sunny, with a high near 52. Northwest wind 8 to 15 mph, with gusts as high as 20 mph.
Sunday Night
Clear, with a low around 28. North northwest wind 5 to 9 mph becoming light and variable.
Monday
Sunny, with a high near 62. Breezy.
Monday Night
Partly cloudy, with a low around 47. Breezy.
Tuesday
Sunny, with a high near 73.
Tuesday Night
Clear, with a low around 46.
Wednesday
Sunny, with a high near 77. Breezy.
Wednesday Night
Partly cloudy, with a low around 56. Breezy.
Thursday
A 40 percent chance of showers. Partly sunny, with a high near 76. Windy.
Thursday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 54. Windy. Chance of precipitation is 60%.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 66. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chapin IA
 42.84°N 93.23°W
Last Update:
6:07 pm CDT Apr 17, 2026
Forecast Valid:
7pm CDT Apr 17, 2026-6pm CDT Apr 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation