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

59°F

15°C

Humidity 75%
Wind Speed N 14 mph
Barometer 29.57 in (1000.8 mb)
Dewpoint 51°F (11°C)
Visibility NA
Last update 21 Mar 9:53 pm CDT
Extended Forecast for

Chapin IA

  • Tonight

    Tonight: Partly cloudy, with a low around 41. Windy, with a south wind 6 to 11 mph becoming north northeast 17 to 22 mph after midnight. Winds could gust as high as 34 mph.

    Low: 41 °F

    Mostly Clear
    then Partly
    Cloudy and
    Windy

  • Sunday

    Sunday: Partly sunny, with a steady temperature around 44. Windy, with a north wind 20 to 23 mph, with gusts as high as 31 mph.

    High: 44 °F

    Partly Sunny
    and Windy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 27. North wind 9 to 14 mph becoming light after midnight. Winds could gust as high as 22 mph.

    Low: 27 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 51. Light and variable wind becoming south 5 to 7 mph in the morning.

    High: 51 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 37. South wind 6 to 10 mph.

    Low: 37 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 60.

    High: 60 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 65.

    High: 65 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 41. Windy, with a south wind 6 to 11 mph becoming north northeast 17 to 22 mph after midnight. Winds could gust as high as 34 mph.
Sunday
Partly sunny, with a steady temperature around 44. Windy, with a north wind 20 to 23 mph, with gusts as high as 31 mph.
Sunday Night
Mostly clear, with a low around 27. North wind 9 to 14 mph becoming light after midnight. Winds could gust as high as 22 mph.
Monday
Mostly sunny, with a high near 51. Light and variable wind becoming south 5 to 7 mph in the morning.
Monday Night
Mostly cloudy, with a low around 37. South wind 6 to 10 mph.
Tuesday
Mostly cloudy, with a high near 60.
Tuesday Night
Mostly cloudy, with a low around 42.
Wednesday
Mostly cloudy, with a high near 65.
Wednesday Night
Mostly cloudy, with a low around 44.
Thursday
Partly sunny, with a high near 59. Windy.
Thursday Night
Mostly cloudy, with a low around 29. Blustery.
Friday
Partly sunny, with a high near 46.
Friday Night
Partly cloudy, with a low around 28.
Saturday
Mostly sunny, with a high near 50.
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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:
10:26 pm CDT Mar 21, 2026
Forecast Valid:
10pm CDT Mar 21, 2026-6pm CDT Mar 28, 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