National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Mason City Municipal Airport (KMCW)

Lat: 43.15°NLon: 93.33°WElev: 1188ft.

Fair

68°F

20°C

Humidity 78%
Wind Speed SE 9 mph
Barometer 29.91 in (1012.1 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 16 Oct 6:53 pm CDT
Extended Forecast for

Chapin IA

  • Tonight

    Tonight: Partly cloudy, with a low around 59. South southeast wind 11 to 13 mph, with gusts as high as 21 mph.

    Low: 59 °F

    Partly Cloudy

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 75. Breezy, with a south wind 11 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Chance
    Showers and
    Breezy

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 49. West southwest wind 3 to 8 mph.

    Low: 49 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny, with a high near 70. Southwest wind 5 to 11 mph becoming northwest in the afternoon.

    High: 70 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 40. Northwest wind 10 to 13 mph, with gusts as high as 20 mph.

    Low: 40 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 43.

    Low: 43 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 59. South southeast wind 11 to 13 mph, with gusts as high as 21 mph.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 75. Breezy, with a south wind 11 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 49. West southwest wind 3 to 8 mph.
Saturday
Mostly sunny, with a high near 70. Southwest wind 5 to 11 mph becoming northwest in the afternoon.
Saturday Night
A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 40. Northwest wind 10 to 13 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 61.
Sunday Night
Clear, with a low around 43.
Monday
Sunny, with a high near 68.
Monday Night
Partly cloudy, with a low around 40.
Tuesday
Mostly sunny, with a high near 54. Breezy.
Tuesday Night
Mostly clear, with a low around 32.
Wednesday
Mostly sunny, with a high near 60.
Wednesday Night
Partly cloudy, with a low around 37.
Thursday
Mostly sunny, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chapin IA
 42.84°N 93.23°W
Last Update:
5:46 pm CDT Oct 16, 2025
Forecast Valid:
7pm CDT Oct 16, 2025-6pm CDT Oct 23, 2025
 
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