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

8°F

-13°C

Humidity 66%
Wind Speed N 8 mph
Barometer 30.32 in (1029.3 mb)
Dewpoint -1°F (-18°C)
Visibility 10.00 mi
Wind Chill-4°F (-20°C)
Last update 29 Jan 12:53 pm CST
Extended Forecast for

Chapin IA

  • This Afternoon

    This Afternoon: Sunny, with a high near 12. Wind chill values as low as zero. North wind around 7 mph.

    High: 12 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around -3. Wind chill values as low as -15. North northwest wind around 6 mph becoming calm.

    Low: -3 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny and cold, with a high near 8. Wind chill values as low as -15. North wind 7 to 15 mph, with gusts as high as 20 mph.

    High: 8 °F

    Cold

  • Friday Night

    Friday Night: Mostly clear, with a low around -4. Wind chill values as low as -15. North northwest wind 6 to 10 mph.

    Low: -4 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 16. Northwest wind around 6 mph becoming south southwest in the afternoon.

    High: 16 °F

    Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of snow after midnight. Partly cloudy, with a low around 6.

    Low: 6 °F

    Partly Cloudy
    then Chance
    Snow

  • Sunday

    Sunday: Snow likely, mainly before noon. Mostly cloudy, with a high near 27. Chance of precipitation is 60%.

    High: 27 °F

    Snow Likely

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 14.

    Low: 14 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 24.

    High: 24 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 12. Wind chill values as low as zero. North wind around 7 mph.
Tonight
Partly cloudy, with a low around -3. Wind chill values as low as -15. North northwest wind around 6 mph becoming calm.
Friday
Mostly sunny and cold, with a high near 8. Wind chill values as low as -15. North wind 7 to 15 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around -4. Wind chill values as low as -15. North northwest wind 6 to 10 mph.
Saturday
Sunny, with a high near 16. Northwest wind around 6 mph becoming south southwest in the afternoon.
Saturday Night
A 30 percent chance of snow after midnight. Partly cloudy, with a low around 6.
Sunday
Snow likely, mainly before noon. Mostly cloudy, with a high near 27. Chance of precipitation is 60%.
Sunday Night
Mostly cloudy, with a low around 14.
Monday
Partly sunny, with a high near 24.
Monday Night
Mostly cloudy, with a low around 12.
Tuesday
Mostly cloudy, with a high near 24.
Tuesday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 12.
Wednesday
Partly sunny, with a high near 25.
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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:
10:57 am CST Jan 29, 2026
Forecast Valid:
1pm CST Jan 29, 2026-6pm CST Feb 4, 2026
 
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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