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

37°F

3°C

Humidity 82%
Wind Speed N 9 mph
Barometer 29.74 in (1006.7 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 10 Mar 2:53 am CDT
Extended Forecast for

Chapin IA

  • Overnight

    Overnight: Mostly clear, with a low around 36. North northeast wind around 7 mph.

    Low: 36 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 57. East wind 10 to 15 mph, with gusts as high as 18 mph.

    High: 57 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of rain between 1am and 5am. Increasing clouds, with a low around 31. Northeast wind around 14 mph, with gusts as high as 18 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 31 °F

    Mostly Cloudy
    then Chance
    Rain

  • Wednesday

    Wednesday: A chance of rain and snow before 8am, then a chance of snow between 8am and 1pm. Cloudy through mid morning, then gradual clearing, with a high near 42. Windy, with a north northwest wind 17 to 22 mph, with gusts as high as 26 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    High: 42 °F

    Windy. Chance
    Rain/Snow
    then Chance
    Snow

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 26. Northwest wind 6 to 11 mph.

    Low: 26 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly cloudy, with a high near 52. Windy.

    High: 52 °F

    Mostly Cloudy
    and Windy

  • Thursday Night

    Thursday Night: A chance of rain before 1am, then a slight chance of rain and snow. Mostly cloudy, with a low around 31. Windy. Chance of precipitation is 50%.

    Low: 31 °F

    Chance Rain
    and Breezy
    then Chance
    Rain/Snow and
    Windy

  • Friday

    Friday: Partly sunny, with a high near 44. Windy.

    High: 44 °F

    Partly Sunny
    and Windy

  • Friday Night

    Friday Night: A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy
    then Chance
    Snow

Detailed Forecast

Overnight
Mostly clear, with a low around 36. North northeast wind around 7 mph.
Tuesday
Mostly sunny, with a high near 57. East wind 10 to 15 mph, with gusts as high as 18 mph.
Tuesday Night
A chance of rain between 1am and 5am. Increasing clouds, with a low around 31. Northeast wind around 14 mph, with gusts as high as 18 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A chance of rain and snow before 8am, then a chance of snow between 8am and 1pm. Cloudy through mid morning, then gradual clearing, with a high near 42. Windy, with a north northwest wind 17 to 22 mph, with gusts as high as 26 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Wednesday Night
Mostly clear, with a low around 26. Northwest wind 6 to 11 mph.
Thursday
Mostly cloudy, with a high near 52. Windy.
Thursday Night
A chance of rain before 1am, then a slight chance of rain and snow. Mostly cloudy, with a low around 31. Windy. Chance of precipitation is 50%.
Friday
Partly sunny, with a high near 44. Windy.
Friday Night
A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 30.
Saturday
Mostly cloudy, with a high near 47.
Saturday Night
Rain and snow likely. Cloudy, with a low around 28. Blustery. Chance of precipitation is 70%.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 36. Windy. Chance of precipitation is 50%.
Sunday Night
Mostly cloudy, with a low around 12. Windy.
Monday
Mostly sunny, with a high near 26.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chapin IA
 42.84°N 93.23°W
Last Update:
1:26 am CDT Mar 10, 2026
Forecast Valid:
3am CDT Mar 10, 2026-6pm CDT Mar 16, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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