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

56°F

13°C

Humidity 51%
Wind Speed W 8 mph
Barometer 29.68 in (1005.1 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 17 Mar 7:53 pm CDT
Extended Forecast for

Chapin IA

Winter Storm Watch March 19, 04:00am until March 20, 01:00am
High Wind Watch March 19, 07:00am until March 19, 08:00pm
Click here for hazard details and duration
Winter Storm Watch
High Wind Watch

  • Tonight

    Tonight: Partly cloudy, with a low around 35. West southwest wind 7 to 9 mph becoming northeast after midnight.

    Low: 35 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 67. Breezy, with an east southeast wind 9 to 18 mph, with gusts as high as 25 mph.

    High: 67 °F

    Mostly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: A slight chance of rain before 1am, then rain and possibly a thunderstorm between 1am and 4am, then rain after 4am. Low around 34. Windy, with a northeast wind 14 to 22 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 34 °F

    Slight Chance
    Rain and
    Breezy then
    Rain and
    Windy

  • Wednesday

    Wednesday: Snow, possibly mixed with rain, becoming all snow after 4pm. Some thunder is also possible. Temperature falling to around 34 by 5pm. Very windy, with a north wind 26 to 31 mph increasing to 38 to 43 mph in the afternoon. Winds could gust as high as 55 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

    High: 38 °F⇓

    Rain/Snow and
    Very Windy

  • Wednesday Night

    Wednesday Night: Snow, mainly before 7pm. Areas of blowing snow. Low around 21. Windy, with a north northwest wind 29 to 34 mph decreasing to 21 to 26 mph after midnight. Winds could gust as high as 46 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 21 °F

    Snow and
    Areas Blowing
    Snow

  • Thursday

    Thursday: Sunny, with a high near 42. Breezy.

    High: 42 °F

    Sunny and
    Breezy then
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy

  • Friday

    Friday: A 30 percent chance of rain after 1pm. Partly sunny, with a high near 51.

    High: 51 °F

    Partly Sunny
    then Chance
    Rain

  • Friday Night

    Friday Night: A 30 percent chance of rain before 1am. Partly cloudy, with a low around 25.

    Low: 25 °F

    Chance Rain

Detailed Forecast

Tonight
Partly cloudy, with a low around 35. West southwest wind 7 to 9 mph becoming northeast after midnight.
Tuesday
Mostly sunny, with a high near 67. Breezy, with an east southeast wind 9 to 18 mph, with gusts as high as 25 mph.
Tuesday Night
A slight chance of rain before 1am, then rain and possibly a thunderstorm between 1am and 4am, then rain after 4am. Low around 34. Windy, with a northeast wind 14 to 22 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Snow, possibly mixed with rain, becoming all snow after 4pm. Some thunder is also possible. Temperature falling to around 34 by 5pm. Very windy, with a north wind 26 to 31 mph increasing to 38 to 43 mph in the afternoon. Winds could gust as high as 55 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Wednesday Night
Snow, mainly before 7pm. Areas of blowing snow. Low around 21. Windy, with a north northwest wind 29 to 34 mph decreasing to 21 to 26 mph after midnight. Winds could gust as high as 46 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Thursday
Sunny, with a high near 42. Breezy.
Thursday Night
Partly cloudy, with a low around 31.
Friday
A 30 percent chance of rain after 1pm. Partly sunny, with a high near 51.
Friday Night
A 30 percent chance of rain before 1am. Partly cloudy, with a low around 25.
Saturday
Sunny, with a high near 46.
Saturday Night
Partly cloudy, with a low around 30.
Sunday
A 40 percent chance of rain. Partly sunny, with a high near 50. Breezy.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 31. Chance of precipitation is 40%.
Monday
A chance of rain and snow. Partly sunny, with a high near 44. Breezy. Chance of precipitation is 30%.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Chapin IA
 42.84°N 93.23°W
Last Update:
7:33 pm CDT Mar 17, 2025
Forecast Valid:
8pm CDT Mar 17, 2025-6pm CDT Mar 24, 2025
 
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