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

53°F

12°C

Humidity 64%
Wind Speed W 8 mph
Barometer 29.99 in (1015.0 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 15 Jun 3:53 am CDT
Extended Forecast for

Sheffield IA

  • Today

    Today: Increasing clouds, with a high near 76. West wind 5 to 13 mph, with gusts as high as 20 mph.

    High: 76 °F

    Increasing
    Clouds

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 3am. Partly cloudy, with a low around 54. South southwest wind 7 to 9 mph. Chance of precipitation is 20%.

    Low: 54 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: Sunny, with a high near 73. Breezy, with a northwest wind 15 to 18 mph, with gusts as high as 23 mph.

    High: 73 °F

    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 54. Light and variable wind becoming south southeast 5 to 10 mph after midnight. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 54 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 78. Breezy, with a south southeast wind 15 to 18 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 78 °F

    Showers and
    Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 54. Windy.

    Low: 54 °F

    Partly Cloudy
    and Windy

  • Thursday

    Thursday: Mostly sunny, with a high near 73. Breezy.

    High: 73 °F

    Mostly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 77.

    High: 77 °F

    Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 76. West wind 5 to 13 mph, with gusts as high as 20 mph.
Tonight
A slight chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 3am. Partly cloudy, with a low around 54. South southwest wind 7 to 9 mph. Chance of precipitation is 20%.
Tuesday
Sunny, with a high near 73. Breezy, with a northwest wind 15 to 18 mph, with gusts as high as 23 mph.
Tuesday Night
A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 54. Light and variable wind becoming south southeast 5 to 10 mph after midnight. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers and possibly a thunderstorm. High near 78. Breezy, with a south southeast wind 15 to 18 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday Night
Partly cloudy, with a low around 54. Windy.
Thursday
Mostly sunny, with a high near 73. Breezy.
Thursday Night
Mostly clear, with a low around 51.
Juneteenth
Sunny, with a high near 77.
Friday Night
Partly cloudy, with a low around 55.
Saturday
Mostly sunny, with a high near 78.
Saturday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 57.
Sunday
A 30 percent chance of showers. Mostly sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sheffield IA
 42.89°N 93.23°W
Last Update:
3:53 am CDT Jun 15, 2026
Forecast Valid:
4am CDT Jun 15, 2026-6pm CDT Jun 21, 2026
 
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Additional Resources

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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