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.

Mostly Cloudy

22°F

-6°C

Humidity 68%
Wind Speed SE 6 mph
Barometer 30.37 in (1029.7 mb)
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Wind Chill14°F (-10°C)
Last update 1 Mar 10:53 pm CST
Extended Forecast for

Sheffield IA

  • Tonight

    Tonight: Mostly clear, with a low around 18. Southeast wind 3 to 5 mph.

    Low: 18 °F

    Mostly Clear

  • Monday

    Monday: Partly sunny, with a high near 39. South wind 6 to 10 mph.

    High: 39 °F

    Partly Sunny

  • Monday Night

    Monday Night: Rain and freezing rain likely, possibly mixed with snow before 3am, then a chance of rain between 3am and 5am, then a chance of freezing rain after 5am. Mostly cloudy, with a low around 30. South southeast wind 3 to 6 mph. Chance of precipitation is 70%. Little or no ice accumulation expected. Little or no snow accumulation expected.

    Low: 30 °F

    Wintry Mix
    Likely

  • Tuesday

    Tuesday: A 40 percent chance of rain before noon. Mostly cloudy, with a high near 43. East northeast wind 3 to 6 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 43 °F

    Chance Rain
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 31. East northeast wind 3 to 5 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 31 °F

    Mostly Cloudy
    then Chance
    Rain

  • Wednesday

    Wednesday: A 30 percent chance of rain. Mostly sunny, with a high near 45. New precipitation amounts of less than a tenth of an inch possible.

    High: 45 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 35.

    Low: 35 °F

    Chance Rain

  • Thursday

    Thursday: A 20 percent chance of rain before noon. Partly sunny, with a high near 56.

    High: 56 °F

    Slight Chance
    Rain then
    Partly Sunny

  • Thursday Night

    Thursday Night: A 50 percent chance of rain after midnight. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy
    then Chance
    Rain

Detailed Forecast

Tonight
Mostly clear, with a low around 18. Southeast wind 3 to 5 mph.
Monday
Partly sunny, with a high near 39. South wind 6 to 10 mph.
Monday Night
Rain and freezing rain likely, possibly mixed with snow before 3am, then a chance of rain between 3am and 5am, then a chance of freezing rain after 5am. Mostly cloudy, with a low around 30. South southeast wind 3 to 6 mph. Chance of precipitation is 70%. Little or no ice accumulation expected. Little or no snow accumulation expected.
Tuesday
A 40 percent chance of rain before noon. Mostly cloudy, with a high near 43. East northeast wind 3 to 6 mph. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 31. East northeast wind 3 to 5 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A 30 percent chance of rain. Mostly sunny, with a high near 45. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 35.
Thursday
A 20 percent chance of rain before noon. Partly sunny, with a high near 56.
Thursday Night
A 50 percent chance of rain after midnight. Mostly cloudy, with a low around 41.
Friday
Rain. High near 61. Breezy. Chance of precipitation is 80%.
Friday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 32.
Saturday
Mostly sunny, with a high near 53.
Saturday Night
Mostly clear, with a low around 34.
Sunday
Sunny, with a high near 61. Breezy.
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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:
10:12 pm CST Mar 1, 2026
Forecast Valid:
11pm CST Mar 1, 2026-6pm CDT Mar 8, 2026
 
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Additional Resources

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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