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.

Overcast

34°F

1°C

Humidity 89%
Wind Speed N 14 mph
Barometer 29.82 in (1010.1 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 11 Mar 1:53 am CDT
Extended Forecast for

Sheffield IA

  • Overnight

    Overnight: A slight chance of snow between 4am and 5am, then a chance of rain and snow. Cloudy, with a low around 31. North wind 13 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 31 °F

    Chance
    Rain/Snow

  • Wednesday

    Wednesday: Rain and snow likely before 11am, then a slight chance of snow between 11am and noon. Cloudy through mid morning, then gradual clearing, with a high near 40. Windy, with a north northwest wind 17 to 24 mph, with gusts as high as 32 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 40 °F

    Windy.
    Rain/Snow
    Likely then
    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 26. West wind 6 to 10 mph.

    Low: 26 °F

    Mostly Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 51. Windy, with a south wind 6 to 11 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 33 mph.

    High: 51 °F

    Mostly Sunny
    then Mostly
    Cloudy and
    Windy

  • Thursday Night

    Thursday Night: Rain likely before 4am, then a slight chance of rain and snow. Mostly cloudy, with a low around 30. Windy, with a south wind 23 to 33 mph becoming west northwest after midnight. Winds could gust as high as 44 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 30 °F

    Windy. Rain
    Likely then
    Rain/Snow
    Likely

  • Friday

    Friday: Partly sunny, with a high near 41. Windy.

    High: 41 °F

    Partly Sunny
    and Windy

  • Friday Night

    Friday Night: A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy
    then Chance
    Snow

  • Saturday

    Saturday: A 20 percent chance of snow after 1pm. Cloudy, with a high near 44.

    High: 44 °F

    Cloudy then
    Slight Chance
    Snow

  • Saturday Night

    Saturday Night: Rain and snow, mainly after 1am. Low around 28. Blustery. Chance of precipitation is 80%.

    Low: 28 °F

    Chance
    Rain/Snow and
    Breezy then
    Rain/Snow and
    Blustery

Detailed Forecast

Overnight
A slight chance of snow between 4am and 5am, then a chance of rain and snow. Cloudy, with a low around 31. North wind 13 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Wednesday
Rain and snow likely before 11am, then a slight chance of snow between 11am and noon. Cloudy through mid morning, then gradual clearing, with a high near 40. Windy, with a north northwest wind 17 to 24 mph, with gusts as high as 32 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Wednesday Night
Mostly clear, with a low around 26. West wind 6 to 10 mph.
Thursday
Increasing clouds, with a high near 51. Windy, with a south wind 6 to 11 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 33 mph.
Thursday Night
Rain likely before 4am, then a slight chance of rain and snow. Mostly cloudy, with a low around 30. Windy, with a south wind 23 to 33 mph becoming west northwest after midnight. Winds could gust as high as 44 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Friday
Partly sunny, with a high near 41. Windy.
Friday Night
A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 27.
Saturday
A 20 percent chance of snow after 1pm. Cloudy, with a high near 44.
Saturday Night
Rain and snow, mainly after 1am. Low around 28. Blustery. Chance of precipitation is 80%.
Sunday
Rain and snow likely before 1pm, then a chance of snow. Cloudy, with a high near 34. Windy. Chance of precipitation is 60%.
Sunday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 8. Windy.
Monday
Mostly sunny, with a high near 23. Windy.
Monday Night
Partly cloudy, with a low around 6.
Tuesday
Mostly cloudy, with a high near 30.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sheffield IA
 42.89°N 93.23°W
Last Update:
1:27 am CDT Mar 11, 2026
Forecast Valid:
2am CDT Mar 11, 2026-6pm CDT Mar 17, 2026
 
Forecast Discussion
 
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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