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.

Overcast

47°F

8°C

Humidity 74%
Wind Speed NE 5 mph
Barometer 30.27 in (1024.7 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 14 Oct 12:53 am CDT
Extended Forecast for

Sheffield IA

  • Overnight

    Overnight: Mostly cloudy, with a steady temperature around 48. Northeast wind around 6 mph.

    Low: 48 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of showers, mainly after 2pm. Mostly cloudy, with a high near 58. East wind 7 to 9 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 58 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Showers likely, with thunderstorms also possible after 4am. Cloudy, with a low around 48. East wind 6 to 8 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 48 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm. Mostly cloudy, with a high near 66. East southeast wind 6 to 8 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 66 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 53. East southeast wind around 8 mph. Chance of precipitation is 30%.

    Low: 53 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Mostly sunny, with a high near 76. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 76 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 58.

    Low: 58 °F

    Mostly Cloudy

  • Friday

    Friday: A 40 percent chance of showers, mainly after 1pm. Partly sunny, with a high near 74.

    High: 74 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 40 percent chance of showers before 1am. Partly cloudy, with a low around 48.

    Low: 48 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 48. Northeast wind around 6 mph.
Tuesday
A 40 percent chance of showers, mainly after 2pm. Mostly cloudy, with a high near 58. East wind 7 to 9 mph. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Showers likely, with thunderstorms also possible after 4am. Cloudy, with a low around 48. East wind 6 to 8 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm. Mostly cloudy, with a high near 66. East southeast wind 6 to 8 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 53. East southeast wind around 8 mph. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Mostly sunny, with a high near 76. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Mostly cloudy, with a low around 58.
Friday
A 40 percent chance of showers, mainly after 1pm. Partly sunny, with a high near 74.
Friday Night
A 40 percent chance of showers before 1am. Partly cloudy, with a low around 48.
Saturday
Mostly sunny, with a high near 68.
Saturday Night
Partly cloudy, with a low around 41.
Sunday
Sunny, with a high near 61.
Sunday Night
Mostly clear, with a low around 40.
Monday
Sunny, with a high near 69.
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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:
12:32 am CDT Oct 14, 2025
Forecast Valid:
1am CDT Oct 14, 2025-6pm CDT Oct 20, 2025
 
Forecast Discussion
 
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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