Heat and Fire Weather Concerns West; Heavy Rain and Thunderstorms from Plains to mid-Atlantic

Thunderstorms and locally heavy rainfall is expected from the Central Plains to the Ohio Valley, mid-Atlantic and across the Southeast. Severe weather from the Upper Midwest to Central Plains increases on Friday. Major to Extreme HeatRisk continues across the Southern Plains to the lower Mississippi Valley late this week. Fire weather concerns for the northern Rockies and northern Plains today. Read More >

Hazardous Weather Conditions

Current conditions at

Mason City Municipal Airport (KMCW)

Lat: 43.15°NLon: 93.33°WElev: 1188ft.

Fair

79°F

26°C

Humidity 35%
Wind Speed Calm
Barometer 30.01 in (1015.2 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 10 Sep 3:53 pm CDT
Extended Forecast for

Sheffield IA

  • This Afternoon

    This Afternoon: Sunny, with a high near 80. Calm wind.

    High: 80 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 56. South wind 3 to 7 mph.

    Low: 56 °F

    Clear

  • Friday

    Friday: Increasing clouds, with a high near 81. Breezy, with a south wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 26 mph.

    High: 81 °F

    Sunny then
    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 2am, then a chance of showers and thunderstorms after 4am.  Partly cloudy, with a low around 64. South wind 10 to 15 mph, with gusts as high as 21 mph.  Chance of precipitation is 30%.

    Low: 64 °F

    Partly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 77. West northwest wind 9 to 14 mph becoming north in the afternoon. Winds could gust as high as 21 mph.

    High: 77 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Sunday

    Sunday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm.  Partly sunny, with a high near 70. Chance of precipitation is 60%.

    High: 70 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers, then showers likely and possibly a thunderstorm after 1am.  Mostly cloudy, with a low around 53. Chance of precipitation is 70%.

    Low: 53 °F

    Chance
    Showers then
    Showers
    Likely

  • Monday

    Monday: Showers and possibly a thunderstorm.  High near 77. Breezy.  Chance of precipitation is 80%.

    High: 77 °F

    Showers and
    Breezy

Detailed Forecast

This Afternoon
Sunny, with a high near 80. Calm wind.
Tonight
Clear, with a low around 56. South wind 3 to 7 mph.
Friday
Increasing clouds, with a high near 81. Breezy, with a south wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 26 mph.
Friday Night
A chance of showers and thunderstorms before 2am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 64. South wind 10 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 77. West northwest wind 9 to 14 mph becoming north in the afternoon. Winds could gust as high as 21 mph.
Saturday Night
Mostly clear, with a low around 52.
Sunday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 70. Chance of precipitation is 60%.
Sunday Night
A chance of showers, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 53. Chance of precipitation is 70%.
Monday
Showers and possibly a thunderstorm. High near 77. Breezy. Chance of precipitation is 80%.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 57. Breezy. Chance of precipitation is 70%.
Tuesday
A 40 percent chance of showers. Mostly cloudy, with a high near 68.
Tuesday Night
Mostly cloudy, with a low around 51.
Wednesday
A 40 percent chance of showers. Partly sunny, with a high near 65.
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ABOUT THIS FORECAST

 
Point Forecast:
Sheffield IA
 42.89°N 93.23°W
4:02 pm CDT Sep 10, 2026
4pm CDT Sep 10, 2026-6pm CDT Sep 16, 2026
 
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Additional Resources

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Hourly Weather Forecast

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