National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Storm System to Move Across the Ohio Valley to the Mid-Atlantic and Northeast

Isolated severe thunderstorms will be possible on Veterans Day across parts of the lower Ohio and western Tennessee Valleys. A developing storm will bring rain and gusty winds to the Mid-Atlantic and Northeast on Thursday, with the first accumulating snow likely in the higher elevations of the central Appalachians and interior Northeast. Read More >

Current conditions at

Mason City Municipal Airport (KMCW)

Lat: 43.15°NLon: 93.33°WElev: 1188ft.

A Few Clouds

32°F

0°C

Humidity 85%
Wind Speed NW 14 mph
Barometer 30.06 in (1018.0 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 12 Nov 3:53 am CST
Extended Forecast for

Grafton IA

  • Overnight

    Overnight: A chance of sprinkles. Mostly cloudy, with a low around 33. North wind around 13 mph, with gusts as high as 22 mph.

    Low: 33 °F

    Chance
    Sprinkles

  • Thursday

    Thursday: A chance of sprinkles before 9am. Partly sunny, with a high near 41. North wind 9 to 14 mph, with gusts as high as 22 mph.

    High: 41 °F

    Chance
    Sprinkles

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 22. North wind 5 to 8 mph.

    Low: 22 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 39. North wind 5 to 8 mph.

    High: 39 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 18. North wind around 5 mph becoming calm in the evening.

    Low: 18 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 42.

    High: 42 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 21.

    Low: 21 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 44.

    High: 44 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

Detailed Forecast

Overnight
A chance of sprinkles. Mostly cloudy, with a low around 33. North wind around 13 mph, with gusts as high as 22 mph.
Thursday
A chance of sprinkles before 9am. Partly sunny, with a high near 41. North wind 9 to 14 mph, with gusts as high as 22 mph.
Thursday Night
Mostly cloudy, with a low around 22. North wind 5 to 8 mph.
Friday
Mostly sunny, with a high near 39. North wind 5 to 8 mph.
Friday Night
Mostly clear, with a low around 18. North wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 42.
Saturday Night
Clear, with a low around 21.
Sunday
Sunny, with a high near 44.
Sunday Night
Mostly clear, with a low around 25.
Monday
Sunny, with a high near 49.
Monday Night
Clear, with a low around 29.
Tuesday
Sunny, with a high near 52.
Tuesday Night
Mostly clear, with a low around 36.
Wednesday
Mostly sunny, with a high near 54.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grafton IA
 43.34°N 93.07°W
Last Update:
12:26 am CST Nov 12, 2026
Forecast Valid:
4am CST Nov 12, 2026-6pm CST Nov 18, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation