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.

Fair

23°F

-5°C

Humidity 85%
Wind Speed NW 15 mph
Barometer 29.66 in (1005.2 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill10°F (-12°C)
Last update 25 Feb 12:53 am CST
Extended Forecast for

4 Miles NW Grafton IA

  • Overnight

    Overnight: Partly cloudy, with a low around 15. Wind chill values as low as 5. Northwest wind around 13 mph, with gusts as high as 20 mph.

    Low: 15 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 26. Wind chill values as low as zero. Northwest wind 5 to 13 mph, with gusts as high as 20 mph.

    High: 26 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 18. Calm wind becoming south southwest 5 to 7 mph after midnight.

    Low: 18 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 42. Southwest wind 7 to 13 mph.

    High: 42 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 28. Southwest wind 6 to 10 mph.

    Low: 28 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 56. Breezy.

    High: 56 °F

    Sunny then
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 20.

    Low: 20 °F

    Partly Cloudy

  • Saturday

    Saturday: A 40 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 27.

    High: 27 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 10.

    Low: 10 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 15. Wind chill values as low as 5. Northwest wind around 13 mph, with gusts as high as 20 mph.
Wednesday
Mostly sunny, with a high near 26. Wind chill values as low as zero. Northwest wind 5 to 13 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly cloudy, with a low around 18. Calm wind becoming south southwest 5 to 7 mph after midnight.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 42. Southwest wind 7 to 13 mph.
Thursday Night
Mostly clear, with a low around 28. Southwest wind 6 to 10 mph.
Friday
Sunny, with a high near 56. Breezy.
Friday Night
Partly cloudy, with a low around 20.
Saturday
A 40 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 27.
Saturday Night
Partly cloudy, with a low around 10.
Sunday
A 30 percent chance of snow after noon. Partly sunny, with a high near 24.
Sunday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 13.
Monday
Partly sunny, with a high near 32.
Monday Night
Mostly cloudy, with a low around 19.
Tuesday
Partly sunny, with a high near 37.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW Grafton IA
 43.36°N 93.13°W
Last Update:
12:31 am CST Feb 25, 2026
Forecast Valid:
1am CST Feb 25, 2026-6pm CST Mar 3, 2026
 
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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