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

45°F

7°C

Humidity 93%
Wind Speed NE 5 mph
Barometer 30.13 in (1020.2 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 14 Oct 9:53 pm CDT
Extended Forecast for

4 Miles E Grafton IA

  • Tonight

    Tonight: A 30 percent chance of showers, mainly after 4am. Cloudy, with a steady temperature around 49. East wind around 6 mph.

    Low: 49 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: Showers, mainly after 8am. High near 57. East wind 5 to 11 mph becoming north in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 57 °F

    Showers

  • Thursday Night

    Thursday Night: Showers likely, mainly before 4am. Cloudy, then gradually becoming partly cloudy, with a low around 38. Breezy, with a northwest wind 14 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 38 °F

    Breezy.
    Showers
    Likely then
    Slight Chance
    Showers

  • Friday

    Friday: A 40 percent chance of showers before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 52. Breezy, with a northwest wind 17 to 25 mph, with gusts as high as 39 mph.

    High: 52 °F

    Chance
    Showers and
    Breezy

  • Friday Night

    Friday Night: Widespread frost, mainly after 4am. Otherwise, mostly clear, with a low around 30. North wind 5 to 9 mph becoming calm after midnight.

    Low: 30 °F

    Mostly Clear
    then Frost

  • Saturday

    Saturday: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 58. Light southwest wind increasing to 9 to 14 mph in the morning. Winds could gust as high as 22 mph.

    High: 58 °F

    Frost then
    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 38. South wind 11 to 13 mph, with gusts as high as 21 mph.

    Low: 38 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 65. Breezy, with a south wind 14 to 18 mph, with gusts as high as 28 mph.

    High: 65 °F

    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 43. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 43 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 30 percent chance of showers, mainly after 4am. Cloudy, with a steady temperature around 49. East wind around 6 mph.
Thursday
Showers, mainly after 8am. High near 57. East wind 5 to 11 mph becoming north in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Showers likely, mainly before 4am. Cloudy, then gradually becoming partly cloudy, with a low around 38. Breezy, with a northwest wind 14 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday
A 40 percent chance of showers before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 52. Breezy, with a northwest wind 17 to 25 mph, with gusts as high as 39 mph.
Friday Night
Widespread frost, mainly after 4am. Otherwise, mostly clear, with a low around 30. North wind 5 to 9 mph becoming calm after midnight.
Saturday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 58. Light southwest wind increasing to 9 to 14 mph in the morning. Winds could gust as high as 22 mph.
Saturday Night
Clear, with a low around 38. South wind 11 to 13 mph, with gusts as high as 21 mph.
Sunday
Sunny, with a high near 65. Breezy, with a south wind 14 to 18 mph, with gusts as high as 28 mph.
Sunday Night
Partly cloudy, with a low around 43. South wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 67. South wind 3 to 6 mph.
Monday Night
Mostly clear, with a low around 43. South wind 3 to 5 mph.
Tuesday
Sunny, with a high near 70. South wind 5 to 11 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 49. South wind around 9 mph.
Wednesday
A 20 percent chance of showers. Mostly sunny, with a high near 71. South wind 8 to 14 mph, with gusts as high as 23 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Grafton IA
 43.34°N 92.98°W
Last Update:
6:46 pm CDT Oct 14, 2026
Forecast Valid:
10pm CDT Oct 14, 2026-6pm CDT Oct 21, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation