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Tropical Storm Isaias in the Gulf; California Heat Continues

Tropical Storm Isaias is forecast to track toward the central U.S. Gulf Coast while strengthening into a hurricane on Thursday. Residents from Louisiana to the Florida Panhandle should closely monitor the latest updates. Much higher than typical October temperatures will continue across much of California through midweek. Temperatures are forecast to gradually cool beginning Thursday. Read More >

Current conditions at

Mason City Municipal Airport (KMCW)

Lat: 43.15°NLon: 93.33°WElev: 1188ft.

Fair

51°F

11°C

Humidity 80%
Wind Speed NW 9 mph
Barometer 29.89 in (1011.5 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 7 Oct 5:53 am CDT
Extended Forecast for

Grafton IA

  • Today

    Today: Sunny, with a high near 74. North northwest wind 5 to 10 mph.

    High: 74 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 49. Northwest wind around 6 mph.

    Low: 49 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 68. Light west wind.

    High: 68 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 48. Calm wind becoming south southeast around 5 mph after midnight.

    Low: 48 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 74. South southeast wind 7 to 13 mph, with gusts as high as 20 mph.

    High: 74 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 80. Windy.

    High: 80 °F

    Sunny and
    Windy

  • Saturday Night

    Saturday Night: Clear, with a low around 61. Breezy.

    Low: 61 °F

    Clear and
    Breezy then
    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 74. North northwest wind 5 to 10 mph.
Tonight
Partly cloudy, with a low around 49. Northwest wind around 6 mph.
Thursday
Mostly sunny, with a high near 68. Light west wind.
Thursday Night
Partly cloudy, with a low around 48. Calm wind becoming south southeast around 5 mph after midnight.
Friday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 74. South southeast wind 7 to 13 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 60.
Saturday
Sunny, with a high near 80. Windy.
Saturday Night
Clear, with a low around 61. Breezy.
Sunday
Sunny, with a high near 78.
Sunday Night
Partly cloudy, with a low around 57.
Columbus Day
A 30 percent chance of showers. Partly sunny, with a high near 69.
Monday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 49.
Tuesday
A 40 percent chance of showers. Partly sunny, with a high near 61.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grafton IA
 43.32°N 93.07°W
Last Update:
5:43 am CDT Oct 7, 2026
Forecast Valid:
6am CDT Oct 7, 2026-6pm CDT Oct 13, 2026
 
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