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Severe Thunderstorms and Heavy Rainfall; Typhoon Watch in Guam and CNMI

Heavy to excessive rainfall will continue through tonight from the Texas Big Bend region into southern Oklahoma. Scattered damaging wind gusts and a few tornadoes may accompany a line of severe thunderstorms that is expected across the Mid-Atlantic into New England Friday. A Typhoon Watch continues for Guam and CNMI as Tropical Storm Champi will strengthen and approach the islands this weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Overcast

49°F

9°C

Humidity 75%
Wind Speed NW 18 G 26 mph
Barometer 30.12 in
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 15 Oct 11:35 pm CDT
Extended Forecast for

4 Miles NNE Malcom IA

Freeze Watch October 17, 01:00am until October 17, 09:00am
Click here for hazard details and duration
Freeze Watch

  • Tonight

    Tonight: Mostly clear early, then becoming mostly cloudy, with a low around 43. Breezy, with a west northwest wind 13 to 16 mph, with gusts as high as 29 mph.

    Low: 43 °F

    Mostly Cloudy
    and Breezy

  • Friday

    Friday: A slight chance of showers between 8am and noon. Mostly cloudy, with a high near 51. Windy, with a north northwest wind 16 to 22 mph, with gusts as high as 37 mph. Chance of precipitation is 20%.

    High: 51 °F

    Windy. Slight
    Chance
    Showers then
    Mostly Cloudy

  • Friday Night

    Friday Night: Widespread frost, mainly after 2am. Otherwise, mostly cloudy, then gradually becoming clear, with a low around 29. North northwest wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 20 mph.

    Low: 29 °F

    Decreasing
    Clouds then
    Frost

  • Saturday

    Saturday: Widespread frost before 9am. Otherwise, sunny, with a high near 57. Calm wind becoming south southwest 5 to 8 mph in the afternoon.

    High: 57 °F

    Frost then
    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 37. South wind 6 to 8 mph.

    Low: 37 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear early, then becoming mostly cloudy, with a low around 43. Breezy, with a west northwest wind 13 to 16 mph, with gusts as high as 29 mph.
Friday
A slight chance of showers between 8am and noon. Mostly cloudy, with a high near 51. Windy, with a north northwest wind 16 to 22 mph, with gusts as high as 37 mph. Chance of precipitation is 20%.
Friday Night
Widespread frost, mainly after 2am. Otherwise, mostly cloudy, then gradually becoming clear, with a low around 29. North northwest wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 20 mph.
Saturday
Widespread frost before 9am. Otherwise, sunny, with a high near 57. Calm wind becoming south southwest 5 to 8 mph in the afternoon.
Saturday Night
Clear, with a low around 37. South wind 6 to 8 mph.
Sunday
Sunny, with a high near 65.
Sunday Night
Mostly clear, with a low around 42.
Monday
Mostly sunny, with a high near 67.
Monday Night
Partly cloudy, with a low around 44.
Tuesday
Mostly sunny, with a high near 71.
Tuesday Night
Mostly clear, with a low around 49.
Wednesday
Sunny, with a high near 74.
Wednesday Night
Partly cloudy, with a low around 53.
Thursday
Partly sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNE Malcom IA
 41.77°N 92.54°W
Last Update:
10:43 pm CDT Oct 15, 2026
Forecast Valid:
11pm CDT Oct 15, 2026-6pm CDT Oct 22, 2026
 
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Additional Resources

Radar & Satellite Image

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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