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

Hazardous Weather Conditions

Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Fair

62°F

17°C

Humidity 98%
Wind Speed Calm
Barometer 29.74 in
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 18 May 7:55 am CDT
Extended Forecast for

Tama IA

  • Today

    Today: A 20 percent chance of showers before 9am. Mostly cloudy, with a high near 82. Breezy, with a south southwest wind 10 to 16 mph, with gusts as high as 24 mph.

    High: 82 °F

    Slight Chance
    Showers then
    Mostly Cloudy
    and Breezy

  • Tonight

    Tonight: Showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 4am, then a chance of showers and thunderstorms after 4am. Low around 55. Breezy, with a south wind 13 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 55 °F

    T-storms and
    Breezy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 8am. Mostly cloudy, then gradually becoming sunny, with a high near 65. Breezy, with a northwest wind around 16 mph, with gusts as high as 24 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 65 °F

    Breezy.
    Chance
    Showers then
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 41. North northwest wind 6 to 11 mph becoming light after midnight. Winds could gust as high as 18 mph.

    Low: 41 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 64. North northeast wind 3 to 7 mph.

    High: 64 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 65.

    High: 65 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 45.

    Low: 45 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers before 1pm. Partly sunny, with a high near 71.

    High: 71 °F

    Chance
    Showers

Detailed Forecast

Today
A 20 percent chance of showers before 9am. Mostly cloudy, with a high near 82. Breezy, with a south southwest wind 10 to 16 mph, with gusts as high as 24 mph.
Tonight
Showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 4am, then a chance of showers and thunderstorms after 4am. Low around 55. Breezy, with a south wind 13 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday
A chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 8am. Mostly cloudy, then gradually becoming sunny, with a high near 65. Breezy, with a northwest wind around 16 mph, with gusts as high as 24 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Mostly clear, with a low around 41. North northwest wind 6 to 11 mph becoming light after midnight. Winds could gust as high as 18 mph.
Wednesday
Mostly sunny, with a high near 64. North northeast wind 3 to 7 mph.
Wednesday Night
Mostly cloudy, with a low around 42.
Thursday
Partly sunny, with a high near 65.
Thursday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 45.
Friday
A 30 percent chance of showers before 1pm. Partly sunny, with a high near 71.
Friday Night
Mostly cloudy, with a low around 49.
Saturday
Partly sunny, with a high near 78.
Saturday Night
Partly cloudy, with a low around 53.
Sunday
Mostly sunny, with a high near 84.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Tama IA
 41.97°N 92.57°W
Last Update:
5:32 am CDT May 18, 2026
Forecast Valid:
8am CDT May 18, 2026-6pm CDT May 24, 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