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.

Fog/Mist

66°F

19°C

Humidity 96%
Wind Speed E 5 mph
Barometer 29.97 in
Dewpoint 65°F (18°C)
Visibility 2.00 mi
Last update 29 Jul 6:15 am CDT
Extended Forecast for

Tama IA

  • Today

    Today: Mostly sunny, with a high near 87. Southeast wind 3 to 7 mph.

    High: 87 °F

    Mostly Sunny

  • Tonight

    Tonight: Patchy smoke before 3am. Partly cloudy, with a low around 65. Southeast wind 3 to 6 mph.

    Low: 65 °F

    Patchy Smoke

  • Thursday

    Thursday: Mostly sunny, with a high near 85. South southeast wind 3 to 8 mph.

    High: 85 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers before 10pm, then a slight chance of showers and thunderstorms between 10pm and 1am, then showers and possibly a thunderstorm after 1am. Low around 65. South southeast wind 8 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 65 °F

    Slight Chance
    T-storms then
    Showers

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 78. South southeast wind around 11 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 78 °F

    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Breezy. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    Breezy.
    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 80. Breezy.

    High: 80 °F

    Slight Chance
    Showers and
    Breezy

  • Saturday Night

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

    Low: 60 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 87. Southeast wind 3 to 7 mph.
Tonight
Patchy smoke before 3am. Partly cloudy, with a low around 65. Southeast wind 3 to 6 mph.
Thursday
Mostly sunny, with a high near 85. South southeast wind 3 to 8 mph.
Thursday Night
A slight chance of showers before 10pm, then a slight chance of showers and thunderstorms between 10pm and 1am, then showers and possibly a thunderstorm after 1am. Low around 65. South southeast wind 8 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
Showers and possibly a thunderstorm. High near 78. South southeast wind around 11 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Breezy. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 80. Breezy.
Saturday Night
Mostly clear, with a low around 60.
Sunday
Sunny, with a high near 83.
Sunday Night
Mostly clear, with a low around 61.
Monday
Sunny, with a high near 84.
Monday Night
Mostly clear, with a low around 63.
Tuesday
Mostly sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Tama IA
 41.97°N 92.57°W
Last Update:
6:01 am CDT Jul 29, 2026
Forecast Valid:
6am CDT Jul 29, 2026-6pm CDT Aug 4, 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