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

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Fair

38°F

3°C

Humidity 74%
Wind Speed Calm
Barometer 29.68 in
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 8 Jan 5:15 am CST
Extended Forecast for

Tama IA

  • Today

    Today: Rain, with thunderstorms also possible after 3pm. Some of the storms could produce heavy rainfall. High near 44. Southeast wind 5 to 10 mph becoming north in the afternoon. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    High: 44 °F

    Chance Rain
    then Heavy
    Rain

  • Tonight

    Tonight: Rain likely before 4am, then a slight chance of rain and snow. Cloudy, with a low around 32. North northwest wind 11 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 32 °F

    Rain Likely
    then Chance
    Rain/Snow

  • Friday

    Friday: Partly sunny, with a high near 40. North wind 6 to 11 mph, with gusts as high as 20 mph.

    High: 40 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 27. North wind around 5 mph becoming calm.

    Low: 27 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Saturday

    Saturday: A 40 percent chance of snow. Partly sunny, with a high near 32. Breezy, with a northwest wind 6 to 16 mph, with gusts as high as 23 mph. Little or no snow accumulation expected.

    High: 32 °F

    Chance Snow
    and Breezy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 15.

    Low: 15 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 28.

    High: 28 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 21.

    Low: 21 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 43.

    High: 43 °F

    Sunny

Detailed Forecast

Today
Rain, with thunderstorms also possible after 3pm. Some of the storms could produce heavy rainfall. High near 44. Southeast wind 5 to 10 mph becoming north in the afternoon. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Tonight
Rain likely before 4am, then a slight chance of rain and snow. Cloudy, with a low around 32. North northwest wind 11 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Friday
Partly sunny, with a high near 40. North wind 6 to 11 mph, with gusts as high as 20 mph.
Friday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 27. North wind around 5 mph becoming calm.
Saturday
A 40 percent chance of snow. Partly sunny, with a high near 32. Breezy, with a northwest wind 6 to 16 mph, with gusts as high as 23 mph. Little or no snow accumulation expected.
Saturday Night
Mostly cloudy, with a low around 15.
Sunday
Mostly sunny, with a high near 28.
Sunday Night
Partly cloudy, with a low around 21.
Monday
Sunny, with a high near 43.
Monday Night
Mostly cloudy, with a low around 31.
Tuesday
Partly sunny, with a high near 43.
Tuesday Night
Mostly cloudy, with a low around 27.
Wednesday
Partly sunny, with a high near 33.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Tama IA
 41.97°N 92.57°W
Last Update:
3:16 am CST Jan 8, 2026
Forecast Valid:
5am CST Jan 8, 2026-6pm CST Jan 14, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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