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.

Partly Cloudy

85°F

29°C

Humidity 60%
Wind Speed Calm
Barometer 30.13 in
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 7 Jul 3:15 pm CDT
Extended Forecast for

3 Miles NW Guernsey IA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 86. Calm wind.

    High: 86 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 65. Light and variable wind.

    Low: 65 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 91. South southwest wind 3 to 7 mph.

    High: 91 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 68. West southwest wind 3 to 5 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 85. Calm wind becoming west southwest around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 4am, then a slight chance of showers. Mostly cloudy, with a low around 65. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 85.

    High: 85 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.

    Low: 64 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 86. Calm wind.
Tonight
Mostly clear, with a low around 65. Light and variable wind.
Wednesday
Sunny, with a high near 91. South southwest wind 3 to 7 mph.
Wednesday Night
A 50 percent chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 68. West southwest wind 3 to 5 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 85. Calm wind becoming west southwest around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms before 4am, then a slight chance of showers. Mostly cloudy, with a low around 65. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 85.
Friday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Saturday
Mostly sunny, with a high near 86.
Saturday Night
Mostly clear, with a low around 64.
Sunday
Sunny, with a high near 89.
Sunday Night
Clear, with a low around 66.
Monday
Sunny, with a high near 92.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Guernsey IA
 41.68°N 92.37°W
Last Update:
1:26 pm CDT Jul 7, 2026
Forecast Valid:
3pm CDT Jul 7, 2026-6pm CDT Jul 13, 2026
 
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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