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

Hazardous Weather Conditions

Current conditions at

Grissom Air Force Base / Peru (KGUS)

Lat: 40.65°NLon: 86.15°WElev: 810ft.

Mostly Cloudy

6°F

-14°C

Humidity 83%
Wind Speed SE 3 mph
Barometer 30.09 in (1020.6 mb)
Dewpoint 2°F (-17°C)
Visibility 10.00 mi
Last update 5 Dec 3:55 am EST
Extended Forecast for

Grissom Air Force Base / Peru IN

  • Today

    Today: Patchy freezing fog before 10am. Mostly sunny, with a high near 28. Wind chill values as low as -5. Southwest wind 5 to 10 mph.

    High: 28 °F

    Patchy
    Freezing Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a temperature rising to around 27 by 4am. Southwest wind around 10 mph.

    Low: 21 °F⇑

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 32. West wind 5 to 10 mph.

    High: 32 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 30 percent chance of snow after 1am. Cloudy, with a low around 22. Calm wind.

    Low: 22 °F

    Cloudy then
    Chance Snow

  • Sunday

    Sunday: Snow likely, mainly before 1pm. Mostly cloudy, with a high near 31. Southeast wind 5 to 10 mph becoming northwest in the afternoon. Chance of precipitation is 60%. New snow accumulation of around an inch possible.

    High: 31 °F

    Snow Likely

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 5.

    Low: 5 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny and cold, with a high near 19.

    High: 19 °F

    Cold

  • Monday Night

    Monday Night: A 20 percent chance of snow after 1am. Mostly cloudy, with a low around 11.

    Low: 11 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Tuesday

    Tuesday: A 20 percent chance of snow before 1pm. Mostly cloudy, with a high near 35.

    High: 35 °F

    Slight Chance
    Snow

Detailed Forecast

Today
Patchy freezing fog before 10am. Mostly sunny, with a high near 28. Wind chill values as low as -5. Southwest wind 5 to 10 mph.
Tonight
Mostly cloudy, with a temperature rising to around 27 by 4am. Southwest wind around 10 mph.
Saturday
Mostly cloudy, with a high near 32. West wind 5 to 10 mph.
Saturday Night
A 30 percent chance of snow after 1am. Cloudy, with a low around 22. Calm wind.
Sunday
Snow likely, mainly before 1pm. Mostly cloudy, with a high near 31. Southeast wind 5 to 10 mph becoming northwest in the afternoon. Chance of precipitation is 60%. New snow accumulation of around an inch possible.
Sunday Night
Mostly cloudy, with a low around 5.
Monday
Mostly sunny and cold, with a high near 19.
Monday Night
A 20 percent chance of snow after 1am. Mostly cloudy, with a low around 11.
Tuesday
A 20 percent chance of snow before 1pm. Mostly cloudy, with a high near 35.
Tuesday Night
A slight chance of rain and snow before 1am, then a chance of rain. Cloudy, with a low around 28. Chance of precipitation is 40%.
Wednesday
Rain likely. Cloudy, with a high near 37. Chance of precipitation is 60%.
Wednesday Night
A chance of snow and freezing rain. Mostly cloudy, with a low around 18. Chance of precipitation is 30%.
Thursday
A slight chance of snow. Mostly cloudy, with a high near 25.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grissom Air Force Base / Peru IN
 40.65°N 86.14°W (Elev. 804 ft)
Last Update:
4:15 am EST Dec 5, 2025
Forecast Valid:
4am EST Dec 5, 2025-6pm EST Dec 11, 2025
 
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