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.

Fair

-1°F

-18°C

Humidity 79%
Wind Speed Calm
Barometer 30.32 in (1029.2 mb)
Dewpoint -7°F (-22°C)
Visibility 10.00 mi
Last update 1 Feb 2:55 am EST
Extended Forecast for

Peru IN

Cold Weather Advisory until February 1, 09:00am
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory until February 1, 09:00am

    NOW until 9:00am Sun

    Cold Weather Advisory

  • Overnight

    Low: -7 °F

    Patchy
    Freezing Fog

  • Sunday

    Sunday: Patchy freezing fog before 11am. Mostly sunny, with a high near 23. Wind chill values as low as -15. Southwest wind around 5 mph.

    High: 23 °F

    Patchy
    Freezing Fog
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: A 40 percent chance of snow, mainly after 4am. Mostly cloudy, with a low around 12. South wind 5 to 10 mph.

    Low: 12 °F

    Mostly Cloudy
    then Chance
    Snow

  • Monday

    Monday: A 30 percent chance of snow before 1pm. Mostly cloudy, with a high near 28. Southwest wind around 10 mph.

    High: 28 °F

    Chance Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 15. West wind around 5 mph becoming calm after midnight.

    Low: 15 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 27.

    High: 27 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 8.

    Low: 8 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 21.

    High: 21 °F

    Partly Sunny

Detailed Forecast

Overnight
Patchy freezing fog. Partly cloudy, with a low around -7. Wind chill values as low as -15. West wind around 5 mph.
Sunday
Patchy freezing fog before 11am. Mostly sunny, with a high near 23. Wind chill values as low as -15. Southwest wind around 5 mph.
Sunday Night
A 40 percent chance of snow, mainly after 4am. Mostly cloudy, with a low around 12. South wind 5 to 10 mph.
Monday
A 30 percent chance of snow before 1pm. Mostly cloudy, with a high near 28. Southwest wind around 10 mph.
Monday Night
Mostly cloudy, with a low around 15. West wind around 5 mph becoming calm after midnight.
Tuesday
Mostly cloudy, with a high near 27.
Tuesday Night
Mostly cloudy, with a low around 8.
Wednesday
Partly sunny, with a high near 21.
Wednesday Night
Partly cloudy, with a low around 5.
Thursday
Partly sunny, with a high near 27.
Thursday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 20.
Friday
A 40 percent chance of snow. Mostly cloudy, with a high near 33.
Friday Night
Mostly cloudy, with a low around 8.
Saturday
Partly sunny and cold, with a high near 17.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Peru IN
 40.73°N 86.05°W (Elev. 751 ft)
Last Update:
2:32 am EST Feb 1, 2026
Forecast Valid:
4am EST Feb 1, 2026-6pm EST Feb 7, 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