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

Grissom Air Force Base / Peru (KGUS)

Lat: 40.65°NLon: 86.15°WElev: 810ft.

Fair

33°F

1°C

Humidity 79%
Wind Speed SW 6 mph
Barometer 30.10 in (1020.5 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 12 Jan 5:55 pm EST
Extended Forecast for

Peru IN

  • Tonight

    Tonight: Mostly clear, with a low around 31. Southwest wind 5 to 10 mph.

    Low: 31 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 47. Southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 47 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 34. West wind around 10 mph, with gusts as high as 20 mph.

    Low: 34 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 50 percent chance of snow. Mostly cloudy, with a high near 35. Northwest wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 35 °F

    Chance Snow

  • Wednesday Night

    Wednesday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 17. Northwest wind 10 to 20 mph, with gusts as high as 25 mph.

    Low: 17 °F

    Chance Snow

  • Thursday

    Thursday: A 20 percent chance of snow before 1pm. Partly sunny, with a high near 25.

    High: 25 °F

    Slight Chance
    Snow

  • Thursday Night

    Thursday Night: A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 15.

    Low: 15 °F

    Partly Cloudy
    then Chance
    Snow

  • Friday

    Friday: A 50 percent chance of snow. Mostly cloudy, with a high near 32.

    High: 32 °F

    Chance Snow

  • Friday Night

    Friday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 18.

    Low: 18 °F

    Chance Snow

Detailed Forecast

Tonight
Mostly clear, with a low around 31. Southwest wind 5 to 10 mph.
Tuesday
Partly sunny, with a high near 47. Southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Tuesday Night
Mostly cloudy, with a low around 34. West wind around 10 mph, with gusts as high as 20 mph.
Wednesday
A 50 percent chance of snow. Mostly cloudy, with a high near 35. Northwest wind 10 to 20 mph, with gusts as high as 30 mph.
Wednesday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 17. Northwest wind 10 to 20 mph, with gusts as high as 25 mph.
Thursday
A 20 percent chance of snow before 1pm. Partly sunny, with a high near 25.
Thursday Night
A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 15.
Friday
A 50 percent chance of snow. Mostly cloudy, with a high near 32.
Friday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 18.
Saturday
A 40 percent chance of snow. Mostly cloudy, with a high near 23.
Saturday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 6.
Sunday
Partly sunny and cold, with a high near 17.
Sunday Night
Mostly cloudy, with a low around 6.
M.L.King Day
Partly sunny, with a high near 21.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Peru IN
 40.76°N 86.07°W (Elev. 656 ft)
Last Update:
5:46 pm EST Jan 12, 2026
Forecast Valid:
6pm EST Jan 12, 2026-6pm EST Jan 19, 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