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.

Fog/Mist

41°F

5°C

Humidity 92%
Wind Speed NE 8 mph
Barometer 30.07 in (1019.0 mb)
Dewpoint 38°F (3°C)
Visibility 5.00 mi
Wind Chill36°F (2°C)
Last update 19 Nov 2:55 am EST
Extended Forecast for

Peru IN

  • Overnight

    Overnight: Cloudy, with a low around 39. Northeast wind around 5 mph.

    Low: 39 °F

    Cloudy

  • Wednesday

    Wednesday: Cloudy, with a high near 46. East wind around 5 mph.

    High: 46 °F

    Cloudy

  • Wednesday Night

    Wednesday Night: Cloudy, with a low around 40. Calm wind.

    Low: 40 °F

    Cloudy

  • Thursday

    Thursday: Cloudy, with a high near 54. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 54 °F

    Cloudy

  • Thursday Night

    Thursday Night: A 30 percent chance of showers. Cloudy, with a low around 47. South wind around 5 mph becoming calm in the evening.

    Low: 47 °F

    Chance
    Showers

  • Friday

    Friday: A 40 percent chance of showers. Cloudy, with a high near 56.

    High: 56 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 39.

    Low: 39 °F

    Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 53.

    High: 53 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

Detailed Forecast

Overnight
Cloudy, with a low around 39. Northeast wind around 5 mph.
Wednesday
Cloudy, with a high near 46. East wind around 5 mph.
Wednesday Night
Cloudy, with a low around 40. Calm wind.
Thursday
Cloudy, with a high near 54. Calm wind becoming southwest around 5 mph in the afternoon.
Thursday Night
A 30 percent chance of showers. Cloudy, with a low around 47. South wind around 5 mph becoming calm in the evening.
Friday
A 40 percent chance of showers. Cloudy, with a high near 56.
Friday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 39.
Saturday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 53.
Saturday Night
Partly cloudy, with a low around 37.
Sunday
Mostly sunny, with a high near 57.
Sunday Night
Partly cloudy, with a low around 38.
Monday
Mostly sunny, with a high near 55.
Monday Night
A slight chance of showers. Mostly cloudy, with a low around 36.
Tuesday
A chance of showers. Partly sunny, with a high near 53.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Peru IN
 40.76°N 86.07°W (Elev. 656 ft)
Last Update:
3:00 am EST Nov 19, 2025
Forecast Valid:
3am EST Nov 19, 2025-6pm EST Nov 25, 2025
 
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