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.

Overcast

43°F

6°C

Humidity 91%
Wind Speed NE 8 mph
Barometer 29.91 in (1013.6 mb)
Dewpoint 40°F (4°C)
Visibility 9.00 mi
Wind Chill38°F (3°C)
Last update 18 Nov 3:55 pm EST
Extended Forecast for

Peru IN

  • This Afternoon

    This Afternoon: A 40 percent chance of showers. Cloudy, with a high near 46. East wind around 10 mph.

    High: 46 °F

    Chance
    Showers

  • Tonight

    Tonight: A 30 percent chance of showers, mainly before 7pm. Cloudy, with a low around 36. Northeast wind 5 to 10 mph.

    Low: 36 °F

    Chance
    Showers then
    Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 48. East wind 5 to 10 mph.

    High: 48 °F

    Mostly Cloudy

  • Wednesday Night

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

    Low: 40 °F

    Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 55. Light south wind increasing to 5 to 10 mph in the afternoon.

    High: 55 °F

    Cloudy then
    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers. Cloudy, with a low around 46.

    Low: 46 °F

    Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 55.

    High: 55 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 36.

    Low: 36 °F

    Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 52.

    High: 52 °F

    Slight Chance
    Showers

Detailed Forecast

This Afternoon
A 40 percent chance of showers. Cloudy, with a high near 46. East wind around 10 mph.
Tonight
A 30 percent chance of showers, mainly before 7pm. Cloudy, with a low around 36. Northeast wind 5 to 10 mph.
Wednesday
Mostly cloudy, with a high near 48. East wind 5 to 10 mph.
Wednesday Night
Cloudy, with a low around 40. Calm wind.
Thursday
A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 55. Light south wind increasing to 5 to 10 mph in the afternoon.
Thursday Night
A 30 percent chance of showers. Cloudy, with a low around 46.
Friday
A 30 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 55.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 36.
Saturday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 52.
Saturday Night
Mostly clear, with a low around 33.
Sunday
Sunny, with a high near 55.
Sunday Night
Partly cloudy, with a low around 37.
Monday
Mostly sunny, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Peru IN
 40.78°N 86.04°W (Elev. 696 ft)
Last Update:
2:45 pm EST Nov 18, 2025
Forecast Valid:
4pm EST Nov 18, 2025-6pm EST Nov 24, 2025
 
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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