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.

Overcast

33°F

1°C

Humidity 77%
Wind Speed NE 10 mph
Barometer 30.12 in (1021.1 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 7 Dec 4:55 pm EST
Extended Forecast for

Peru IN

  • Tonight

    Tonight: Partly cloudy, with a low around 7. Northeast wind 5 to 10 mph.

    Low: 7 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 24. Northeast wind around 5 mph becoming southeast in the afternoon.

    High: 24 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a temperature falling to near 13 by 8pm, then rising to around 24 during the remainder of the night. Light southeast wind becoming south 5 to 10 mph in the evening. Winds could gust as high as 20 mph.

    Low: 13 °F⇑

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 38. Southwest wind around 15 mph, with gusts as high as 25 mph.

    High: 38 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Rain likely, mainly after 1am. Cloudy, with a low around 34. Southwest wind 10 to 15 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 60%.

    Low: 34 °F

    Slight Chance
    Rain then
    Rain Likely

  • Wednesday

    Wednesday: Rain likely before 1pm, then a chance of rain and snow. Mostly cloudy, with a high near 39. Breezy. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 39 °F

    Rain Likely
    and Breezy
    then
    Rain/Snow
    Likely

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 21.

    Low: 21 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 40 percent chance of snow. Mostly cloudy, with a high near 28.

    High: 28 °F

    Chance Snow

  • Thursday Night

    Thursday Night: A 30 percent chance of snow, mainly before 1am. Mostly cloudy, with a low around 13.

    Low: 13 °F

    Chance Snow

Detailed Forecast

Tonight
Partly cloudy, with a low around 7. Northeast wind 5 to 10 mph.
Monday
Mostly sunny, with a high near 24. Northeast wind around 5 mph becoming southeast in the afternoon.
Monday Night
Mostly cloudy, with a temperature falling to near 13 by 8pm, then rising to around 24 during the remainder of the night. Light southeast wind becoming south 5 to 10 mph in the evening. Winds could gust as high as 20 mph.
Tuesday
Mostly cloudy, with a high near 38. Southwest wind around 15 mph, with gusts as high as 25 mph.
Tuesday Night
Rain likely, mainly after 1am. Cloudy, with a low around 34. Southwest wind 10 to 15 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 60%.
Wednesday
Rain likely before 1pm, then a chance of rain and snow. Mostly cloudy, with a high near 39. Breezy. Chance of precipitation is 60%. Little or no snow accumulation expected.
Wednesday Night
Mostly cloudy, with a low around 21.
Thursday
A 40 percent chance of snow. Mostly cloudy, with a high near 28.
Thursday Night
A 30 percent chance of snow, mainly before 1am. Mostly cloudy, with a low around 13.
Friday
A 30 percent chance of snow, mainly after 1pm. Partly sunny, with a high near 22.
Friday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 2.
Saturday
A 20 percent chance of snow. Partly sunny and cold, with a high near 12.
Saturday Night
Mostly cloudy, with a low around 0.
Sunday
Partly sunny and cold, with a high near 15.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Peru IN
 40.76°N 86.07°W (Elev. 656 ft)
Last Update:
4:15 pm EST Dec 7, 2025
Forecast Valid:
5pm EST Dec 7, 2025-6pm EST Dec 14, 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