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

26°F

-3°C

Humidity 89%
Wind Speed Calm
Barometer 30.00 in (1017.1 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Last update 6 Dec 9:55 pm EST
Extended Forecast for

Grissom Air Force Base / Peru IN

  • Tonight

    Tonight: Snow likely, mainly after 4am. Cloudy, with a temperature rising to around 28 by 5am. Calm wind becoming southeast around 5 mph after midnight. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 22 °F⇑

    Cloudy then
    Snow Likely

  • Sunday

    Sunday: Snow likely, mainly before 1pm. Cloudy, with a high near 35. Southeast wind 5 to 10 mph becoming northwest in the afternoon. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 35 °F

    Snow Likely

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 6. North wind 5 to 10 mph.

    Low: 6 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 21. Northeast wind around 5 mph becoming southeast in the afternoon.

    High: 21 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 11. South wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 11 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 37.

    High: 37 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Rain likely, mainly after 1am. Cloudy, with a low around 34. Chance of precipitation is 60%.

    Low: 34 °F

    Chance Rain
    then Rain
    Likely

  • Wednesday

    Wednesday: A chance of rain before 1pm, then a slight chance of rain and snow. Mostly cloudy, with a high near 38. Chance of precipitation is 50%.

    High: 38 °F

    Chance Rain
    then Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: A 30 percent chance of snow, mainly after 1am. Mostly cloudy, with a low around 20.

    Low: 20 °F

    Chance Snow

Detailed Forecast

Tonight
Snow likely, mainly after 4am. Cloudy, with a temperature rising to around 28 by 5am. Calm wind becoming southeast around 5 mph after midnight. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.
Sunday
Snow likely, mainly before 1pm. Cloudy, with a high near 35. Southeast wind 5 to 10 mph becoming northwest in the afternoon. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Sunday Night
Partly cloudy, with a low around 6. North wind 5 to 10 mph.
Monday
Mostly sunny, with a high near 21. Northeast wind around 5 mph becoming southeast in the afternoon.
Monday Night
Mostly cloudy, with a low around 11. South wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday
Partly sunny, with a high near 37.
Tuesday Night
Rain likely, mainly after 1am. Cloudy, with a low around 34. Chance of precipitation is 60%.
Wednesday
A chance of rain before 1pm, then a slight chance of rain and snow. Mostly cloudy, with a high near 38. Chance of precipitation is 50%.
Wednesday Night
A 30 percent chance of snow, mainly after 1am. Mostly cloudy, with a low around 20.
Thursday
A 30 percent chance of snow. Mostly cloudy, with a high near 29.
Thursday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 15.
Friday
A 20 percent chance of snow. Mostly cloudy, with a high near 22.
Friday Night
Mostly cloudy, with a low around 3.
Saturday
Partly sunny and cold, with a high near 15.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grissom Air Force Base / Peru IN
 40.65°N 86.14°W (Elev. 804 ft)
Last Update:
9:31 pm EST Dec 6, 2025
Forecast Valid:
10pm EST Dec 6, 2025-6pm EST Dec 13, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation