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

39°F

4°C

Humidity 90%
Wind Speed NW 5 mph
Barometer 29.73 in (1007.2 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 8 Nov 4:55 am EST
Extended Forecast for

4 Miles E Peru IN

  • Today

    Today: A 10 percent chance of showers after 5pm. Mostly cloudy, with a high near 52. Northeast wind around 5 mph.

    High: 52 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Tonight

    Tonight: Showers, mainly after 7pm. Low around 34. Northeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 34 °F

    Showers

  • Sunday

    Sunday: Snow showers, possibly mixed with rain before 10am, then rain showers between 10am and 4pm, then snow showers after 4pm. High near 41. North wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 41 °F

    Rain/Snow

  • Sunday Night

    Sunday Night: Snow showers. Low around 23. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    Low: 23 °F

    Snow Showers

  • Monday

    Monday: A 50 percent chance of snow showers. Partly sunny, with a high near 35. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 35 °F

    Chance Snow
    Showers

  • Monday Night

    Monday Night: A 30 percent chance of snow showers before 1am. Partly cloudy, with a low around 21.

    Low: 21 °F

    Chance Snow
    Showers

  • Veterans Day

    Veterans Day: Mostly cloudy, with a high near 41.

    High: 41 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

Detailed Forecast

Today
A 10 percent chance of showers after 5pm. Mostly cloudy, with a high near 52. Northeast wind around 5 mph.
Tonight
Showers, mainly after 7pm. Low around 34. Northeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Snow showers, possibly mixed with rain before 10am, then rain showers between 10am and 4pm, then snow showers after 4pm. High near 41. North wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Sunday Night
Snow showers. Low around 23. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Monday
A 50 percent chance of snow showers. Partly sunny, with a high near 35. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
A 30 percent chance of snow showers before 1am. Partly cloudy, with a low around 21.
Veterans Day
Mostly cloudy, with a high near 41.
Tuesday Night
Partly cloudy, with a low around 34.
Wednesday
Sunny, with a high near 51.
Wednesday Night
Mostly clear, with a low around 30.
Thursday
Sunny, with a high near 50.
Thursday Night
Partly cloudy, with a low around 30.
Friday
Mostly sunny, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Peru IN
 40.75°N 85.99°W (Elev. 646 ft)
Last Update:
4:45 am EST Nov 8, 2025
Forecast Valid:
5am EST Nov 8, 2025-6pm EST Nov 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