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

26°F

-3°C

Humidity 75%
Wind Speed SE 3 mph
Barometer 30.39 in (1030.3 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Last update 24 Mar 7:55 am EDT
Extended Forecast for

2 Miles SW Peru IN

  • Today

    Today: Mostly sunny, with a high near 53. Calm wind becoming south around 5 mph in the morning.

    High: 53 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 37. Southeast wind around 5 mph.

    Low: 37 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 67. Southwest wind 5 to 10 mph.

    High: 67 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 55. Southwest wind around 10 mph.

    Low: 55 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 5pm. Mostly sunny, with a high near 79. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    High: 79 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 8pm, then showers and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Low around 37. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 37 °F

    T-storms then
    Showers

  • Friday

    Friday: A 30 percent chance of showers before 8am. Partly sunny, with a high near 45.

    High: 45 °F

    Chance
    Showers then
    Partly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 26.

    Low: 26 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 53. Calm wind becoming south around 5 mph in the morning.
Tonight
Mostly cloudy, with a low around 37. Southeast wind around 5 mph.
Wednesday
Partly sunny, with a high near 67. Southwest wind 5 to 10 mph.
Wednesday Night
A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 55. Southwest wind around 10 mph.
Thursday
A chance of showers, with thunderstorms also possible after 5pm. Mostly sunny, with a high near 79. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Thursday Night
A chance of showers and thunderstorms before 8pm, then showers and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Low around 37. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
A 30 percent chance of showers before 8am. Partly sunny, with a high near 45.
Friday Night
Mostly clear, with a low around 26.
Saturday
Sunny, with a high near 51.
Saturday Night
Mostly clear, with a low around 34.
Sunday
Mostly sunny, with a high near 60.
Sunday Night
Mostly cloudy, with a low around 43.
Monday
Mostly sunny, with a high near 68.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Peru IN
 40.73°N 86.1°W (Elev. 650 ft)
Last Update:
7:00 am EDT Mar 24, 2026
Forecast Valid:
8am EDT Mar 24, 2026-6pm EDT Mar 30, 2026
 
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