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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Grissom Air Force Base / Peru IN

  • Today

    Today: Isolated showers and thunderstorms after 2pm. Partly sunny, with a high near 79. West wind around 10 mph. Chance of precipitation is 20%.

    High: 79 °F

    Partly Sunny
    then Isolated
    T-storms

  • Tonight

    Tonight: Isolated showers and thunderstorms before 7pm, then a slight chance of rain after 5am. Mostly cloudy, with a low around 60. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 10%.

    Low: 60 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Friday

    Friday: Rain likely, with thunderstorms also possible after 3pm. Mostly cloudy, with a high near 74. East wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 74 °F

    Rain Likely

  • Friday Night

    Friday Night: Rain likely and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 63. East wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between three quarters and one inch possible.

    Low: 63 °F

    Showers
    Likely

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 80. East wind around 5 mph. Chance of precipitation is 30%.

    High: 80 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 64. Chance of precipitation is 20%.

    Low: 64 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: A 10 percent chance of showers and thunderstorms before 8am. Partly sunny, with a high near 86.

    High: 86 °F

    Slight Chance
    T-storms then
    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 72.

    Low: 72 °F

    Partly Cloudy

  • Monday

    Monday: Sunny and hot, with a high near 91.

    High: 91 °F

    Hot

Detailed Forecast

Today
Isolated showers and thunderstorms after 2pm. Partly sunny, with a high near 79. West wind around 10 mph. Chance of precipitation is 20%.
Tonight
Isolated showers and thunderstorms before 7pm, then a slight chance of rain after 5am. Mostly cloudy, with a low around 60. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 10%.
Friday
Rain likely, with thunderstorms also possible after 3pm. Mostly cloudy, with a high near 74. East wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
Rain likely and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 63. East wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between three quarters and one inch possible.
Saturday
A chance of showers, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 80. East wind around 5 mph. Chance of precipitation is 30%.
Saturday Night
A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 64. Chance of precipitation is 20%.
Sunday
A 10 percent chance of showers and thunderstorms before 8am. Partly sunny, with a high near 86.
Sunday Night
Partly cloudy, with a low around 72.
Monday
Sunny and hot, with a high near 91.
Monday Night
Mostly clear, with a low around 74.
Tuesday
Sunny and hot, with a high near 93.
Tuesday Night
Mostly clear, with a low around 75.
Wednesday
Sunny and hot, with a high near 93.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grissom Air Force Base / Peru IN
 40.65°N 86.14°W (Elev. 804 ft)
Last Update:
5:02 am EDT Jun 25, 2026
Forecast Valid:
6am EDT Jun 25, 2026-6pm EDT Jul 1, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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