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

71°F

22°C

Humidity 46%
Wind Speed S 14 mph
Barometer 29.87 in (1011.5 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 7 Oct 10:55 am EDT
Extended Forecast for

2 Miles ENE Onward IN

  • Today

    Today: Sunny, with a high near 80. West wind around 15 mph, with gusts as high as 20 mph.

    High: 80 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 50. Northwest wind around 5 mph becoming calm in the evening.

    Low: 50 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 73. Northwest wind 5 to 10 mph.

    High: 73 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 46. North wind around 5 mph becoming calm in the evening.

    Low: 46 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 74. Calm wind becoming south around 5 mph in the afternoon.

    High: 74 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of showers after 2am. Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 72.

    High: 72 °F

    Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 80. West wind around 15 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 50. Northwest wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 73. Northwest wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 46. North wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 74. Calm wind becoming south around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 56.
Saturday
Sunny, with a high near 83.
Saturday Night
A 40 percent chance of showers after 2am. Partly cloudy, with a low around 60.
Sunday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 72.
Sunday Night
A 20 percent chance of showers before 2am. Mostly cloudy, with a low around 55.
Columbus Day
Mostly sunny, with a high near 77.
Monday Night
A 20 percent chance of showers. Partly cloudy, with a low around 56.
Tuesday
A chance of showers. Mostly sunny, with a high near 71.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Onward IN
 40.72°N 86.16°W (Elev. 738 ft)
Last Update:
8:30 am EDT Oct 7, 2026
Forecast Valid:
11am EDT Oct 7, 2026-6pm EDT Oct 13, 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