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

66°F

19°C

Humidity 94%
Wind Speed NE 3 mph
Barometer 29.93 in (1013.3 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 24 Sep 5:55 am EDT
Extended Forecast for

Peru IN

  • Today

    Today: A chance of showers, with thunderstorms also possible after 2pm. Patchy fog before 9am. Otherwise, cloudy, with a high near 75. North wind around 5 mph. Chance of precipitation is 40%.

    High: 75 °F

    Chance
    Showers and
    Patchy Fog

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers between 7pm and 10pm. Mostly cloudy, with a low around 57. North wind 5 to 10 mph. Chance of precipitation is 20%.

    Low: 57 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers. Partly sunny, with a high near 74. Northwest wind 5 to 10 mph.

    High: 74 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 51. Northwest wind around 5 mph becoming calm in the evening.

    Low: 51 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 78. Calm wind becoming west around 5 mph in the afternoon.

    High: 78 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

Detailed Forecast

Today
A chance of showers, with thunderstorms also possible after 2pm. Patchy fog before 9am. Otherwise, cloudy, with a high near 75. North wind around 5 mph. Chance of precipitation is 40%.
Tonight
A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers between 7pm and 10pm. Mostly cloudy, with a low around 57. North wind 5 to 10 mph. Chance of precipitation is 20%.
Thursday
A 20 percent chance of showers. Partly sunny, with a high near 74. Northwest wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 51. Northwest wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 78. Calm wind becoming west around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 53.
Saturday
Sunny, with a high near 81.
Saturday Night
Mostly clear, with a low around 53.
Sunday
Sunny, with a high near 82.
Sunday Night
Mostly clear, with a low around 55.
Monday
Sunny, with a high near 83.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
Mostly sunny, with a high near 82.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Peru IN
 40.76°N 86.07°W (Elev. 656 ft)
Last Update:
6:01 am EDT Sep 24, 2025
Forecast Valid:
6am EDT Sep 24, 2025-6pm EDT Sep 30, 2025
 
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