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

55°F

13°C

Humidity 91%
Wind Speed W 3 mph
Barometer 29.90 in (1012.5 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 19 Jun 5:55 am EDT
Extended Forecast for

3 Miles WSW Peru IN

  • Juneteenth

    Juneteenth: Sunny, with a high near 75. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 75 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 58. Southwest wind around 5 mph.

    Low: 58 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers before 2pm. Mostly sunny, with a high near 77. West wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 77 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 58. West wind around 5 mph becoming calm in the evening.

    Low: 58 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers, then showers and possibly a thunderstorm after 2pm. High near 75. Southeast wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 75 °F

    Chance
    Showers then
    Showers

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 61. Chance of precipitation is 90%. New rainfall amounts between 2 and 3 inches possible.

    Low: 61 °F

    Heavy Rain

  • Monday

    Monday: Showers likely and possibly a thunderstorm before 8am, then a chance of showers between 8am and 2pm, then a slight chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 74. Chance of precipitation is 60%.

    High: 74 °F

    Showers
    Likely then
    Chance
    Showers

  • Monday Night

    Monday Night: A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 54.

    Low: 54 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

Detailed Forecast

Juneteenth
Sunny, with a high near 75. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Tonight
Partly cloudy, with a low around 58. Southwest wind around 5 mph.
Saturday
A 20 percent chance of showers before 2pm. Mostly sunny, with a high near 77. West wind 5 to 15 mph, with gusts as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 58. West wind around 5 mph becoming calm in the evening.
Sunday
A chance of showers, then showers and possibly a thunderstorm after 2pm. High near 75. Southeast wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday Night
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 61. Chance of precipitation is 90%. New rainfall amounts between 2 and 3 inches possible.
Monday
Showers likely and possibly a thunderstorm before 8am, then a chance of showers between 8am and 2pm, then a slight chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 74. Chance of precipitation is 60%.
Monday Night
A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 54.
Tuesday
Mostly sunny, with a high near 75.
Tuesday Night
Partly cloudy, with a low around 57.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 76.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 58.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Peru IN
 40.73°N 86.1°W (Elev. 650 ft)
Last Update:
3:47 am EDT Jun 19, 2026
Forecast Valid:
6am EDT Jun 19, 2026-6pm EDT Jun 25, 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