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Hazardous Weather Conditions

Current conditions at

Grissom Air Force Base / Peru (KGUS)

Lat: 40.65°NLon: 86.15°WElev: 810ft.

Fair

84°F

29°C

Humidity 74%
Wind Speed SW 15 mph
Barometer 29.98 in (1014.7 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 21 Jun 10:55 am EDT
Extended Forecast for

Peru IN

Extreme Heat Watch June 22, 08:00am until June 24, 08:00pm
Heat Advisory June 21, 12:00pm until June 22, 08:00am
Click here for hazard details and duration
Extreme Heat Watch
Heat Advisory

  • Today

    Today: Sunny and hot, with a high near 91. Heat index values as high as 101. Southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 91 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 76. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 76 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 94. Heat index values as high as 103. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 94 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 77. Southwest wind 5 to 10 mph.

    Low: 77 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 94. Southwest wind 5 to 10 mph.

    High: 94 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly sunny and hot, with a high near 92.

    High: 92 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 73.

    Low: 73 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms after 8am. Mostly sunny and hot, with a high near 90.

    High: 90 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
Sunny and hot, with a high near 91. Heat index values as high as 101. Southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Tonight
Mostly clear, with a low around 76. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday
Sunny and hot, with a high near 94. Heat index values as high as 103. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 77. Southwest wind 5 to 10 mph.
Monday
Sunny and hot, with a high near 94. Southwest wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 74.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly sunny and hot, with a high near 92.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 73.
Wednesday
A 40 percent chance of showers and thunderstorms after 8am. Mostly sunny and hot, with a high near 90.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly before 2am. Partly cloudy, with a low around 73.
Thursday
A 40 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 90.
Thursday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Peru IN
 40.75°N 86.04°W (Elev. 646 ft)
Last Update:
7:01 am EDT Jun 21, 2025
Forecast Valid:
11am EDT Jun 21, 2025-6pm EDT Jun 27, 2025
 
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