Current conditions at

Grissom Air Force Base / Peru (KGUS)

Lat: 40.65°NLon: 86.15°WElev: 810ft.

Overcast

76°F

24°C

Humidity 66%
Wind Speed SW 6 mph
Barometer 29.98 in (1015.2 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 25 Jul 4:55 pm EDT
Extended Forecast for

5 Miles SE Peru IN

  • Tonight

    Tonight: Mostly cloudy, with a low around 66. Southwest wind around 5 mph becoming calm  in the evening.

    Low: 66 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 87. Calm wind becoming west around 5 mph in the afternoon.

    High: 87 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 70. Southwest wind around 5 mph.

    Low: 70 °F

    Partly Cloudy
    then Chance
    T-storms

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 2pm.  Partly sunny and hot, with a high near 90. Heat index values as high as 103. Southwest wind 5 to 15 mph.  Chance of precipitation is 40%.

    High: 90 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before 2am, then a slight chance of showers and thunderstorms after 2am.  Partly cloudy, with a low around 70. Southwest wind around 10 mph.  Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 70 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A 10 percent chance of showers and thunderstorms before 8am.  Mostly sunny, with a high near 83.

    High: 83 °F

    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 66. Southwest wind around 5 mph becoming calm in the evening.
Sunday
Partly sunny, with a high near 87. Calm wind becoming west around 5 mph in the afternoon.
Sunday Night
A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 70. Southwest wind around 5 mph.
Monday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny and hot, with a high near 90. Heat index values as high as 103. Southwest wind 5 to 15 mph. Chance of precipitation is 40%.
Monday Night
Showers likely and possibly a thunderstorm before 2am, then a slight chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 70. Southwest wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
A 10 percent chance of showers and thunderstorms before 8am. Mostly sunny, with a high near 83.
Tuesday Night
Mostly clear, with a low around 62.
Wednesday
Sunny, with a high near 81.
Wednesday Night
Mostly clear, with a low around 60.
Thursday
Sunny, with a high near 82.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 62.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 83.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 65.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SE Peru IN
 40.71°N 85.99°W (Elev. 794 ft)
4:00 pm EDT Jul 25, 2026
6pm EDT Jul 25, 2026-6pm EDT Aug 1, 2026
 
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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