Current conditions at

Grissom Air Force Base / Peru (KGUS)

Lat: 40.65°NLon: 86.15°WElev: 810ft.

A Few Clouds

78°F

26°C

Humidity 80%
Wind Speed SW 8 mph
Barometer 29.96 in (1013.8 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 3 Sep 1:55 am EDT
Extended Forecast for

3 Miles N Miami IN

Heat Advisory September 3, 02:52am until September 3, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 3, 02:52am until September 3, 08:00pm

    NOW until 8:00pm Thu

    Heat Advisory

  • Overnight

    Low: 74 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 92. Heat index values as high as 103. Southwest wind 5 to 10 mph.

    High: 92 °F

    Hot

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms, mainly after 5am.  Partly cloudy, with a low around 71. Southwest wind around 5 mph.

    Low: 71 °F

    Partly Cloudy
    then Chance
    T-storms

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly before 8am.  Mostly sunny and hot, with a high near 90. Heat index values as high as 102. Southeast wind around 5 mph becoming west in the afternoon.

    High: 90 °F

    Chance
    T-storms then
    Sunny

  • Friday Night

    Friday Night: A slight chance of showers, then a chance of showers and thunderstorms after 11pm.  Partly cloudy, with a low around 70. Calm wind.  Chance of precipitation is 50%.

    Low: 70 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 11am.  Mostly sunny, with a high near 84. Chance of precipitation is 40%.

    High: 84 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of thunderstorms before 8pm.  Partly cloudy, with a low around 63. Chance of precipitation is 30%.

    Low: 63 °F

    Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

Detailed Forecast

Overnight
Mostly clear, with a low around 74. Southwest wind around 5 mph.
Thursday
Sunny and hot, with a high near 92. Heat index values as high as 103. Southwest wind 5 to 10 mph.
Thursday Night
A 30 percent chance of showers and thunderstorms, mainly after 5am. Partly cloudy, with a low around 71. Southwest wind around 5 mph.
Friday
A 30 percent chance of showers and thunderstorms, mainly before 8am. Mostly sunny and hot, with a high near 90. Heat index values as high as 102. Southeast wind around 5 mph becoming west in the afternoon.
Friday Night
A slight chance of showers, then a chance of showers and thunderstorms after 11pm. Partly cloudy, with a low around 70. Calm wind. Chance of precipitation is 50%.
Saturday
A chance of showers, with thunderstorms also possible after 11am. Mostly sunny, with a high near 84. Chance of precipitation is 40%.
Saturday Night
A chance of thunderstorms before 8pm. Partly cloudy, with a low around 63. Chance of precipitation is 30%.
Sunday
Sunny, with a high near 80.
Sunday Night
Mostly clear, with a low around 59.
Labor Day
Sunny, with a high near 82.
Monday Night
Partly cloudy, with a low around 62.
Tuesday
Mostly sunny, with a high near 85.
Tuesday Night
Partly cloudy, with a low around 68.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Miami IN
 40.66°N 85.99°W (Elev. 741 ft)
2:30 am EDT Sep 3, 2026
2am EDT Sep 3, 2026-6pm EDT Sep 9, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database