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.

Thunderstorm

77°F

25°C

Humidity 91%
Wind Speed E 5 mph
Barometer 30.00 in (1015.6 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 7 Aug 9:55 pm EDT
Extended Forecast for

Miami IN

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 67. South wind around 5 mph.

    Low: 67 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: A slight chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 83. West wind 5 to 10 mph. Chance of precipitation is 20%.

    High: 83 °F

    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 61. Northwest wind around 5 mph becoming calm in the evening.

    Low: 61 °F

    Mostly Clear

  • Sunday

    Sunday: A slight chance of showers between 2pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 83. Light south wind increasing to 5 to 10 mph in the afternoon. Chance of precipitation is 20%.

    High: 83 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 69. Southwest wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Chance
    T-storms then
    Showers
    Likely

  • Monday

    Monday: Showers likely and possibly a thunderstorm before 8am, then a chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 60%.

    High: 85 °F

    Showers
    Likely then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.

    Low: 69 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 60%.

    High: 83 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. Chance of precipitation is 70%.

    Low: 66 °F

    Showers
    Likely

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 67. South wind around 5 mph.
Saturday
A slight chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 83. West wind 5 to 10 mph. Chance of precipitation is 20%.
Saturday Night
Mostly clear, with a low around 61. Northwest wind around 5 mph becoming calm in the evening.
Sunday
A slight chance of showers between 2pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 83. Light south wind increasing to 5 to 10 mph in the afternoon. Chance of precipitation is 20%.
Sunday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 69. Southwest wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Showers likely and possibly a thunderstorm before 8am, then a chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 60%.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. Chance of precipitation is 70%.
Wednesday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 80.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
Thursday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 78.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 58.
Friday
A slight chance of showers. Partly sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Miami IN
 40.6°N 85.97°W (Elev. 797 ft)
Last Update:
9:46 pm EDT Aug 7, 2026
Forecast Valid:
10pm EDT Aug 7, 2026-6pm EDT Aug 14, 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