Current conditions at

Grissom Air Force Base / Peru (KGUS)

Lat: 40.65° N Lon: 86.15° W Elev: 810 ft.

Overcast

60°F

16°C

Humidity 38%
Wind Speed S 8 mph
Barometer 30.08 in (1019.1 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 29 Mar 7:55 pm EDT
Detailed forecast for

Miami County

Tonight
Mostly cloudy this evening, then becoming partly cloudy. Not as cool with lows in the lower 50s. Southwest winds 10 to 15 mph.
Monday
Partly cloudy. Highs around 70. Southwest winds 15 to 20 mph.
Monday Night
Partly cloudy with a slight chance of showers and thunderstorms. Lows in the lower 60s. Southwest winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 20 percent.
Tuesday
Mostly cloudy. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Breezy with highs in the upper 70s. Southwest winds 15 to 25 mph with gusts up to 35 mph. Chance of rain 50 percent.
Tuesday Night
Showers with a chance of thunderstorms. Cooler with lows in the upper 40s. Southwest winds 15 to 20 mph, becoming northwest 10 to 15 mph after midnight. Gusts up to 30 mph. Chance of rain 90 percent.
Wednesday
Showers in the morning, then showers likely with a slight chance of thunderstorms in the afternoon. Much cooler with highs in the mid 50s. Chance of rain 90 percent.
Wednesday Night
Cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers after midnight. Lows in the mid 40s. Chance of rain 80 percent.
Thursday
Showers with a slight chance of thunderstorms. Highs in the mid 60s. Chance of rain 80 percent.
Thursday Night
Showers likely. Lows in the mid 40s. Chance of rain 70 percent.
Friday
Mostly cloudy. Showers likely, mainly in the morning. Highs in the mid 60s. Chance of rain 70 percent.
Friday Night
Mostly cloudy with a 50 percent chance of showers. Lows in the lower 50s.
Saturday
Showers likely. A slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 70 percent.
Saturday Night
Showers likely with a slight chance of thunderstorms. Lows in the lower 50s. Chance of rain 70 percent.
Sunday
Mostly cloudy. Showers likely, mainly in the morning. Breezy with highs in the upper 50s. Chance of rain 60 percent.



Basemap Options
Click map to change the forecast location
Loading map...
658 PM EDT Sun Mar 29 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database