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Hazardous Weather Conditions
Current conditions at
Grissom Air Force Base / Peru (KGUS)
Lat: 40.65°NLon: 86.15°WElev: 810ft.
Partly Cloudy
76°F
24°C
| Humidity | 77% |
| Wind Speed | E 6 mph |
| Barometer | 29.90 in (1012.2 mb) |
| Dewpoint | 69°F (21°C) |
| Visibility | 10.00 mi |
| Heat Index | 77°F (25°C) |
| Last update | 20 Sep 12:55 pm EDT |
Extended Forecast for
Grissom Air Force Base / Peru IN
Flood Watch September 20, 01:57pm until September 20, 02:00pm
NOW until 2:00pm Sun
Flood Watch
This Afternoon
High: 78 °F
Showers
LikelyTonight
Low: 57 °F
Heavy Rain
then Chance
ShowersMonday
High: 67 °F
Chance
Showers then
CloudyMonday Night
Low: 53 °F
Mostly Cloudy
Tuesday
High: 64 °F
Mostly Cloudy
Tuesday Night
Low: 53 °F
Mostly Cloudy
Wednesday
High: 66 °F
Mostly Cloudy
Wednesday Night
Low: 51 °F
Mostly Cloudy
Detailed Forecast
This Afternoon
Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms, mainly after 3pm. Mostly cloudy, with a high near 78. East wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and possibly a thunderstorm before midnight, then a chance of showers. Some of the storms could produce heavy rainfall. Low around 57. Northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Monday
A 30 percent chance of showers, mainly between 7am and 9am. Mostly cloudy, with a high near 67. Northeast wind around 15 mph, with gusts as high as 25 mph.
Monday Night
Mostly cloudy, with a low around 53. Northeast wind around 15 mph, with gusts as high as 20 mph.
Tuesday
Mostly cloudy, with a high near 64. Northeast wind around 15 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly cloudy, with a low around 53.
Wednesday
Mostly cloudy, with a high near 66.
Wednesday Night
Mostly cloudy, with a low around 51.
Thursday
Partly sunny, with a high near 68.
Thursday Night
Mostly cloudy, with a low around 51.
Friday
Mostly sunny, with a high near 68.
Friday Night
Partly cloudy, with a low around 48.
Saturday
Mostly sunny, with a high near 71.
Additional Forecasts and Information
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Point Forecast:
Grissom Air Force Base / Peru IN
40.65°N 86.14°W (Elev. 804 ft)
40.65°N 86.14°W (Elev. 804 ft)
12:30 pm EDT Sep 20, 2026
1pm EDT Sep 20, 2026-6pm EDT Sep 26, 2026
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