National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Grissom Air Force Base / Peru (KGUS)

Lat: 40.65°NLon: 86.15°WElev: 810ft.

Mostly Cloudy

70°F

21°C

Humidity 92%
Wind Speed Calm
Barometer 29.92 in (1012.9 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 19 Aug 11:55 pm EDT
Extended Forecast for

5 Miles ESE Young America IN

Flood Watch August 20, 01:47am until August 20, 08:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch August 20, 01:47am until August 20, 08:00am

    NOW until 8:00am Thu

    Flood Watch

  • Overnight

    Low: 66 °F

    Scattered
    Showers and
    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 8am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 79. North northeast wind 3 to 6 mph.

    High: 79 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 3am. Otherwise, mostly clear, with a low around 59. Light and variable wind.

    Low: 59 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 80. Light and variable wind.

    High: 80 °F

    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly before 2am. Partly cloudy, with a low around 61. Light southwest wind.

    Low: 61 °F

    Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers before 8am, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 78. West northwest wind 6 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 78 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 58. West northwest wind 3 to 7 mph.

    Low: 58 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 76. Northwest wind 5 to 10 mph.

    High: 76 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

Detailed Forecast

Overnight
Scattered showers, mainly before 3am. Patchy fog before 5am. Otherwise, cloudy, with a steady temperature around 66. Calm wind. Chance of precipitation is 30%.
Thursday
Patchy fog before 8am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 79. North northeast wind 3 to 6 mph.
Thursday Night
Patchy fog after 3am. Otherwise, mostly clear, with a low around 59. Light and variable wind.
Friday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 80. Light and variable wind.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly before 2am. Partly cloudy, with a low around 61. Light southwest wind.
Saturday
A slight chance of showers before 8am, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 78. West northwest wind 6 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Saturday Night
A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 58. West northwest wind 3 to 7 mph.
Sunday
A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 76. Northwest wind 5 to 10 mph.
Sunday Night
Partly cloudy, with a low around 55. North northwest wind 5 to 7 mph becoming calm in the evening.
Monday
A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 76. Calm wind becoming southwest around 5 mph in the afternoon.
Monday Night
A 20 percent chance of showers. Partly cloudy, with a low around 57.
Tuesday
A 10 percent chance of showers. Mostly sunny, with a high near 78.
Tuesday Night
Partly cloudy, with a low around 61.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 80.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ESE Young America IN
 40.52°N 86.27°W (Elev. 804 ft)
Last Update:
1:15 am EDT Aug 20, 2026
Forecast Valid:
1am EDT Aug 20, 2026-6pm EDT Aug 26, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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