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.

Fair

62°F

17°C

Humidity 87%
Wind Speed NE 5 mph
Barometer 30.14 in (1020.5 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 5 Aug 12:55 am EDT
Extended Forecast for

Onward IN

  • Overnight

    Overnight: Mostly cloudy, with a low around 62. East wind around 5 mph.

    Low: 62 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 84. East wind around 5 mph.

    High: 84 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 63. East wind around 5 mph becoming calm.

    Low: 63 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 84. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 84 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 64. East wind around 5 mph becoming calm.

    Low: 64 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 62. East wind around 5 mph.
Tuesday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 84. East wind around 5 mph.
Tuesday Night
A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 63. East wind around 5 mph becoming calm.
Wednesday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 84. Calm wind becoming southeast around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 64. East wind around 5 mph becoming calm.
Thursday
Sunny, with a high near 86.
Thursday Night
Mostly clear, with a low around 67.
Friday
Sunny, with a high near 87.
Friday Night
Mostly clear, with a low around 68.
Saturday
Sunny, with a high near 88.
Saturday Night
Partly cloudy, with a low around 69.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Onward IN
 40.7°N 86.19°W (Elev. 761 ft)
Last Update:
1:30 am EDT Aug 5, 2025
Forecast Valid:
1am EDT Aug 5, 2025-6pm EDT Aug 11, 2025
 
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