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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

4 Miles NNW Bunker Hill IN

  • Today

    Today: A 10 percent chance of showers and thunderstorms after 5pm. Patchy fog before 7am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 79. Calm wind becoming north around 5 mph in the afternoon.

    High: 79 °F

    Patchy Fog
    then Slight
    Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 60. North wind around 5 mph becoming calm.

    Low: 60 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 79. Calm wind becoming west around 5 mph.

    High: 79 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 62. Calm wind becoming south around 5 mph.

    Low: 62 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers before 8am, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 77. Northwest wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 77 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

Detailed Forecast

Today
A 10 percent chance of showers and thunderstorms after 5pm. Patchy fog before 7am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 79. Calm wind becoming north around 5 mph in the afternoon.
Tonight
A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 60. North wind around 5 mph becoming calm.
Friday
Partly sunny, with a high near 79. Calm wind becoming west around 5 mph.
Friday Night
A 40 percent chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 62. Calm wind becoming south around 5 mph.
Saturday
A chance of showers before 8am, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 77. Northwest wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Saturday Night
Mostly clear, with a low around 58.
Sunday
Sunny, with a high near 74.
Sunday Night
Mostly clear, with a low around 54.
Monday
Mostly sunny, with a high near 74.
Monday Night
Mostly clear, with a low around 56.
Tuesday
Mostly sunny, with a high near 77.
Tuesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 60.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNW Bunker Hill IN
 40.71°N 86.13°W (Elev. 738 ft)
Last Update:
6:00 am EDT Aug 20, 2026
Forecast Valid:
6am EDT Aug 20, 2026-6pm EDT Aug 26, 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