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.

Fair

46°F

8°C

Humidity 72%
Wind Speed S 12 mph
Barometer 29.84 in (1010.9 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 9 Mar 6:55 am EDT
Extended Forecast for

4 Miles NNW Bunker Hill IN

  • Today

    Today: Sunny, with a high near 69. Southwest wind around 15 mph, with gusts as high as 30 mph.

    High: 69 °F

    Sunny

  • Tonight

    Tonight: A slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 58. Southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    Low: 58 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers between 2pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 73. Southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 73 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8pm. Low around 57. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 57 °F

    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 65. Southwest wind 15 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.

    High: 65 °F

    Showers

  • Wednesday Night

    Wednesday Night: Rain showers likely, possibly mixing with snow after 11pm, then gradually ending. Mostly cloudy, with a low around 30. Blustery. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 30 °F

    Rain/Snow
    Likely and
    Blustery then
    Slight Chance
    Rain/Snow

  • Thursday

    Thursday: Sunny, with a high near 45.

    High: 45 °F

    Sunny

  • Thursday Night

    Thursday Night: A chance of rain and snow after 2am. Mostly cloudy, with a low around 37. Breezy. Chance of precipitation is 40%.

    Low: 37 °F

    Mostly Cloudy
    then Chance
    Rain/Snow and
    Breezy

  • Friday

    Friday: A chance of rain and snow before 8am, then a slight chance of rain between 8am and 2pm. Partly sunny, with a high near 53. Breezy. Chance of precipitation is 30%.

    High: 53 °F

    Breezy.
    Chance
    Rain/Snow
    then Slight
    Chance Rain

Detailed Forecast

Today
Sunny, with a high near 69. Southwest wind around 15 mph, with gusts as high as 30 mph.
Tonight
A slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 58. Southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Tuesday
A slight chance of showers between 2pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 73. Southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Tuesday Night
A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8pm. Low around 57. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
Showers and possibly a thunderstorm. High near 65. Southwest wind 15 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
Wednesday Night
Rain showers likely, possibly mixing with snow after 11pm, then gradually ending. Mostly cloudy, with a low around 30. Blustery. Chance of precipitation is 60%. Little or no snow accumulation expected.
Thursday
Sunny, with a high near 45.
Thursday Night
A chance of rain and snow after 2am. Mostly cloudy, with a low around 37. Breezy. Chance of precipitation is 40%.
Friday
A chance of rain and snow before 8am, then a slight chance of rain between 8am and 2pm. Partly sunny, with a high near 53. Breezy. Chance of precipitation is 30%.
Friday Night
Mostly cloudy, with a low around 30.
Saturday
A 20 percent chance of snow. Mostly cloudy, with a high near 48.
Saturday Night
A 40 percent chance of rain. Cloudy, with a low around 39.
Sunday
Rain likely. Cloudy, with a high near 58. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNW Bunker Hill IN
 40.71°N 86.13°W (Elev. 738 ft)
Last Update:
5:01 am EDT Mar 9, 2026
Forecast Valid:
7am EDT Mar 9, 2026-6pm EDT Mar 15, 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