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

Onward IN

  • Overnight

    Overnight: A 20 percent chance of showers. Cloudy, with a low around 53. Southeast wind around 5 mph.

    Low: 53 °F

    Slight Chance
    Showers

  • Monday

    Monday: A 20 percent chance of showers. Cloudy, with a high near 64. South wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 64 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: A 20 percent chance of showers before 9pm. Mostly cloudy, with a low around 58. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 58 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 74. South wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 74 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Showers, mainly after 1am. Low around 62. South wind 15 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 62 °F

    Slight Chance
    Showers then
    Showers

  • Wednesday

    Wednesday: Showers, mainly before 1pm. High near 70. Chance of precipitation is 90%.

    High: 70 °F

    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of showers. Cloudy, with a low around 53. Southeast wind around 5 mph.
Monday
A 20 percent chance of showers. Cloudy, with a high near 64. South wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
A 20 percent chance of showers before 9pm. Mostly cloudy, with a low around 58. South wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday
Partly sunny, with a high near 74. South wind 15 to 20 mph, with gusts as high as 30 mph.
Tuesday Night
Showers, mainly after 1am. Low around 62. South wind 15 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Showers, mainly before 1pm. High near 70. Chance of precipitation is 90%.
Wednesday Night
Partly cloudy, with a low around 48.
Thursday
Mostly sunny, with a high near 64.
Thursday Night
Mostly cloudy, with a low around 46.
Friday
Mostly cloudy, with a high near 59.
Friday Night
Mostly cloudy, with a low around 40.
Saturday
Partly sunny, with a high near 59.
Saturday Night
Mostly cloudy, with a low around 38.
Sunday
A slight chance of showers. Mostly sunny, with a high near 59.
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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:
2:00 am EST Nov 2, 2026
Forecast Valid:
2am EST Nov 2, 2026-6pm EST Nov 8, 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