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

Amboy IN

  • Overnight

    Overnight: Clear, with a low around 56. Calm wind.

    Low: 56 °F

    Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 81. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 81 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 65. Southwest wind around 5 mph becoming calm in the evening.

    Low: 65 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 87. West wind around 5 mph.

    High: 87 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms between 2am and 5am, then a slight chance of showers after 5am. Partly cloudy, with a low around 70. Southwest wind around 5 mph. Chance of precipitation is 20%.

    Low: 70 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 11am. Mostly sunny and hot, with a high near 90. Chance of precipitation is 50%.

    High: 90 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 71. Chance of precipitation is 60%.

    Low: 71 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms before 8am. Mostly sunny, with a high near 86.

    High: 86 °F

    Chance
    Showers then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 56. Calm wind.
Saturday
Mostly sunny, with a high near 81. Calm wind becoming southwest around 5 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 65. Southwest wind around 5 mph becoming calm in the evening.
Sunday
Partly sunny, with a high near 87. West wind around 5 mph.
Sunday Night
A slight chance of showers and thunderstorms between 2am and 5am, then a slight chance of showers after 5am. Partly cloudy, with a low around 70. Southwest wind around 5 mph. Chance of precipitation is 20%.
Monday
A chance of showers, with thunderstorms also possible after 11am. Mostly sunny and hot, with a high near 90. Chance of precipitation is 50%.
Monday Night
Showers likely and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 71. Chance of precipitation is 60%.
Tuesday
A 30 percent chance of showers and thunderstorms before 8am. Mostly sunny, with a high near 86.
Tuesday Night
Mostly clear, with a low around 64.
Wednesday
Sunny, with a high near 84.
Wednesday Night
Mostly clear, with a low around 64.
Thursday
Sunny, with a high near 85.
Thursday Night
Mostly clear, with a low around 66.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 85.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Amboy IN
 40.59°N 85.94°W (Elev. 797 ft)
Last Update:
1:14 am EDT Jul 25, 2026
Forecast Valid:
2am EDT Jul 25, 2026-6pm EDT Jul 31, 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