Current conditions at

Grissom Air Force Base / Peru (KGUS)

Lat: 40.65°NLon: 86.15°WElev: 810ft.

Fair

69°F

21°C

Humidity 71%
Wind Speed S 7 mph
Barometer 29.95 in (1013.8 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 18 May 2:55 am EDT
Extended Forecast for

Amboy IN

  • Overnight

    Overnight: Mostly clear, with a low around 65. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 65 °F

    Mostly Clear

  • Monday

    Monday: Showers and thunderstorms likely before 4pm, then showers and possibly a thunderstorm between 4pm and 5pm, then showers and thunderstorms likely after 5pm.  High near 84. Southwest wind 15 to 20 mph, with gusts as high as 30 mph.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Sunny then
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm.  Mostly cloudy, with a low around 68. South wind around 15 mph, with gusts as high as 25 mph.

    Low: 68 °F

    Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms between 1pm and 2pm, then showers and possibly a thunderstorm after 2pm.  High near 85. Breezy, with a south wind 20 to 25 mph, with gusts as high as 30 mph.  Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Mostly Sunny
    then Showers
    and Breezy

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 11pm, then showers likely.  Low around 56. Southwest wind 10 to 15 mph becoming northwest after midnight. Winds could gust as high as 20 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 56 °F

    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers before 8am.  Partly sunny, with a high near 66.

    High: 66 °F

    Chance
    Showers then
    Partly Sunny

  • Wednesday Night

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

    Low: 48 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 65. South wind around 10 mph, with gusts as high as 20 mph.
Monday
Showers and thunderstorms likely before 4pm, then showers and possibly a thunderstorm between 4pm and 5pm, then showers and thunderstorms likely after 5pm. High near 84. Southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 68. South wind around 15 mph, with gusts as high as 25 mph.
Tuesday
A chance of showers and thunderstorms between 1pm and 2pm, then showers and possibly a thunderstorm after 2pm. High near 85. Breezy, with a south wind 20 to 25 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers and possibly a thunderstorm before 11pm, then showers likely. Low around 56. Southwest wind 10 to 15 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
A 30 percent chance of showers before 8am. Partly sunny, with a high near 66.
Wednesday Night
Mostly cloudy, with a low around 48.
Thursday
Mostly sunny, with a high near 66.
Thursday Night
Partly cloudy, with a low around 49.
Friday
A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 72. Chance of precipitation is 50%.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 58.
Saturday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 76.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 59.
Sunday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
Amboy IN
 40.62°N 85.94°W (Elev. 797 ft)
3:46 am EDT May 18, 2026
3am EDT May 18, 2026-6pm EDT May 24, 2026
 
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Additional Resources

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