Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Hazardous Weather Conditions

Current conditions at

Sterling Rockfalls (KSQI)

Lat: 41.74°NLon: 89.67°WElev: 643ft.

Fair

69°F

21°C

Humidity 100%
Wind Speed Calm
Barometer 29.94 in (1013.3 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 19 Aug 12:56 am CDT
Extended Forecast for

Amboy IL

  • Overnight

    Overnight: Patchy fog.  Otherwise, mostly cloudy, with a low around 64. West southwest wind around 5 mph becoming calm.

    Low: 64 °F

    Patchy Fog

  • Wednesday

    Wednesday: Areas of fog before 10am.  Otherwise, partly sunny, with a high near 79. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 79 °F

    Areas Fog
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 57. Calm wind.

    Low: 57 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, then gradually becoming sunny, with a high near 80. Calm wind.

    High: 80 °F

    Becoming
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 59. Calm wind.

    Low: 59 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 80. Chance of precipitation is 50%.

    High: 80 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am.  Partly cloudy, with a low around 61.

    Low: 61 °F

    Chance
    T-storms

  • Saturday

    Saturday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 64. West southwest wind around 5 mph becoming calm.
Wednesday
Areas of fog before 10am. Otherwise, partly sunny, with a high near 79. Calm wind becoming northeast around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 57. Calm wind.
Thursday
Partly sunny, then gradually becoming sunny, with a high near 80. Calm wind.
Thursday Night
Mostly clear, with a low around 59. Calm wind.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 80. Chance of precipitation is 50%.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 61.
Saturday
Sunny, with a high near 78.
Saturday Night
Mostly clear, with a low around 57.
Sunday
Mostly sunny, with a high near 76.
Sunday Night
Partly cloudy, with a low around 57.
Monday
Mostly sunny, with a high near 77.
Monday Night
Partly cloudy, with a low around 60.
Tuesday
Mostly sunny, with a high near 80.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Amboy IL
 41.72°N 89.33°W
12:11 am CDT Aug 19, 2026
1am CDT Aug 19, 2026-6pm CDT Aug 25, 2026
 
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