National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Sterling Rockfalls (KSQI)

Lat: 41.74°NLon: 89.67°WElev: 643ft.

Fog/Mist

61°F

16°C

Humidity 97%
Wind Speed SE 5 mph
Barometer 29.91 in (1012.8 mb)
Dewpoint 60°F (16°C)
Visibility 4.00 mi
Last update 15 Oct 1:56 pm CDT
Extended Forecast for

Arlington IL

  • This Afternoon

    This Afternoon: Showers and possibly a thunderstorm, mainly before 5pm, then a chance of showers and thunderstorms after 5pm. Patchy fog after 3pm. High near 64. Southeast wind around 5 mph. Chance of precipitation is 100%.

    High: 64 °F

    Showers and
    Patchy Fog

  • Tonight

    Tonight: Showers and thunderstorms likely before 10pm, then a slight chance of showers between 10pm and 11pm. Mostly cloudy, with a low around 45. Breezy, with a northwest wind 10 to 15 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 60%.

    Low: 45 °F

    Breezy.
    Showers
    Likely then
    Mostly Cloudy

  • Friday

    Friday: A 50 percent chance of showers, mainly after 1pm. Partly sunny, with a high near 54. Breezy, with a northwest wind 20 to 25 mph, with gusts as high as 30 mph.

    High: 54 °F

    Breezy.
    Partly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: Widespread frost, mainly after 5am. Otherwise, mostly clear, with a low around 32. North wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 32 °F

    Mostly Clear
    then Frost

  • Saturday

    Saturday: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 57.

    High: 57 °F

    Frost then
    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 37.

    Low: 37 °F

    Clear

  • Sunday

    Sunday: Areas of frost before 7am. Otherwise, sunny, with a high near 65.

    High: 65 °F

    Areas Frost
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm, mainly before 5pm, then a chance of showers and thunderstorms after 5pm. Patchy fog after 3pm. High near 64. Southeast wind around 5 mph. Chance of precipitation is 100%.
Tonight
Showers and thunderstorms likely before 10pm, then a slight chance of showers between 10pm and 11pm. Mostly cloudy, with a low around 45. Breezy, with a northwest wind 10 to 15 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 60%.
Friday
A 50 percent chance of showers, mainly after 1pm. Partly sunny, with a high near 54. Breezy, with a northwest wind 20 to 25 mph, with gusts as high as 30 mph.
Friday Night
Widespread frost, mainly after 5am. Otherwise, mostly clear, with a low around 32. North wind 5 to 15 mph, with gusts as high as 25 mph.
Saturday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 57.
Saturday Night
Clear, with a low around 37.
Sunday
Areas of frost before 7am. Otherwise, sunny, with a high near 65.
Sunday Night
Mostly clear, with a low around 41.
Monday
Mostly sunny, with a high near 68.
Monday Night
Partly cloudy, with a low around 44.
Tuesday
Mostly sunny, with a high near 72.
Tuesday Night
Mostly clear, with a low around 47.
Wednesday
Mostly sunny, with a high near 73.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Arlington IL
 41.48°N 89.25°W (Elev. 774 ft)
Last Update:
2:01 pm CDT Oct 15, 2026
Forecast Valid:
2pm CDT Oct 15, 2026-6pm CDT Oct 21, 2026
 
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