Hazardous Weather Conditions
Current conditions at
Sterling Rockfalls (KSQI)
Lat: 41.74°NLon: 89.67°WElev: 643ft.
Thunderstorm in Vicinity
57°F
14°C
| Humidity | 90% |
| Wind Speed | E 3 mph |
| Barometer | 29.60 in (1002.1 mb) |
| Dewpoint | 54°F (12°C) |
| Visibility | 9.00 mi |
| Last update | 17 Jun 7:56 am CDT |
Extended Forecast for
Harmon IL
Flood Watch June 17, 10:00am until June 17, 05:00pm
Today
High: 73 °F
Heavy Rain
then Severe
Thunderstorms
and BreezyTonight
Low: 57 °F
Severe
Thunderstorms
then Mostly
ClearThursday

High: 75 °F
Mostly Sunny
Thursday Night

Low: 54 °F
Mostly Clear
Juneteenth

High: 77 °F
Sunny
Friday Night

Low: 57 °F
Slight Chance
ShowersSaturday

High: 81 °F
Mostly Sunny
Saturday Night
Low: 61 °F
Mostly Cloudy
then Chance
T-stormsSunday

High: 76 °F
Showers
Likely
Detailed Forecast
Today
Showers and possibly a thunderstorm before 4pm, then showers and thunderstorms likely, mainly between 4pm and 5pm. Some of the storms could be severe and produce heavy rainfall. High near 73. Breezy, with a south southeast wind 10 to 20 mph becoming southwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Tonight
A chance of showers and thunderstorms before 7pm, then a slight chance of showers between 7pm and 8pm. Some of the storms could be severe. Mostly cloudy, then gradually becoming clear, with a low around 57. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 75. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 54. West northwest wind 5 to 10 mph.
Juneteenth
Sunny, with a high near 77. West northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Friday Night
A 20 percent chance of showers before 1am. Mostly clear, with a low around 57.
Saturday
Mostly sunny, with a high near 81.
Saturday Night
A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 61.
Sunday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 76.
Sunday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 58.
Monday
Mostly sunny, with a high near 77.
Monday Night
Partly cloudy, with a low around 55.
Tuesday
Mostly sunny, with a high near 79.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Harmon IL
41.73°N 89.56°W
41.73°N 89.56°W
7:56 am CDT Jun 17, 2026
8am CDT Jun 17, 2026-6pm CDT Jun 23, 2026



