Hazardous Weather Conditions
Current conditions at
Sterling Rockfalls (KSQI)
Lat: 41.74°NLon: 89.67°WElev: 643ft.
Fair
91°F
33°C
| Humidity | 57% |
| Wind Speed | Vrbl 6 mph |
| Barometer | 30.04 in (1016.4 mb) |
| Dewpoint | 74°F (23°C) |
| Visibility | 10.00 mi |
| Heat Index | 100°F (38°C) |
| Last update | 2 Jul 1:56 pm CDT |
Extended Forecast for
Lyndon IL
Extreme Heat Warning July 2, 02:29pm until July 2, 10:00pm
NOW until 10:00pm Thu
Extreme Heat Warning
This Afternoon
High: 92 °F
Sunny
Tonight
Low: 72 °F
Chance
T-storms then
Showers
LikelyFriday
High: 90 °F
Showers
LikelyFriday Night
Low: 70 °F
Chance
T-stormsIndependence Day
High: 90 °F
Partly Sunny
then Showers
LikelySaturday Night
Low: 68 °F
Showers
LikelySunday
High: 85 °F
Partly Sunny
Sunday Night
Low: 64 °F
Partly Cloudy
Detailed Forecast
This Afternoon
Sunny, with a high near 92. Heat index values as high as 102. Southwest wind around 15 mph, with gusts as high as 20 mph.
Tonight
A slight chance of showers before 9pm, then a chance of showers and thunderstorms between 9pm and 2am, then showers likely and possibly a thunderstorm after 2am. Partly cloudy, with a low around 72. Southwest wind 5 to 10 mph becoming north after midnight. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Friday
Showers and thunderstorms likely before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 90. Heat index values as high as 102. South wind 5 to 15 mph becoming west in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
A 50 percent chance of showers and thunderstorms, mainly after 11pm. Mostly cloudy, with a low around 70. South wind around 5 mph.
Independence Day
Showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 90. Chance of precipitation is 60%.
Saturday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 68. Chance of precipitation is 60%.
Sunday
Partly sunny, with a high near 85.
Sunday Night
Partly cloudy, with a low around 64.
Monday
Mostly sunny, with a high near 85.
Monday Night
Partly cloudy, with a low around 63.
Tuesday
Mostly sunny, with a high near 87.
Tuesday Night
Partly cloudy, with a low around 65.
Wednesday
Mostly sunny, with a high near 88.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Lyndon IL
41.72°N 89.91°W (Elev. 600 ft)
41.72°N 89.91°W (Elev. 600 ft)
1:26 pm CDT Jul 2, 2026
2pm CDT Jul 2, 2026-6pm CDT Jul 8, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
