Weather for Lockport, Illinois
Current Weather
Five Day Weather Forecast
Fri
H: 78°F
L: 59°F
Sat
H: 65°F
L: 48°F
Sun
H: 69°F
L: 47°F
Mon
H: 73°F
L: 52°F
Tue
H: 57°F
L: 52°F
Air Quality
Nitrogen Dioxide: 19.35 μg/m3
Sulphur Dioxide: 4.45 μg/m3
Ozone: 59 μg/m3
Astronomical
Sun Transit: 12:50 AM
Sunset: 7:43 PM
Daylight: 13 hrs 44 mins
Moon Transit: 7:58 PM
Moonset: 2:42 AM
Moon Phase: First Quarter
Moon Illumination: 50.4%
Best Times for Fishing or Hunting
Major Periods
7:19 AM - 9:49 AM7:28 PM - 9:58 PM
Minor Periods
12:03 AM - 1:33 PM2:12 AM - 3:42 AM
Action Rating: 3 out of 5
Flood Warning issued April 23 at 9:15PM CDT by NWS Chicago IL
Effective: Thu April 23, 2026, 9:15 PM
Expires: Fri April 24, 2026, 3:15 PM
...The Flood Warning continues for the following rivers in Illinois... Fox River at Montgomery affecting Kendall and Kane Counties. Fox River at Algonquin Lock & Dam tailwater affecting McHenry, Kane and Lake IL Counties. * WHAT...Minor flooding is occurring and is forecasted to continue. * WHERE...Fox River from Red Gate Road in St. Charles downstream to Millington, including the Montgomery gauge. * WHEN...Until further notice. * IMPACTS...At 13.5 feet, low-lying parking lots at city hall and Boy Scout Island are threatened in St. Charles. Fox River Trail is threatened at St. Mary Park in St. Charles. * ADDITIONAL DETAILS... - At 8:00 PM CDT Thursday, the stage was 13.5 feet. - Forecast...The river is expected to remain nearly steady at around 13.5 feet until at least early next week. - Flood stage is 13.5 feet. - http://www.weather.gov/safety/flood
A Flood Warning means water levels above flood stage are imminent or may already be occurring. Persons along rivers and streams in the warned area should take immediate precautions to protect life and property. These forecasts are based on observed precipitation as well as forecast precipitation 24 hours into the future. Changes to the rainfall forecast, or any additional rainfall after 24 hours, may cause changes to these river forecasts. Additional information is available at www.weather.gov. The next statement will be issued by Friday afternoon.
Flood Warning issued April 24 at 10:55AM CDT until April 28 at 1:00PM CDT by NWS Chicago IL
Effective: Fri April 24, 2026, 10:55 AM
Expires: Sat April 25, 2026, 5:00 AM
...The Flood Warning continues for the following rivers in Illinois... Fox River at Montgomery affecting Kane and Kendall Counties. Fox River at Algonquin Lock & Dam tailwater affecting Kane, McHenry and Lake IL Counties. For the Fox River (Illinois)...including Algonquin Lock & Dam tailwater, Montgomery, Dayton...Major flooding is forecast. * WHAT...Minor flooding is occurring and is forecasted to continue. * WHERE...Fox River from Red Gate Road in St. Charles downstream to Millington, including the Montgomery gauge. * WHEN...Until early Tuesday afternoon. * IMPACTS...At 13.5 feet, low-lying parking lots at city hall and Boy Scout Island are threatened in St. Charles. Fox River Trail is threatened at St. Mary Park in St. Charles. * ADDITIONAL DETAILS... - At 10:00 AM CDT Friday the stage was 13.5 feet. - Forecast...The river is expected to remain nearly steady at around 13.5 feet until at least early next week. - Flood stage is 13.5 feet. - http://www.weather.gov/safety/flood
A Flood Warning means water levels above flood stage are imminent or may already be occurring. Persons along rivers and streams in the warned area should take immediate precautions to protect life and property. These forecasts are based on observed precipitation as well as forecast precipitation 24 hours into the future. Changes to the rainfall forecast, or any additional rainfall after 24 hours, may cause changes to these river forecasts. Additional information is available at www.weather.gov. The next statement will be issued by late tonight.
Flood Warning issued April 23 at 9:10PM CDT until April 25 at 7:00AM CDT by NWS Chicago IL
Effective: Thu April 23, 2026, 9:10 PM
Expires: Fri April 24, 2026, 3:15 PM
...The Flood Warning is extended for the following rivers in Illinois... Des Plaines River at Lincolnshire affecting Cook and Lake IL Counties. Des Plaines River near Gurnee affecting Lake IL County. ...The Flood Warning continues for the following rivers in Illinois... Des Plaines River near Des Plaines affecting Cook County. Des Plaines River near Russell affecting Lake IL County. * WHAT...Minor flooding is occurring and is forecasted to continue. * WHERE...Des Plaines River from Palatine Road in Prospect Heights downstream to Irving Park Road in Chicago, including the Des Plaines gauge. * WHEN...Until Saturday morning. * IMPACTS...At 17.0 feet, Central Road and Golf Road are threatened in Des Plaines. * ADDITIONAL DETAILS... - At 8:45 PM CDT Thursday, the stage was 16.3 feet. - Forecast...The river is expected to fall below flood stage early Saturday morning. - Flood stage is 15.0 feet. - http://www.weather.gov/safety/flood
A Flood Warning means water levels above flood stage are imminent or may already be occurring. Persons along rivers and streams in the warned area should take immediate precautions to protect life and property. These forecasts are based on observed precipitation as well as forecast precipitation 24 hours into the future. Changes to the rainfall forecast, or any additional rainfall after 24 hours, may cause changes to these river forecasts. Additional information is available at www.weather.gov. The next statement will be issued by Friday afternoon.
Flood Warning issued April 23 at 9:10PM CDT until April 25 at 1:00PM CDT by NWS Chicago IL
Effective: Thu April 23, 2026, 9:10 PM
Expires: Fri April 24, 2026, 3:15 PM
...The Flood Warning is extended for the following rivers in Illinois... Des Plaines River at Lincolnshire affecting Cook and Lake IL Counties. Des Plaines River near Gurnee affecting Lake IL County. ...The Flood Warning continues for the following rivers in Illinois... Des Plaines River near Des Plaines affecting Cook County. Des Plaines River near Russell affecting Lake IL County. * WHAT...Minor flooding is occurring and is forecasted to continue. * WHERE...Des Plaines River from Townline Road in Libertyville downstream to Palatine Road in Prospect Heights, including the Lincolnshire gauge. * WHEN...Until early Saturday afternoon. * IMPACTS...At 14.0 feet, residences threatened east of the river just south of IL-22 (Half-Day Road). Lincolnshire Drive threatened at Wiltshire Lane. * ADDITIONAL DETAILS... - At 7:45 PM CDT Thursday, the stage was 13.7 feet. - Forecast...The river is expected to fall below flood stage sometime Saturday morning. - Flood stage is 12.5 feet. - http://www.weather.gov/safety/flood
A Flood Warning means water levels above flood stage are imminent or may already be occurring. Persons along rivers and streams in the warned area should take immediate precautions to protect life and property. These forecasts are based on observed precipitation as well as forecast precipitation 24 hours into the future. Changes to the rainfall forecast, or any additional rainfall after 24 hours, may cause changes to these river forecasts. Additional information is available at www.weather.gov. The next statement will be issued by Friday afternoon.
Flood Warning issued April 24 at 10:51AM CDT until April 25 at 1:00PM CDT by NWS Chicago IL
Effective: Fri April 24, 2026, 10:51 AM
Expires: Sat April 25, 2026, 5:00 AM
...The Flood Warning is extended for the following rivers in Illinois... Des Plaines River near Des Plaines affecting Cook County. ...The Flood Warning continues for the following rivers in Illinois... Des Plaines River near Russell affecting Lake IL County. Des Plaines River near Gurnee affecting Lake IL County. Des Plaines River at Lincolnshire affecting Cook and Lake IL Counties. For the Des Plaines River...including Russell, Gurnee, Lincolnshire, Des Plaines, River Forest, Riverside...Minor flooding is forecast. * WHAT...Minor flooding is occurring and is forecasted to continue. * WHERE...Des Plaines River from Townline Road in Libertyville downstream to Palatine Road in Prospect Heights, including the Lincolnshire gauge. * WHEN...Until early tomorrow afternoon. * IMPACTS...At 13.0 feet, Low-lying trails in Wright Woods Forest Preserve are inundated. * ADDITIONAL DETAILS... - At 9:45 AM CDT Friday the stage was 13.2 feet. - Forecast...The river is expected to fall below flood stage sometime Saturday morning. - Flood stage is 12.5 feet. - http://www.weather.gov/safety/flood
A Flood Warning means water levels above flood stage are imminent or may already be occurring. Persons along rivers and streams in the warned area should take immediate precautions to protect life and property. These forecasts are based on observed precipitation as well as forecast precipitation 24 hours into the future. Changes to the rainfall forecast, or any additional rainfall after 24 hours, may cause changes to these river forecasts. Additional information is available at www.weather.gov. The next statement will be issued by late tonight.
Weather Forecast
Air Quality
Nitrogen Dioxide: 7.53 μg/m3
Sulphur Dioxide: 2.83 μg/m3
Ozone: 91.68 μg/m3
Astronomical
Sun Transit: 12:50 AM
Sunset: 7:43 PM
Daylight: 13 hrs 44 mins
Moon Transit: 7:58 PM
Moonset: 2:42 AM
Moon Phase: First Quarter
Moon Illumination: 50.4%
Best Times for Fishing or Hunting
Major Periods
7:19 AM - 9:49 AM7:28 PM - 9:58 PM
Minor Periods
12:03 AM - 1:33 PM2:12 AM - 3:42 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 13.39 μg/m3
Sulphur Dioxide: 4.76 μg/m3
Ozone: 73.88 μg/m3
Astronomical
Sun Transit: 12:50 AM
Sunset: 7:44 PM
Daylight: 13 hrs 47 mins
Moon Transit: 8:46 PM
Moonset: 3:11 AM
Moon Phase: First Quarter
Moon Illumination: 61.6%
Best Times for Fishing or Hunting
Major Periods
8:09 AM - 10:39 AM8:16 PM - 10:46 PM
Minor Periods
1:15 PM - 2:45 PM2:41 AM - 4:11 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 14.48 μg/m3
Sulphur Dioxide: 4.79 μg/m3
Ozone: 80.4 μg/m3
Astronomical
Sun Transit: 12:50 AM
Sunset: 7:45 PM
Daylight: 13 hrs 49 mins
Moon Transit: 9:31 PM
Moonset: 3:35 AM
Moon Phase: First Quarter
Moon Illumination: 72.3%
Best Times for Fishing or Hunting
Major Periods
8:55 AM - 11:25 AM9:01 PM - 11:31 PM
Minor Periods
2:24 PM - 3:54 PM3:05 AM - 4:35 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 14.21 μg/m3
Sulphur Dioxide: 7.11 μg/m3
Ozone: 79.84 μg/m3
Astronomical
Sun Transit: 12:49 AM
Sunset: 7:46 PM
Daylight: 13 hrs 52 mins
Moon Transit: 10:13 PM
Moonset: 3:57 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 81.8%
Best Times for Fishing or Hunting
Major Periods
9:38 AM - 12:08 AM12:00 AM - 12:00 AM
Minor Periods
3:30 PM - 5:00 PM3:27 AM - 4:57 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 11.3 μg/m3
Sulphur Dioxide: 3.57 μg/m3
Ozone: 72.23 μg/m3
Astronomical
Sun Transit: 12:49 AM
Sunset: 7:47 PM
Daylight: 13 hrs 54 mins
Moon Transit: 10:55 PM
Moonset: 4:17 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 89.6%
Best Times for Fishing or Hunting
Major Periods
10:20 AM - 12:50 AM12:00 AM - 12:00 AM
Minor Periods
4:34 PM - 6:04 PM3:47 AM - 5:17 AM
Action Rating: 2 out of 5