Weather for Marseilles, Illinois
Current Weather
Five Day Weather Forecast
Thu
H: 61°F
L: 38°F
Fri
H: 54°F
L: 38°F
Sat
H: 56°F
L: 42°F
Sun
H: 66°F
L: 41°F
Mon
H: 72°F
L: 55°F
Air Quality
Nitrogen Dioxide: 7.05 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 66 μg/m3
Astronomical
Sun Transit: 12:52 AM
Sunset: 7:51 PM
Daylight: 13 hrs 58 mins
Moon Transit: 12:00 AM
Moonset: 5:01 AM
Moon Phase: Full
Moon Illumination: 99.0%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM11:42 AM - 2:12 PM
Minor Periods
6:45 PM - 8:15 PM4:31 AM - 6:01 AM
Action Rating: 5 out of 5
Flood Warning issued April 29 at 8:19PM CDT by NWS Chicago IL
Effective: Wed April 29, 2026, 8:19 PM
Expires: Thu April 30, 2026, 2:30 PM
...The Flood Warning continues for the following rivers in Illinois... Fox River at Algonquin Lock & Dam tailwater affecting Kane, McHenry and Lake IL Counties. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Fox River from Johnsburg downstream to Red Gate Road in St. Charles, including the Algonquin Lock & Dam tailwater gauge. * WHEN...Until further notice. * IMPACTS...At 11.5 feet, Residences threatened along Oceola Drive in Algonquin. A few residences threatened along McBridge Street in Elgin. Jayne Street and Beach Drive threatened in Algonquin. River Street threatened in East Dundee. Jerusha Avenue threatened in Elgin. Fox River Trail threatened between East Dundee and Elgin. * ADDITIONAL DETAILS... - At 7:30 PM CDT Wednesday the stage was 11.3 feet. - Forecast...The river is expected to continue a gradual slow fall. - Flood stage is 9.5 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 Thursday afternoon.
Flood Warning issued April 30 at 9:32AM CDT until May 5 at 1:00AM CDT by NWS Chicago IL
Effective: Thu April 30, 2026, 9:32 AM
Expires: Fri May 1, 2026, 3:45 AM
...The Flood Warning continues for the following rivers in Illinois... Fox River at Algonquin Lock & Dam tailwater affecting McHenry, Kane and Lake IL Counties. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Fox River from Johnsburg downstream to Red Gate Road in St. Charles, including the Algonquin Lock & Dam tailwater gauge. * WHEN...Until early Tuesday morning. * IMPACTS...At 11.0 feet, Structures threatened near Elgin Avenue and Corey Street south of East Dundee. Lincoln Avenue threatened in West Dundee. Filip Street and Fox River Drive threatened in Algonquin. Fox River Trail threatened south of downtown Elgin. * ADDITIONAL DETAILS... - At 8:30 AM CDT Thursday the stage was 11.1 feet. - Forecast...The river is expected to continue a gradual slow fall. - Flood stage is 9.5 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: 8.33 μg/m3
Sulphur Dioxide: 1.33 μg/m3
Ozone: 71.88 μg/m3
Astronomical
Sun Transit: 12:52 AM
Sunset: 7:51 PM
Daylight: 13 hrs 58 mins
Moon Transit: 12:00 AM
Moonset: 5:01 AM
Moon Phase: Full
Moon Illumination: 99.0%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM11:42 AM - 2:12 PM
Minor Periods
6:45 PM - 8:15 PM4:31 AM - 6:01 AM
Action Rating: 5 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 3.66 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 74.08 μg/m3
Astronomical
Sun Transit: 12:51 AM
Sunset: 7:52 PM
Daylight: 14 hrs mins
Moon Transit: 12:24 AM
Moonset: 5:25 AM
Moon Phase: Full
Moon Illumination: 100.0%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM12:27 AM - 2:57 PM
Minor Periods
7:50 PM - 9:20 PM4:55 AM - 6:25 AM
Action Rating: 4 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 5.7 μg/m3
Sulphur Dioxide: 1.09 μg/m3
Ozone: 68 μg/m3
Astronomical
Sun Transit: 12:51 AM
Sunset: 7:53 PM
Daylight: 14 hrs 3 mins
Moon Transit: 1:09 AM
Moonset: 5:53 AM
Moon Phase: Full
Moon Illumination: 98.4%
Best Times for Fishing or Hunting
Major Periods
12:39 AM - 3:09 AM1:13 PM - 3:43 PM
Minor Periods
8:54 PM - 10:24 PM5:23 AM - 6:53 AM
Action Rating: 4 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 6.49 μg/m3
Sulphur Dioxide: 1.55 μg/m3
Ozone: 80.24 μg/m3
Astronomical
Sun Transit: 12:51 AM
Sunset: 7:55 PM
Daylight: 14 hrs 5 mins
Moon Transit: 1:57 AM
Moonset: 6:26 AM
Moon Phase: Full
Moon Illumination: 94.4%
Best Times for Fishing or Hunting
Major Periods
1:27 AM - 3:57 AM2:02 PM - 4:32 PM
Minor Periods
9:56 PM - 11:26 PM5:56 AM - 7:26 AM
Action Rating: 4 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 7.23 μg/m3
Sulphur Dioxide: 1.58 μg/m3
Ozone: 77.92 μg/m3
Astronomical
Sun Transit: 12:51 AM
Sunset: 7:56 PM
Daylight: 14 hrs 7 mins
Moon Transit: 2:47 AM
Moonset: 7:06 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.0%
Best Times for Fishing or Hunting
Major Periods
2:17 AM - 4:47 AM2:53 PM - 5:23 PM
Minor Periods
12:00 AM - 12:00 AM6:36 AM - 8:06 AM
Action Rating: 2 out of 5