Weather for Wilmington, Illinois
Current Weather
Five Day Weather Forecast
Wed
H: 68°F
L: 45°F
Thu
H: 56°F
L: 37°F
Fri
H: 43°F
L: 31°F
Sat
H: 37°F
L: 25°F
Sun
H: 32°F
L: 23°F
Air Quality
Nitrogen Dioxide: 3.95 μg/m3
Sulphur Dioxide: 2.05 μg/m3
Ozone: 78 μg/m3
Astronomical
Sun Transit: 12:06 AM
Sunset: 5:30 PM
Daylight: 10 hrs 47 mins
Moon Transit: 12:00 AM
Moonset: 7:04 PM
Moon Phase: New
Moon Illumination: 1.3%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM12:27 AM - 2:57 AM
Minor Periods
6:34 PM - 8:04 PM6:48 AM - 8:18 AM
Action Rating: 4 out of 5
Fire Weather Watch issued February 17 at 1:45PM CST until February 18 at 8:00PM CST by NWS Chicago IL
Effective: Tue February 17, 2026, 1:45 PM
Expires: Tue February 17, 2026, 9:45 PM
...A FIRE WEATHER WATCH IS IN EFFECT FOR WEDNESDAY... The combination of unseasonably warm temperatures (highs in the 60s), dry conditions (RH values around 15-25%), and gusty west- southwest winds (gusting around 35-40 mph) will lead to an elevated fire danger on Wednesday. While fuel moistures may be more questionable in some areas, local fire agencies indicate that finer fuels are primed and could lead to rapid fire spread in these conditions. For this reason, a Fire Weather Watch has been issued for portions of northern Illinois on Wednesday. Confidence in Red Flag Warning criteria being met is currently highest along and north of Interstate 88. The National Weather Service in Chicago has issued a Fire Weather Watch, which is in effect from Wednesday morning through Wednesday evening. * Affected Area...Winnebago, Boone, McHenry, Lake IL, Ogle, Lee, De Kalb, Kane, DuPage, Cook, La Salle, Kendall, Grundy and Will. * Timing...From Wednesday morning through Wednesday evening. * Winds...Southwest 15 to 25 mph with gusts up to 40 mph. * Relative Humidity...As low as 15 percent. * Impacts...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended.
A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.
Fire Weather Watch issued February 17 at 9:32PM CST until February 18 at 8:00PM CST by NWS Chicago IL
Effective: Tue February 17, 2026, 9:32 PM
Expires: Wed February 18, 2026, 5:45 AM
...A FIRE WEATHER WATCH IS IN EFFECT FOR WEDNESDAY... The combination of unseasonably warm temperatures (highs in the 60s), dry conditions (RH values around 15-25%), and gusty west- southwest winds (gusting around 35-40 mph) will lead to an elevated fire danger on Wednesday. While fuel moistures may be more questionable in some areas, local fire agencies indicate that finer fuels are primed and could lead to rapid fire spread in these conditions. For this reason, a Fire Weather Watch has been issued for portions of northern Illinois on Wednesday. Confidence in Red Flag Warning criteria being met is currently highest along and north of Interstate 88. * Affected Area...Winnebago, Boone, McHenry, Lake IL, Ogle, Lee, De Kalb, Kane, DuPage, Cook, La Salle, Kendall, Grundy and Will. * Timing...From 9 AM CST Wednesday through Wednesday evening. * Winds...Southwest 15 to 25 mph with gusts up to 40 to 45 mph. * Relative Humidity...As low as 15 percent. * Impacts...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended.
A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.
Weather Forecast
Air Quality
Nitrogen Dioxide: 4.15 μg/m3
Sulphur Dioxide: 2.66 μg/m3
Ozone: 79.16 μg/m3
Astronomical
Sun Transit: 12:06 AM
Sunset: 5:30 PM
Daylight: 10 hrs 47 mins
Moon Transit: 12:00 AM
Moonset: 7:04 PM
Moon Phase: New
Moon Illumination: 1.3%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM12:27 AM - 2:57 AM
Minor Periods
6:34 PM - 8:04 PM6:48 AM - 8:18 AM
Action Rating: 4 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 8.87 μg/m3
Sulphur Dioxide: 4.49 μg/m3
Ozone: 63.64 μg/m3
Astronomical
Sun Transit: 12:06 AM
Sunset: 5:31 PM
Daylight: 10 hrs 49 mins
Moon Transit: 3:07 PM
Moonset: 8:15 PM
Moon Phase: Waxing Crescent
Moon Illumination: 5.2%
Best Times for Fishing or Hunting
Major Periods
1:13 AM - 3:43 AM2:37 PM - 5:07 PM
Minor Periods
7:45 PM - 9:15 PM7:10 AM - 8:40 AM
Action Rating: 4 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 6.92 μg/m3
Sulphur Dioxide: 3.85 μg/m3
Ozone: 55.44 μg/m3
Astronomical
Sun Transit: 12:06 AM
Sunset: 5:33 PM
Daylight: 10 hrs 52 mins
Moon Transit: 2:37 PM
Moonset: 9:27 PM
Moon Phase: Waxing Crescent
Moon Illumination: 11.3%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM2:07 PM - 4:37 PM
Minor Periods
8:57 PM - 10:27 PM7:32 AM - 9:02 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 9.23 μg/m3
Sulphur Dioxide: 3.07 μg/m3
Ozone: 53.85 μg/m3
Astronomical
Sun Transit: 12:06 AM
Sunset: 5:34 PM
Daylight: 10 hrs 55 mins
Moon Transit: 3:26 PM
Moonset: 10:42 PM
Moon Phase: Waxing Crescent
Moon Illumination: 19.4%
Best Times for Fishing or Hunting
Major Periods
2:46 AM - 5:16 AM2:56 PM - 5:26 PM
Minor Periods
10:12 PM - 11:42 PM7:56 AM - 9:26 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3
Astronomical
Sun Transit: 12:06 AM
Sunset: 5:35 PM
Daylight: 10 hrs 57 mins
Moon Transit: 4:19 PM
Moonset: 11:58 PM
Moon Phase: Waxing Crescent
Moon Illumination: 29.1%
Best Times for Fishing or Hunting
Major Periods
3:37 AM - 6:07 AM3:49 PM - 6:19 PM
Minor Periods
12:00 AM - 12:00 AM8:24 AM - 9:54 AM
Action Rating: 2 out of 5