Glen Ellyn, IL 60138 Weather

DuPage County1:51 AM CDT41.88°N, 88.07°W

Current conditions

Clear
48°
Clear
Feels like 48°
High 72°·Low 48° tonight
WindCalm
Humidity93%
Dew point46°
Pressure30.23 inHg
Visibility10 mi
Cloud cover0%
UV index0 Low
Sunrise7:13 AM
Sunset6:02 PM

Observed at Chicago / West Chicago, Dupage Airport · 36 min ago

Forecast

10-day

  • Tonight

    Patchy fog after 3am. Clear, with a low around 48. West southwest wind around 0 mph.

  • Thursday

    Patchy fog before 9am. Sunny. High near 72, with temperatures falling to around 70 in the afternoon. North northeast wind 0 to 5 mph.

  • Thursday Night

    Mostly clear, with a low around 48. East northeast wind 0 to 5 mph.

National Weather Service forecast updated 9 hrs ago.

Hourly

Hourly forecast
  1. Now Clear 53°
  2. 2 AM Clear 52°
  3. 3 AM Patchy Fog 51°
  4. 4 AM Patchy Fog 50°
  5. 5 AM Patchy Fog 49°
  6. 6 AM Patchy Fog 49°
  7. 7 AM Patchy Fog 49°
  8. 8 AM Patchy Fog 50°
  9. 9 AM Sunny 54°
  10. 10 AM Sunny 61°
  11. 11 AM Sunny 65°
  12. 12 PM Sunny 68°
  13. 1 PM Sunny 70°
  14. 2 PM Sunny 71°
  15. 3 PM Sunny 71°
  16. 4 PM Sunny 71°
  17. 5 PM Sunny 70°
  18. 6 PM Mostly Clear 67°
  19. 7 PM Mostly Clear 62°
  20. 8 PM Mostly Clear 59°
  21. 9 PM Partly Cloudy 57°
  22. 10 PM Partly Cloudy 55°
  23. 11 PM Partly Cloudy 54°
  24. Fri12 AM Partly Cloudy 53°

10-day forecast

Details
  1. TonightOct 21 Clear then Patchy Fog Clear then Patchy Fog48°
  2. TodayOct 22 Patchy Fog then Sunny Patchy Fog then Sunny48°72°
  3. FriOct 23 Mostly Sunny Mostly Sunny50°71°
  4. SatOct 24 Mostly Sunny Mostly Sunny52°70°
  5. SunOct 25 Partly Sunny Partly Sunny52°72°
  6. MonOct 26 Partly Sunny Partly Sunny50°68°
  7. TueOct 27 Slight Chance Rain Showers Slight Chance Rain Showers18%46°62°
  8. WedOct 28 Partly Sunny Partly Sunny13%64°
  9. ThuOct 29 Cloudy Cloudy38°56°
  10. FriOct 30 Cloudy Cloudy42°57°

Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.

Radar

Full map
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Weather news near Glen Ellyn

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Air quality

82
Moderate
Fine particles (PM2.5)

Acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Forecast

  • ThuModerate
  • FriModerate

South and West Suburbs (Chicago), IL reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.

Sun & moon

Sunrise 7:13 AM
Sunset 6:02 PM
Daylight 10 h 48 min (−2 min 38 s tomorrow)
Waxing Gibbous · 83% lit
Moonrise 4:07 PM Moonset 3:15 AM
Full moon Oct 26 New moon Nov 9

Nearby

Forecasters' discussion

From the National Weather Service office in LOT, issued 1 hr ago

Key Messages

- The dry and unseasonably mild weather will continue through the upcoming weekend.

Discussion

Issued at 136 PM CDT Wed Oct 21 2026

An anomalously strong mid-level ridge over the central CONUS will anchor omega blocking across much of North America over the next several days. Meanwhile, an elongated surface ridge extending from the Lower Mississippi River Valley to the Canadian Maritimes is in the processes of congealing with another expansive high pressure shifting toward the Upper Great Lakes. As a result, quiet weather with unseasonably warm conditions will continue through the upcoming weekend. As was observed the past few mornings, generally clear skies and light/calm winds should promote shallow fog across primarily interior northern Illinois late tonight through sunrise Thursday.

The blocking pattern will slowly break down early next week as the ridge flattens and a southwestern upper-level low begins to meander toward the central CONUS. A series of smaller troughs on the periphery of a developing longwave trough across the north Pacific and western Canada will eventually pick up the southwestern low. Consensus guidance suggests that the influence of the low on our area could occur as early as Monday night, but more likely Tuesday and Wednesday. Cooler and more seasonable conditions would accompany this system.

Kluber

Aviation

Issued at 1154 PM CDT Wed Oct 21 2026

- Brief period of some shallow ground fog possible early this morning, primarily at RFD and GYY - There's around a 30% chance of dense fog adjacent to the lake into mainly northeast IL tonight.

Surface dewpoint depressions are generally running several degrees larger than last night at ORD, DPA, and MDW, so potential for VSBY restrictions at those terminals this morning is more more limited. Maintained TEMPOs for IFR/low end MVFR VSBY at GYY and RFD where dewpoint depressions are smaller and on pace with last night. If and where any VSBY restrictions occur early this morning, conditions would likely return to VFR by around 14z.

Calm to very light northeast winds will be the rule today, which should allow for a lake breeze to move inland. Behind this lake breeze, northeast winds of 5-9kt are likely at ORD, MDW, and GYY. An increase in moisture behind this lake breeze opens the door to a potential dense fog problem over primarily northeast IL tonight. Confidence is low, so held off on introducing anything into the TAFs now, but there is probably around 30% chance of LIFR/VLIFR conditions into ORD, MDW, and possibly GYY and DPA.

- Izzi

Lot Watches

IL...None. IN...None. LM...None.

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Conservative index and reflects what the press published. Terms of use.