Romeoville, IL Weather

Will County10:00 PM CDT41.65°N, 88.09°WElevation 620 ft

Current conditions

Mostly Clear
56°
Mostly Clear
Feels like 56°
High 74° Sunday·Low 48° tonight
WindSSE 5 mph
Humidity69%
Dew point46°
Cloud cover25%
UV index0 Low
Sunrise7:15 AM
Sunset5:59 PM

Forecast for this hour (no station report in the last two hours)

Forecast

10-day

  • Tonight

    Partly cloudy, with a low around 48. South southeast wind 0 to 5 mph.

  • Sunday

    Mostly sunny. High near 74, with temperatures falling to around 72 in the afternoon. South wind 0 to 5 mph.

  • Sunday Night

    Partly cloudy, with a low around 50. South southeast wind around 5 mph.

National Weather Service forecast updated 7 hrs ago.

Hourly

Hourly forecast
  1. Now Mostly Clear 56°
  2. 11 PM Mostly Clear 55°
  3. Sun12 AM Mostly Clear 54°
  4. 1 AM Mostly Clear 53°
  5. 2 AM Partly Cloudy 52°
  6. 3 AM Partly Cloudy 51°
  7. 4 AM Partly Cloudy 50°
  8. 5 AM Partly Cloudy 49°
  9. 6 AM Mostly Sunny 48°
  10. 7 AM Mostly Sunny 48°
  11. 8 AM Mostly Sunny 50°
  12. 9 AM Mostly Sunny 55°
  13. 10 AM Mostly Sunny 61°
  14. 11 AM Mostly Sunny 65°
  15. 12 PM Mostly Sunny 69°
  16. 1 PM Mostly Sunny 71°
  17. 2 PM Mostly Sunny 73°
  18. 3 PM Mostly Sunny 74°
  19. 4 PM Mostly Sunny 74°
  20. 5 PM Mostly Sunny 72°
  21. 6 PM Partly Cloudy 68°
  22. 7 PM Partly Cloudy 63°
  23. 8 PM Partly Cloudy 60°
  24. 9 PM Partly Cloudy 59°

10-day forecast

Details
  1. TodayOct 24 Mostly Sunny Mostly Sunny48°72°
  2. SunOct 25 Mostly Sunny Mostly Sunny50°74°
  3. MonOct 26 Partly Sunny Partly Sunny48°68°
  4. TueOct 27 Partly Sunny Partly Sunny54°71°
  5. WedOct 28 Mostly Sunny Mostly Sunny56°74°
  6. ThuOct 29 Slight Chance Rain Showers Slight Chance Rain Showers19%54°75°
  7. FriOct 30 Partly Sunny Partly Sunny14%56°74°
  8. SatOct 31 Cloudy Cloudy55°69°
  9. SunNov 1 Heavy rain Heavy rain0.62 in59°64°
  10. MonNov 2 Heavy rain Heavy rain0.93 in60°67°

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

Radar

Full map
Open the National Weather Service radar (the map here needs JavaScript).

Weather news near Romeoville

More weather news

Air quality

68
Moderate
Fine particles (PM2.5)

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

Forecast

  • SatModerate
  • SunModerate
  • MonModerate

South and West Suburbs (Chicago), IL reporting area · 2 hrs ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.

Sun & moon

Sunrise 7:15 AM
Sunset 5:59 PM
Daylight 10 h 43 min (−2 min 36 s tomorrow)
Waxing Gibbous · 98% lit
Moonrise 4:51 PM Moonset 5:29 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low59° / 40°
Yesterday74° / 47°, <0.01 in
Month to date3.76 in (normal 2.76 in)

Aurora Water, records since 1887. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in LOT, issued 3 hrs ago

Key Messages

- Generally well above normal temperatures will continue, albeit with a modest cool-down on Monday near and north of I-80, and particularly near Lake Michigan.

- There are periodic low/uncertain rain chances in the mid to late workweek period, with the best chance of any meaningful rainfall not until next Saturday (Halloween) night.

Discussion

Issued at 225 PM CDT Sat Oct 24 2026

Tonight through Sunday:

Following a calm, cool, and partly cloudy night tonight (relative to this afternoon's warmth), Sunday has a decent chance to be one of the warmest days of this current stretch. Mid and higher level cloud cover may limit temps from really overperforming, though currently expecting enough sun for widespread mid 70s highs away from the immediate Illinois shore. Localized upper 70s readings are plausible, especially over southwestern sections of the CWA (ie. in/near Pontiac).

Sunday Night through Saturday:

A backdoor cold front will move across the area Sunday night, knocking temps down vs. the weekend for Monday's highs, but still above average for late October. The coolest readings (around 60F/low 60s) will be found near Lake Michigan due to strengthening north-northeast winds. Expansive surface high pressure over the region on Monday night will likely yield the coolest night of the week (still solidly above normal for late October).

Tuesday will warm back to farther above average, followed by another period of well above average temps (highs approaching 80F in spots?!) centered on midweek. Chances for rain mid to late next week, while not zero, are low/nebulous, and the best chance for anything of note looks to be confined to primarily west and north of the local area. If a weakening cold front is able to push south across at least the northern half of the area Thursday-Thursday night, that would result in lower temps than in the official forecast (especially near the lake).

Aviation

Issued at 613 PM CDT Sat Oct 24 2026

Quiet VFR aviation weather conditions will persist through the period. Winds are becoming light southeast with sunset, and will remain generally southeast through the night. Winds will likely become light south (~5 kt or less) pre-dawn, then shift south- southwest to southwest (190-210 deg) just under 10 kts after sunrise.

Patchy mid/high level VFR clouds will linger across the area through Sunday.

Ratzer

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 4Search index and reflects what the press published. Terms of use.