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Rochelle, IL Weather
Current conditions
Forecast for this hour (no station report in the last two hours)
Forecast
10-day-
Tonight
Partly cloudy. Low around 48, with temperatures rising to around 50 overnight. Southeast wind around 5 mph.
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Saturday
Partly sunny, with a high near 72. South southeast wind 5 to 10 mph.
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Saturday Night
Partly cloudy, with a low around 50. South southeast wind 0 to 10 mph.
National Weather Service forecast updated 11 hrs ago.
Hourly
Hourly forecast- Now54°
- Sat12 AM53°
- 1 AM52°
- 2 AM52°
- 3 AM51°
- 4 AM50°
- 5 AM50°
- 6 AM49°
- 7 AM48°
- 8 AM50°
- 9 AM55°
- 10 AM60°
- 11 AM64°
- 12 PM68°
- 1 PM70°
- 2 PM72°
- 3 PM72°
- 4 PM72°
- 5 PM71°
- 6 PM67°
- 7 PM63°
- 8 PM60°
- 9 PM58°
- 10 PM57°
Daily forecast
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Air quality
Acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.
Forecast
- FriModerate
- SatModerate
- SunModerate
Rockford, IL reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.
Sun & moon
Almanac
MonthlyRockford Area, records since 1893. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).
Nearby
- Rockford 39 km
- DeKalb 26 km
- Huntley 59 km
- Belvidere 42 km
- Loves Park 44 km
- Machesney Park 47 km
- Wasco 55 km
- Sycamore 32 km
- Dixon 35 km
- Sterling 54 km
- Village of Campton Hills 56 km
- Plano 53 km
Forecasters' discussion
From the National Weather Service office in LOT, issued 5 hrs ago
Key Messages
- Precipitation free, unseasonably warm weather will continue through this weekend, with temperatures continuing to generally run above average through next week.
- Chances for any meaningful rainfall are low through next workweek.
Discussion
Issued at 150 PM CDT Fri Oct 23 2026
Tonight through Sunday:
As of this writing, what had been a bank of extensive fog and very low clouds across Chicago's far northern suburbs this morning has finally contracted to a remaining patch near Winthrop Harbor, IL. With lake enhanced moisture evident in the Waukegan and southeast WI dew point obs, wouldn't be surprised if patchy fog sneaks back into northeastern Lake County this evening from continued light to moderate southeasterly boundary layer flow.
Another calm night is in store tonight, with the main change happening aloft in terms of strengthening southerly flow just above the nocturnal inversion. Over the southeast half or third of the area (I-88 corridor in interior Chicago metro and points southeast), flow aloft should be sufficiently weak to enable patchy shallow ground fog development. Can't completely rule out very localized dense fog, but the setup isn't nearly as favorable as this (Friday) morning. High clouds will filter in from the northwest overnight into Saturday morning, keeping overnight lows a bit milder across interior northern Illinois in particular.
On Saturday, high temperatures will likely be close to a carbon copy of today (Friday), in the lower to mid 70s. Illinois side lake cooling will be confined to the immediate shoreline during the afternoon as southerly winds back to southeast with lake influence. Following a calm and cool (relative to Saturday afternoon's warmth) Saturday night, Sunday will likely be the warmest day of this stretch unless mid and high cloud cover limits high temps a bit.
Sunday Night through Friday:
Aviation
Issued at 631 PM CDT Fri Oct 23 2026
No significant aviation forecast concerns through the period.
Surface high pressure ridge continues to move off to the east of the region early this evening, while a slow-moving cold front remains well to our west across the Plains. Locally, this will maintain a south-southeast surface wind regime tonight through Saturday. Afternoon lake breeze had pushed through ORD/MDW and GYY earlier but is now decaying after sunset. Light southeast winds overnight will turn more south or south- southeast near 10 kts on Saturday before becoming light southeast again with sunset.
VFR conditions will prevail, with only some increasing mid and high level cloud cover tonight/Saturday (bases above 15 kft).
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.