Old Mill Creek, IL Weather Forecast
Local 7-day forecast
Slight Chance Rain Showers then Partly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Old Mill Creek, IL in one place.
A slight chance of rain showers before 7am. Partly sunny. High near 65, with temperatures falling to around 62 in the afternoon. East northeast wind 10 to 15 mph. Chance of precipitation is 20%.
Local Weather Overview
This forecast page for Old Mill Creek, IL is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Sep 22, 2026 4:10 PM CDT.
The active forecast window currently covers Sep 23 to Sep 28, 2026 for Old Mill Creek, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 23 to Sep 28, 2026
- Latest sync
- Sep 22, 2026 4:10 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Old Mill Creek
Monday looks like the warmest upcoming period in Old Mill Creek at 70 degrees F.
Friday Night is the coolest period ahead with temperatures near 50 degrees F.
The strongest winds are forecast for Wednesday at about 10 to 15 mph ENE.
Precipitation is mentioned in 1 upcoming forecast period.
Forecast Details
- Last updated
- Sep 22, 2026 4:10 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- LOT
- Radar station
- KMKX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly cloudy, with a low around 53. East northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Mostly sunny, with a high near 65. East wind 5 to 10 mph.
Mostly cloudy, with a low around 52.
Mostly sunny, with a high near 64.
Partly cloudy, with a low around 50.
Mostly sunny, with a high near 64.
Mostly cloudy, with a low around 50.
Mostly cloudy, with a high near 67.
Mostly cloudy, with a low around 52.
Mostly sunny, with a high near 70.
Partly cloudy, with a low around 55.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Sep 23
|
Slight Chance Rain Showers then Partly Sunny
|
65°F |
10 to 15 mph
ENE
|
|
Wednesday Night
Sep 23
|
Mostly Cloudy
|
53°F |
5 to 10 mph
ENE
|
|
Thursday
Sep 24
|
Mostly Sunny
|
65°F |
5 to 10 mph
E
|
|
Thursday Night
Sep 24
|
Mostly Cloudy
|
52°F |
0 to 5 mph
E
|
|
Friday
Sep 25
|
Mostly Sunny
|
64°F |
0 to 5 mph
E
|
|
Friday Night
Sep 25
|
Partly Cloudy
|
50°F |
0 to 5 mph
E
|
|
Saturday
Sep 26
|
Mostly Sunny
|
64°F |
0 to 5 mph
SE
|
|
Saturday Night
Sep 26
|
Mostly Cloudy
|
50°F |
0 to 5 mph
ESE
|
|
Sunday
Sep 27
|
Mostly Cloudy
|
67°F |
0 to 5 mph
SSE
|
|
Sunday Night
Sep 27
|
Mostly Cloudy
|
52°F |
0 to 5 mph
ESE
|
|
Monday
Sep 28
|
Mostly Sunny
|
70°F |
0 to 5 mph
E
|
|
Monday Night
Sep 28
|
Partly Cloudy
|
55°F |
0 to 5 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Old Mill Creek.