Old Mill Creek, IL Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Old Mill Creek, IL in one place.
Mostly sunny, with a high near 81. South wind 0 to 10 mph.
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: Jul 23, 2026 5:25 PM CDT.
The active forecast window currently covers Jul 24 to Jul 29, 2026 for Old Mill Creek, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 24 to Jul 29, 2026
- Latest sync
- Jul 23, 2026 5:25 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 93 degrees F.
Friday Night is the coolest period ahead with temperatures near 61 degrees F.
The strongest winds are forecast for Monday at about 5 to 15 mph WSW.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 23, 2026 5:25 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 clear, with a low around 61. South wind 5 to 10 mph.
Partly sunny, with a high near 84. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Partly cloudy, with a low around 68.
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 72.
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 93.
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 68.
Mostly sunny, with a high near 86.
Partly cloudy, with a low around 64.
A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 82.
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 64.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Jul 24
|
Mostly Sunny
|
81°F |
0 to 10 mph
S
|
|
Friday Night
Jul 24
|
Mostly Clear
|
61°F |
5 to 10 mph
S
|
|
Saturday
Jul 25
|
Partly Sunny
|
84°F |
5 to 10 mph
SW
|
|
Saturday Night
Jul 25
|
Partly Cloudy
|
68°F |
5 to 10 mph
WSW
|
|
Sunday
Jul 26
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
91°F |
5 to 10 mph
WSW
|
|
Sunday Night
Jul 26
|
Chance Showers And Thunderstorms
|
72°F |
5 to 10 mph
SW
|
|
Monday
Jul 27
|
Chance Showers And Thunderstorms
|
93°F |
5 to 15 mph
WSW
|
|
Monday Night
Jul 27
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
68°F |
5 to 15 mph
NW
|
|
Tuesday
Jul 28
|
Mostly Sunny
|
86°F |
5 to 10 mph
NNE
|
|
Tuesday Night
Jul 28
|
Partly Cloudy
|
64°F |
0 to 10 mph
NE
|
|
Wednesday
Jul 29
|
Sunny then Slight Chance Showers And Thunderstorms
|
82°F |
0 to 10 mph
ENE
|
|
Wednesday Night
Jul 29
|
Slight Chance Showers And Thunderstorms
|
64°F |
0 to 5 mph
NNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Old Mill Creek.