Darien, IL Weather Forecast
Local 7-day forecast
Patchy Fog
Track current conditions, temperature changes, wind, and the full daily outlook for Darien, IL in one place.
Patchy fog and showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy. High near 68, with temperatures falling to around 64 in the afternoon. North northeast wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between 2 and 3 inches possible.
Local Weather Overview
This forecast page for Darien, 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 19, 2026 11:18 PM CDT.
The active forecast window currently covers Sep 20 to Sep 26, 2026 for Darien, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 20 to Sep 26, 2026
- Latest sync
- Sep 19, 2026 11:18 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Darien
Saturday looks like the warmest upcoming period in Darien at 74 degrees F.
Monday Night is the coolest period ahead with temperatures near 54 degrees F.
The strongest winds are forecast for Sunday at about 10 to 15 mph NNE.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 19, 2026 11:18 PM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- LOT
- Radar station
- KLOT
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of rain showers. Mostly cloudy, with a low around 58. Northeast wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of rain showers. Mostly cloudy, with a high near 64. East northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
A chance of rain showers. Cloudy, with a low around 54. East northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
A chance of rain showers. Mostly cloudy, with a high near 62. Chance of precipitation is 30%.
A slight chance of rain showers before 7pm. Mostly cloudy, with a low around 54.
Mostly cloudy, with a high near 64.
Mostly cloudy, with a low around 55.
Partly sunny, with a high near 67.
Mostly cloudy, with a low around 56.
Partly sunny, with a high near 71.
Partly cloudy, with a low around 56.
Mostly sunny, with a high near 74.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
Sep 20
|
Patchy Fog
|
68°F |
10 to 15 mph
NNE
|
|
Sunday Night
Sep 20
|
Chance Rain Showers
|
58°F |
15 mph
NE
|
|
Monday
Sep 21
|
Chance Rain Showers
|
64°F |
15 mph
ENE
|
|
Monday Night
Sep 21
|
Chance Rain Showers
|
54°F |
10 to 15 mph
ENE
|
|
Tuesday
Sep 22
|
Chance Rain Showers
|
62°F |
10 to 15 mph
NE
|
|
Tuesday Night
Sep 22
|
Slight Chance Rain Showers then Mostly Cloudy
|
54°F |
10 to 15 mph
NE
|
|
Wednesday
Sep 23
|
Mostly Cloudy
|
64°F |
10 mph
NE
|
|
Wednesday Night
Sep 23
|
Mostly Cloudy
|
55°F |
5 to 10 mph
NE
|
|
Thursday
Sep 24
|
Partly Sunny
|
67°F |
5 to 10 mph
NE
|
|
Thursday Night
Sep 24
|
Mostly Cloudy
|
56°F |
5 mph
NE
|
|
Friday
Sep 25
|
Partly Sunny
|
71°F |
5 to 10 mph
NE
|
|
Friday Night
Sep 25
|
Partly Cloudy
|
56°F |
0 to 5 mph
NE
|
|
Saturday
Sep 26
|
Mostly Sunny
|
74°F |
0 to 5 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Darien.
