Essex, IL Weather Forecast
Local 7-day forecast
Mostly Sunny then Showers And Thunderstorms Likely
Track current conditions, temperature changes, wind, and the full daily outlook for Essex, IL in one place.
Showers and thunderstorms likely after 2pm. Some of the storms could produce heavy rain. Mostly sunny. High near 90, with temperatures falling to around 85 in the afternoon. Heat index values as high as 103. West wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Local Weather Overview
This forecast page for Essex, 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 17, 2026 4:09 PM CDT.
The active forecast window currently covers Jul 18 to Jul 23, 2026 for Essex, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 18 to Jul 23, 2026
- Latest sync
- Jul 17, 2026 4:09 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Essex
Saturday looks like the warmest upcoming period in Essex at 90 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 58 degrees F.
The strongest winds are forecast for Saturday at about 5 to 15 mph W.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 17, 2026 4:09 PM CDT
- Coverage
- 6 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 showers and thunderstorms before 8pm, then patchy smoke. Partly cloudy, with a low around 65. North northeast wind 0 to 10 mph. Chance of precipitation is 30%.
Patchy smoke before 8am. Sunny, with a high near 82. East northeast wind 0 to 5 mph.
Mostly clear, with a low around 65.
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88.
A chance of showers and thunderstorms before 1am, then showers and thunderstorms likely. Partly cloudy, with a low around 72.
Showers and thunderstorms likely before 7am, then a slight chance of showers and thunderstorms between 7am and 1pm. Mostly sunny, with a high near 88.
Mostly clear, with a low around 63.
Sunny, with a high near 79.
Mostly clear, with a low around 58.
Sunny, with a high near 81.
Mostly clear, with a low around 61.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Jul 18
|
Mostly Sunny then Showers And Thunderstorms Likely
|
90°F |
5 to 15 mph
W
|
|
Saturday Night
Jul 18
|
Chance Showers And Thunderstorms then Patchy Smoke
|
65°F |
0 to 10 mph
NNE
|
|
Sunday
Jul 19
|
Patchy Smoke then Sunny
|
82°F |
0 to 5 mph
ENE
|
|
Sunday Night
Jul 19
|
Mostly Clear
|
65°F |
0 mph
|
|
Monday
Jul 20
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
88°F |
5 to 10 mph
S
|
|
Monday Night
Jul 20
|
Chance Showers And Thunderstorms
|
72°F |
10 mph
SW
|
|
Tuesday
Jul 21
|
Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms
|
88°F |
10 to 15 mph
WNW
|
|
Tuesday Night
Jul 21
|
Mostly Clear
|
63°F |
5 to 10 mph
NW
|
|
Wednesday
Jul 22
|
Sunny
|
79°F |
5 to 10 mph
NNW
|
|
Wednesday Night
Jul 22
|
Mostly Clear
|
58°F |
0 to 5 mph
NW
|
|
Thursday
Jul 23
|
Sunny
|
81°F |
0 mph
|
|
Thursday Night
Jul 23
|
Mostly Clear
|
61°F |
0 mph
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Essex.