De Witt, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for De Witt, IL in one place.
Sunny, with a high near 91. West northwest wind around 6 mph.
Local Weather Overview
This forecast page for De Witt, 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 12, 2026 9:44 AM CDT.
The active forecast window currently covers Jul 15 to Jul 18, 2026 for De Witt, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 15 to Jul 18, 2026
- Latest sync
- Jul 12, 2026 9:44 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in De Witt
Wednesday looks like the warmest upcoming period in De Witt at 91 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 70 degrees F.
The strongest winds are forecast for Saturday at about 12 to 16 mph SW.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 12, 2026 9:44 AM CDT
- Coverage
- 4 days
- Time zone
- America/Chicago
- Forecast office
- ILX
- Radar station
- KILX
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 70.
Sunny, with a high near 89.
Mostly clear, with a low around 70.
A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 89.
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 71.
A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 89.
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 70.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Jul 15
|
Sunny
|
91°F |
6 mph
WNW
|
|
Wednesday Night
Jul 15
|
Mostly Clear
|
70°F |
6 mph
W
|
|
Thursday
Jul 16
|
Sunny
|
89°F |
5 to 8 mph
W
|
|
Thursday Night
Jul 16
|
Mostly Clear
|
70°F |
5 to 8 mph
SW
|
|
Friday
Jul 17
|
Sunny then Slight Chance Showers And Thunderstorms
|
89°F |
7 to 13 mph
SW
|
|
Friday Night
Jul 17
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
71°F |
12 mph
SSW
|
|
Saturday
Jul 18
|
Sunny then Slight Chance Showers And Thunderstorms
|
89°F |
12 to 16 mph
SW
|
|
Saturday Night
Jul 18
|
Slight Chance Showers And Thunderstorms
|
70°F |
15 mph
WSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around De Witt.