Shannon, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Shannon, IL in one place.
Sunny, with a high near 93.
Local Weather Overview
This forecast page for Shannon, 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 8:24 AM CDT.
The active forecast window currently covers Jul 14 to Jul 18, 2026 for Shannon, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 14 to Jul 18, 2026
- Latest sync
- Jul 12, 2026 8:24 AM CDT
- Forecast office
- DVN
- Source
- NOAA / NWS
Daily Outlook
This Week in Shannon
Tuesday looks like the warmest upcoming period in Shannon at 93 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 69 degrees F.
The strongest winds are forecast for Saturday at about 10 to 15 mph SW.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 12, 2026 8:24 AM CDT
- Coverage
- 5 days
- Time zone
- America/Chicago
- Forecast office
- DVN
- Radar station
- KDVN
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 71.
Sunny, with a high near 92.
Mostly clear, with a low around 69.
Sunny, with a high near 90.
Mostly clear, with a low around 70.
A slight chance of showers and thunderstorms between 7am and 1pm. Mostly sunny, with a high near 90.
Partly cloudy, with a low around 71.
Mostly sunny, with a high near 89.
A slight chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 69.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jul 14
|
Sunny
|
93°F |
5 mph
NW
|
|
Tuesday Night
Jul 14
|
Mostly Clear
|
71°F |
5 mph
W
|
|
Wednesday
Jul 15
|
Sunny
|
92°F |
5 mph
NW
|
|
Wednesday Night
Jul 15
|
Mostly Clear
|
69°F |
5 mph
N
|
|
Thursday
Jul 16
|
Sunny
|
90°F |
5 mph
SW
|
|
Thursday Night
Jul 16
|
Mostly Clear
|
70°F |
5 mph
SW
|
|
Friday
Jul 17
|
Slight Chance Showers And Thunderstorms
|
90°F |
5 to 10 mph
S
|
|
Friday Night
Jul 17
|
Partly Cloudy
|
71°F |
10 mph
S
|
|
Saturday
Jul 18
|
Mostly Sunny
|
89°F |
10 to 15 mph
SW
|
|
Saturday Night
Jul 18
|
Slight Chance Showers And Thunderstorms
|
69°F |
10 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Shannon.