Dupo, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Dupo, IL in one place.
Sunny, with a high near 61. North wind 2 to 6 mph.
Local Weather Overview
This forecast page for Dupo, 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: Oct 16, 2026 10:36 PM CDT.
The active forecast window currently covers Oct 17 to Oct 23, 2026 for Dupo, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 17 to Oct 23, 2026
- Latest sync
- Oct 16, 2026 10:36 PM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Dupo
Friday looks like the warmest upcoming period in Dupo at 82 degrees F.
Saturday Night is the coolest period ahead with temperatures near 36 degrees F.
The strongest winds are forecast for Saturday at about 2 to 6 mph N.
The forecast from Oct 17 through Oct 23 stays mostly dry.
Forecast Details
- Last updated
- Oct 16, 2026 10:36 PM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- LSX
- Radar station
- KLSX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Clear, with a low around 36. East wind around 2 mph.
Sunny, with a high near 66. Southeast wind 1 to 6 mph.
Clear, with a low around 38. Southeast wind 0 to 3 mph.
Sunny, with a high near 72.
Mostly clear, with a low around 41.
Sunny, with a high near 75.
Mostly clear, with a low around 43.
Sunny, with a high near 77.
Clear, with a low around 46.
Sunny, with a high near 80.
Mostly clear, with a low around 50.
Sunny, with a high near 82.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Oct 17
|
Sunny
|
61°F |
2 to 6 mph
N
|
|
Saturday Night
Oct 17
|
Clear
|
36°F |
2 mph
E
|
|
Sunday
Oct 18
|
Sunny
|
66°F |
1 to 6 mph
SE
|
|
Sunday Night
Oct 18
|
Clear
|
38°F |
0 to 3 mph
SE
|
|
Monday
Oct 19
|
Sunny
|
72°F |
2 mph
E
|
|
Monday Night
Oct 19
|
Mostly Clear
|
41°F |
2 mph
E
|
|
Tuesday
Oct 20
|
Sunny
|
75°F |
2 mph
E
|
|
Tuesday Night
Oct 20
|
Mostly Clear
|
43°F |
2 mph
NE
|
|
Wednesday
Oct 21
|
Sunny
|
77°F |
2 mph
NE
|
|
Wednesday Night
Oct 21
|
Clear
|
46°F |
1 mph
NE
|
|
Thursday
Oct 22
|
Sunny
|
80°F |
2 mph
SE
|
|
Thursday Night
Oct 22
|
Mostly Clear
|
50°F |
2 mph
E
|
|
Friday
Oct 23
|
Sunny
|
82°F |
0 to 3 mph
E
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Dupo.