Duncan, MS Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Duncan, MS in one place.
Sunny, with a high near 100. Heat index values as high as 104. North northeast wind 0 to 5 mph.
Local Weather Overview
This forecast page for Duncan, MS 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 17, 2026 6:23 PM CDT.
The active forecast window currently covers Sep 18 to Sep 23, 2026 for Duncan, MS.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 18 to Sep 23, 2026
- Latest sync
- Sep 17, 2026 6:23 PM CDT
- Forecast office
- JAN
- Source
- NOAA / NWS
Daily Outlook
This Week in Duncan
Saturday looks like the warmest upcoming period in Duncan at 101 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 68 degrees F.
The strongest winds are forecast for Wednesday at about 5 to 10 mph NE.
The forecast from Sep 18 through Sep 23 stays mostly dry.
Forecast Details
- Last updated
- Sep 17, 2026 6:23 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- JAN
- Radar station
- KLZK
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 74. Heat index values as high as 100. South southwest wind around 0 mph.
Sunny, with a high near 101. West southwest wind 0 to 5 mph.
Mostly clear, with a low around 73. Southwest wind around 0 mph.
Sunny, with a high near 100. West wind 0 to 5 mph.
Mostly clear, with a low around 74. Southwest wind around 0 mph.
Mostly sunny, with a high near 100. West southwest wind 0 to 5 mph.
Partly cloudy, with a low around 73.
Mostly sunny, with a high near 97.
Mostly clear, with a low around 70.
Sunny, with a high near 94.
Mostly clear, with a low around 68.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Sep 18
|
Sunny
|
100°F |
0 to 5 mph
NNE
|
|
Friday Night
Sep 18
|
Mostly Clear
|
74°F |
0 mph
|
|
Saturday
Sep 19
|
Sunny
|
101°F |
0 to 5 mph
WSW
|
|
Saturday Night
Sep 19
|
Mostly Clear
|
73°F |
0 mph
|
|
Sunday
Sep 20
|
Sunny
|
100°F |
0 to 5 mph
W
|
|
Sunday Night
Sep 20
|
Mostly Clear
|
74°F |
0 mph
|
|
Monday
Sep 21
|
Mostly Sunny
|
100°F |
0 to 5 mph
WSW
|
|
Monday Night
Sep 21
|
Partly Cloudy
|
73°F |
0 mph
|
|
Tuesday
Sep 22
|
Mostly Sunny
|
97°F |
0 to 5 mph
N
|
|
Tuesday Night
Sep 22
|
Mostly Clear
|
70°F |
5 mph
NE
|
|
Wednesday
Sep 23
|
Sunny
|
94°F |
5 to 10 mph
NE
|
|
Wednesday Night
Sep 23
|
Mostly Clear
|
68°F |
5 to 10 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Duncan.