Duncan, AR Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Duncan, AR in one place.
Sunny, with a high near 103. Heat index values as high as 109. South southeast wind around 5 mph.
Local Weather Overview
This forecast page for Duncan, AR 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 15, 2026 3:16 AM CDT.
The active forecast window currently covers Sep 16 to Sep 21, 2026 for Duncan, AR.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 16 to Sep 21, 2026
- Latest sync
- Sep 15, 2026 3:16 AM CDT
- Forecast office
- LZK
- Source
- NOAA / NWS
Daily Outlook
This Week in Duncan
Wednesday looks like the warmest upcoming period in Duncan at 103 degrees F.
Thursday Night is the coolest period ahead with temperatures near 74 degrees F.
The strongest winds are forecast for Wednesday at about 5 mph SSE.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 15, 2026 3:16 AM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- LZK
- 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 76. South southeast wind 0 to 5 mph.
Sunny, with a high near 102. South wind 0 to 5 mph.
Mostly clear, with a low around 74. Southeast wind 0 to 5 mph.
Sunny, with a high near 103. Southeast wind 0 to 5 mph.
Mostly clear, with a low around 74. South southeast wind 0 to 5 mph.
Sunny, with a high near 102.
Mostly clear, with a low around 75.
A slight chance of rain showers after 1pm. Mostly sunny, with a high near 99. Chance of precipitation is 20%.
A slight chance of rain showers. Partly cloudy, with a low around 74. Chance of precipitation is 20%.
A slight chance of rain showers before 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 95.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Sep 16
|
Sunny
|
103°F |
5 mph
SSE
|
|
Wednesday Night
Sep 16
|
Mostly Clear
|
76°F |
0 to 5 mph
SSE
|
|
Thursday
Sep 17
|
Sunny
|
102°F |
0 to 5 mph
S
|
|
Thursday Night
Sep 17
|
Mostly Clear
|
74°F |
0 to 5 mph
SE
|
|
Friday
Sep 18
|
Sunny
|
103°F |
0 to 5 mph
SE
|
|
Friday Night
Sep 18
|
Mostly Clear
|
74°F |
0 to 5 mph
SSE
|
|
Saturday
Sep 19
|
Sunny
|
102°F |
0 to 5 mph
S
|
|
Saturday Night
Sep 19
|
Mostly Clear
|
75°F |
5 mph
S
|
|
Sunday
Sep 20
|
Mostly Sunny then Slight Chance Rain Showers
|
99°F |
5 mph
SSE
|
|
Sunday Night
Sep 20
|
Slight Chance Rain Showers
|
74°F |
5 mph
SSE
|
|
Monday
Sep 21
|
Chance Showers And Thunderstorms
|
95°F |
0 to 5 mph
SSE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Duncan.