Duncanville, TX Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Duncanville, TX in one place.
Mostly sunny, with a high near 99. Heat index values as high as 103. South southeast wind around 5 mph.
Local Weather Overview
This forecast page for Duncanville, TX 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 16, 2026 10:48 PM CDT.
The active forecast window currently covers Sep 17 to Sep 23, 2026 for Duncanville, TX.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 17 to Sep 23, 2026
- Latest sync
- Sep 16, 2026 10:48 PM CDT
- Forecast office
- FWD
- Source
- NOAA / NWS
Daily Outlook
This Week in Duncanville
Thursday looks like the warmest upcoming period in Duncanville at 99 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 72 degrees F.
The strongest winds are forecast for Thursday Night at about 5 to 10 mph SSE.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 16, 2026 10:48 PM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- FWD
- Radar station
- KFWS
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear. Low around 76, with temperatures rising to around 78 overnight. Heat index values as high as 100. South southeast wind 5 to 10 mph.
Sunny. High near 99, with temperatures falling to around 97 in the afternoon. Heat index values as high as 100. South wind 0 to 5 mph.
Mostly clear. Low around 75, with temperatures rising to around 77 overnight. South wind around 5 mph.
Sunny. High near 99, with temperatures falling to around 97 in the afternoon. South wind 5 to 10 mph, with gusts as high as 20 mph.
Clear, with a low around 75. South wind around 10 mph.
Sunny, with a high near 99. South wind 5 to 10 mph.
A slight chance of rain showers after 1am. Partly cloudy, with a low around 75. South southeast wind 5 to 10 mph. Chance of precipitation is 20%.
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 95. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Partly cloudy, with a low around 73. Chance of precipitation is 30%.
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 94. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 72. Chance of precipitation is 30%.
Mostly sunny, with a high near 95.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Sep 17
|
Mostly Sunny
|
99°F |
5 mph
SSE
|
|
Thursday Night
Sep 17
|
Mostly Clear
|
76°F |
5 to 10 mph
SSE
|
|
Friday
Sep 18
|
Sunny
|
99°F |
0 to 5 mph
S
|
|
Friday Night
Sep 18
|
Mostly Clear
|
75°F |
5 mph
S
|
|
Saturday
Sep 19
|
Sunny
|
99°F |
5 to 10 mph
S
|
|
Saturday Night
Sep 19
|
Clear
|
75°F |
10 mph
S
|
|
Sunday
Sep 20
|
Sunny
|
99°F |
5 to 10 mph
S
|
|
Sunday Night
Sep 20
|
Partly Cloudy then Slight Chance Rain Showers
|
75°F |
5 to 10 mph
SSE
|
|
Monday
Sep 21
|
Chance Rain Showers
|
95°F |
5 mph
S
|
|
Monday Night
Sep 21
|
Chance Showers And Thunderstorms
|
73°F |
5 mph
SSE
|
|
Tuesday
Sep 22
|
Chance Rain Showers
|
94°F |
5 mph
SSE
|
|
Tuesday Night
Sep 22
|
Chance Showers And Thunderstorms
|
72°F |
5 mph
ESE
|
|
Wednesday
Sep 23
|
Mostly Sunny
|
95°F |
5 mph
E
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Duncanville.