Dallas County, TX Weather Forecast
County weather hub
Mostly Cloudy
Compare major city weather across Dallas County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Mostly cloudy. Low around 72, with temperatures rising to around 74 overnight. South wind 10 to 15 mph, with gusts as high as 25 mph.
County Weather Overview
This county weather page brings together forecast coverage for Dallas County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 24 of 24 mapped cities in Dallas County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- May 17 to May 23, 2026
- Latest sync
- May 17, 2026 3:18 AM CDT
- Forecast office
- FWD
- Source
- NOAA / NWS
Daily Outlook
This Week in Dallas County
Monday looks like the warmest upcoming period in Dallas County at 91 degrees F.
Thursday Night is the coolest period ahead with temperatures near 65 degrees F.
The strongest winds are forecast for Sunday at about 10 to 20 mph S.
Precipitation is mentioned in 13 upcoming forecast periods.
Forecast Details
- Last updated
- May 17, 2026 3:18 AM 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
A slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 90. Heat index values as high as 97. South wind 10 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 1am. Mostly cloudy. Low around 75, with temperatures rising to around 77 overnight. South southeast wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 91. Heat index values as high as 98. South southeast wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 1am. Partly cloudy. Low around 74, with temperatures rising to around 76 overnight. South southeast wind 10 to 15 mph, with gusts as high as 35 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms between 7am and 1pm, then showers and thunderstorms likely. Partly sunny. High near 88, with temperatures falling to around 85 in the afternoon. South wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Showers and thunderstorms likely before 1am, then showers and thunderstorms likely. Mostly cloudy, with a low around 69. Southeast wind 5 to 10 mph. Chance of precipitation is 60%.
Showers and thunderstorms likely before 1pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 82. East wind 5 to 10 mph. Chance of precipitation is 60%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 67. East northeast wind 5 to 10 mph. Chance of precipitation is 60%.
Showers and thunderstorms likely. Mostly cloudy, with a high near 79. Chance of precipitation is 70%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 65. Chance of precipitation is 70%.
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 79. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 82. Chance of precipitation is 30%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
May 17
|
Mostly Cloudy
|
72°F |
10 to 15 mph
S
|
|
Sunday
May 17
|
Partly Sunny then Slight Chance Showers And Thunderstorms
|
90°F |
10 to 20 mph
S
|
|
Sunday Night
May 17
|
Slight Chance Showers And Thunderstorms
|
75°F |
15 to 20 mph
SSE
|
|
Monday
May 18
|
Mostly Cloudy then Slight Chance Showers And Thunderstorms
|
91°F |
15 to 20 mph
SSE
|
|
Monday Night
May 18
|
Slight Chance Showers And Thunderstorms
|
74°F |
10 to 15 mph
SSE
|
|
Tuesday
May 19
|
Slight Chance Showers And Thunderstorms
|
88°F |
10 mph
S
|
|
Tuesday Night
May 19
|
Showers And Thunderstorms Likely
|
69°F |
5 to 10 mph
SE
|
|
Wednesday
May 20
|
Showers And Thunderstorms Likely
|
82°F |
5 to 10 mph
E
|
|
Wednesday Night
May 20
|
Showers And Thunderstorms Likely
|
67°F |
5 to 10 mph
ENE
|
|
Thursday
May 21
|
Showers And Thunderstorms Likely
|
79°F |
5 mph
NE
|
|
Thursday Night
May 21
|
Showers And Thunderstorms Likely
|
65°F |
0 to 5 mph
NE
|
|
Friday
May 22
|
Chance Showers And Thunderstorms
|
79°F |
5 mph
ENE
|
|
Friday Night
May 22
|
Chance Showers And Thunderstorms
|
65°F |
0 to 5 mph
ESE
|
|
Saturday
May 23
|
Chance Showers And Thunderstorms
|
82°F |
0 to 5 mph
ESE
|
Major City Forecasts
Live forecast snapshots for major cities across Dallas County.
Coverage
Forecast coverage currently spans 24 of 24 mapped cities in Dallas County.
Largest mapped city population in this region: 1,343,266.
