Tropical Storm Bertha in the Gulf; Severe Weather in the East on Tuesday
Tropical Storm Bertha could bring tropical storm conditions to portions of the Florida Panhandle and Alabama coast through Wednesday, where a Tropical Storm Watch and Storm Surge Watch is in effect. Numerous severe thunderstorms with heavy rainfall are expected from the Ohio Valley into the Mid-Atlantic and Northeast Tuesday. Read More >
Hazardous Weather Conditions
Current conditions at
Dallas / Addison Airport (KADS)
Lat: 32.97°NLon: 96.83°WElev: 643ft.
Fair
88°F
31°C
| Humidity | 52% |
| Wind Speed | Vrbl 5 mph |
| Barometer | 29.89 in |
| Dewpoint | 68°F (20°C) |
| Visibility | 10.00 mi |
| Heat Index | 92°F (33°C) |
| Last update | 21 Jul 2:35 am CDT |
Extended Forecast for
Lewisville TX
Extreme Heat Warning July 21, 12:00pm until July 21, 08:00pm
Overnight
Low: 82 °F
Clear
Tuesday
High: 105 °F
Hot
Tuesday Night
Low: 85 °F
Clear
Wednesday
High: 104 °F
Hot
Wednesday Night
Low: 82 °F
Mostly Clear
Thursday
High: 102 °F
Hot
Thursday Night
Low: 82 °F
Mostly Clear
Friday
High: 103 °F
Hot
Friday Night
Low: 84 °F
Mostly Clear
Detailed Forecast
Overnight
Clear, with a low around 82. South southwest wind around 5 mph.
Tuesday
Sunny and hot, with a high near 105. Heat index values as high as 112. South southwest wind around 5 mph becoming calm.
Tuesday Night
Clear, with a low around 85. East wind around 5 mph becoming calm in the evening.
Wednesday
Sunny and hot, with a high near 104. Heat index values as high as 113. East northeast wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 82. East wind 5 to 10 mph.
Thursday
Sunny and hot, with a high near 102. East wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 82. East southeast wind 5 to 10 mph.
Friday
Sunny and hot, with a high near 103. South wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around 84. South southeast wind around 10 mph.
Saturday
Mostly sunny and hot, with a high near 103.
Saturday Night
Mostly clear, with a low around 84.
Sunday
Sunny and hot, with a high near 103.
Sunday Night
Mostly clear, with a low around 84.
Monday
Mostly sunny and hot, with a high near 104.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Lewisville TX
33.05°N 97°W (Elev. 531 ft)
33.05°N 97°W (Elev. 531 ft)
1:26 am CDT Jul 21, 2026
2am CDT Jul 21, 2026-6pm CDT Jul 27, 2026
Additional Resources
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