Lewisville, TX Weather Forecast
Local 7-day forecast
Clear
Track current conditions, temperature changes, wind, and the full daily outlook for Lewisville, TX in one place.
Clear, with a low around 80. South southwest wind 5 to 10 mph.
Local Weather Overview
This forecast page for Lewisville, 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: Jul 12, 2026 2:59 AM CDT.
The active forecast window currently covers Jul 12 to Jul 18, 2026 for Lewisville, TX.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 12 to Jul 18, 2026
- Latest sync
- Jul 12, 2026 2:59 AM CDT
- Forecast office
- FWD
- Source
- NOAA / NWS
Daily Outlook
This Week in Lewisville
Saturday looks like the warmest upcoming period in Lewisville at 99 degrees F.
Monday Night is the coolest period ahead with temperatures near 75 degrees F.
The strongest winds are forecast for Overnight at about 5 to 10 mph SSW.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 12, 2026 2:59 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 chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 96. Heat index values as high as 104. South southwest wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely between 7pm and 10pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 77. Heat index values as high as 100. East wind 0 to 5 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
A chance of rain showers before 7am, then a chance of showers and thunderstorms. Partly sunny. High near 95, with temperatures falling to around 93 in the afternoon. Heat index values as high as 102. East wind 0 to 5 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms before 10pm, then a chance of showers and thunderstorms. Partly cloudy. Low around 75, with temperatures rising to around 77 overnight. South southeast wind 0 to 5 mph. Chance of precipitation is 40%.
A chance of rain showers before 7am, then a slight chance of showers and thunderstorms. Mostly sunny. High near 94, with temperatures falling to around 92 in the afternoon. Southeast wind 0 to 5 mph. Chance of precipitation is 30%.
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 75. South wind around 5 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. South southwest wind 5 to 10 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 76. South wind 5 to 10 mph. Chance of precipitation is 20%.
Mostly sunny, with a high near 95.
Partly cloudy, with a low around 78.
Sunny, with a high near 97.
Mostly clear, with a low around 80.
Sunny, with a high near 99.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Jul 12
|
Clear
|
80°F |
5 to 10 mph
SSW
|
|
Sunday
Jul 12
|
Mostly Sunny then Chance Showers And Thunderstorms
|
96°F |
5 mph
SSW
|
|
Sunday Night
Jul 12
|
Chance Showers And Thunderstorms
|
77°F |
0 to 5 mph
E
|
|
Monday
Jul 13
|
Chance Showers And Thunderstorms
|
95°F |
0 to 5 mph
E
|
|
Monday Night
Jul 13
|
Chance Showers And Thunderstorms
|
75°F |
0 to 5 mph
SSE
|
|
Tuesday
Jul 14
|
Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
94°F |
0 to 5 mph
SE
|
|
Tuesday Night
Jul 14
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
75°F |
5 mph
S
|
|
Wednesday
Jul 15
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
93°F |
5 to 10 mph
SSW
|
|
Wednesday Night
Jul 15
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
76°F |
5 to 10 mph
S
|
|
Thursday
Jul 16
|
Mostly Sunny
|
95°F |
5 to 10 mph
S
|
|
Thursday Night
Jul 16
|
Partly Cloudy
|
78°F |
5 to 10 mph
S
|
|
Friday
Jul 17
|
Sunny
|
97°F |
5 to 10 mph
S
|
|
Friday Night
Jul 17
|
Mostly Clear
|
80°F |
10 mph
S
|
|
Saturday
Jul 18
|
Sunny
|
99°F |
5 to 10 mph
SSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Lewisville.
