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Lewisville, TX Weather Forecast | 5 Day

Updated: Sat May 16th 2026 2:30 PM CDT

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Lewisville, TX Weather Forecast - 5-16-26 - Sunny

Sunny

Sat 5-16-26

Sunny with a high of 92°F and a low of 71°F. Wind will be moderate, blowing around 20mph on average and gusts of 26.4mph at 11 PM. The humidity will be on the higher side, averaging about 62%, the maximum being 62% at 11 PM and 43% being its lowest at 5 PM. Barometric pressure is its highest of 29.8inHg at 3 PM, a lowest point of 29.74inHg at 6 PM with an avg 29.77inHg.

    • HI: 92°F
    • LO: 71°F
    • Rainfall: 0% | est. 0in
    • Snowfall: 0%
    • Wind
      19.9 mph
    • Humidity
      62% avg.
    • UV Index
      9.1
    • Air Quality
      Good
    • Sunrise
      06:27 AM
    • Sunset
      08:21 PM
    • Moonrise
      05:55 AM
    • Moonset
      08:43 PM
    • Moon Phase
      New Moon
Lewisville, TX Weather Forecast - 5-17-26 - Scattered Showers

Scattered Showers

Weather Tomorrow, Sun 5-17-26

Scattered Showers with a high of 87°F and a low of 74°F. It will likey rain, having a 88% chance of a downpour with an estimated 0.01in. Winds will be strong at speeds peaking at 25mph and gusts of 35.6mph at 9 PM. The humidity will be on the higher side, averaging about 66%, the maximum being 83% at 4 AM and 52% being its lowest at 10 PM. Barometric pressure is its highest of 29.82inHg at 10 AM, a lowest point of 29.68inHg at 9 PM with an avg 29.75inHg.

    • HI: 87°F
    • LO: 74°F
    • Rainfall: 88% | est. 0.01in
    • Snowfall: 0%
    • Wind
      24.2 mph
    • Humidity
      66% avg.
    • UV Index
      7.3
    • Air Quality
      Good
    • Sunrise
      06:27 AM
    • Sunset
      08:22 PM
    • Moonrise
      06:45 AM
    • Moonset
      09:58 PM
    • Moon Phase
      Waxing Crescent
Lewisville, TX Weather Forecast - 5-18-26 - Scattered Showers

Scattered Showers

Mon 5-18-26

Scattered Showers with a high of 91°F and a low of 76°F. It will likey rain, having a 89% chance of a downpour with an estimated 0.05in. Winds will be strong at speeds peaking at 23mph and gusts of 31.2mph at 9 PM. The humidity will be on the higher side, averaging about 65%, the maximum being 82% at 4 AM and 47% being its lowest at 3 PM. Barometric pressure is its highest of 29.85inHg at 8 AM, a lowest point of 29.74inHg at 12 AM with an avg 29.8inHg.

    • HI: 91°F
    • LO: 76°F
    • Rainfall: 89% | est. 0.05in
    • Snowfall: 0%
    • Wind
      22.6 mph
    • Humidity
      65% avg.
    • UV Index
      7.7
    • Air Quality
      Good
    • Sunrise
      06:26 AM
    • Sunset
      08:23 PM
    • Moonrise
      07:46 AM
    • Moonset
      11:07 PM
    • Moon Phase
      Waxing Crescent
Lewisville, TX Weather Forecast - 5-19-26 - Scattered Showers

Scattered Showers

Tue 5-19-26

Scattered Showers with a high of 86°F and a low of 74°F. It will likey rain, having a 86% chance of a downpour with an estimated 0.18in. Winds will be strong at speeds peaking at 21mph and gusts of 30mph at 12 AM. The humidity will be on the higher side, averaging about 73%, the maximum being 86% at 11 PM and 58% being its lowest at 7 PM. Barometric pressure is its highest of 29.95inHg at 1 PM, a lowest point of 29.84inHg at 4 AM with an avg 29.9inHg.

    • HI: 86°F
    • LO: 74°F
    • Rainfall: 86% | est. 0.18in
    • Snowfall: 0%
    • Wind
      20.8 mph
    • Humidity
      73% avg.
    • UV Index
      6
    • Air Quality
      Good
    • Sunrise
      06:26 AM
    • Sunset
      08:23 PM
    • Moonrise
      08:54 AM
    • Moonset
      No moonset
    • Moon Phase
      Waxing Crescent
Lewisville, TX Weather Forecast - 5-20-26 - Heavy Rain

Heavy Rain

Wed 5-20-26

Heavy Rain with a high of 82°F and a low of 70°F. It will likey rain, having a 85% chance of a downpour with an estimated 1.21in. Wind will be moderate, blowing around 14mph on average and gusts of 27.4mph at 12 AM. High humidity with average of 86% is anticipated, the maximum being 96% at 4 AM and 67% being its lowest at 2 PM. Barometric pressure is its highest of 30.01inHg at 9 AM, a lowest point of 29.92inHg at 7 PM with an avg 29.97inHg.

    • HI: 82°F
    • LO: 70°F
    • Rainfall: 85% | est. 1.21in
    • Snowfall: 0%
    • Wind
      13.9 mph
    • Humidity
      86% avg.
    • UV Index
      0.1
    • Air Quality
      Good
    • Sunrise
      06:25 AM
    • Sunset
      08:24 PM
    • Moonrise
      10:07 AM
    • Moonset
      12:05 AM
    • Moon Phase
      Waxing Crescent
Lewisville, TX Weather Forecast - 5-21-26 - Scattered Showers

Scattered Showers

Thu 5-21-26

Scattered Showers with a high of 77°F and a low of 67°F. It will likey rain, having a 82% chance of a downpour with an estimated 0.07in. Winds will be light at 10mph and gusts of 12.4mph at 7 PM. High humidity with average of 84% is anticipated, the maximum being 94% at 7 AM and 68% being its lowest at 4 PM. Barometric pressure is its highest of 30.02inHg at 1 PM, a lowest point of 29.9inHg at 7 PM with an avg 29.98inHg.

    • HI: 77°F
    • LO: 67°F
    • Rainfall: 82% | est. 0.07in
    • Snowfall: 0%
    • Wind
      9.2 mph
    • Humidity
      84% avg.
    • UV Index
      5
    • Air Quality
      TBA
    • Sunrise
      06:24 AM
    • Sunset
      08:25 PM
    • Moonrise
      11:19 AM
    • Moonset
      12:53 AM
    • Moon Phase
      Waxing Crescent

This 5-Day weather forecast is relevant for ZIP codes 75029, 75057, 75067, and 75077, accurately covering areas of Lewisville, TX.

Currently

Sunny 85°F
29.85 inHg.
Barometer
48%
Humidity
S 29.5 mph
Wind
Sunny

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