Lewisville, Texas Weather
Dusk arrives one minute earlier each night. Day 43 of summer. Read this microseason across nine climate regions →
Lewisville weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayAug 2Clear——97°74°—
- MondayAug 3Clear——101°73°+4°
- TuesdayAug 4Overcast——107°79°+6°
- WednesdayAug 5Overcast——107°85°0°
- ThursdayAug 6Overcast——104°84°-3°
- FridayAug 7Light Drizzle——101°84°-3°
- SaturdayAug 8Light Drizzle——102°82°+1°
AQI 46 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 7.9 µg/m³ (AQI 44) with a 0.99 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in stagnant air, not road dust.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 38 now. With UV 3.4 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 17.
- Present
- AQI 38
- UV peak
- 3.4 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 17
PM × Wind × Precip
PM2.5 at 7.9 µg/m³ (AQI 44) with a 0.99 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in stagnant air, not road dust.
- PM2.5/PM10
- 0.99
- Wind
- calm
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
Red sky at night, sailor's delight.
- Moonrise
- 10:10 PM
- Moonset
- 10:33 AM
- In sign
- ♓︎ Pisces
Dusk arrives one minute earlier each night
Lewisville at a glance
- Today vs. normal: 14°F above the seasonal normal for this latitude
- Last frost: March 5 (climatological average for this latitude)
- Microseason: Aug 1–5
- Planting window: Sow fall peas. Start kale and collard seedlings for fall.
ZIP codes: 75057, 75067, 75077
16-Day Forecast — Lewisville
- Sun97°74°0%
- Mon101°73°0%
- Tue107°79°1%
- Wed107°85°1%
- Thu104°84°1%
- Fri101°84°5%
- Sat102°82°6%
- Sun101°79°3%
- Mon93°75°3%
- Tue101°79°4%
- Wed103°82°4%
- Thu104°83°5%
- Fri104°83°13%
- Sat105°83°16%
- Sun105°84°13%
- Mon105°84°13%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Lewisville
Right now in the garden
Peak growing season
As of August 2, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
Sun & seasons in Lewisville
Lewisville sits in Denton County, where the year’s longest day runs 14h 20m of daylight and its shortest just 9h 58m — a swing of +4h 22m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.
Houston, the state’s largest city, lies about 244 miles to the SSE. The nearest town Lewisville tracks is Carrollton, roughly 6 miles to the SE.
Air quality in Lewisville’s county has trended dirtier since 2020; its cleanest year on record was 2020 (median AQI 44). See the full air-quality history for Lewisville.
ZIP codes in Lewisville
- 75067
- 75065
- 75056
- 75057
- 75077
- 75029