Weather StoryAlmanac, microseasons, and the day's weather story.

Duncanville, Texas Weather

Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →

Duncanville weather forecast — hour by hour, 7-day outlook, NOAA radar

Duncanville, TX
Saturday, July 4 at 9:26 AM
86
°
Clear
Feels like
92°
Humidity
64%
Wind
9 mph
Sunrise
1:24 AM
Sunset
3:39 PM
Duncanville, TX
Hour by hour · 24h
24-Hour ForecastDuncanville, TX: 24-hour forecast. Temperatures range from 71 to 98 degrees Fahrenheit.
L 71°H 98°
Duncanville, TX
7-day forecast
  1. Today
    Jul 4
    Overcast
    —
    —
    98°79°—
  2. Sunday
    Jul 5
    Light Showers
    —
    0.13″
    99°71°+1°
  3. Monday
    Jul 6
    Drizzle
    14%
    —
    99°74°0°
  4. Tuesday
    Jul 7
    Light Drizzle
    14%
    —
    102°76°+3°
  5. Wednesday
    Jul 8
    Light Drizzle
    —
    —
    105°77°+3°
  6. Thursday
    Jul 9
    Partly Cloudy
    —
    —
    105°79°0°
  7. Friday
    Jul 10
    Mostly Clear
    —
    —
    103°80°-2°
Duncanville, TX
Next 24 hours · Warm now
HOT 90°65°85°105°6a12p6p12anow 86°high 98°low 71°
Duncanville, TX
Anemometer · 24h winds · from true
NESW
From · True
SSW
201° · backing 7°
Direction
SSW
201°
Sustained
9
mph
Gust
15
mph
Peak 24h
26
avg 8
Beaufort · 3 · GENTLE BRZ
0
CALM
<1
1
LIGHT AIR
1–3
2
LIGHT BRZ
4–7
3
GENTLE BRZ
8–12
4
MOD BRZ
13–18
5
FRESH BRZ
19–24
6
STRONG BRZ
25–31
7
NEAR GALE
32–38
24h · sust vs gust · mph
avg 8 · pk 26 @ 3:00a
0102030MPHB1B2B3B4B5B6B7-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 3014SUSTGUST
−24h−18h−12h−6hnow
Light breeze backing 7° from the ssw.
Duncanville, TX
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
990.1
0.0 mb in 3h · steady · 29.24 inHg
Now
990.1
mb
3h
0.0
mb
12h
+1.1
mb
24h
-2.6
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 989–993
9809859909951000STORM|RAIN-21h-18h-15h-12h-9h-6h-3h-24hNOW992.6988.9990.0
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Duncanville, TX
Air quality
45
AQI
Good
→-3 in 6h

AQI 45 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 9.7 µg/m³, PM10 at 13.0 µg/m³ — typical background levels with no transport signature.

OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.

PM 2.5DRIVERGood
9.7μg/m³
PM 10Good
13μg/m³
NO₂Good
6μg/m³
OzoneGood
56μg/m³
UV IndexModerate
2.3

What's driving it

PM × Wind × Precip

PM2.5 at 9.7 µg/m³, PM10 at 13.0 µg/m³ — typical background levels with no transport signature.

PM2.5/PM10
0.75
Wind
light
Recent rain
0h in last 6h
Pattern
background

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).

7-DAY AQI TREND50100SATSUNMONTUEWEDTHUFRISAT7-DAY PM2.5 TREND · μg/m³330
Duncanville, TX
Sky cover · visibility · 24h
Cloud cover
4%
CLEAR
100%0%−24h−18h−12h−6hnow
Visibility
51.8mi
UNLIMITED
103 mi0 mi−24h−18h−12h−6hnow
Earth · GOES-19 ABI
Full Disk · Visible · GeoColor
GOES-19 full disk Visible · GeoColor
True-color daytime, blue/IR sandwich at night
14:26 UTC · Duncanville, TX · NOAA NESDIS / STAR · up to 10848 px
Continental US · GOES-19 ABI
CONUS Sector · Visible · GeoColor
GOES-19 CONUS Visible · GeoColor
Daytime true-color, blue-light/IR sandwich at night
14:26 UTC · Duncanville, TX · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Duncanville, TX
Satellite · infrared · animated
Duncanville, TX
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Duncanville, TX
Almanac · Saturday, July 4
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
5:57 AM
Sunrise
1:24 AM
Daylight
14h 15m
Sunset
3:39 PM
Civil dusk
9:08 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Duncanville, TX
The moon
Waning Gibbous
81% illuminated
Moonrise
11:13 PM
Moonset
10:42 AM
In sign
♓︎ Pisces
Duncanville, TX
Microseason
Jul 1–5

Cicadas claim the scorching afternoon

bird
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Duncanville at a glance

  • Today vs. normal: 7°F above the seasonal normal for this latitude
  • Last frost: March 3 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

ZIP codes: 75116, 75137

16-Day Forecast — Duncanville

  1. Sat98°79°1%
  2. Sun99°71°6%
  3. Mon99°74°14%
  4. Tue102°76°14%
  5. Wed105°77°8%
  6. Thu105°79°3%
  7. Fri103°80°2%
  8. Sat104°80°6%
  9. Sun107°82°3%
  10. Mon105°81°5%
  11. Tue111°83°5%
  12. Wed116°86°10%
  13. Thu97°76°11%
  14. Fri93°73°18%
  15. Sat87°73°23%
  16. Sun97°75°20%

Forecast data from Open-Meteo (CC BY 4.0).

Right now in the garden

Peak growing season

As of July 4, 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.

SPC Convective Outlook

Storm Prediction Center — Duncanville

SPC includes Duncanville in the general thunderstorm area today — no severe risk, but storms are possible.

  • TODAYTSTMGeneral Thunderstorms
  • TOMORROWTSTMGeneral Thunderstorms
  • DAY 3TSTMGeneral Thunderstorms

Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.

Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.

January 1–5: Frost quiets the live oaks.January 6–10: Still water thickens with ice.January 11–15: Springs begin to move beneath ice.January 16–20: Cardinal dawn calls grow bolder.January 21–25: Late January thaw pulses.January 26–31: Last freeze locks the land.February 1–5: February's lengthening light.February 6–10: Warming winds thaw the margin.February 11–15: Magnolia blooms break the gray.February 16–20: Mockingbirds resume the dawn chorus.February 21–25: Rain replaces the last snow.February 26–28: Mist clings to greening valleys.March 1–5: The green pulse awakens.March 6–10: Hibernators emerge to call.March 11–15: Dogwood and redbud ignite.March 16–20: Swallowtails emerge from winter silk.March 21–25: Light crowns the dogwood canopy.March 26–31: Redbud cascades over the thaw.April 1–5: Thunder announces the wet season.April 6–10: Barn swallows carve the warming sky.April 11–15: Magnolia blooms and falls in a breath.April 16–20: First rainbows arch over thunderheads.April 21–25: Reeds push through marsh water.April 26–30: Frost retreats; seedlings rise free.May 1–5: Warblers flood the canopy in waves.May 6–10: Tulip poplar lights the forest crown.May 11–15: Shad pulse upstream through rapids.May 16–20: Roses open on the Piedmont edge.May 21–25: Fireflies scout the humid dusk.May 26–31: Frog choruses rise from every wetland.June 1–5: Fireflies pulse through the magnolias.June 6–10: Kudzu climbs deeper into green.June 11–15: Sun climbs to its northern throne.June 16–20: Heat settles and the rain begins.June 21–25: The longest day turns toward shadow.June 26–30: Fireflies drift through Spanish moss.July 1–5: Cicadas claim the scorching afternoon.July 6–10: Thunderheads boil and break at dusk.July 11–15: Thunder builds each drowsy afternoon.July 16–20: Cicadas claim the long noon.July 21–25: Dog days drape the earth in haze.July 26–31: Katydids begin their rasping chorus.August 1–5: Dusk arrives one minute earlier each night.August 6–10: Meteorological summer's turning page.August 11–15: Cool winds gather at the margins.August 16–20: Dog-day cicadas rise.August 21–25: Heat breaks in creek beds.August 26–31: Monarchs gather strength.September 1–5: Harvests begin in earnest.September 6–10: Dew beads on resurrection fern.September 11–15: Raptors trail the thermals.September 16–20: Day and dark find balance.September 21–25: Thunder quiets the land.September 26–30: Insects retreat below.October 1–5: Swamp waters recede.October 6–10: Maples ignite the ridge.October 11–15: Asters crown the meadows.October 16–20: Crickets sing at dusk.October 21–25: Frost paints the garden.October 26–31: Light rains whisper down.November 1–5: Sweetgum Turns Crimson.November 6–10: Camellia Blooms Break Through.November 11–15: Earth Stiffens Underfoot.November 16–20: Bare Limbs Hold the Light.November 21–25: First Frost Grips the High Ground.November 26–30: North Wind Strips the Last Leaves.December 1–5: Darkness Falls Before Dinner.December 6–10: Winter Locks the Land.December 11–15: Wildlife Retreats to Shelter.December 16–20: Ice Edges Deepen Inward.December 21–25: The Sun Begins its Return.December 26–31: The Year Turns in Silence.🌱February 14 — First skunk-cabbage spathes thaw their way up☀️March 20 — Spring equinox — day and night balance🌸April 5 — Cherry blossoms peak in the parks🐦May 10 — Warbler migration peaks along the coast✨May 25 — First fireflies scout the meadows at dusk🌞June 21 — Summer solstice — longest day🦗July 25 — Peak cicada chorus in the afternoons🌊August 18 — Warmest sea-surface temperatures of the year🍂September 22 — Autumn equinox — the slow turn❄️October 25 — First widespread frost in the suburbs🍁November 10 — Peak leaf color across the Hudson Valley🌙December 21 — Winter solstice — longest night

Microseason · July 1–5

Cicadas claim the scorching afternoon

Dog-day cicadas emerge in waves, their rasp dominating every sunny hour; heat peaks above 90 degrees daily.

Day 185 of 365 · Wedge 37 of 72

The solar year drawn as a wheel of 72 five-day windows. Each wedge is one microseason; the four colored arcs mark winter, spring, summer, and autumn; the small icons sit at notable phenological events. The crimson pointer creeps clockwise as the year turns.

Planting calendar

MonthPlantHarvest
January——
February——
Marchlettuce, peas, spinach, radishes—
Aprillettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash—
Maytomatoes, peppers, beans, squashlettuce, peas, radishes
Junetomatoes, peppers, beans, squashlettuce, peas, radishes
July—tomatoes, beans, summer squash
August—tomatoes, beans, summer squash
September—tomatoes, beans, summer squash
Octoberfall brassicas, garlic (overwinter), carrotswinter squash, tomatoes (last)
Novemberfall brassicas, garlic (overwinter), carrots—
December——

A year in weather

In Duncanville, August runs warmest near 86°F and January coldest around 47°F, while October is the wettest month (4.7 inches) and August the driest (1.7 inches).

MonthMean tempPrecipRainy days
January47°2.3″4
February51°2.6″4
March59°3.4″5
April66°3.1″4
May74°4.3″6
June82°3.5″5
July85°1.7″3
August86°1.7″3
September79°3.3″4
October68°4.7″5
November57°2.6″4
December49°2.8″4

Regional context

Drawing on NOAA NCEI 1991-2020 normals, Duncanville's January averages 47°F and July 85°F — 38°F apart — while precipitation totals roughly 36.2 inches over some 49 days.

No season owns Duncanville's rain: October reaches 4.7 inches across 4.9 days and August keeps 1.7 inches on 2.7, an even spread through Duncanville's year. That even rhythm groups Duncanville with places like DeSoto, TX, Cedar Hill, TX and Cockrell Hill, TX.

Freezes are uncommon in Duncanville, where the coldest month averages 47°F; cool-season crops grow fall through spring. Summer heat in August (about 86°F) is the binding constraint, not cold. Across Duncanville, elevation and tree cover drive a 4-7°F spread in Duncanville's overnight lows.

Similar climates: DeSoto, TX, Cedar Hill, TX, Cockrell Hill, TX, Grand Prairie, TX, Glenn Heights, TX.

Frequently asked

When does it freeze in Duncanville?
Duncanville's last spring frost lands near mid-March, and in Duncanville the first fall frost follows around mid-December.
What is the rainy season in Duncanville?
Duncanville sees its heaviest rain in October (around 4.7 inches), part of roughly 36 inches a year.
What is the warmest month in Duncanville?
On average August tops the year in Duncanville at about 86°F.
What is the coldest month in Duncanville?
The coldest stretch in Duncanville falls in January, around 47°F on average.
When can I start a vegetable garden in Duncanville?
Around mid-March, start frost-hardy crops in Duncanville; tomatoes and basil belong a fortnight later.
How many rainy days does Duncanville get?
Duncanville records around 49 days of measurable precipitation annually.
What hardiness zone is Duncanville?
Since January in Duncanville averages 47°F, Duncanville's USDA zone follows that floor — confirm it by ZIP.
What is the 10-day forecast for Duncanville?
Duncanville's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
Will it rain this week in Duncanville?
See this week's day-by-day rain chances for Duncanville in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Duncanville?
Current conditions for Duncanville and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the Duncanville forecast updated?
The Duncanville forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in Duncanville?
Today's sunrise and sunset times for Duncanville are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
How accurate is the weather forecast for Duncanville?
The next few days in Duncanville's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

In Duncanville, Texas, the humid subtropical climate runs from about 47°F in January to 85°F in July, a 38°F seasonal range.

Duncanville sees close to 36 inches of precipitation annually, falling across some 49 wet days.

Duncanville's 38°F range, set by its 32.6°N position, drives frost timing and what thrives in Duncanville.

All cities in Texas →

Grand Prairie, TX weather →

ZIP codes in Duncanville

  • 75116
  • 75137
  • 75138

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.