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Allen, Texas Weather

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

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

Allen, TX
Saturday, July 4 at 10:13 AM
90
°
Mostly Clear
Feels like
97°
Humidity
58%
Wind
9 mph
Sunrise
1:22 AM
Sunset
3:39 PM
Allen, TX
Hour by hour · 24h
24-Hour ForecastAllen, TX: 24-hour forecast. Temperatures range from 74 to 99 degrees Fahrenheit.
L 74°H 99°
Allen, TX
7-day forecast
  1. Today
    Jul 4
    Overcast
    —
    —
    99°81°—
  2. Sunday
    Jul 5
    Overcast
    13%
    —
    99°74°0°
  3. Monday
    Jul 6
    Light Drizzle
    13%
    —
    97°73°-2°
  4. Tuesday
    Jul 7
    Light Drizzle
    12%
    —
    99°73°+2°
  5. Wednesday
    Jul 8
    Mostly Clear
    —
    —
    103°77°+4°
  6. Thursday
    Jul 9
    Mostly Clear
    —
    —
    105°80°+2°
  7. Friday
    Jul 10
    Clear
    —
    —
    103°81°-2°
Allen, TX
Next 24 hours · Hot now
HOT 90°65°85°105°6a12p6p12anow 90°high 99°low 74°
Allen, TX
Anemometer · 24h winds · from true
NESW
From · True
SW
222° · veering 29°
Direction
SW
222°
Sustained
9
mph
Gust
12
mph
Peak 24h
17
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 17 @ 3:00a
010203040MPHB1B2B3B4B5B6B7B8-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 3412SUSTGUST
−24h−18h−12h−6hnow
Light breeze veering 29° from the sw.
Allen, TX
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
992.7
+0.4 mb in 3h · steady · 29.31 inHg
Now
992.7
mb
3h
+0.4
mb
12h
+1.1
mb
24h
-1.8
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 991–995
9859909951000STORM|RAIN-21h-18h-15h-12h-9h-6h-3h-24hNOW994.7990.9992.7
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Allen, TX
Air quality
49
AQI
Good
→-2 in 6h

AQI 49 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 11.6 µg/m³, PM10 at 15.8 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
11.6μg/m³
PM 10Good
16μg/m³
NO₂Good
5μg/m³
OzoneModerate
72μg/m³
UV IndexModerate
4.5

What's driving it

Ozone × UV × Sky

Ozone at AQI 34 now. With UV 6.4 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 29 around 1 PM.

Present
AQI 34
UV peak
6.4 at 1 PM
Sky at peak
clear
Projected peak
AQI 29

PM × Wind × Precip

PM2.5 at 11.6 µg/m³, PM10 at 15.8 µg/m³ — typical background levels with no transport signature.

PM2.5/PM10
0.73
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/m³340
Allen, TX
Sky cover · visibility · 24h
Cloud cover
28%
MOSTLY CLEAR
100%0%−24h−18h−12h−6hnow
Visibility
60.1mi
UNLIMITED
114 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
15:13 UTC · Allen, 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
15:13 UTC · Allen, TX · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Allen, TX
Satellite · infrared · animated
Allen, TX
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Allen, TX
Almanac · Saturday, July 4
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
5:55 AM
Sunrise
1:22 AM
Daylight
14h 17m
Sunset
3:39 PM
Civil dusk
9:09 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Allen, TX
The moon
Waning Gibbous
81% illuminated
Moonrise
11:13 PM
Moonset
10:41 AM
In sign
♓︎ Pisces
Allen, TX
Microseason
Jul 1–5

Cicadas claim the scorching afternoon

bird
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Allen at a glance

  • Today vs. normal: 11°F above the seasonal normal for this latitude
  • Last frost: March 6 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

ZIP codes: 75002, 75013

16-Day Forecast — Allen

  1. Sat99°81°6%
  2. Sun99°74°13%
  3. Mon97°73°13%
  4. Tue99°73°12%
  5. Wed103°77°5%
  6. Thu105°80°1%
  7. Fri103°81°1%
  8. Sat105°79°6%
  9. Sun104°80°5%
  10. Mon103°77°4%
  11. Tue109°80°2%
  12. Wed115°81°19%
  13. Thu95°74°11%
  14. Fri91°69°12%
  15. Sat87°73°20%
  16. Sun97°75°20%

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

Live wind & temperature near Allen

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 — Allen

SPC includes Allen 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 Allen, July runs warmest near 85°F and January coldest around 46°F, while October is the wettest month (5.3 inches) and July the driest (2.2 inches).

MonthMean tempPrecipRainy days
January46°2.8″5
February50°3.4″5
March58°3.6″6
April65°3.5″5
May73°5.2″7
June81°3.8″5
July85°2.2″4
August85°2.5″4
September77°3.3″4
October67°5.3″6
November56°3.0″4
December48°3.4″4

Regional context

Per NOAA NCEI 1991-2020 normals, Allen runs from a 46°F January mean to 85°F in July, a 39°F seasonal spread, with near 41.9 inches of precipitation across about 57 wet days.

No season owns Allen's rain: October reaches 5.3 inches across 5.6 days and July keeps 2.2 inches on 3.5, an even spread through Allen's year. That lines Allen up with places like Fairview, TX, Parker, TX and Lucas, TX, fed by overlapping storm tracks.

Hard freezes are rare in Allen: the coldest month averages 46°F, so Allen's growing window runs most of the year. July is the hottest stretch near 85°F, pushing cool-season crops to the milder shoulder months. Within Allen, low or inland lots lose 3-5°F overnight versus Allen's coastal ground.

Similar climates: Fairview, TX, Parker, TX, Lucas, TX, Plano, TX, McKinney, TX.

Frequently asked

When does it freeze in Allen?
Allen's last spring frost lands near mid-March, and in Allen the first fall frost follows around mid-December.
What is the rainy season in Allen?
Rainfall in Allen peaks in October near 5.3 inches, out of about 42 inches annually.
What is the warmest month in Allen?
July is Allen's warmest month, averaging about 85°F.
What is the coldest month in Allen?
Allen bottoms out in January, with a mean near 46°F.
When can I start a vegetable garden in Allen?
Frost-hardy sowings begin at mid-March in Allen; warm-season starts follow two weeks on.
How many rainy days does Allen get?
Allen records around 57 days of measurable precipitation annually.
What hardiness zone is Allen?
Allen's hardiness zone tracks its winter low; with January near 46°F, check the USDA ZIP map for the exact zone.
What is the 10-day forecast for Allen?
Allen'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 Allen?
See this week's day-by-day rain chances for Allen in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Allen?
Current conditions for Allen and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the Allen forecast updated?
The Allen forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in Allen?
Today's sunrise and sunset times for Allen 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 Allen?
The next few days in Allen's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

Allen's humid subtropical climate in Texas pairs 46°F Januarys with 85°F Julys, 39°F apart across the seasons.

In a typical year Allen records about 42 inches of precipitation on around 57 days.

At 33.1°N, Allen's 39°F summer-to-winter swing sets when Allen's gardens wake and when frost returns.

All cities in Texas →

Dallas, TX weather →

ZIP codes in Allen

  • 75002
  • 75013

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.