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

McAllen, Texas Weather

Dusk arrives one minute earlier each night. Day 43 of summer. Read this microseason across nine climate regions →

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

McAllen, TX
Sunday, August 2 at 11:01 AM
94
°
Clear
Feels like
106°
Humidity
56%
Wind
3 mph
Sunrise
1:59 AM
Sunset
3:19 PM
McAllen, TX
Hour by hour · 24h
24-Hour ForecastMcAllen, TX: 24-hour forecast. Temperatures range from 78 to 103 degrees Fahrenheit with a 29% chance of precipitation at 7 PM.
L 78°H 103°
McAllen, TX
7-day forecast
  1. Today
    Aug 2
    Overcast
    29%
    —
    103°81°—
  2. Monday
    Aug 3
    Overcast
    —
    —
    103°78°0°
  3. Tuesday
    Aug 4
    Partly Cloudy
    —
    —
    101°80°-2°
  4. Wednesday
    Aug 5
    Partly Cloudy
    —
    —
    102°81°+1°
  5. Thursday
    Aug 6
    Clear
    —
    —
    102°82°0°
  6. Friday
    Aug 7
    Clear
    12%
    —
    103°80°+1°
  7. Saturday
    Aug 8
    Mostly Clear
    15%
    —
    103°80°0°
McAllen, TX
Next 24 hours · Hot now
HOT 90°70°90°110°12p6p12a6anow 94°high 103°low 78°PRECIP %
McAllen, TX
Anemometer · 24h winds · from true
NESW
From · True
S
189° · veering 10°
Direction
S
189°
Sustained
3
mph
Gust
3
mph
Peak 24h
27
avg 10 mph
Beaufort · 1 · LIGHT AIR
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 10 mph · pk 27 mph @ 12:00a
0102030MPHB1B2B3B4B5B6B7-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 2810SUSTGUST
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
McAllen, TX
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1007.8
+1.0 mb in 3h · rising · 29.76 inHg
Now
1007.8
mb
3h
+1.0
mb
12h
+1.2
mb
24h
-0.9
mb
Regime · RAIN
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 1004–1009
1000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR-21h-18h-15h-12h-9h-6h-3h-24hNOW1008.71004.31007.8
Pressure climbing out of the rain band — clearing edging in.
McAllen, TX
Air quality
38
AQI
Good
→-2 in 6h

AQI 38 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 8.5 µg/m³ (AQI 47) with a 0.71 fine-to-coarse ratio and 3 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.

PM 2.5DRIVERGood
8.5μg/m³
PM 10Good
12μg/m³
NO₂Good
2μg/m³
OzoneGood
60μg/m³
UV IndexHigh
6.6

What's driving it

PM × Wind × Precip

PM2.5 at 8.5 µg/m³ (AQI 47) with a 0.71 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in stagnant air, not road dust.

PM2.5/PM10
0.71
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).

7-DAY AQI TREND50100SUNMONTUEWEDTHUFRISATSUN7-DAY PM2.5 TREND · μg/m³300
McAllen, TX
Sky cover · visibility · 24h
Cloud cover
4%
CLEAR
100%0%−24h−18h−12h−6hnow
Visibility
63.2mi
UNLIMITED
130 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
16:01 UTC · McAllen, 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
16:01 UTC · McAllen, TX · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
McAllen, TX
Satellite · infrared · animated
McAllen, TX
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
McAllen, TX
Almanac · Sunday, August 2
Red sky at night, sailor's delight.
Civil dawn
6:35 AM
Sunrise
1:59 AM
Daylight
13h 20m
Sunset
3:19 PM
Civil dusk
8:45 PM
Planting note
Sow fall peas. Start kale and collard seedlings for fall.
McAllen, TX
The moon
Waning Gibbous
84% illuminated
Moonrise
10:14 PM
Moonset
10:37 AM
In sign
♓︎ Pisces
McAllen, TX
Microseason
Aug 1–5

Dusk arrives one minute earlier each night

celestial
Jan 159% of the yearDec 31

Read this microseason across nine climate regions →

McAllen at a glance

  • Today vs. normal: 18°F above the seasonal normal for this latitude
  • Last frost: January 23 (climatological average for this latitude)
  • Microseason: Aug 1–5
  • Planting window: Sow fall peas. Start kale and collard seedlings for fall.

ZIP codes: 78501, 78503, 78504

16-Day Forecast — McAllen

  1. Sun103°81°29%
  2. Mon103°78°2%
  3. Tue101°80°1%
  4. Wed102°81°1%
  5. Thu102°82°8%
  6. Fri103°80°12%
  7. Sat103°80°15%
  8. Sun101°80°7%
  9. Mon100°80°6%
  10. Tue102°80°1%
  11. Wed101°80°1%
  12. Thu102°81°2%
  13. Fri102°80°3%
  14. Sat101°80°0%
  15. Sun101°81°3%
  16. Mon101°80°3%

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

Live wind & temperature near McAllen

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.

SPC Convective Outlook

Storm Prediction Center — McAllen

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

  • TODAYTSTMGeneral Thunderstorms
  • TOMORROWNONENo severe risk
  • DAY 3NONENo severe risk

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.

Sun & seasons in McAllen

McAllen sits in Hidalgo County, where the year’s longest day runs 13h 47m of daylight and its shortest just 10h 30m — a swing of +3h 17m 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 302 miles to the NE. The nearest town McAllen tracks is Brownsville, roughly 51 miles to the ESE.

Air quality in McAllen’s county has held roughly steady since 2020; its cleanest year on record was 2020 (median AQI 44). See the full air-quality history for McAllen.

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 · August 1–5

Dusk arrives one minute earlier each night

Sunset slides back toward 8 PM; darkness creeps in, signaling summer's decline though heat persists.

Day 214 of 365 · Wedge 43 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——
Februarylettuce, peas, spinach, radishes—
Marchlettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash—
Apriltomatoes, peppers, beans, squash—
Maytomatoes, peppers, beans, squashlettuce, peas, radishes
June—lettuce, 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

McAllen peaks at about 87°F in August and bottoms near 61°F in January; September brings the heaviest rain (2.9 inches) and March the least (1.0 inches).

MonthMean tempPrecipRainy days
January61°1.2″12
February63°1.2″12
March71°1.0″13
April76°2.0″12
May81°2.4″16
June85°1.6″13
July86°1.7″11
August87°1.9″13
September82°2.9″19
October77°2.3″12
November69°1.1″11
December63°1.0″10

Regional context

In McAllen, NOAA NCEI 1991-2020 normals put January near 61°F and July near 86°F — a 26°F seasonal arc — with about 20.4 inches of precipitation over 155 rainy or snowy days.

Precipitation in McAllen runs summer-dominant: September averages 2.9 inches across 18.8 days of warm-season storms, while March drops to 1.0 inches over 12.8 rainy days of drier cool air. It is a warm-season-wet pattern McAllen shares with places like Palmhurst, TX, Mission, TX and Pharr, TX.

Hard freezes are rare in McAllen: the coldest month averages 61°F, so McAllen's growing window runs most of the year. August is the hottest stretch near 87°F, pushing cool-season crops to the milder shoulder months. Across McAllen, elevation and tree cover drive a 4-7°F spread in McAllen's overnight lows.

Similar climates: Palmhurst, TX, Mission, TX, Pharr, TX, Alton, TX, Lopezville, TX.

Naturalist notes

Late May brings the arrival of scissor-tailed flycatchers, their distinctive forked tails marking the transition into summer breeding season.

Mexican buckeye trees bloom in March, their fragrant pink clusters appearing before the leaves unfurl.

Frequently asked

When does it freeze in McAllen?
Frost typically leaves McAllen by mid-February and returns to McAllen near mid-December.
What is the rainy season in McAllen?
September is the wettest month in McAllen, about 2.9 inches on average; the year totals roughly 20 inches.
What is the warmest month in McAllen?
August is McAllen's warmest month, averaging about 87°F.
What is the coldest month in McAllen?
McAllen bottoms out in January, with a mean near 61°F.
When can I start a vegetable garden in McAllen?
Frost-hardy sowings begin at mid-February in McAllen; warm-season starts follow two weeks on.
How many rainy days does McAllen get?
Expect roughly 155 wet days a year in McAllen.
What hardiness zone is McAllen?
McAllen's hardiness zone tracks its winter low; with January near 61°F, check the USDA ZIP map for the exact zone.
What is the 10-day forecast for McAllen?
McAllen'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 McAllen?
See this week's day-by-day rain chances for McAllen in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in McAllen?
Current conditions for McAllen and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the McAllen forecast updated?
The McAllen forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in McAllen?
Today's sunrise and sunset times for McAllen 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 McAllen?
The next few days in McAllen's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

McAllen's humid subtropical climate in Texas pairs 61°F Januarys with 86°F Julys, 25°F apart across the seasons.

In a typical year McAllen records about 20 inches of precipitation on around 155 days.

At 26.2°N, McAllen's 25°F summer-to-winter swing sets when McAllen's gardens wake and when frost returns.

All cities in Texas →

Houston, TX weather →

ZIP codes in McAllen

  • 78573
  • 78504
  • 78503
  • 78501
  • 78557
  • 78502
  • 78505

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.