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

Los Fresnos, Texas Weather

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

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

Los Fresnos, TX
Saturday, July 4 at 9:26 AM
87
°
Mostly Clear
Feels like
93°
Humidity
69%
Wind
12 mph
Sunrise
1:42 AM
Sunset
3:26 PM
Los Fresnos, TX
Hour by hour · 24h
24-Hour ForecastLos Fresnos, TX: 24-hour forecast. Temperatures range from 78 to 96 degrees Fahrenheit.
L 78°H 96°
Los Fresnos, TX
7-day forecast
  1. Today
    Jul 4
    Mostly Clear
    —
    —
    96°79°—
  2. Sunday
    Jul 5
    Overcast
    —
    —
    96°78°0°
  3. Monday
    Jul 6
    Overcast
    —
    —
    98°78°+2°
  4. Tuesday
    Jul 7
    Overcast
    —
    —
    98°79°0°
  5. Wednesday
    Jul 8
    Overcast
    —
    —
    97°80°-1°
  6. Thursday
    Jul 9
    Overcast
    —
    —
    96°79°-1°
  7. Friday
    Jul 10
    Overcast
    —
    —
    96°80°0°
Los Fresnos, TX
Next 24 hours · Warm now
HOT 90°74°87°100°6a12p6p12anow 86°high 96°low 78°
Los Fresnos, TX
Anemometer · 24h winds · from true
NESW
From · True
S
170° · veering 12°
Direction
S
170°
Sustained
12
mph
Gust
16
mph
Peak 24h
21
avg 10
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 10 · pk 21 @ 6:00p
0102030MPHB1B2B3B4B5B6-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 239SUSTGUST
−24h−18h−12h−6hnow
Light breeze veering 12° from the s.
Los Fresnos, TX
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1015.2
+1.7 mb in 3h · rising · 29.98 inHg
Now
1015.2
mb
3h
+1.7
mb
12h
+1.2
mb
24h
-0.1
mb
Regime · FAIR
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 1013–1015
9951000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY1030-21h-18h-15h-12h-9h-6h-3h-24hNOW1015.31013.11015.1
−24h−18h−12h−6hnow
Fair and building — a clean high settles over the region.
Los Fresnos, TX
Air quality
24
AQI
Good
→0 in 6h

AQI 24 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 7.9 µg/m³ (AQI 44), ratio 0.67 with 12 mph wind — characteristic of long-range haze transport rather than a local source.

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

PM 2.5DRIVERGood
7.9μg/m³
PM 10Good
12μg/m³
NO₂Good
2μg/m³
OzoneGood
51μg/m³
UV IndexLow
2.0

What's driving it

PM × Wind × Precip

PM2.5 at 7.9 µg/m³ (AQI 44), ratio 0.67 with 12 mph wind — characteristic of long-range haze transport rather than a local source.

PM2.5/PM10
0.67
Wind
breezy
Recent rain
0h in last 6h
Pattern
transport

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/m³310
Los Fresnos, TX
Sky cover · visibility · 24h
Cloud cover
31%
MOSTLY CLEAR
100%0%−24h−18h−12h−6hnow
Visibility
45.3mi
UNLIMITED
77 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 · Los Fresnos, 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 · Los Fresnos, TX · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Los Fresnos, TX
Satellite · infrared · animated
Los Fresnos, TX
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Los Fresnos, TX
Almanac · Saturday, July 4
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
6:17 AM
Sunrise
1:42 AM
Daylight
13h 44m
Sunset
3:26 PM
Civil dusk
8:53 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Los Fresnos, TX
The moon
Waning Gibbous
81% illuminated
Moonrise
11:08 PM
Moonset
10:50 AM
In sign
♓︎ Pisces
Los Fresnos, TX
Microseason
Jul 1–5

Cicadas claim the scorching afternoon

bird
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Los Fresnos at a glance

  • Today vs. normal: 87°F — typical for the season
  • Last frost: January 22 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

ZIP code: 78566

16-Day Forecast — Los Fresnos

  1. Sat96°79°1%
  2. Sun96°78°1%
  3. Mon98°78°4%
  4. Tue98°79°3%
  5. Wed97°80°2%
  6. Thu96°79°4%
  7. Fri96°80°4%
  8. Sat97°81°6%
  9. Sun98°79°9%
  10. Mon98°78°10%
  11. Tue99°76°7%
  12. Wed100°78°7%
  13. Thu100°77°3%
  14. Fri97°79°0%
  15. Sat97°81°6%
  16. Sun97°79°13%

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.

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——
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

The year in Los Fresnos tops out in August (~87°F) and dips lowest in January (~63°F), with September wettest at 5.7 inches and February driest at 1.0 inches.

MonthMean tempPrecipRainy days
January63°1.1″2
February67°1.0″2
March71°1.4″2
April77°1.5″2
May82°2.2″2
June86°2.9″4
July86°2.0″3
August87°2.2″4
September83°5.7″8
October78°3.8″5
November71°1.8″3
December64°1.2″3

Regional context

Per NOAA NCEI 1991-2020 normals, Los Fresnos runs from a 63°F January mean to 86°F in July, a 24°F seasonal spread, with near 26.8 inches of precipitation across about 39 wet days.

Los Fresnos's rain peaks in summer: September brings 5.7 inches over 7.6 thunderstorm-fed days, while February sees just 1.0 inches across 1.9 days under cooler, drier air. That summer-storm rhythm groups Los Fresnos with places like Indian Lake, TX, Orason, TX and Laureles, TX.

With a coldest-month mean of 63°F, Los Fresnos stays mostly frost-free and grows year-round. The August peak near 87°F is Los Fresnos's real limit, pushing cool-season vegetables to spring and fall. Across Los Fresnos, elevation and tree cover drive a 4-7°F spread in Los Fresnos's overnight lows.

Similar climates: Indian Lake, TX, Orason, TX, Laureles, TX, Chula Vista, TX, Del Mar Heights, TX.

Frequently asked

When does it freeze in Los Fresnos?
In Los Fresnos, expect the last spring frost near mid-February; Los Fresnos's first autumn frost comes around mid-December.
What is the rainy season in Los Fresnos?
September is the wettest month in Los Fresnos, about 5.7 inches on average; the year totals roughly 27 inches.
What is the warmest month in Los Fresnos?
The warmest stretch in Los Fresnos comes in August, around 87°F on average.
What is the coldest month in Los Fresnos?
On average January is the chilliest month in Los Fresnos, about 63°F.
When can I start a vegetable garden in Los Fresnos?
Time tomatoes in Los Fresnos for two weeks after mid-February; peas and greens start at Los Fresnos's frost line.
How many rainy days does Los Fresnos get?
Expect roughly 39 wet days a year in Los Fresnos.
What hardiness zone is Los Fresnos?
Los Fresnos sits in the USDA zone set by January lows near 63°F; the USDA ZIP tool gives the band.
What is the 10-day forecast for Los Fresnos?
Los Fresnos'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 Los Fresnos?
See this week's day-by-day rain chances for Los Fresnos in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Los Fresnos?
Current conditions for Los Fresnos and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the Los Fresnos forecast updated?
The Los Fresnos forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in Los Fresnos?
Today's sunrise and sunset times for Los Fresnos 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 Los Fresnos?
The next few days in Los Fresnos's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

Los Fresnos, Texas has a humid subtropical climate: January averages roughly 63°F, July about 86°F, 23°F between them.

Los Fresnos sees close to 27 inches of precipitation annually, falling across some 39 wet days.

At 26.1°N, Los Fresnos's 23°F summer-to-winter swing sets when Los Fresnos's gardens wake and when frost returns.

All cities in Texas →

Brownsville, TX weather →

ZIP codes in Los Fresnos

  • 78566

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.