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

Mercedes, Texas Weather

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

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

Mercedes, TX
Saturday, July 4 at 7:40 AM
79
°
Clear
Feels like
89°
Humidity
90%
Wind
5 mph
Sunrise
1:44 AM
Sunset
3:27 PM
Mercedes, TX
Hour by hour · 24h
24-Hour ForecastMercedes, TX: 24-hour forecast. Temperatures range from 78 to 99 degrees Fahrenheit.
L 78°H 99°
Mercedes, TX
7-day forecast
  1. Today
    Jul 4
    Partly Cloudy
    99°78°
  2. Sunday
    Jul 5
    Overcast
    98°77°-1°
  3. Monday
    Jul 6
    Overcast
    100°77°+2°
  4. Tuesday
    Jul 7
    Partly Cloudy
    101°77°+1°
  5. Wednesday
    Jul 8
    Overcast
    99°78°-2°
  6. Thursday
    Jul 9
    Overcast
    98°77°-1°
  7. Friday
    Jul 10
    Overcast
    99°79°+1°
Mercedes, TX
Anemometer · 24h winds · from true
NESW
From · True
SSE
162° · veering 12°
Direction
SSE
162°
Sustained
5
mph
Gust
18
mph
Peak 24h
24
avg 10
Beaufort · 2 · LIGHT 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 24 @ 8:00p
0102030MPHB1B2B3B4B5B6-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 245SUSTGUST
−24h−18h−12h−6hnow
Light breeze veering 12° from the sse.
Mercedes, TX
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1013.2
+0.6 mb in 3h · rising · 29.92 inHg
Now
1013.2
mb
3h
+0.6
mb
12h
+1.7
mb
24h
-0.3
mb
Regime · CHANGE
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 10111014
9951000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY1030-21h-18h-15h-12h-9h-6h-3h-24hNOW1013.71010.81012.9
−24h−18h−12h−6hnow
Air sits at the threshold — small shifts decide the day.
Mercedes, TX
Air quality
24
AQI
Good
-1 in 6h

AQI 24 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 6.3 µg/m³ (AQI 35) with a 0.75 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.

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

PM 2.5DRIVERGood
6.3μg/m³
PM 10Good
8μg/m³
NO₂Good
5μg/m³
OzoneGood
40μg/m³
UV IndexLow
0.1

What's driving it

PM × Wind × Precip

PM2.5 at 6.3 µg/m³ (AQI 35) with a 0.75 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.

PM2.5/PM10
0.75
Wind
light
Recent rain
0h in last 6h
Pattern
stagnant smoke
Mercedes, TX
Sky cover · visibility · 24h
Cloud cover
0%
CLEAR
100%0%−24h−18h−12h−6hnow

Visibility
28.7mi
UNLIMITED
89 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
12:40 UTC · Mercedes, 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
12:40 UTC · Mercedes, TX · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Mercedes, TX
Satellite · infrared · animated
Mercedes, TX
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Mercedes, TX
Almanac · Saturday, July 4
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
6:19 AM
Sunrise
1:44 AM
Daylight
13h 43m
Sunset
3:27 PM
Civil dusk
8:55 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Mercedes, TX
The moon
Waning Gibbous
81% illuminated
Moonrise
11:10 PM
Moonset
10:52 AM
In sign
♓︎ Pisces
Mercedes, TX
Microseason
Jul 1–5

Cicadas claim the scorching afternoon

bird
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Mercedes at a glance

  • Today vs. normal: 6°F below the seasonal normal for this latitude
  • Last frost: January 23 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

ZIP code: 78570

16-Day Forecast — Mercedes

  1. Sat99°78°1%
  2. Sun98°77°2%
  3. Mon100°77°6%
  4. Tue101°77°4%
  5. Wed99°78°1%
  6. Thu98°77°2%
  7. Fri99°79°2%
  8. Sat100°80°6%
  9. Sun103°77°8%
  10. Mon102°77°12%
  11. Tue102°75°10%
  12. Wed103°76°3%
  13. Thu105°76°3%
  14. Fri99°79°2%
  15. Sat100°80°3%
  16. Sun101°77°3%

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.

ZIP codes in Mercedes

  • 78570

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.