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

Round Rock, Texas Weather

Cicadas claim the scorching afternoon. Day 15 of summer. Read this microseason across nine climate regions →

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

Round Rock, TX
Saturday, July 4 at 11:38 PM
83
°
Clear
Feels like
88°
Humidity
63%
Wind
6 mph
Sunrise
1:33 AM
Sunset
3:36 PM
Round Rock, TX
Hour by hour · 24h
24-Hour ForecastRound Rock, TX: 24-hour forecast. Temperatures range from 76 to 97 degrees Fahrenheit.
L 76°H 97°
Round Rock, TX
7-day forecast
  1. Today
    Jul 4
    Overcast
    95°77°
  2. Sunday
    Jul 5
    Overcast
    97°76°+2°
  3. Monday
    Jul 6
    Heavy Showers
    25%
    0.65″
    92°74°-5°
  4. Tuesday
    Jul 7
    Light Showers
    16%
    98°72°+6°
  5. Wednesday
    Jul 8
    Light Drizzle
    100°73°+2°
  6. Thursday
    Jul 9
    Overcast
    102°77°+2°
  7. Friday
    Jul 10
    Partly Cloudy
    102°74°
Round Rock, TX
Anemometer · 24h winds · from true
NESW
From · True
SSE
154° · backing 12°
Direction
SSE
154°
Sustained
6
mph
Gust
14
mph
Peak 24h
22
avg 7
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 7 · pk 22 @ 12:00a
01020MPHB1B2B3B4B5-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 2010SUSTGUST
−24h−18h−12h−6hnow
Light breeze backing 12° from the sse.
Round Rock, TX
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
988.0
+0.5 mb in 3h · steady · 29.18 inHg
Now
988.0
mb
3h
+0.5
mb
12h
-3.5
mb
24h
-2.9
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 987991
9809859909951000STORM|RAIN-21h-18h-15h-12h-9h-6h-3h-24hNOW991.2986.7987.4
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Round Rock, TX
Air quality
33
AQI
Good
-2 in 6h

AQI 33 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 5.1 µg/m³ (AQI 28) with a 0.81 fine-to-coarse ratio and 6 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
5.1μg/m³
PM 10Good
6μg/m³
NO₂Good
5μg/m³
OzoneGood
47μg/m³
UV IndexLow
0.0

What's driving it

PM × Wind × Precip

PM2.5 at 5.1 µg/m³ (AQI 28) with a 0.81 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.

PM2.5/PM10
0.81
Wind
light
Recent rain
0h in last 6h
Pattern
stagnant smoke
Round Rock, TX
Sky cover · visibility · 24h
Cloud cover
0%
CLEAR
100%0%−24h−18h−12h−6hnow

Visibility
57.3mi
UNLIMITED
102 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
04:38 UTC · Round Rock, 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
04:38 UTC · Round Rock, TX · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Round Rock, TX
Satellite · infrared · animated
Round Rock, TX
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Round Rock, TX
Almanac · Saturday, July 4
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
6:06 AM
Sunrise
1:33 AM
Daylight
14h 03m
Sunset
3:36 PM
Civil dusk
9:05 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Round Rock, TX
The moon
Waning Gibbous
76% illuminated
Moonrise
11:44 PM
Moonset
11:47 AM
In sign
♓︎ Pisces
Round Rock, TX
Microseason
Jul 1–5

Cicadas claim the scorching afternoon

plant
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Round Rock at a glance

  • Today vs. normal: 83°F — typical for the season
  • Last frost: February 18 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

ZIP codes: 78664, 78665, 78681

16-Day Forecast — Round Rock

  1. Sat95°77°5%
  2. Sun97°76°2%
  3. Mon92°74°25%
  4. Tue98°72°16%
  5. Wed100°73°3%
  6. Thu102°77°0%
  7. Fri102°74°5%
  8. Sat97°75°14%
  9. Sun92°73°17%
  10. Mon80°72°16%
  11. Tue89°73°11%
  12. Wed95°73°7%
  13. Thu96°75°10%
  14. Fri98°75°11%
  15. Sat99°74°13%
  16. Sun100°75°18%

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

Live wind & temperature near Round Rock

Right now in the garden

Peak growing season

As of July 5, 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 — Round Rock

SPC includes Round Rock in the general thunderstorm area tomorrow — no severe risk, but storms are possible.

  • TODAYNONENo severe risk
  • 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.

ZIP codes in Round Rock

  • 78681
  • 78664
  • 78665
  • 78682
  • 78683

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.