🇺🇸 Weather in Round Rock
Map Overlays:
Hourly Forecast for Round Rock
13:00
37°
1%
14:00
38°
1%
15:00
39°
0%
16:00
39°
0%
17:00
39°
0%
18:00
38°
0%
19:00
36°
0%
20:00
34°
1%
21:00
32°
1%
22:00
31°
1%
23:00
30°
2%
00:00
28°
2%
01:00
26°
2%
02:00
26°
3%
03:00
25°
3%
04:00
24°
4%
05:00
24°
5%
06:00
23°
5%
07:00
23°
5%
08:00
25°
4%
09:00
27°
3%
10:00
30°
1%
11:00
32°
1%
12:00
34°
0%
14-Day Forecast for Round Rock
2026-07-20
Sunny
39° /
24°
2026-07-21
Sunny
39° /
23°
2026-07-22
Sunny
42° /
25°
2026-07-23
Sunny
38° /
26°
2026-07-24
Sunny
39° /
26°
2026-07-25
Sunny
39° /
25°
2026-07-26
Sunny
38° /
24°
Additional Forecasts for Round Rock
Air Quality
💨 US EPA Index 2 (Moderate)
CO (Carbon Monoxide) 115.0 μg/m³
O₃ (Ozone) 82.0 μg/m³
NO₂ (Nitrogen Dioxide) 2.1 μg/m³
SO₂ (Sulphur Dioxide) 1.6 μg/m³
PM2.5 (Fine particles) 16.7 μg/m³
PM10 (Coarse particles) 26.1 μg/m³
Historical Weather
Weather Forecasts for Other Cities in United States
Weather in Round Rock — FAQ
Answers refreshed each request based on current conditions in Round Rock.
What is the weather like right now in Round Rock?
Right now in Round Rock, United States the temperature is 31.7°C (feels like 35.2°C), with sunny. Relative humidity is 55% and wind is 14.8 km/h.
What is today's high and low temperature in Round Rock?
Today's forecast high in Round Rock is 38.9°C and the overnight low is 23.8°C. The diurnal range — high minus low — depends on cloud cover; clear days swing more than overcast ones.
Will it rain in Round Rock today?
The chance of precipitation in Round Rock today is 2%. Forecast accuracy is highest within the next 6 hours and decreases steadily out to 14 days.
How often does the weather here update?
Current observations refresh every 15-60 minutes from the nearest monitoring stations operated by national meteorological agencies. The hourly forecast updates approximately every hour; the 7- and 14-day outlook is recomputed several times per day.
What does 'feels like' temperature mean?
Feels-like (apparent) temperature accounts for humidity, wind chill and direct sunshine — variables that change how the human body perceives heat or cold. On hot, humid days it can be 3-7°C above the actual reading; on cold windy days it can be 5-15°C below.
Why does the temperature in Round Rock differ from nearby cities?
Even short distances can change temperatures noticeably. Round Rock's reading reflects altitude, proximity to large bodies of water, urban heat island effects, and the exact location of the monitoring stations supplying the data. Coastal cities are typically milder and more humid than inland equivalents.