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City of Round Rock, TXRound Rock, TX Weather Forecast
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Round Rock Weather Forecast
| TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SUNDAY | MONDAY | MONDAY NIGHT | TUESDAY |
 |  |  |  | | |  | | | | |
| Chance of T-Storm | Partly Cloudy | Partly Cloudy | Mostly Clear | Partly Cloudy | Mostly Clear | Mostly Clear | Mostly Clear | Clearing | Mostly Clear | Clearing |
| Hi: 99°FHi: 37°C | Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C | Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C | Hi: 99°FHi: 37°C Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C | Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C |
| POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 413 AM CDT Wed Sep 09 2026 
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Issued: 1257 PM CDT Wed Sep 9 2026
Key Messages
Updated at 1235 PM CDT Wed Sep 9 2026- Rain chances today and Thursday over the coastal plains region as well as the Hill Country and southern Edwards Plateau.
- Low rain chances shrink back to the coastal plains Friday through the upcoming weekend, with dry weather elsewhere.
- Temperatures remain above normal through the period, with some concerns for maximum temperatures and peak heat index values near Heat Advisory levels this weekend.
Aviation
... (18Z TAFS) Issued at 1235 PM CDT Wed S...