Current Conditions
San Marcos, Texas
Feels like103°F39°C
Wind
SSW 5 mph8 km/h
Humidity
42%
Cloud Cover
72%
As of Wednesday, September 2, 2026 at 1:25 PM CDT
Today's Outlook
Day
Mostly cloudy and hot, with a high of 100°F38°C and morning low of 77°F25°C. Light wind from the SSW around 5 mph8 km/h. Heat risk in the afternoon.
Night
Mostly cloudy, with a low around 89°F31°C. Breezy from the SE at 8 to 11 mph12 to 17 km/h.
7-Day Forecast
| Day | Condition | High (°F) | Low (°F) | Precip (mm) | Cloud Cover (%) | Wind (mph) | |
|---|---|---|---|---|---|---|---|
| Hot | High 100°F38°CFeels 103°F39°C | Low 77°F25°C | Precip 0 in0 mm— | Cloud 68% | Wind S 6 mph9 km/h | Wednesday: Mostly cloudy and hot, with a high of 100°F38°C and morning low of 77°F25°C. Light wind from the SSW around 5 mph8 km/h. Heat risk in the afternoon. Wednesday Night: Mostly cloudy, with a low around 89°F31°C. Breezy from the SE at 8 to 11 mph12 to 17 km/h. | |
| Drizzle | High 99°F37°CFeels 102°F39°C | Low 79°F26°C | Precip 0.02 in0.5 mm33% | Cloud 61% | Wind SSE 9 mph14 km/h | Thursday: Mostly cloudy and hot, with a high of 99°F37°C and morning low of 79°F26°C. Breezy from the S at 7 to 8 mph12 to 13 km/h. 11% chance of drizzle. Heat risk in the afternoon. Thursday Night: Mostly cloudy, with a low around 81°F27°C. Breezy from the SSE at 10 to 11 mph17 to 18 km/h. 33% chance of drizzle in the evening. | |
| Showers | High 96°F35°CFeels 101°F38°C | Low 79°F26°C | Precip 0.07 in1.9 mm52% | Cloud 56% | Wind SSE 7 mph11 km/h | Friday: Mostly cloudy and hot, with a high of 96°F35°C and morning low of 79°F26°C. Light wind from the SSE around 6 mph9 km/h. 20% chance of drizzle throughout the day. Heat risk in the afternoon. Friday Night: Mostly cloudy, with a low around 81°F27°C. Breezy from the SSE at 8 to 9 mph13 to 15 km/h. 52% chance of showers before dawn. | |
| Drizzle | High 95°F35°CFeels 101°F38°C | Low 77°F25°C | Precip 0.04 in0.9 mm34% | Cloud 51% | Wind SE 5 mph9 km/h | Saturday: Partly cloudy and hot, with a high of 95°F35°C and morning low of 77°F25°C. Light wind from the SE around 4 mph7 km/h. Heat risk in the afternoon. Saturday Night: Mostly cloudy, with a low around 79°F26°C. Breezy from the SE at 6 to 8 mph10 to 12 km/h. 34% chance of drizzle in the evening. | |
| Drizzle | High 95°F35°CFeels 101°F39°C | Low 77°F25°C | Precip 0.04 in1.1 mm23% | Cloud 36% | Wind SSE 5 mph7 km/h | Sunday: Partly cloudy and hot, with a high of 95°F35°C and morning low of 77°F25°C — feels like 102°F39°C. Light wind from the SE around 4 mph6 km/h. 22% chance of drizzle throughout the day. Heat risk in the afternoon. Sunday Night: Partly cloudy, with a low around 78°F26°C. Light wind from the SSE around 5 mph8 km/h. 23% chance of drizzle in the evening. | |
| Showers | High 95°F35°CFeels 102°F39°C | Low 77°F25°C | Precip 0.05 in1.3 mm40% | Cloud 36% | Wind SSE 6 mph9 km/h | Monday: Partly cloudy and hot, with a high of 95°F35°C and morning low of 77°F25°C — feels like 102°F39°C. Breezy from the SSE at 5 to 7 mph8 to 11 km/h. 16% chance of drizzle throughout the day. Heat risk in the afternoon. Monday Night: Partly cloudy, with a low around 79°F26°C. Breezy from the SSE at 7 to 8 mph11 to 13 km/h. 40% chance of showers in the evening. | |
| Showers | High 93°F34°CFeels 100°F38°C | Low 77°F25°C | Precip 0.11 in2.8 mm52% | Cloud 52% | Wind SSE 7 mph11 km/h | Tuesday: Mostly cloudy and hot, with a high of 93°F34°C and morning low of 77°F25°C — feels like 100°F38°C. Breezy from the SSE at 6 to 8 mph10 to 13 km/h. 21% chance of showers throughout the day. Heat risk in the afternoon. Tuesday Night: Mostly cloudy, with a low around 78°F26°C. Breezy from the SSE at 8 to 9 mph12 to 15 km/h. 52% chance of showers before dawn. |
15-Day Forecast
| Day | High | Low | Precip | Cloud Cover | Condition | Wind | |
|---|---|---|---|---|---|---|---|
| WednesdaySep 2 | 100°F38°C Feels 103°F39°C | 77°F25°C | 0 in0 mm· — | 68% | Hot | S 6 mph9 km/h | |
DayMostly cloudy and hot, with a high of 100°F38°C and morning low of 77°F25°C. Light wind from the SSW around 5 mph8 km/h. Heat risk in the afternoon. NightMostly cloudy, with a low around 89°F31°C. Breezy from the SE at 8 to 11 mph12 to 17 km/h. | |||||||
| ThursdaySep 3 | 99°F37°C Feels 102°F39°C | 79°F26°C | 0.02 in0.5 mm· 33% | 61% | Drizzle | SSE 9 mph14 km/h | |
DayMostly cloudy and hot, with a high of 99°F37°C and morning low of 79°F26°C. Breezy from the S at 7 to 8 mph12 to 13 km/h. 11% chance of drizzle. Heat risk in the afternoon. NightMostly cloudy, with a low around 81°F27°C. Breezy from the SSE at 10 to 11 mph17 to 18 km/h. 33% chance of drizzle in the evening. | |||||||
| FridaySep 4 | 96°F35°C Feels 101°F38°C | 79°F26°C | 0.07 in1.9 mm· 52% | 56% | Showers | SSE 7 mph11 km/h | |
DayMostly cloudy and hot, with a high of 96°F35°C and morning low of 79°F26°C. Light wind from the SSE around 6 mph9 km/h. 20% chance of drizzle throughout the day. Heat risk in the afternoon. NightMostly cloudy, with a low around 81°F27°C. Breezy from the SSE at 8 to 9 mph13 to 15 km/h. 52% chance of showers before dawn. | |||||||
| SaturdaySep 5 | 95°F35°C Feels 101°F38°C | 77°F25°C | 0.04 in0.9 mm· 34% | 51% | Drizzle | SE 5 mph9 km/h | |
DayPartly cloudy and hot, with a high of 95°F35°C and morning low of 77°F25°C. Light wind from the SE around 4 mph7 km/h. Heat risk in the afternoon. NightMostly cloudy, with a low around 79°F26°C. Breezy from the SE at 6 to 8 mph10 to 12 km/h. 34% chance of drizzle in the evening. | |||||||
| SundaySep 6 | 95°F35°C Feels 101°F39°C | 77°F25°C | 0.04 in1.1 mm· 23% | 36% | Drizzle | SSE 5 mph7 km/h | |
DayPartly cloudy and hot, with a high of 95°F35°C and morning low of 77°F25°C — feels like 102°F39°C. Light wind from the SE around 4 mph6 km/h. 22% chance of drizzle throughout the day. Heat risk in the afternoon. NightPartly cloudy, with a low around 78°F26°C. Light wind from the SSE around 5 mph8 km/h. 23% chance of drizzle in the evening. | |||||||
| MondaySep 7 | 95°F35°C Feels 102°F39°C | 77°F25°C | 0.05 in1.3 mm· 40% | 36% | Showers | SSE 6 mph9 km/h | |
DayPartly cloudy and hot, with a high of 95°F35°C and morning low of 77°F25°C — feels like 102°F39°C. Breezy from the SSE at 5 to 7 mph8 to 11 km/h. 16% chance of drizzle throughout the day. Heat risk in the afternoon. NightPartly cloudy, with a low around 79°F26°C. Breezy from the SSE at 7 to 8 mph11 to 13 km/h. 40% chance of showers in the evening. | |||||||
| TuesdaySep 8 | 93°F34°C Feels 100°F38°C | 77°F25°C | 0.11 in2.8 mm· 52% | 52% | Showers | SSE 7 mph11 km/h | |
DayMostly cloudy and hot, with a high of 93°F34°C and morning low of 77°F25°C — feels like 100°F38°C. Breezy from the SSE at 6 to 8 mph10 to 13 km/h. 21% chance of showers throughout the day. Heat risk in the afternoon. NightMostly cloudy, with a low around 78°F26°C. Breezy from the SSE at 8 to 9 mph12 to 15 km/h. 52% chance of showers before dawn. | |||||||
| WednesdaySep 9 | 93°F34°C Feels 100°F38°C | 77°F25°C | 0.12 in3 mm· 45% | 55% | Showers | SSE 7 mph11 km/h | |
DayMostly cloudy and hot, with a high of 93°F34°C and morning low of 77°F25°C — feels like 100°F38°C. Breezy from the SSE at 7 to 8 mph11 to 13 km/h. 32% chance of showers throughout the day. Heat risk in the afternoon. NightMostly cloudy, with a low around 78°F25°C. Breezy from the SSE at 7 to 9 mph12 to 14 km/h. 45% chance of showers throughout the night. | |||||||
| ThursdaySep 10 | 95°F35°C Feels 101°F39°C | 77°F25°C | 0.04 in0.9 mm· 20% | 47% | Drizzle | SSE 7 mph12 km/h | |
DayPartly cloudy and hot, with a high of 95°F35°C and morning low of 77°F25°C — feels like 102°F39°C. Breezy from the S at 7 to 8 mph11 to 13 km/h. 16% chance of drizzle throughout the day. Heat risk in the afternoon. NightPartly cloudy, with a low around 78°F25°C. Breezy from the SSE at 8 to 10 mph13 to 15 km/h. 20% chance of drizzle in the evening. | |||||||
| FridaySep 11 | 96°F36°C Feels 102°F39°C | 77°F25°C | 0.02 in0.5 mm· 13% | 41% | Drizzle | S 8 mph13 km/h | |
DayPartly cloudy and hot, with a high of 96°F36°C and morning low of 77°F25°C — feels like 102°F39°C. Breezy from the S at 8 to 9 mph12 to 14 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 78°F26°C. Breezy from the SSE at 9 to 10 mph14 to 17 km/h. 13% chance of drizzle in the evening. | |||||||
| SaturdaySep 12 | 96°F35°C Feels 102°F39°C | 78°F25°C | 0.06 in1.4 mm· 18% | 50% | Drizzle | S 9 mph14 km/h | |
DayMostly cloudy and hot, with a high of 96°F35°C and morning low of 78°F25°C — feels like 102°F39°C. Breezy from the S at 8 to 9 mph13 to 15 km/h. 16% chance of drizzle throughout the day. Heat risk in the afternoon. NightPartly cloudy, with a low around 79°F26°C. Breezy from the SSE at 9 to 10 mph15 to 16 km/h. 18% chance of drizzle before dawn. | |||||||
| SundaySep 13 | 94°F35°C Feels 100°F38°C | 78°F25°C | 0.09 in2.2 mm· 25% | 53% | Drizzle | SSE 9 mph15 km/h | |
DayMostly cloudy and hot, with a high of 94°F35°C and morning low of 78°F25°C — feels like 100°F38°C. Breezy from the S at 9 to 10 mph14 to 16 km/h. 20% chance of drizzle throughout the day. Heat risk in the afternoon. NightMostly cloudy, with a low around 79°F26°C. Breezy from the SSE at 9 to 10 mph15 to 17 km/h. 25% chance of drizzle throughout the night. | |||||||
| MondaySep 14 | 94°F34°C Feels 100°F38°C | 78°F25°C | 0.13 in3.4 mm· 23% | 50% | Showers | SSE 9 mph15 km/h | |
DayMostly cloudy and hot, with a high of 94°F34°C and morning low of 78°F25°C — feels like 100°F38°C. Breezy from the S at 9 to 10 mph14 to 16 km/h. 20% chance of showers throughout the day. Heat risk in the afternoon. NightMostly cloudy, with a low around 78°F26°C. Breezy from the SSE at 9 to 10 mph15 to 16 km/h. 23% chance of showers throughout the night. | |||||||
| TuesdaySep 15 | 94°F34°C Feels 99°F37°C | 77°F25°C | 0.1 in2.5 mm· 22% | 47% | Showers | SSE 8 mph14 km/h | |
DayPartly cloudy and hot, with a high of 94°F34°C and morning low of 77°F25°C. Breezy from the S at 8 to 9 mph13 to 15 km/h. 20% chance of showers throughout the day. Heat risk in the afternoon. NightPartly cloudy, with a low around 78°F26°C. Breezy from the SSE at 9 mph14 km/h. 22% chance of drizzle throughout the night. | |||||||
| WednesdaySep 16 | 94°F35°C Feels 98°F37°C | 76°F24°C | 0.06 in1.4 mm· 17% | 48% | Drizzle | SSE 8 mph12 km/h | |
DayMostly cloudy and hot, with a high of 94°F35°C and morning low of 76°F24°C. Breezy from the S at 7 to 8 mph12 to 13 km/h. 15% chance of drizzle throughout the day. Heat risk in the afternoon. NightPartly cloudy, with a low around 77°F25°C. Breezy from the SSE at 8 to 9 mph13 to 14 km/h. 17% chance of drizzle throughout the night. | |||||||
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Coordinates: 29.8833°N, 97.9414°W·Elevation: 188m·Timezone: America/Chicago·Population: 60,684