Current Conditions

San Marcos, Texas

93°F34°C

Drizzle

Wind

E 6 mph9 km/h

Humidity

40%

Cloud Cover

36%

As of Tuesday, September 22, 2026 at 8:12 PM CDT

Today's Outlook

Night

Mostly cloudy, with a low around 77°F25°C. Breezy from the SE at 6 to 7 mph9 to 12 km/h. 26% chance of drizzle in the evening.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Drizzle	High 95°F35°CFeels 99°F37°C	Low 74°F23°C	Precip 0.01 in0.3 mm26%	Cloud 75%	Wind SE 5 mph8 km/h	Wednesday: Mostly cloudy and hot, with a high of 95°F35°C and morning low of 74°F23°C. Breezy from the ESE at 5 to 7 mph7 to 12 km/h. Heat risk in the afternoon. Wednesday Night: Mostly cloudy, with a low around 77°F25°C. Breezy from the SE at 6 to 7 mph9 to 12 km/h. 26% chance of drizzle in the evening.
Hot	High 94°F34°CFeels 98°F37°C	Low 74°F23°C	Precip 0.01 in0.2 mm7%	Cloud 70%	Wind ESE 5 mph8 km/h	Thursday: Mostly cloudy and hot, with a high of 94°F34°C and morning low of 74°F23°C. Breezy from the ESE at 5 to 7 mph8 to 11 km/h. Heat risk in the afternoon. Thursday Night: Mostly cloudy, with a low around 76°F25°C. Breezy from the SE at 5 to 7 mph8 to 11 km/h.
Hot	High 94°F35°C	Low 75°F24°C	Precip 0.01 in0.2 mm5%	Cloud 54%	Wind SE 4 mph7 km/h	Friday: Mostly cloudy and hot, with a high of 94°F35°C and morning low of 75°F24°C. Light wind from the SE around 4 mph6 km/h. Heat risk in the afternoon. Friday Night: Mostly cloudy, with a low around 77°F25°C. Light wind from the SE around 5 mph8 km/h.
Partly Cloudy	High 94°F35°C	Low 74°F23°C	Precip 0 in0 mm—	Cloud 68%	Wind S 5 mph9 km/h	Saturday: Mostly cloudy and hot, with a high of 94°F35°C and morning low of 74°F23°C. Light wind from the SSW around 5 mph7 km/h. Humid. Saturday Night: Mostly cloudy, with a low around 76°F24°C. Breezy from the SSE at 6 to 7 mph10 to 11 km/h.
Drizzle	High 96°F36°C	Low 75°F24°C	Precip 0.01 in0.3 mm13%	Cloud 51%	Wind S 6 mph9 km/h	Sunday: Partly cloudy and hot, with a high of 96°F36°C and morning low of 75°F24°C. Light wind from the SSW around 5 mph8 km/h. Heat risk in the afternoon. Sunday Night: Mostly cloudy, with a low around 77°F25°C. Breezy from the SSE at 7 to 8 mph10 to 13 km/h. 13% chance of drizzle in the evening.
Hot	High 95°F35°C	Low 75°F24°C	Precip 0.02 in0.5 mm9%	Cloud 44%	Wind S 7 mph11 km/h	Monday: Partly cloudy and hot, with a high of 95°F35°C and morning low of 75°F24°C. Light wind from the S around 6 mph9 km/h. Heat risk in the afternoon. Monday Night: Mostly cloudy, with a low around 77°F25°C. Breezy from the SSE at 7 to 9 mph12 to 15 km/h.
Showers	High 93°F34°CFeels 98°F36°C	Low 76°F25°C	Precip 0.11 in2.7 mm29%	Cloud 58%	Wind S 8 mph13 km/h	Tuesday: Mostly cloudy and hot, with a high of 93°F34°C and morning low of 76°F25°C. Breezy from the S at 8 to 9 mph13 to 15 km/h. 23% chance of showers throughout the day. Heat risk in the afternoon. Tuesday Night: Mostly cloudy, with a low around 77°F25°C. Breezy from the SSE at 8 to 9 mph13 to 14 km/h. 29% chance of showers throughout the night.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 23	95°F35°C Feels 99°F37°C	74°F23°C	0.01 in0.3 mm· 26%	75%	Drizzle	SE 5 mph8 km/h
DayMostly cloudy and hot, with a high of 95°F35°C and morning low of 74°F23°C. Breezy from the ESE at 5 to 7 mph7 to 12 km/h. Heat risk in the afternoon. NightMostly cloudy, with a low around 77°F25°C. Breezy from the SE at 6 to 7 mph9 to 12 km/h. 26% chance of drizzle in the evening.
	ThursdaySep 24	94°F34°C Feels 98°F37°C	74°F23°C	0.01 in0.2 mm· 7%	70%	Hot	ESE 5 mph8 km/h
DayMostly cloudy and hot, with a high of 94°F34°C and morning low of 74°F23°C. Breezy from the ESE at 5 to 7 mph8 to 11 km/h. Heat risk in the afternoon. NightMostly cloudy, with a low around 76°F25°C. Breezy from the SE at 5 to 7 mph8 to 11 km/h.
	FridaySep 25	94°F35°C	75°F24°C	0.01 in0.2 mm· 5%	54%	Hot	SE 4 mph7 km/h
DayMostly cloudy and hot, with a high of 94°F35°C and morning low of 75°F24°C. Light wind from the SE around 4 mph6 km/h. Heat risk in the afternoon. NightMostly cloudy, with a low around 77°F25°C. Light wind from the SE around 5 mph8 km/h.
	SaturdaySep 26	94°F35°C	74°F23°C	0 in0 mm· —	68%	Partly Cloudy	S 5 mph9 km/h
DayMostly cloudy and hot, with a high of 94°F35°C and morning low of 74°F23°C. Light wind from the SSW around 5 mph7 km/h. Humid. NightMostly cloudy, with a low around 76°F24°C. Breezy from the SSE at 6 to 7 mph10 to 11 km/h.
	SundaySep 27	96°F36°C	75°F24°C	0.01 in0.3 mm· 13%	51%	Drizzle	S 6 mph9 km/h
DayPartly cloudy and hot, with a high of 96°F36°C and morning low of 75°F24°C. Light wind from the SSW around 5 mph8 km/h. Heat risk in the afternoon. NightMostly cloudy, with a low around 77°F25°C. Breezy from the SSE at 7 to 8 mph10 to 13 km/h. 13% chance of drizzle in the evening.
	MondaySep 28	95°F35°C	75°F24°C	0.02 in0.5 mm· 9%	44%	Hot	S 7 mph11 km/h
DayPartly cloudy and hot, with a high of 95°F35°C and morning low of 75°F24°C. Light wind from the S around 6 mph9 km/h. Heat risk in the afternoon. NightMostly cloudy, with a low around 77°F25°C. Breezy from the SSE at 7 to 9 mph12 to 15 km/h.
	TuesdaySep 29	93°F34°C Feels 98°F36°C	76°F25°C	0.11 in2.7 mm· 29%	58%	Showers	S 8 mph13 km/h
DayMostly cloudy and hot, with a high of 93°F34°C and morning low of 76°F25°C. Breezy from the S at 8 to 9 mph13 to 15 km/h. 23% chance of showers throughout the day. Heat risk in the afternoon. NightMostly cloudy, with a low around 77°F25°C. Breezy from the SSE at 8 to 9 mph13 to 14 km/h. 29% chance of showers throughout the night.
	WednesdaySep 30	89°F32°C	74°F24°C	0.25 in6.3 mm· 30%	54%	Showers	SE 7 mph12 km/h
DayMostly cloudy and hot, with a high of 89°F32°C and morning low of 74°F24°C. Breezy from the NNW at 8 mph12 km/h. 30% chance of showers throughout the day. Humid. NightMostly cloudy, with a low around 76°F24°C. Breezy from the SE at 7 to 8 mph12 to 13 km/h. 27% chance of showers throughout the night.
	ThursdayOct 1	89°F31°C	69°F21°C	0.09 in2.4 mm· 17%	38%	Drizzle	NE 7 mph11 km/h
DayPartly cloudy and hot, with a high of 89°F31°C and morning low of 69°F21°C. Breezy from the NNE at 7 to 8 mph11 to 12 km/h. 17% chance of drizzle throughout the day. NightPartly cloudy, with a low around 71°F22°C. Breezy from the ENE at 6 to 7 mph10 to 11 km/h. 15% chance of drizzle throughout the night.
	FridayOct 2	89°F31°C	67°F20°C	0.08 in2 mm· 14%	42%	Drizzle	ESE 7 mph10 km/h
DayPartly cloudy and hot, with a high of 89°F31°C and morning low of 67°F20°C. Breezy from the ESE at 7 to 8 mph11 to 12 km/h. 14% chance of drizzle throughout the day. NightPartly cloudy, with a low around 69°F21°C. Breezy from the ESE at 6 to 8 mph10 to 12 km/h. 13% chance of drizzle throughout the night.
	SaturdayOct 3	87°F31°C	69°F21°C	0.13 in3.3 mm· 21%	52%	Showers	SE 7 mph11 km/h
DayMostly cloudy and hot, with a high of 87°F31°C and morning low of 69°F21°C. Breezy from the ESE at 7 to 8 mph11 to 13 km/h. 21% chance of showers throughout the day. NightPartly cloudy, with a low around 71°F22°C. Breezy from the SE at 7 to 8 mph11 to 12 km/h. 15% chance of showers throughout the night.
	SundayOct 4	85°F30°C	69°F20°C	0.16 in4.1 mm· 22%	50%	Showers	NE 7 mph12 km/h
DayMostly cloudy and warm, with a high of 85°F30°C and morning low of 69°F20°C. Breezy from the NNE at 8 mph12 km/h. 22% chance of showers throughout the day. NightPartly cloudy, with a low around 71°F21°C. Breezy from the ENE at 7 mph11 km/h. 20% chance of showers throughout the night.
	MondayOct 5	84°F29°C	66°F19°C	0.14 in3.5 mm· 21%	48%	Showers	NE 7 mph11 km/h
DayMostly cloudy and warm, with a high of 84°F29°C and morning low of 66°F19°C. Breezy from the NE at 7 to 8 mph12 to 13 km/h. 21% chance of drizzle throughout the day. NightPartly cloudy, with a low around 68°F20°C. Breezy from the ENE at 7 mph11 km/h. 18% chance of showers throughout the night.
	TuesdayOct 6	86°F30°C	66°F19°C	0.06 in1.4 mm· 14%	41%	Drizzle	NE 7 mph11 km/h
DayPartly cloudy and warm, with a high of 86°F30°C and morning low of 66°F19°C. Breezy from the NE at 7 to 8 mph12 to 13 km/h. 14% chance of drizzle throughout the day. NightPartly cloudy, with a low around 68°F20°C. Breezy from the ENE at 6 to 7 mph10 to 11 km/h. 10% chance of drizzle throughout the night.
	WednesdayOct 7	85°F30°C	65°F18°C	0.07 in1.7 mm· 12%	35%	Drizzle	NNE 7 mph11 km/h
DayPartly cloudy and warm, with a high of 85°F30°C and morning low of 65°F18°C. Breezy from the NNE at 7 to 8 mph11 to 13 km/h. 12% chance of drizzle throughout the day. NightPartly cloudy, with a low around 67°F20°C. Light wind from the NE around 6 mph10 km/h. 11% chance of drizzle throughout the night.

Nearby Cities

Kyle8 mi13 km New Braunfels17 mi27 km Canyon Lake19 mi31 km Seguin22 mi35 km Cibolo28 mi45 km Austin29 mi47 km

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

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Coordinates: 29.8833°N, 97.9414°W·Elevation: 188m·Timezone: America/Chicago·Population: 60,684