Current Conditions

San Marcos, California

85°F29°C

Drizzle

Wind

NW 3 mph6 km/h

Humidity

57%

Cloud Cover

20%

As of Tuesday, September 8, 2026 at 6:35 PM PDT

Today's Outlook

Night

Partly cloudy, with a low around 77°F25°C. Light wind from the SE around 3 mph4 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Drizzle	High 96°F36°C	Low 77°F25°C	Precip 0.01 in0.2 mm12%	Cloud 30%	Wind W 4 mph6 km/h	Wednesday: Partly cloudy and hot, with a high of 96°F36°C and morning low of 82°F28°C. Breezy from the W at 5 to 8 mph9 to 13 km/h. 12% chance of drizzle in the afternoon. Heat risk in the afternoon. Wednesday Night: Partly cloudy, with a low around 77°F25°C. Light wind from the SE around 3 mph4 km/h.
Clear	High 90°F32°C	Low 76°F25°C	Precip 0 in0.1 mm3%	Cloud 21%	Wind SSW 4 mph7 km/h	Thursday: Mostly clear and hot, with a high of 90°F32°C and morning low of 80°F27°C. Breezy from the SW at 6 to 8 mph9 to 13 km/h. Humid. Thursday Night: Mostly clear, with a low around 76°F25°C. Light wind from the S around 3 mph4 km/h.
Clear	High 86°F30°C	Low 73°F23°C	Precip 0 in0 mm—	Cloud 11%	Wind SSW 4 mph7 km/h	Friday: Mostly clear and hot, with a high of 86°F30°C and morning low of 77°F25°C. Breezy from the SW at 6 to 8 mph10 to 13 km/h. Humid. Friday Night: Mostly clear, with a low around 73°F23°C. Light wind from the SSW around 3 mph5 km/h.
Clear	High 83°F29°C	Low 71°F22°C	Precip 0 in0 mm—	Cloud 21%	Wind WSW 4 mph7 km/h	Saturday: Mostly clear and warm, with a high of 83°F29°C and morning low of 73°F23°C. Breezy from the WSW at 6 to 8 mph9 to 12 km/h. Humid. Saturday Night: Mostly clear, with a low around 71°F22°C. Light wind from the WSW around 3 mph4 km/h.
Clear	High 83°F28°C	Low 68°F20°C	Precip 0 in0 mm—	Cloud 22%	Wind WSW 4 mph6 km/h	Sunday: Mostly clear and warm, with a high of 83°F28°C and morning low of 71°F22°C. Breezy from the WSW at 5 to 8 mph9 to 12 km/h. Sunday Night: Partly cloudy, with a low around 68°F20°C. Light wind from the WSW around 2 mph4 km/h.
Clear	High 83°F28°C	Low 67°F20°C	Precip 0 in0 mm—	Cloud 16%	Wind SW 4 mph7 km/h	Monday: Mostly clear and warm, with a high of 83°F28°C and morning low of 70°F21°C. Breezy from the SW at 6 to 8 mph9 to 12 km/h. Monday Night: Mostly clear, with a low around 67°F20°C. Light wind from the SSW around 3 mph4 km/h.
Clear	High 81°F27°C	Low 67°F19°C	Precip 0 in0 mm—	Cloud 19%	Wind SW 4 mph7 km/h	Tuesday: Mostly clear and warm, with a high of 81°F27°C and morning low of 70°F21°C. Breezy from the SW at 6 to 8 mph9 to 13 km/h. Tuesday Night: Mostly clear, with a low around 67°F19°C. Light wind from the SW around 3 mph4 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 9	96°F36°C	77°F25°C	0.01 in0.2 mm· 12%	30%	Drizzle	W 4 mph6 km/h
DayPartly cloudy and hot, with a high of 96°F36°C and morning low of 82°F28°C. Breezy from the W at 5 to 8 mph9 to 13 km/h. 12% chance of drizzle in the afternoon. Heat risk in the afternoon. NightPartly cloudy, with a low around 77°F25°C. Light wind from the SE around 3 mph4 km/h.
	ThursdaySep 10	90°F32°C	76°F25°C	0 in0.1 mm· 3%	21%	Clear	SSW 4 mph7 km/h
DayMostly clear and hot, with a high of 90°F32°C and morning low of 80°F27°C. Breezy from the SW at 6 to 8 mph9 to 13 km/h. Humid. NightMostly clear, with a low around 76°F25°C. Light wind from the S around 3 mph4 km/h.
	FridaySep 11	86°F30°C	73°F23°C	0 in0 mm· —	11%	Clear	SSW 4 mph7 km/h
DayMostly clear and hot, with a high of 86°F30°C and morning low of 77°F25°C. Breezy from the SW at 6 to 8 mph10 to 13 km/h. Humid. NightMostly clear, with a low around 73°F23°C. Light wind from the SSW around 3 mph5 km/h.
	SaturdaySep 12	83°F29°C	71°F22°C	0 in0 mm· —	21%	Clear	WSW 4 mph7 km/h
DayMostly clear and warm, with a high of 83°F29°C and morning low of 73°F23°C. Breezy from the WSW at 6 to 8 mph9 to 12 km/h. Humid. NightMostly clear, with a low around 71°F22°C. Light wind from the WSW around 3 mph4 km/h.
	SundaySep 13	83°F28°C	68°F20°C	0 in0 mm· —	22%	Clear	WSW 4 mph6 km/h
DayMostly clear and warm, with a high of 83°F28°C and morning low of 71°F22°C. Breezy from the WSW at 5 to 8 mph9 to 12 km/h. NightPartly cloudy, with a low around 68°F20°C. Light wind from the WSW around 2 mph4 km/h.
	MondaySep 14	83°F28°C	67°F20°C	0 in0 mm· —	16%	Clear	SW 4 mph7 km/h
DayMostly clear and warm, with a high of 83°F28°C and morning low of 70°F21°C. Breezy from the SW at 6 to 8 mph9 to 12 km/h. NightMostly clear, with a low around 67°F20°C. Light wind from the SSW around 3 mph4 km/h.
	TuesdaySep 15	81°F27°C	67°F19°C	0 in0 mm· —	19%	Clear	SW 4 mph7 km/h
DayMostly clear and warm, with a high of 81°F27°C and morning low of 70°F21°C. Breezy from the SW at 6 to 8 mph9 to 13 km/h. NightMostly clear, with a low around 67°F19°C. Light wind from the SW around 3 mph4 km/h.
	WednesdaySep 16	82°F28°C	67°F19°C	0 in0.1 mm· 2%	22%	Clear	WSW 4 mph7 km/h
DayMostly clear and warm, with a high of 82°F28°C and morning low of 70°F21°C. Breezy from the WSW at 6 to 8 mph9 to 13 km/h. NightMostly clear, with a low around 67°F19°C. Light wind from the WSW around 3 mph4 km/h.
	ThursdaySep 17	82°F28°C	67°F19°C	0.01 in0.2 mm· 3%	26%	Clear	W 4 mph7 km/h
DayMostly clear and warm, with a high of 82°F28°C and morning low of 70°F21°C. Breezy from the W at 6 to 8 mph9 to 14 km/h. NightPartly cloudy, with a low around 67°F19°C. Light wind from the W around 3 mph5 km/h.
	FridaySep 18	84°F29°C	67°F20°C	0 in0 mm· —	29%	Clear	W 4 mph7 km/h
DayPartly cloudy and warm, with a high of 84°F29°C and morning low of 70°F21°C. Breezy from the W at 6 to 8 mph9 to 14 km/h. NightPartly cloudy, with a low around 67°F20°C. Light wind from the WNW around 3 mph4 km/h.
	SaturdaySep 19	84°F29°C	68°F20°C	0 in0.1 mm· 2%	31%	Clear	W 4 mph7 km/h
DayPartly cloudy and warm, with a high of 84°F29°C and morning low of 70°F21°C. Breezy from the W at 6 to 8 mph9 to 13 km/h. NightPartly cloudy, with a low around 68°F20°C. Light wind from the W around 3 mph4 km/h.
	SundaySep 20	82°F28°C	67°F20°C	0 in0 mm· —	33%	Clear	WSW 4 mph7 km/h
DayPartly cloudy and warm, with a high of 82°F28°C and morning low of 70°F21°C. Breezy from the WSW at 6 to 8 mph9 to 13 km/h. NightPartly cloudy, with a low around 67°F20°C. Light wind from the WSW around 3 mph4 km/h.
	MondaySep 21	80°F27°C	67°F19°C	0.02 in0.5 mm· 4%	35%	Clear	WSW 4 mph7 km/h
DayPartly cloudy and warm, with a high of 80°F27°C and morning low of 69°F21°C. Breezy from the WSW at 6 to 8 mph10 to 13 km/h. NightPartly cloudy, with a low around 67°F19°C. Light wind from the WSW around 3 mph5 km/h.
	TuesdaySep 22	81°F27°C	66°F19°C	0.01 in0.3 mm· 5%	37%	Clear	WSW 4 mph7 km/h
DayPartly cloudy and warm, with a high of 81°F27°C and morning low of 69°F20°C. Breezy from the WSW at 6 to 8 mph9 to 13 km/h. NightPartly cloudy, with a low around 66°F19°C. Light wind from the WSW around 3 mph5 km/h.
	WednesdaySep 23	81°F27°C	66°F19°C	0.01 in0.3 mm· 5%	36%	Clear	WSW 5 mph8 km/h
DayPartly cloudy and warm, with a high of 81°F27°C and morning low of 69°F20°C. Breezy from the WSW at 6 to 8 mph9 to 13 km/h. NightPartly cloudy, with a low around 66°F19°C. Light wind from the WSW around 3 mph4 km/h.

Nearby Cities

Escondido5 mi8 km Vista6 mi10 km Encinitas10 mi17 km Carlsbad11 mi17 km Oceanside13 mi21 km Rancho Penasquitos13 mi21 km

About This Forecast

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Coordinates: 33.1434°N, 117.1661°W·Elevation: 177m·Timezone: America/Los_Angeles·Population: 92,931