Will it rain today in San Marcos, CA

Updated September 25 · Live conditions refresh automatically.

Umbrella

No need

No need for an umbrella in the afternoon.

TodayTomorrow

MustNeedLikely neededLikely no needNo need

No need

Loading hourly rain details… Chance is shown in percent; rain amount in inches; wind in mph; humidity and cloud cover in percentages.

Peak 0%Total 0 in

Hour	Chance	Clouds	Wind	Temp	Feels	Humidity
Clear	0%	7%	3 mph G4	68°	68°	87%
Clear	0%	8%	2 mph G3	67°	68°	90%
Clear	0%	10%	2 mph G3	66°	67°	90%
Clear	0%	11%	1 mph G2	66°	67°	90%

Clear

Chance 0%Clouds 7%

Rain0 in

Wind3 mph G4

Temp68°

Feels68°

Humidity87%

Clear

Chance 0%Clouds 8%

Rain0 in

Wind2 mph G3

Temp67°

Feels68°

Humidity90%

Clear

Chance 0%Clouds 10%

Rain0 in

Wind2 mph G3

Temp66°

Feels67°

Humidity90%

Clear

Chance 0%Clouds 11%

Rain0 in

Wind1 mph G2

Temp66°

Feels67°

Humidity90%

Quick answer — San Marcos, CA

Will it rain today in San Marcos, CA: No need. No need for an umbrella in the afternoon.

Updated 9/25/2026 · Live conditions refresh automatically.