San Marcos (CA)
10 day weather forecast for San Marcos
Thursday, October 29th, 2026, at 10:29 AM
Today
21° 15°
Tomorrow
21° 16°
Saturday
21° 15°
Sunday
20° 15°
Monday
23° 13°
Tuesday
24° 14°
Wednesday
22° 14°
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San Marcos Weather Pages
San Marcos weather forecast
The weather forecast for San Marcos over the next 5 days indicates rainy conditions with temperatures ranging from 20 °C to 23 °C.
Rain is expected from today until Sunday.
Wind speeds are expected to be breezy, averaging around 16.9 km/h.
San Marcos 14 days weather forecast
This weeks weather in San Marcos. Click on a date for detailed forecasts
Thu. 29
21°
15°
0.3 mm
Fri. 30
21°
16°
1.2 mm
Sat. 31
21°
15°
0.4 mm
Sun. 1
20°
15°
6.8 mm
Mon. 2
23°
13°
0 mm
Tue. 3
24°
14°
0 mm
Wed. 4
22°
14°
0.4 mm
Thu. 5
20°
15°
0.1 mm
Fri. 6
20°
14°
2.9 mm
Sat. 7
21°
15°
1.2 mm
Sun. 8
22°
13°
0 mm
Mon. 9
23°
14°
0 mm
Tue. 10
22°
15°
0 mm
Wed. 11
21°
15°
1.3 mm
You can click on date
Access San Marcos weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
Rain Forecast for the Next 14 Days in San Marcos
A total of 14.5 mm is expected over 5 rainy days. The wettest day is Sunday 1, with 6.8 mm. Click a day for details.
San Marcos Wind Speed Forecast Chart
The windiest day is tomorrow, with winds up to 20.5 km/h from the SW. The calmest day is Monday 9. The average daily maximum is 12.7 km/h.
Thu. 29
16.9 km/h
W · Gentle breeze
Fri. 30
20.5 km/h
SW · Moderate breeze
Sat. 31
9.4 km/h
S · Light breeze
Sun. 1
16.2 km/h
W · Gentle breeze
Mon. 2
16.2 km/h
NW · Gentle breeze
Tue. 3
10.4 km/h
NW · Light breeze
Wed. 4
10.1 km/h
SW · Light breeze
Thu. 5
9.7 km/h
W · Light breeze
Fri. 6
15.5 km/h
W · Gentle breeze
Sat. 7
8.6 km/h
W · Light breeze
Sun. 8
8.6 km/h
NW · Light breeze
Mon. 9
7.2 km/h
NW · Light breeze
Tue. 10
7.9 km/h
SW · Light breeze
Wed. 11
20.2 km/h
SW · Moderate breeze
CalmLight breezeGentle breezeModerate breezeFresh breeze
Frequently asked questions about the weather in San Marcos
How warm is it in San Marcos over the next 14 days?
Over the next two weeks, temperatures in San Marcos are expected to range from around 13 °C on the coldest nights up to about 24 °C on the warmest days. Use this range to plan what to pack and wear.
Will it rain in San Marcos in the next two weeks?
Yes - rain is expected on about 5 of the next 14 days in San Marcos, with roughly 14.5 mm of rainfall in total. It is worth keeping an umbrella or raincoat handy.
How windy is it in San Marcos?
Maximum wind speeds in San Marcos are forecast to reach about 20.5 km/h at their peak over the next 14 days.
How accurate is the 14-day forecast for San Marcos?
Our San Marcos forecast uses leading meteorological models and is most reliable over the next few days. Long-range days beyond a week show general trends and can change, so check back closer to the date for updates.
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Where is San Marcos?Get accurate weather forecasts for San Marcos, located at latitude 33.143 and longitude -117.166. Stay updated with localized weather information tailored for San Marcos.
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