Cities / United States / California

20°

☀️ San Marcos weather

Clear sky. .

Feels like 23° Wind 3 km/h NW Humidity 91% Pressure 1012 hPa UV 0 Air Fair ☀ 06:13 - 19:30

Right now it is 20° in San Marcos with clear skies, it feels more like 23° and today's high is 30° with an overnight low of 18°. The sun rises at 06:13 and sets at 19:30, giving 13h 17m of daylight. Over the coming week highs range from 31° to 34° - a steady stretch with little day-to-day change.

San Marcos is in California, United States, sitting 177 m above sea level, with a population of about 93,000. Local time is America/Los_Angeles (UTC−7), and every time on this page is shown in it.

Next 24 hours - temperature

17° 25° 32° 32° 17° 23:00 · 20.3° · 0 mm 00:00 · 19.7° · 0 mm 01:00 · 19.2° · 0 mm 02:00 · 18.6° · 0 mm 03:00 · 18.1° · 0 mm 04:00 · 17.7° · 0 mm 05:00 · 17.3° · 0 mm 06:00 · 17° · 0 mm 07:00 · 17.6° · 0 mm 08:00 · 20.8° · 0 mm 09:00 · 24.5° · 0 mm 10:00 · 27.7° · 0 mm 11:00 · 30.4° · 0 mm 12:00 · 31.7° · 0 mm 13:00 · 31.4° · 0 mm 14:00 · 32° · 0 mm 15:00 · 31.2° · 0 mm 16:00 · 29.9° · 0 mm 17:00 · 28.1° · 0 mm 18:00 · 25.7° · 0 mm 19:00 · 24° · 0 mm 20:00 · 22.4° · 0 mm 21:00 · 21.3° · 0 mm 22:00 · 20.7° · 0 mm

Precipitation

23:00 · 0 mm 23:00 00:00 · 0 mm 01:00 · 0 mm 02:00 · 0 mm 02:00 03:00 · 0 mm 04:00 · 0 mm 05:00 · 0 mm 05:00 06:00 · 0 mm 07:00 · 0 mm 08:00 · 0 mm 08:00 09:00 · 0 mm 10:00 · 0 mm 11:00 · 0 mm 11:00 12:00 · 0 mm 13:00 · 0 mm 14:00 · 0 mm 14:00 15:00 · 0 mm 16:00 · 0 mm 17:00 · 0 mm 17:00 18:00 · 0 mm 19:00 · 0 mm 20:00 · 0 mm 20:00 21:00 · 0 mm 22:00 · 0 mm

Hour by hour

TIMETEMPFEELSRAINCONDITIONS
23:00 ☀️ 20.3° 22.6° - Clear sky
00:00 ☀️ 19.7° 22.5° - Clear sky
01:00 ☀️ 19.2° 21.4° - Clear sky
02:00 ⛅ 18.6° 20.6° - Partly cloudy
03:00 ⛅ 18.1° 20° - Partly cloudy
04:00 ☀️ 17.7° 19.3° - Clear sky
05:00 🌤️ 17.3° 19.1° - Mostly clear
06:00 ☀️ 17° 18.1° - Clear sky
07:00 🌤️ 17.6° 18.9° - Mostly clear
08:00 ☁️ 20.8° 22.8° - Overcast
09:00 ☁️ 24.5° 26.2° - Overcast
10:00 ☁️ 27.7° 29° - Overcast

Next 16 days

Today☀️ 30°18° Wed 19☁️ 32°17° Thu 20☁️ 32°18° Fri 21🌦️ 31°19°0.4mm Sat 22☀️ 33°20° Sun 23☁️ 34°20°0.1mm Mon 24☀️ 33°21° Tue 25🌦️ 31°20°1.2mm Wed 26⛅ 31°20°0.6mm Thu 27☀️ 32°19° Fri 28☀️ 31°18° Sat 29☀️ 30°17° Sun 30☀️ 28°16° Mon 31☀️ 29°15° Tue 1☀️ 28°15° Wed 2☀️ 30°15°
☀️ TodayAugust 18th Avg 23° Low 18° at 06:00 High 30° at 16:00 Wind ~14 km/h
Clear Clear Clear
00:00 20°
02:00 18°
04:00 18°
06:00 18°
08:00 21°
10:00 27°
12:00 29°
14:00 30°
16:00 30°
18:00 28°
20:00 22°
22:00 21°
☁️ WednesdayAugust 19th Avg 24° Low 17° at 06:00 High 32° at 14:00 Wind ~14 km/h
Clear Cloudy Clear
00:00 20°
02:00 19°
04:00 18°
06:00 17°
08:00 21°
10:00 28°
12:00 32°
14:00 32°
16:00 30°
18:00 26°
20:00 22°
22:00 21°
☁️ ThursdayAugust 20th Avg 24° Low 18° at 04:00 High 32° at 12:00 Wind ~15 km/h
Clear Cloudy Cloudy Clear
00:00 20°
02:00 19°
04:00 18°
06:00 18°
08:00 23°
10:00 29°
12:00 32°
14:00 31°
16:00 30°
18:00 26°
20:00 19°
22:00 19°
🌦️ FridayAugust 21st Avg 24° Low 19° at 06:00 High 31° at 12:00 0.4 mm rain Wind ~16 km/h
Rain Clear Clear
00:00 20°
02:00 19° 0.1mm
04:00 19°
06:00 19°
08:00 24°
10:00 29°
12:00 31°
14:00 30°
16:00 28°
18:00 26°
20:00 21°
22:00 20°
☀️ SaturdayAugust 22nd Avg 25° Low 20° at 05:00 High 33° at 12:00 Feels 31° Wind ~16 km/h
Clear
00:00 20°
02:00 20°
04:00 20°
06:00 20°
08:00 25°
10:00 31°
12:00 33°
14:00 31°
16:00 30°
18:00 28°
20:00 22°
22:00 22°
☁️ SundayAugust 23rd Avg 25° Low 20° at 06:00 High 34° at 12:00 0.1 mm rain Feels 32° Wind ~16 km/h
Cloudy Cloudy Cloudy Cloudy Cloudy
00:00 21°
02:00 20°
04:00 20°
06:00 20°
08:00 26°
10:00 31°
12:00 34°
14:00 31°
16:00 30°
18:00 26°
20:00 22°
22:00 21°
☀️ MondayAugust 24th Avg 26° Low 21° at 04:00 High 33° at 12:00 Wind ~15 km/h
Cloudy Clear
00:00 21°
02:00 22°
04:00 21°
06:00 22°
08:00 26°
10:00 31°
12:00 33°
14:00 32°
16:00 30°
18:00 27°
20:00 22°
22:00 21°
🌦️ TuesdayAugust 25th Avg 25° Low 20° at 04:00 High 31° at 13:00 1.2 mm rain Wind ~15 km/h
Partly Cloudy Cloudy Rain Cloudy
00:00 20°
02:00 20°
04:00 20°
06:00 21°
08:00 24°
10:00 28° 0.4mm
12:00 31°
14:00 31°
16:00 30°
18:00 27°
20:00 23°
22:00 22°
⛅ WednesdayAugust 26th Avg 25° Low 20° at 23:00 High 31° at 12:00 0.6 mm rain Wind ~15 km/h
Rain Partly Cloudy Cloudy Rain Partly Cloudy Clear
00:00 22° 0.1mm
02:00 21° 0.1mm
04:00 21°
06:00 22°
08:00 25°
10:00 29° 0.1mm
12:00 31°
14:00 30°
16:00 29°
18:00 26°
20:00 22°
22:00 20°
☀️ ThursdayAugust 27th Avg 24° Low 19° at 04:00 High 32° at 12:00 Wind ~13 km/h
Clear
00:00 20°
02:00 20°
04:00 19°
06:00 20°
08:00 24°
10:00 30°
12:00 32°
14:00 31°
16:00 29°
18:00 26°
20:00 21°
22:00 20°
☀️ FridayAugust 28th Avg 24° Low 18° at 04:00 High 31° at 12:00 Feels 29° Wind ~14 km/h
Clear
00:00 20°
02:00 19°
04:00 18°
06:00 20°
08:00 24°
10:00 29°
12:00 31°
14:00 30°
16:00 28°
18:00 25°
20:00 21°
22:00 19°
☀️ SaturdayAugust 29th Avg 23° Low 17° at 04:00 High 30° at 12:00 Wind ~14 km/h
Clear Cloudy
00:00 19°
02:00 18°
04:00 17°
06:00 19°
08:00 23°
10:00 28°
12:00 30°
14:00 29°
16:00 28°
18:00 25°
20:00 19°
22:00 18°
☀️ SundayAugust 30th Avg 21° Low 16° at 05:00 High 28° at 12:00 Wind ~16 km/h
Cloudy Clear
00:00 18°
02:00 18°
04:00 16°
06:00 17°
08:00 21°
10:00 26°
12:00 28°
14:00 28°
16:00 27°
18:00 23°
20:00 18°
22:00 17°
☀️ MondayAugust 31st Avg 21° Low 15° at 04:00 High 29° at 12:00 Wind ~16 km/h
Clear
00:00 17°
02:00 16°
04:00 15°
06:00 17°
08:00 21°
10:00 27°
12:00 29°
14:00 28°
16:00 27°
18:00 23°
20:00 18°
22:00 16°
☀️ TuesdaySeptember 1st Avg 21° Low 15° at 04:00 High 28° at 12:00 Feels 26° Wind ~16 km/h
Clear
00:00 16°
02:00 16°
04:00 15°
06:00 16°
08:00 20°
10:00 26°
12:00 28°
14:00 27°
16:00 26°
18:00 23°
20:00 17°
22:00 16°
☀️ WednesdaySeptember 2nd Avg 22° Low 15° at 04:00 High 30° at 12:00 Feels 28° Wind ~15 km/h
Clear
00:00 16°
02:00 16°
04:00 15°
06:00 17°
08:00 22°
10:00 28°
12:00 30°
14:00 29°
16:00 29°
18:00 25°
20:00 19°
22:00 18°

Sun

☀️ Sunrise 06:13 · Sunset 19:30

13h 17m of daylight · America/Los_Angeles

Air quality

PM2.5 16.4 µg/m³ - Fair

Fine for almost everyone; unusually sensitive people may notice it on a long run.

Source: Copernicus CAMS, updated hourly.

Nearby

Richland · 2.6 km Foothills of San Marcos Mobile Home Park · 2.8 km San Marcos Mobile Estates · 3.1 km Casitas del Sol Mobile Home Park · 3.5 km LaMoree Mobile Estates · 3.5 km Madrid Manor Mobile Home Park · 3.9 km

Tools for San Marcos

☔ Will it rain today? 🌅 Sunrise & sunset 🫁 Air quality 📼 Weather on this day

Common questions about San Marcos weather

Will it rain in San Marcos today?

No rain is in the forecast for San Marcos today.

What is the temperature in San Marcos right now?

It is 20° in San Marcos right now, though it feels closer to 23°. Today runs between a low of 18° and a high of 30°.

What time is sunrise and sunset in San Marcos?

The sun rises at 06:13 and sets at 19:30 local time in San Marcos today, giving 13h 17m of daylight.

What is the air quality in San Marcos?

PM2.5 in San Marcos is currently 16.4 µg/m³, which counts as Fair on the European air-quality index. Fine for almost everyone; unusually sensitive people may notice it on a long run.

How accurate is the San Marcos forecast, and how far ahead does it go?

This page shows 16 days ahead, refreshed every hour. It blends ECMWF, NOAA GFS and whichever national high-resolution model covers San Marcos best. The first three days are the dependable part - day one is usually within a degree or two - and accuracy falls off steadily after day five, so read the far end as a trend rather than a plan. We publish our measured error against real station observations on the accuracy page.

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