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San Marcos, CA

86°F
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San Marcos

California

86°
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San Marcos, CA Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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1 PM

86°
RealFeel® 90°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
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rain drop 0%
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Mostly sunny
alerts

Beach Hazards Statement

5:00 AM Friday - 4:00 PM Wednesday

RealFeel Shade™84°

Heat Index86°

WindW 9 mph

Air QualityFair

Max UV Index6.2 (High)

Wind Gusts15 mph

Humidity44%

Indoor Humidity44% (Slightly Humid)

Dew Point62° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover15%

Visibility10 mi

Cloud Ceiling33300 ft

2 PM

87°
RealFeel® 90°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny
alerts

Beach Hazards Statement

5:00 AM Friday - 4:00 PM Wednesday

RealFeel Shade™84°

Heat Index87°

WindW 9 mph

Air QualityFair

Max UV Index5.5 (Moderate)

Wind Gusts17 mph

Humidity44%

Indoor Humidity44% (Slightly Humid)

Dew Point62° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

86°
RealFeel® 89°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
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rain drop 0%
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Mostly sunny
alerts

Beach Hazards Statement

5:00 AM Friday - 4:00 PM Wednesday

RealFeel Shade™84°

Heat Index87°

WindW 8 mph

Air QualityFair

Max UV Index4.4 (Moderate)

Wind Gusts16 mph

Humidity46%

Indoor Humidity46% (Humid)

Dew Point63° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

84°
RealFeel® 86°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
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rain drop 0%
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Partly sunny
alerts

Beach Hazards Statement

5:00 AM Friday - 4:00 PM Wednesday

RealFeel Shade™82°

Heat Index85°

WindW 8 mph

Air QualityFair

Max UV Index3.1 (Moderate)

Wind Gusts14 mph

Humidity49%

Indoor Humidity49% (Humid)

Dew Point63° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover43%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

82°
RealFeel® 83°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
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rain drop 0%
Chevron down
Partly sunny
alerts

Beach Hazards Statement

5:00 AM Friday - 4:00 PM Wednesday

RealFeel Shade™81°

Heat Index83°

WindW 7 mph

Air QualityFair

Max UV Index2.0 (Low)

Wind Gusts10 mph

Humidity53%

Indoor Humidity53% (Humid)

Dew Point64° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

80°
RealFeel® 80°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
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rain drop 0%
Chevron down
Partly sunny
alerts

Beach Hazards Statement

5:00 AM Friday - 4:00 PM Wednesday

RealFeel Shade™80°

Heat Index80°

WindW 6 mph

Air QualityFair

Max UV Index0.9 (Low)

Wind Gusts7 mph

Humidity59%

Indoor Humidity59% (Humid)

Dew Point64° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

76°
RealFeel® 76°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Partly cloudy
alerts

Beach Hazards Statement

5:00 AM Friday - 4:00 PM Wednesday

WindW 5 mph

Air QualityFair

Wind Gusts5 mph

Humidity71%

Indoor Humidity71% (Humid)

Dew Point66° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

78°
RealFeel® 79°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
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Mostly clear
alerts

Beach Hazards Statement

5:00 AM Friday - 4:00 PM Wednesday

WindSSW 4 mph

Air QualityFair

Wind Gusts4 mph

Humidity65%

Indoor Humidity65% (Humid)

Dew Point65° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

75°
RealFeel® 75°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear
alerts

Beach Hazards Statement

5:00 AM Friday - 4:00 PM Wednesday

WindE 4 mph

Air QualityFair

Wind Gusts5 mph

Humidity69%

Indoor Humidity69% (Humid)

Dew Point65° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

72°
RealFeel® 72°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear
alerts

Beach Hazards Statement

5:00 AM Friday - 4:00 PM Wednesday

WindE 5 mph

Air QualityFair

Wind Gusts5 mph

Humidity75%

Indoor Humidity75% (Humid)

Dew Point64° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

72°
RealFeel® 72°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear
alerts

Beach Hazards Statement

5:00 AM Friday - 4:00 PM Wednesday

WindE 4 mph

Air QualityFair

Wind Gusts5 mph

Humidity74%

Indoor Humidity74% (Humid)

Dew Point64° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for San Marcos

AccuWeather's hourly forecast for San Marcos provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 86° with a RealFeel® of 90°, mostly sunny with a 0% chance of precipitation. Each hourly forecast includes wind speed, humidity, air quality, UV index, and the AccuLumen Brightness Index™, AccuWeather's measure of perceived outdoor light intensity. Forecasts are generated by proprietary systems developed by AccuWeather meteorologists since 1962.

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