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Union Square, CA

61°F
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Union Square, CA Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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8 AM

63°
RealFeel® 57°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 67%
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Showers
alerts

Coastal Flood Advisory

12:43 AM Thursday - 4:00 PM Friday
alerts

Beach Hazards Statement

9:00 PM Wednesday - 6:00 PM Friday

RealFeel Shade™57°

WindS 16 mph

Air QualityFair

Max UV Index0.2 (Low)

Wind Gusts16 mph

Humidity80%

Indoor Humidity67% (Slightly Humid)

Dew Point57° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover97%

Visibility10 mi

Cloud Ceiling4000 ft

9 AM

63°
RealFeel® 55°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 77%
Chevron down
Rain
alerts

Coastal Flood Advisory

12:43 AM Thursday - 4:00 PM Friday
alerts

Beach Hazards Statement

9:00 PM Wednesday - 6:00 PM Friday

RealFeel Shade™55°

WindS 17 mph

Air QualityFair

Max UV Index0.4 (Low)

Wind Gusts33 mph

Humidity78%

Indoor Humidity66% (Slightly Humid)

Dew Point56° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover99%

Rain0.04 in

Visibility10 mi

Cloud Ceiling4000 ft

10 AM

61°
RealFeel® 55°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 49%
Chevron down
Cloudy
alerts

Coastal Flood Advisory

12:43 AM Thursday - 4:00 PM Friday
alerts

Beach Hazards Statement

9:00 PM Wednesday - 6:00 PM Friday

RealFeel Shade™55°

WindSSW 21 mph

Air QualityFair

Max UV Index0.6 (Low)

Wind Gusts38 mph

Humidity85%

Indoor Humidity67% (Slightly Humid)

Dew Point57° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling4000 ft

11 AM

61°
RealFeel® 52°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 79%
Chevron down
Rain
alerts

Coastal Flood Advisory

12:43 AM Thursday - 4:00 PM Friday
alerts

Beach Hazards Statement

9:00 PM Wednesday - 6:00 PM Friday

RealFeel Shade™52°

WindSW 21 mph

Air QualityFair

Max UV Index0.5 (Low)

Wind Gusts36 mph

Humidity85%

Indoor Humidity67% (Slightly Humid)

Dew Point57° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Rain0.05 in

Visibility5 mi

Cloud Ceiling4000 ft

12 PM

61°
RealFeel® 51°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 79%
Chevron down
Rain
alerts

Coastal Flood Advisory

12:43 AM Thursday - 4:00 PM Friday
alerts

Beach Hazards Statement

9:00 PM Wednesday - 6:00 PM Friday

RealFeel Shade™51°

WindW 23 mph

Air QualityFair

Max UV Index0.6 (Low)

Wind Gusts40 mph

Humidity86%

Indoor Humidity68% (Slightly Humid)

Dew Point57° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Rain0.05 in

Visibility5 mi

Cloud Ceiling3400 ft

1 PM

60°
RealFeel® 50°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 85%
Chevron down
Rain
alerts

Coastal Flood Advisory

12:43 AM Thursday - 4:00 PM Friday
alerts

Beach Hazards Statement

9:00 PM Wednesday - 6:00 PM Friday

RealFeel Shade™50°

WindWNW 24 mph

Air QualityFair

Max UV Index0.5 (Low)

Wind Gusts41 mph

Humidity88%

Indoor Humidity66% (Slightly Humid)

Dew Point56° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover99%

Rain0.06 in

Visibility5 mi

Cloud Ceiling2000 ft

2 PM

60°
RealFeel® 50°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 85%
Chevron down
Rain
alerts

Coastal Flood Advisory

12:43 AM Thursday - 4:00 PM Friday
alerts

Beach Hazards Statement

9:00 PM Wednesday - 6:00 PM Friday

RealFeel Shade™50°

WindWNW 22 mph

Air QualityFair

Max UV Index0.5 (Low)

Wind Gusts39 mph

Humidity86%

Indoor Humidity65% (Slightly Humid)

Dew Point56° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover96%

Rain0.06 in

Visibility5 mi

Cloud Ceiling3700 ft

3 PM

60°
RealFeel® 50°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 85%
Chevron down
Rain
alerts

Coastal Flood Advisory

12:43 AM Thursday - 4:00 PM Friday
alerts

Beach Hazards Statement

9:00 PM Wednesday - 6:00 PM Friday

RealFeel Shade™50°

WindW 21 mph

Air QualityFair

Max UV Index0.4 (Low)

Wind Gusts36 mph

Humidity84%

Indoor Humidity63% (Ideal Humidity)

Dew Point55° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover92%

Rain0.06 in

Visibility5 mi

Cloud Ceiling5400 ft

4 PM

59°
RealFeel® 49°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 82%
Chevron down
Rain
alerts

Beach Hazards Statement

9:00 PM Wednesday - 6:00 PM Friday

RealFeel Shade™49°

WindW 18 mph

Air QualityFair

Max UV Index0.2 (Low)

Wind Gusts31 mph

Humidity83%

Indoor Humidity61% (Ideal Humidity)

Dew Point54° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover90%

Rain0.06 in

Visibility5 mi

Cloud Ceiling4000 ft

5 PM

58°
RealFeel® 49°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 82%
Chevron down
Rain
alerts

Beach Hazards Statement

9:00 PM Wednesday - 6:00 PM Friday

RealFeel Shade™49°

WindW 16 mph

Air QualityFair

Max UV Index0.0 (Low)

Wind Gusts25 mph

Humidity84%

Indoor Humidity59% (Ideal Humidity)

Dew Point53° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover91%

Rain0.06 in

Visibility5 mi

Cloud Ceiling7100 ft

6 PM

57°
RealFeel® 48°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 82%
Chevron down
Rain
alerts

High Surf Warning

6:00 PM Friday - 4:00 AM Sunday

WindW 15 mph

Air QualityFair

Wind Gusts22 mph

Humidity86%

Indoor Humidity58% (Ideal Humidity)

Dew Point53° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover92%

Rain0.06 in

Visibility5 mi

Cloud Ceiling7100 ft

7 PM

58°
RealFeel® 49°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 52%
Chevron down
Showers
alerts

High Surf Warning

6:00 PM Friday - 4:00 AM Sunday

WindWNW 14 mph

Air QualityFair

Wind Gusts21 mph

Humidity84%

Indoor Humidity58% (Ideal Humidity)

Dew Point53° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover90%

Rain0.04 in

Visibility6 mi

Cloud Ceiling4000 ft

8 PM

57°
RealFeel® 52°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 48%
Chevron down
Mostly cloudy
alerts

High Surf Warning

6:00 PM Friday - 4:00 AM Sunday

WindWNW 12 mph

Air QualityFair

Wind Gusts13 mph

Humidity85%

Indoor Humidity58% (Ideal Humidity)

Dew Point53° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover80%

Visibility10 mi

Cloud Ceiling4000 ft

9 PM

57°
RealFeel® 53°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 41%
Chevron down
Intermittent clouds
alerts

High Surf Warning

6:00 PM Friday - 4:00 AM Sunday

WindWNW 9 mph

Air QualityFair

Wind Gusts9 mph

Humidity85%

Indoor Humidity57% (Ideal Humidity)

Dew Point52° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling7100 ft

10 PM

57°
RealFeel® 54°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 34%
Chevron down
Intermittent clouds
alerts

High Surf Warning

6:00 PM Friday - 4:00 AM Sunday

WindNW 8 mph

Air QualityFair

Wind Gusts9 mph

Humidity85%

Indoor Humidity57% (Ideal Humidity)

Dew Point52° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover65%

Visibility10 mi

Cloud Ceiling7100 ft

11 PM

56°
RealFeel® 54°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 34%
Chevron down
Intermittent clouds
alerts

High Surf Warning

6:00 PM Friday - 4:00 AM Sunday

WindNW 7 mph

Air QualityFair

Wind Gusts8 mph

Humidity86%

Indoor Humidity57% (Ideal Humidity)

Dew Point52° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling7100 ft

Hourly Weather Forecast for Union Square

AccuWeather's hourly forecast for Union Square provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 63° with a RealFeel® of 57°, showers with a 67% 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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World North America United States California Union Square

Weather Near Union Square:

  • Oakland, CA
  • San Francisco, CA
  • San Jose, CA
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