Union Square Park, CA Weather Forecast & Current Conditions

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Union Square Park, CA Weather Maps

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Union Square Park Weather Map
UTC Time: 10/31/2026, 01:50
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Union Square Park, CA Regional Weather

Expires:202610310200;;996472
ASUS46 KSTO 310110
RWRCA 

NORTHERN AND CENTRAL CA REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE SACRAMENTO CA 
600 PM PDT FRI OCT 30 2026

NOTE: FAIR INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO
SIGNIFICANT WEATHER AND/OR OBSTRUCTIONS TO VISIBILITY.


CAZ005>008-065-075-310200-
BAY AREA
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
SANTA ROSA     CLEAR     64  42  44 SW7       29.83R                  
NAPA           CLEAR     62  52  69 SW9       29.83S                  
CONCORD        CLEAR     65  47  52 SW7       29.83S                  
OAKLAND        MOCLDY    62  51  67 W10       29.85S                  
SAN FRAN ARPT  MOCLDY    61  50  67 W13       29.85R                  
LIVERMORE      PTCLDY    64  48  56 W13       29.83R                  
HAYWARD        PTCLDY    62  50  64 W9        29.85R                  
MOFFETT ARPT   CLEAR     64  48  55 NW5       29.84R                  
SAN JOSE ARPT  PTCLDY    64  50  60 N14       29.84R                  
$$

SKY/WX - Weather  TMP - Temperature  DP - Dew Point  RH - Humidity
WIND - Wind Direction/Speed PRES - Barometric Pressure VSB - Visibility
WCI - Wind Chill Index E13G22 Wind - East Wind 13 mph/Gusts of 22 mph

Union Square Park, CA

Tonight
Mostly Cloudy
50°10°
0%
Saturday
Sprinkles
62°/ 55° 17°/ 13°
0%
Sunday
Sprinkles
58°/ 55° 14°/ 13°
0%
Monday
Mostly Cloudy
60°/ 55° 16°/ 13°
0%
Tuesday
Rain
65°18°
N/A
Wednesday
Rain
65°/ 55° 18°/ 13°
N/A
Thursday
Rain
62°/ 50° 17°/ 10°
N/A

Night: Partly cloudy in the evening then becoming mostly cloudy. Lows in the 50s. West winds 5 to 15 mph.

San Francisco Bay Shoreline, CA

COASTAL FLOOD ADVISORY IN EFFECT UNTIL 6 PM PDT SUNDAY
Tonight
Mostly Cloudy
52°11°
0%
Saturday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Sunday
Sprinkles
65°/ 45° 18°/ 7°
0%
Monday
Mostly Cloudy
68°/ 48° 20°/ 9°
0%
Tue-Tue Night
Rain
65°18°
N/A
Wednesday
Rain
65°/ 48° 18°/ 9°
N/A
Thursday
Rain
65°/ 55° 18°/ 13°
N/A
Friday
Mostly Cloudy
65°18°
0%

Night: Partly cloudy in the evening then becoming mostly cloudy. Lows in the lower 50s. West winds 10 to 20 mph...becoming south up to 5 mph after midnight.

North Bay Interior Valleys, CA

COASTAL FLOOD ADVISORY IN EFFECT UNTIL 6 PM PDT SUNDAY
Tonight
Mostly Cloudy
52°11°
0%
Saturday
Sprinkles
65°/ 38° 18°/ 3°
0%
Sunday
Cloudy
60°/ 38° 16°/ 3°
0%
Monday
Cloudy
72°/ 38° 22°/ 3°
0%
Tue-Tue Night
Rain
72°22°
N/A
Wednesday
Rain
60°/ 52° 16°/ 11°
N/A
Thursday
Rain
68°/ 52° 20°/ 11°
N/A

Night: Mostly cloudy. Patchy fog after midnight. Lows in the 40s to lower 50s. West winds 5 to 10 mph.

Point Reyes National Seashore, CA

COASTAL FLOOD ADVISORY IN EFFECT UNTIL 6 PM PDT SATURDAY
Tonight
Mostly Cloudy
48°9°
0%
Saturday
Mostly Cloudy
58°/ 48° 14°/ 9°
0%
Sunday
Sunny
62°/ 48° 17°/ 9°
0%
Monday
Mostly Cloudy
62°/ 50° 17°/ 10°
0%
Tue-Tue Night
Rain
62°17°
N/A
Wednesday
Rain
62°/ 52° 17°/ 11°
N/A
Thursday
Rain
60°/ 50° 16°/ 10°
N/A
Friday
Mostly Cloudy
62°17°
0%

Night: Mostly cloudy. Lows in the upper 40s. Northwest winds 5 to 10 mph.

San Francisco Peninsula Coast, CA

COASTAL FLOOD ADVISORY IN EFFECT UNTIL 6 PM PDT SATURDAY
Tonight
Mostly Cloudy
50°10°
0%
Saturday
Sprinkles
60°/ 45° 16°/ 7°
0%
Sunday
Rain Showers
60°/ 45° 16°/ 7°
20%
Monday
Mostly Cloudy
65°/ 50° 18°/ 10°
0%
Tuesday
Rain
65°18°
N/A
Wednesday
Rain
65°/ 48° 18°/ 9°
N/A
Thursday
Rain
62°17°
N/A
Friday
Rain
62°17°
N/A

Night: Mostly cloudy. Lows near 50. Northwest winds 5 to 10 mph.

East Bay Interior Valleys, CA

Tonight
Mostly Cloudy
50°10°
0%
Saturday
Mostly Cloudy
65°/ 48° 18°/ 9°
0%
Sunday
Cloudy
65°/ 45° 18°/ 7°
0%
Monday
Cloudy
68°/ 45° 20°/ 7°
0%
Tuesday
Rain
68°/ 48° 20°/ 9°
N/A
Wed-Wed Night
Cloudy
68°20°
0%
Thursday
Rain
65°/ 45° 18°/ 7°
N/A

Night: Partly cloudy in the evening then becoming mostly cloudy. Lows near 50. West winds up to 5 mph in the evening... becoming light.

East Bay Hills, CA

Tonight
Mostly Cloudy
52°11°
0%
Saturday
Mostly Cloudy
60°/ 48° 16°/ 9°
0%
Sunday
Cloudy
60°/ 45° 16°/ 7°
0%
Monday
Cloudy
62°/ 45° 17°/ 7°
0%
Tuesday
Cloudy
62°/ 48° 17°/ 9°
0%
Wed-Wed Night
Cloudy
62°17°
0%
Thursday
Mostly Cloudy
62°/ 50° 17°/ 10°
0%

Night: Partly cloudy in the evening then becoming mostly cloudy. Lows in the lower 50s. Southwest winds around 5 mph.

Marin Coastal Range, CA

Tonight
Mostly Cloudy
48°9°
0%
Saturday
Sprinkles
58°/ 48° 14°/ 9°
0%
Sunday
Sprinkles
60°/ 48° 16°/ 9°
0%
Monday
Mostly Cloudy
62°/ 50° 17°/ 10°
0%
Tuesday
Rain
62°/ 52° 17°/ 11°
N/A
Wed Night
Cloudy
52°11°
0%
Thursday
Rain
62°/ 50° 17°/ 10°
N/A
Friday
Cloudy
62°17°
0%

Night: Mostly cloudy. Lows in the upper 40s. West winds around 5 mph.

Vallejo, CA

Tonight
Mostly Cloudy
48°9°
0%
Saturday
Mostly Cloudy
63°/ 47° 17°/ 8°
0%
Sunday
Cloudy
65°/ 45° 18°/ 7°
0%
Monday
Sunny
65°/ 46° 18°/ 8°
0%
Tuesday
Rain
66°/ 48° 19°/ 9°
N/A
Wed Night
Cloudy
51°11°
0%
Thursday
Rain
65°/ 50° 18°/ 10°
N/A
Friday
Cloudy
67°19°
0%

Night: Mostly clear in the evening then becoming mostly cloudy. Lows 48 to 54. Southwest winds up to 10 mph.

Santa Cruz Mountains, CA

Tonight
Mostly Cloudy
48°9°
0%
Saturday
Mostly Cloudy
62°/ 45° 17°/ 7°
0%
Sunday
Sprinkles
62°/ 45° 17°/ 7°
0%
Monday
Mostly Cloudy
68°/ 45° 20°/ 7°
0%
Tuesday
Rain
55°/ 45° 13°/ 7°
N/A
Wednesday
Rain
65°/ 45° 18°/ 7°
N/A
Thursday
Rain
65°/ 45° 18°/ 7°
N/A
Friday
Cloudy
65°18°
0%

Night: Partly cloudy in the evening then becoming mostly cloudy. Patchy fog after midnight. Lows in the upper 40s. Light winds.

San Jose, CA

Tonight
Mostly Cloudy
48°9°
0%
Saturday
Mostly Cloudy
65°/ 48° 18°/ 9°
0%
Sunday
Cloudy
65°/ 45° 18°/ 7°
0%
Monday
Cloudy
70°/ 45° 21°/ 7°
0%
Tuesday
Mostly Cloudy
68°/ 45° 20°/ 7°
0%
Wed-Wed Night
Cloudy
68°20°
0%
Thursday
Rain
68°/ 48° 20°/ 9°
N/A
Friday
Cloudy
68°20°
0%

Night: Partly cloudy in the evening then becoming mostly cloudy. Areas of fog after midnight. Lows in the upper 40s. Northwest winds 5 to 10 mph...becoming south after midnight.

Fairfield, CA

Tonight
Mostly Cloudy
50°10°
0%
Saturday
Mostly Cloudy
64°/ 49° 18°/ 9°
0%
Sunday
Cloudy
65°/ 44° 18°/ 7°
0%
Monday
Sunny
65°/ 48° 18°/ 9°
0%
Tuesday
Rain
66°/ 50° 19°/ 10°
N/A
Wednesday
Mostly Cloudy
67°/ 50° 19°/ 10°
0%
Thu Night-Fri
Clear
50°10°
0%

Night: Mostly clear in the evening then becoming mostly cloudy. Lows around 50. Southwest winds up to 10 mph.

Tracy, CA

Tonight
Mostly Cloudy
53°12°
0%
Saturday
Mostly Cloudy
65°/ 51° 18°/ 11°
0%
Sunday
Sunny
65°/ 45° 18°/ 7°
0%
Monday
Sunny
67°/ 47° 19°/ 8°
0%
Tuesday
Cloudy
67°/ 48° 19°/ 9°
0%
Wednesday
Cloudy
67°/ 48° 19°/ 9°
0%
Thursday
Cloudy
66°/ 49° 19°/ 9°
0%

Night: Partly cloudy in the evening then becoming mostly cloudy. Lows around 53. Light winds.

Walnut Grove, CA

Tonight
Mostly Cloudy
49°9°
0%
Saturday
Mostly Cloudy
64°/ 47° 18°/ 8°
0%
Sunday
Mostly Cloudy
65°/ 43° 18°/ 6°
0%
Monday
Sunny
65°/ 44° 18°/ 7°
0%
Tuesday
Cloudy
66°/ 46° 19°/ 8°
0%
Wednesday
Cloudy
67°/ 47° 19°/ 8°
0%
Thursday
Cloudy
66°/ 47° 19°/ 8°
0%

Night: Mostly clear in the evening then becoming mostly cloudy. Lows 49 to 54. Light winds.

East Diablo Range Above 1000 ft, CA

Tonight
Mostly Cloudy
44°7°
0%
Saturday
Mostly Cloudy
53°/ 41° 12°/ 5°
0%
Sunday
Sunny
53°/ 40° 12°/ 4°
0%
Monday
Sunny
57°/ 43° 14°/ 6°
0%
Tuesday
Sunny
57°/ 42° 14°/ 6°
0%
Wed-Wed Night
Clear
56°13°
0%
Thursday
Cloudy
55°/ 42° 13°/ 6°
0%
Friday
Sunny
55°13°
0%

Night: Mostly cloudy. Lows 44 to 54. Light winds.

Esparto, CA

Tonight
Mostly Cloudy
46°8°
0%
Saturday
Mostly Cloudy
63°/ 48° 17°/ 9°
0%
Sunday
Sunny
64°/ 44° 18°/ 7°
0%
Monday
Sunny
65°/ 45° 18°/ 7°
0%
Tuesday
Rain
66°/ 47° 19°/ 8°
N/A
Wednesday
Mostly Cloudy
66°/ 46° 19°/ 8°
0%
Thursday
Rain
65°/ 46° 18°/ 8°
N/A

Night: Mostly clear in the evening then becoming mostly cloudy. Lows 46 to 52. Light winds.

Eastern Santa Clara Hills, CA

Tonight
Mostly Cloudy
40°4°
0%
Saturday
Sprinkles
52°/ 38° 11°/ 3°
0%
Sunday
Cloudy
52°/ 45° 11°/ 7°
0%
Monday
Cloudy
58°/ 38° 14°/ 3°
0%
Tue Night
Mostly Cloudy
48°9°
0%
Wednesday
Cloudy
55°13°
0%
Thursday
Cloudy
55°/ 48° 13°/ 9°
0%
Friday
Cloudy
55°13°
0%

Night: Partly cloudy in the evening then becoming mostly cloudy. Lows in the 40s. Southwest winds around 5 mph.

San Joaquin County Delta, CA

Tonight
Mostly Cloudy
51°11°
0%
Saturday
Mostly Cloudy
65°/ 49° 18°/ 9°
0%
Sunday
Cloudy
66°/ 42° 19°/ 6°
0%
Monday
Sunny
66°/ 44° 19°/ 7°
0%
Tuesday
Cloudy
67°/ 46° 19°/ 8°
0%
Wednesday
Cloudy
68°/ 49° 20°/ 9°
0%
Thursday
Cloudy
67°/ 49° 19°/ 9°
0%

Night: Partly cloudy in the evening then becoming mostly cloudy. Lows around 51. Light winds.

North Bay Interior Mountains, CA

Tonight
Mostly Cloudy
48°9°
0%
Saturday
Sprinkles
62°/ 52° 17°/ 11°
0%
Sunday
Sunny
65°/ 45° 18°/ 7°
0%
Monday
Cloudy
58°/ 48° 14°/ 9°
0%
Tuesday
Rain
58°/ 50° 14°/ 10°
N/A
Wed Night
Cloudy
45°7°
0%
Thursday
Rain
65°/ 48° 18°/ 9°
N/A

Night: Mostly cloudy. Lows in the upper 40s. West winds up to 5 mph in the evening...becoming light.

Northern Monterey Bay, CA

COASTAL FLOOD ADVISORY IN EFFECT UNTIL 6 PM PDT SUNDAY
Tonight
Mostly Cloudy
48°9°
0%
Saturday
Mostly Cloudy
62°/ 48° 17°/ 9°
0%
Sunday
Cloudy
65°/ 45° 18°/ 7°
0%
Monday
Mostly Cloudy
68°/ 48° 20°/ 9°
0%
Tuesday
Mostly Cloudy
68°/ 48° 20°/ 9°
0%
Wed Night
Mostly Cloudy
48°9°
0%
Thursday
Rain
65°/ 48° 18°/ 9°
N/A
Friday
Mostly Cloudy
65°18°
0%

Night: Mostly cloudy. Patchy fog after midnight. Lows in the upper 40s. North winds up to 5 mph.

Names listed above may include county names.

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