SAN YSIDRO, CA 92143 Weather Forecast & Current Conditions

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SAN DIEGO/BROWN, CA
Current Weather

2:53 AM PDT OCT 13, 2026
Broken Clouds
57°F
Feels Like: 57°F
Dewpoint: 52°F
Rel. Hum.: 83%
Visibility:
Wind: Calm
Pressure: 29.95 inches
Last 72 hours

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SAN YSIDRO, CA 92143
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TODAY
Mostly sunny. Highs 69 to 72. Light winds becoming west 10 mph this afternoon.
TONIGHT
Mostly clear. Lows 53 to 59. Areas of winds north 10 mph in the evening becoming light.
WEDNESDAY
Sunny. Highs 76 to 80. Light winds becoming west 10 mph in the afternoon.
WEDNESDAY NIGHT
Mostly clear. Lows 58 to 63. Areas of winds north 10 mph in the evening becoming light.
THURSDAY
Mostly sunny. Highs 83 to 88. Areas of winds northeast 10 mph.
THURSDAY NIGHT
Mostly clear. Lows 62 to 67.
FRIDAY
Mostly sunny. Highs 88 to 92.
FRIDAY NIGHT
Mostly clear. Lows around 70.
SATURDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 82 to 87 near the coast to 86 to 89 inland.
SATURDAY NIGHT
Mostly clear. Lows 64 to 69.
SUNDAY
Mostly sunny. Highs 80 to 85 near the coast to 85 to 89 inland.
SUNDAY NIGHT
Mostly clear. Lows 63 to 68.
MONDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 76 to 81 near the coast to 81 to 85 inland.

Visible Weather Satellite
SAN YSIDRO, CA 92143
Infrared Weather Satellite
SAN YSIDRO, CA 92143
NEXRAD Weather Radar
SAN YSIDRO, CA 92143

SAN DIEGO/BROWN, CA 3 hourly weather forecast

weather forecast created  6:00 PM MDT 10/12/2026
Tuesday
13 OCT 2026
SAN YSIDRO, CA 92143 weather forecast Day 1, 0 hours 11 PM 60° 59° Partly Cloudy 8%

0% Thunder
( 2% severe)
S   7 81% 54°
Low 57° SAN YSIDRO, CA 92143 weather forecast Day 1, 3 hours 2 AM 59° 58° Mostly Cloudy SSE   6 83% 54°
High 69° SAN YSIDRO, CA 92143 weather forecast Day 1, 6 hours 5 AM 58° 58° Mostly Cloudy 3%

0% Thunder
( 1% severe)
ESE   5 87% 54°

Decreasing Clouds



SAN YSIDRO, CA 92143 weather forecast Day 1, 9 hours 8 AM 58° 57° Mostly Cloudy ESE   7 90% 55°
SAN YSIDRO, CA 92143 weather forecast Day 1, 12 hours 11 AM 65° 65° Partly Cloudy 0%

0% Thunder
( 0% severe)
NW   5 63% 52°
SAN YSIDRO, CA 92143 weather forecast Day 1, 15 hours 2 PM 66° 66° Clear WNW   10 63% 53°
SAN YSIDRO, CA 92143 weather forecast Day 1, 18 hours 5 PM 66° 66° Clear 0%

0% Thunder
( 0% severe)
WNW   12 68% 55°
SAN YSIDRO, CA 92143 weather forecast Day 1, 21 hours 8 PM 61° 60° Clear N   7 81% 55°
Wednesday
14 OCT 2026
SAN YSIDRO, CA 92143 weather forecast Day 2, 0 hours 11 PM 59° 57° Clear 0%

0% Thunder
( 0% severe)
NNE   10 83% 54°
Low 55° SAN YSIDRO, CA 92143 weather forecast Day 2, 3 hours 2 AM 57° 56° Clear ENE   7 80% 51°
High 73° SAN YSIDRO, CA 92143 weather forecast Day 2, 6 hours 5 AM 56° 55° Clear 0%

0% Thunder
( 0% severe)
ESE   6 69% 46°

Clear



SAN YSIDRO, CA 92143 weather forecast Day 2, 9 hours 8 AM 57° 55° Clear ENE   9 67% 46°
SAN YSIDRO, CA 92143 weather forecast Day 2, 12 hours 11 AM 70° 70° Clear 0%

0% Thunder
( 0% severe)
NNW   2 42% 46°
SAN YSIDRO, CA 92143 weather forecast Day 2, 15 hours 2 PM 73° 73° Clear NW   9 43% 49°
SAN YSIDRO, CA 92143 weather forecast Day 2, 18 hours 5 PM 71° 71° Clear 0%

0% Thunder
( 0% severe)
WNW   9 49% 51°
SAN YSIDRO, CA 92143 weather forecast Day 2, 21 hours 8 PM 64° 64° Clear NNW   6 67% 53°

SAN DIEGO/BROWN, CA extended weather forecast

Thursday
15 OCT 2026
Friday
16 OCT 2026
Saturday
17 OCT 2026
Sunday
18 OCT 2026
Monday
19 OCT 2026
Low 55° Low 62° Low 66° Low 60° Low 59°
High 87° High 89° High 85° High 81° High 77°
SAN YSIDRO, CA 92143 weather forecast Day 3 SAN YSIDRO, CA 92143 weather forecast Day 4 SAN YSIDRO, CA 92143 weather forecast Day 5 SAN YSIDRO, CA 92143 weather forecast Day 6 SAN YSIDRO, CA 92143 weather forecast Day 7
Clear
1% Rain
Clear
2% Rain
Clear
2% Rain
Clear
3% Rain
Partly Cloudy
8% Rain
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