SAN YSIDRO, CA 92143 Weather Forecast & Current Conditions

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SAN DIEGO/BROWN, CA
Current Weather

5:53 PM PDT SEP 14, 2026
Scattered Clouds
72°F
Feels Like: 72°F
Dewpoint: 61°F
Rel. Hum.: 68%
Visibility: 10 miles
Wind: SW at 9 mph
Pressure: 29.83 inches
Last 72 hours

Local Area Snow Depth

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SAN YSIDRO, CA 92143
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Partly cloudy this evening...becoming cloudy. Lows 60 to 65. Areas of winds south 10 mph.
TUESDAY
Mostly cloudy in the morning...becoming mostly sunny. Highs 73 to 77 near the coast to 80 inland. Areas of winds southeast 10 mph becoming southwest in the afternoon.
TUESDAY NIGHT
Partly cloudy in the evening...becoming mostly cloudy. Lows 59 to 65. Areas of winds southwest to 10 mph in the evening becoming light.
WEDNESDAY
Mostly cloudy in the morning...becoming mostly sunny. Highs 74 to 79. Light winds becoming west 10 mph in the afternoon.
WEDNESDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 57 to 64. Areas of winds west to 10 mph in the evening becoming light.
THURSDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 73 to 77 near the coast to 80 inland.
THURSDAY NIGHT
Mostly clear. Lows 58 to 64.
FRIDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 73 to 78 near the coast to 77 to 81 inland.
FRIDAY NIGHT
Mostly clear. Lows 58 to 64.
SATURDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 74 to 78 near the coast to 78 to 82 inland.
SATURDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 59 to 64.
SUNDAY
Partly cloudy. Highs 74 to 77 near the coast to 80 inland.
SUNDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 59 to 65.

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 AM MDT  9/14/2026
Monday
14 SEP 2026
SAN YSIDRO, CA 92143 weather forecast Day 1, 12 hours 11 AM 75° 75° Partly Cloudy 1%

0% Thunder
( 0% severe)
WSW   8 69% 64°
High 78° SAN YSIDRO, CA 92143 weather forecast Day 1, 15 hours 2 PM 77° 79° Partly Cloudy WSW   12 64% 64°
Partly Cloudy



SAN YSIDRO, CA 92143 weather forecast Day 1, 18 hours 5 PM 74° 74° Clear 1%

0% Thunder
( 0% severe)
WSW   10 74% 65°
SAN YSIDRO, CA 92143 weather forecast Day 1, 21 hours 8 PM 67° 67° Partly Cloudy SW   5 90% 64°
Tuesday
15 SEP 2026
SAN YSIDRO, CA 92143 weather forecast Day 2, 0 hours 11 PM 65° 65° Partly Cloudy 0%

0% Thunder
( 0% severe)
S   7 93% 63°
Low 63° SAN YSIDRO, CA 92143 weather forecast Day 2, 3 hours 2 AM 65° 65° Mostly Cloudy S   5 93% 63°
High 76° SAN YSIDRO, CA 92143 weather forecast Day 2, 6 hours 5 AM 64° 65° Mostly Cloudy 0%

0% Thunder
( 0% severe)
SSE   3 93% 62°

Decreasing Clouds



SAN YSIDRO, CA 92143 weather forecast Day 2, 9 hours 8 AM 65° 65° Mostly Cloudy SSE   7 93% 63°
SAN YSIDRO, CA 92143 weather forecast Day 2, 12 hours 11 AM 74° 74° Clear 0%

0% Thunder
( 0% severe)
SW   8 69% 63°
SAN YSIDRO, CA 92143 weather forecast Day 2, 15 hours 2 PM 75° 75° Clear WSW   13 69% 64°
SAN YSIDRO, CA 92143 weather forecast Day 2, 18 hours 5 PM 72° 72° Clear 0%

0% Thunder
( 0% severe)
WSW   10 76% 64°
SAN YSIDRO, CA 92143 weather forecast Day 2, 21 hours 8 PM 66° 66° Partly Cloudy WSW   3 93% 64°
Wednesday
16 SEP 2026
SAN YSIDRO, CA 92143 weather forecast Day 3, 0 hours 11 PM 64° 65° Partly Cloudy 0%

0% Thunder
( 0% severe)
S   3 97% 63°
Low 63° SAN YSIDRO, CA 92143 weather forecast Day 3, 3 hours 2 AM 64° 66° Mostly Cloudy SE   2 97% 63°
High 76° SAN YSIDRO, CA 92143 weather forecast Day 3, 6 hours 5 AM 64° 65° Mostly Cloudy 0%

0% Thunder
( 0% severe)
ESE   3 97% 63°

Decreasing Clouds



SAN YSIDRO, CA 92143 weather forecast Day 3, 9 hours 8 AM 65° 65° Partly Cloudy SSE   5 97% 64°
SAN YSIDRO, CA 92143 weather forecast Day 3, 15 hours 11 AM 73° 73° Clear 0%

0% Thunder
( 0% severe)
WSW   6 68% 62°
SAN YSIDRO, CA 92143 weather forecast Day 3, 18 hours 2 PM 74° 74° Clear W   12 69% 63°
SAN YSIDRO, CA 92143 weather forecast Day 3, 21 hours 5 PM 72° 72° Clear     W   10 76% 64°

SAN DIEGO/BROWN, CA extended weather forecast

Thursday
17 SEP 2026
Friday
18 SEP 2026
Saturday
19 SEP 2026
Sunday
20 SEP 2026
Monday
21 SEP 2026
Low 61° Low 60° Low 61° Low 62° Low 63°
High 78° High 79° High 79° High 78° High 79°
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 <!--SEARCHED_TOWN_NAME--> weather forecast Day 8
Mostly Cloudy
1% Rain
Partly Cloudy
3% Rain
Partly Cloudy
2% Rain
Mostly Cloudy
2% Rain
Mostly Cloudy
6% Rain
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