SAN YSIDRO, CA 92143 Weather Forecast & Current Conditions

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SAN DIEGO/BROWN, CA
Current Weather

4:53 AM PDT APR 6, 2026
59°F
Feels Like: 59°F
Dewpoint: 46°F
Rel. Hum.: 62%
Visibility: 9 miles
Wind: Calm
Pressure: 29.98 inches
Last 72 hours

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SAN YSIDRO, CA 92143
Weather Forecast

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Snow Depth pages
TODAY
Partly cloudy with patchy fog this morning...becoming mostly sunny. Highs 69 to 73 near the coast to 74 to 77 inland. Light winds becoming west 10 mph this afternoon.
TONIGHT
Partly cloudy in the evening...becoming cloudy overnight with patchy fog. Lows 49 to 57. Areas of winds west to 10 mph in the evening becoming light.
TUESDAY
Partly cloudy with patchy fog in the morning... Becoming mostly sunny. Highs 68 to 73 near the coast to 74 to 77 inland. Light winds becoming west 10 mph in the afternoon.
TUESDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 52 to 56. Light winds.
WEDNESDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 70 to 75 near the coast to 76 to 79 inland. Areas of winds south to 10 mph.
WEDNESDAY NIGHT
Mostly clear in the evening...becoming mostly cloudy. Lows 53 to 58.
THURSDAY
Mostly cloudy in the morning...becoming partly cloudy. Highs 68 to 73 near the coast to 73 to 76 inland.
THURSDAY NIGHT
Partly cloudy. Lows 53 to 58.
FRIDAY
Partly cloudy in the morning, then mostly sunny with a slight chance of showers in the afternoon. Highs 69 to 74 near the coast to 73 to 76 inland.
FRIDAY NIGHT
Partly cloudy. A slight chance of showers in the evening, then a chance of showers overnight. Lows 53 to 58.
SATURDAY
Showers likely. A slight chance of thunderstorms in the afternoon. Highs 66 to 70.
SATURDAY NIGHT
Partly cloudy with a chance of showers. Lows 51 to 55.
SUNDAY
Mostly cloudy in the morning...becoming partly cloudy. A slight chance of showers. Highs 66 to 69.

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  4/ 5/2026
Monday
6 APR 2026
SAN YSIDRO, CA 92143 weather forecast Day 1, 0 hours 11 PM 62° 63° Mostly Cloudy 2%

0% Thunder
( 0% severe)
SW   2 75% 54°
Low 57° SAN YSIDRO, CA 92143 weather forecast Day 1, 3 hours 2 AM 59° 60° Mostly Cloudy SE   1 83% 54°
High 74° SAN YSIDRO, CA 92143 weather forecast Day 1, 6 hours 5 AM 58° 59° Mostly Cloudy 1%

0% Thunder
( 0% severe)
SE   1 80% 52°

Decreasing Clouds



SAN YSIDRO, CA 92143 weather forecast Day 1, 9 hours 8 AM 60° 61° Mostly Cloudy SSW   2 81% 54°
SAN YSIDRO, CA 92143 weather forecast Day 1, 12 hours 11 AM 70° 70° Partly Cloudy 1%

0% Thunder
( 0% severe)
W   6 55% 53°
SAN YSIDRO, CA 92143 weather forecast Day 1, 15 hours 2 PM 72° 72° Clear W   12 55% 55°
SAN YSIDRO, CA 92143 weather forecast Day 1, 18 hours 5 PM 68° 68° Clear 0%

0% Thunder
( 0% severe)
W   10 65% 56°
SAN YSIDRO, CA 92143 weather forecast Day 1, 21 hours 8 PM 61° 61° Partly Cloudy W   6 87% 57°
Tuesday
7 APR 2026
SAN YSIDRO, CA 92143 weather forecast Day 2, 0 hours 11 PM 59° 60° Mostly Cloudy 0%

0% Thunder
( 0% severe)
WNW   2 93% 57°
Low 56° SAN YSIDRO, CA 92143 weather forecast Day 2, 3 hours 2 AM 57° 58° Mostly Cloudy N   2 96% 56°
High 73° SAN YSIDRO, CA 92143 weather forecast Day 2, 6 hours 5 AM 56° 56° Mostly Cloudy 0%

0% Thunder
( 0% severe)
SE   1 96% 55°

Decreasing Clouds



SAN YSIDRO, CA 92143 weather forecast Day 2, 9 hours 8 AM 58° 59° Partly Cloudy SSE   2 90% 55°
SAN YSIDRO, CA 92143 weather forecast Day 2, 12 hours 11 AM 69° 69° Clear 0%

0% Thunder
( 0% severe)
W   6 59% 54°
SAN YSIDRO, CA 92143 weather forecast Day 2, 15 hours 2 PM 72° 72° Clear W   10 57% 56°
SAN YSIDRO, CA 92143 weather forecast Day 2, 18 hours 5 PM 69° 69° Clear 0%

0% Thunder
( 0% severe)
W   9 63% 56°
SAN YSIDRO, CA 92143 weather forecast Day 2, 21 hours 8 PM 62° 63° Clear W   3 84% 57°

SAN DIEGO/BROWN, CA extended weather forecast

Wednesday
8 APR 2026
Thursday
9 APR 2026
Friday
10 APR 2026
Saturday
11 APR 2026
Sunday
12 APR 2026
Low 53° Low 56° Low 56° Low 55° Low 51°
High 75° High 74° High 71° High 69° High 65°
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
Partly Cloudy
1% Rain
Overcast
2% Rain
Overcast
17% Rain
Overcast
77% Rain
Overcast
46% Rain
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