SAN YSIDRO, CA 92143 Weather Forecast & Current Conditions

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SAN DIEGO/BROWN, CA
Current Weather

8:53 AM PST JAN 2, 2026
Broken Clouds
64°F
Feels Like: 65°F
Dewpoint: 61°F
Rel. Hum.: 90%
Visibility: 9 miles
Wind: S at 5 mph
Pressure: 30.08 inches
Last 72 hours

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SAN YSIDRO, CA 92143
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TODAY
Partly cloudy with a slight chance of showers. Highs around 68. Light winds. Chance of measurable precipitation 20 percent.
TONIGHT
Mostly cloudy with a slight chance of showers. Patchy fog. Lows 54 to 57. Light winds. Chance of measurable precipitation 20 percent.
SATURDAY
Cloudy. A slight chance of showers in the afternoon. Highs 65 to 68. Areas of winds south 10 mph. Chance of measurable precipitation 20 percent.
SATURDAY NIGHT
Showers likely. Lows 54 to 57. Areas of winds south 10 mph. Chance of measurable precipitation 70 percent.
SUNDAY
Cloudy in the morning...becoming mostly cloudy. A chance of showers. Highs 64 to 68. Areas of winds south 10 to 15 mph. Chance of measurable precipitation 50 percent.
SUNDAY NIGHT
Showers likely. Lows 51 to 55.
MONDAY
Mostly cloudy. A chance of showers. Highs 62 to 65.
MONDAY NIGHT
Mostly cloudy. A slight chance of showers in the evening, then a chance of showers overnight. Lows 47 to 51.
TUESDAY
Mostly cloudy with a chance of showers. Highs around 63.
TUESDAY NIGHT
Partly cloudy. A chance of showers. Lows 46 to 50.
WEDNESDAY
Partly cloudy with a slight chance of showers. Highs 61 to 64.
WEDNESDAY NIGHT
Partly cloudy with a slight chance of showers. Lows 45 to 49.
THURSDAY
Partly cloudy with a slight chance of showers. Highs 60 to 63.

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  5:00 AM MST  1/ 2/2026
Friday
2 JAN 2026
SAN YSIDRO, CA 92143 weather forecast Day 1, 12 hours 10 AM 64° 65° Mostly Cloudy 4%

0% Thunder
( 3% severe)
SSE   5 84% 59°
High 68° SAN YSIDRO, CA 92143 weather forecast Day 1, 15 hours 1 PM 67° 67° Mostly Cloudy SSW   9 78% 60°
Mostly Cloudy



SAN YSIDRO, CA 92143 weather forecast Day 1, 18 hours 4 PM 65° 65° Mostly Cloudy 5%

0% Thunder
( 3% severe)
SSW   7 81% 59°
SAN YSIDRO, CA 92143 weather forecast Day 1, 21 hours 7 PM 61° 62° Mostly Cloudy SE   3 93% 59°
Saturday
3 JAN 2026
SAN YSIDRO, CA 92143 weather forecast Day 2, 0 hours 10 PM 60° 61° Mostly Cloudy 5%

0% Thunder
( 1% severe)
SE   3 93% 58°
Low 57° SAN YSIDRO, CA 92143 weather forecast Day 2, 3 hours 1 AM 59° 60° Mostly Cloudy SSE   2 96% 58°
High 67° SAN YSIDRO, CA 92143 weather forecast Day 2, 6 hours 4 AM 58° 59° Mostly Cloudy 8%

0% Thunder
( 1% severe)
SE   2 96% 57°

Mostly Cloudy



SAN YSIDRO, CA 92143 weather forecast Day 2, 9 hours 7 AM 57° 57° Overcast SE   3 100% 57°
SAN YSIDRO, CA 92143 weather forecast Day 2, 12 hours 10 AM 62° 62° Mostly Cloudy 9%

0% Thunder
( 1% severe)
SSE   6 87% 58°
SAN YSIDRO, CA 92143 weather forecast Day 2, 15 hours 1 PM 65° 65° Mostly Cloudy SSW   10 78% 58°
SAN YSIDRO, CA 92143 weather forecast Day 2, 18 hours 4 PM 63° 63° Mostly Cloudy 28%
RAIN
<.01 in
0% Thunder
( 1% severe)
SSW   8 84% 58°
SAN YSIDRO, CA 92143 weather forecast Day 2, 21 hours 7 PM 60° 59° Mostly Cloudy S   8 93% 58°
Sunday
4 JAN 2026
SAN YSIDRO, CA 92143 weather forecast Day 3, 0 hours 10 PM 60° 59° Mostly Cloudy 35%
RAIN
.01–.1 in
0% Thunder
( 5% severe)
SSE   7 90% 57°
Low 57° SAN YSIDRO, CA 92143 weather forecast Day 3, 3 hours 1 AM 59° 59° Mostly Cloudy SSE   5 96% 58°
High 64° SAN YSIDRO, CA 92143 weather forecast Day 3, 6 hours 4 AM 58° 58° Mostly Cloudy 27%
RAIN
.25–.5 in
0% Thunder
( 7% severe)
SSE   5 100% 58°

Mostly Cloudy

Chance of Rain

SAN YSIDRO, CA 92143 weather forecast Day 3, 9 hours 7 AM 57° 56° Mostly Cloudy SSE   6 100% 57°
SAN YSIDRO, CA 92143 weather forecast Day 3, 15 hours 10 AM 61° 60° Mostly Cloudy 22%
RAIN
.1–.25 in
0% Thunder
( 6% severe)
S   9 93% 59°
SAN YSIDRO, CA 92143 weather forecast Day 3, 18 hours 1 PM 63° 62° Mostly Cloudy SW   13 87% 59°
SAN YSIDRO, CA 92143 weather forecast Day 3, 21 hours 4 PM 61° 60° Mostly Cloudy     SW   9 87% 57°

SAN DIEGO/BROWN, CA extended weather forecast

Monday
5 JAN 2026
Tuesday
6 JAN 2026
Wednesday
7 JAN 2026
Thursday
8 JAN 2026
Friday
9 JAN 2026
Low 53° Low 51° Low 48° Low 47° Low 42°
High 64° High 66° High 61° High 62° High 63°
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
Overcast
65% Rain
Overcast
61% Rain
Overcast
75% Rain
Mostly Cloudy
42% Rain
Partly Cloudy
17% Rain
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