SAN YSIDRO, CA 92143 Weather Forecast & Current Conditions

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SAN DIEGO/BROWN, CA
Current Weather

7:53 AM PDT APR 13, 2026
Broken Clouds
57°F
Feels Like: 57°F
Dewpoint: 52°F
Rel. Hum.: 83%
Visibility: 10 miles
Wind: Calm
Pressure: 30.05 inches
Last 72 hours

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SAN YSIDRO, CA 92143
Weather Forecast

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TODAY
Partly cloudy with a chance of showers. Highs around 64. Areas of winds west 10 to 15 mph. Gusts to 30 mph...becoming 25 mph this afternoon. Chance of measurable precipitation 40 percent.
TONIGHT
Partly cloudy. Lows 49 to 54. Areas of winds west 10 to 15 mph with gusts to 25 mph becoming southeast overnight.
TUESDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 64 to 68 near the coast to 69 inland. Areas of winds southeast 10 mph becoming west in the afternoon.
TUESDAY NIGHT
Mostly clear. Lows 48 to 54. Areas of winds northwest 10 mph in the evening becoming light.
WEDNESDAY
Partly cloudy. Highs 65 to 70 near the coast to 71 inland. Light winds becoming west 10 to 15 mph in the afternoon.
WEDNESDAY NIGHT
Partly cloudy in the evening...becoming mostly cloudy. Lows 50 to 55.
THURSDAY
Mostly cloudy in the morning...becoming partly cloudy. Highs 65 to 70 near the coast to 69 to 72 inland.
THURSDAY NIGHT
Partly cloudy. Lows 50 to 55.
FRIDAY
Partly cloudy in the morning...becoming sunny. Highs 67 to 72 near the coast to 73 to 76 inland.
FRIDAY NIGHT
Mostly clear. Lows 49 to 53.
SATURDAY
Partly cloudy. Highs 72 to 77 near the coast to 80 inland.
SATURDAY NIGHT
Partly cloudy. Lows 51 to 55.
SUNDAY
Partly cloudy. Highs 71 to 75 near the coast to 76 to 79 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  4/12/2026
Monday
13 APR 2026
SAN YSIDRO, CA 92143 weather forecast Day 1, 0 hours 11 PM 60° 60° Mostly Cloudy 26%
RAIN
.01–.1 in
0% Thunder
( 8% severe)
W   5 84% 55°
Low 56° SAN YSIDRO, CA 92143 weather forecast Day 1, 3 hours 2 AM 58° 58° Mostly Cloudy W   3 87% 54°
High 65° SAN YSIDRO, CA 92143 weather forecast Day 1, 6 hours 5 AM 57° 58° Mostly Cloudy 26%
RAIN
.5–1 in
0% Thunder
( 5% severe)
W   2 83% 52°

Partly Cloudy

Chance of Rain

SAN YSIDRO, CA 92143 weather forecast Day 1, 9 hours 8 AM 57° 57° Partly Cloudy W   3 86% 53°
SAN YSIDRO, CA 92143 weather forecast Day 1, 12 hours 11 AM 62° 61° Partly Cloudy 23%
RAIN
.1–.25 in
0% Thunder
( 12% severe)
WSW   8 62% 49°
SAN YSIDRO, CA 92143 weather forecast Day 1, 15 hours 2 PM 63° 62° Partly Cloudy W   13 62% 50°
SAN YSIDRO, CA 92143 weather forecast Day 1, 18 hours 5 PM 62° 60° Partly Cloudy 5%

0% Thunder
( 4% severe)
W   13 62% 49°
SAN YSIDRO, CA 92143 weather forecast Day 1, 21 hours 8 PM 58° 56° Partly Cloudy WNW   9 72% 49°
Tuesday
14 APR 2026
SAN YSIDRO, CA 92143 weather forecast Day 2, 0 hours 11 PM 57° 56° Partly Cloudy 3%

0% Thunder
( 1% severe)
NW   6 77% 50°
Low 53° SAN YSIDRO, CA 92143 weather forecast Day 2, 3 hours 2 AM 55° 55° Partly Cloudy SSE   3 83% 50°
High 69° SAN YSIDRO, CA 92143 weather forecast Day 2, 6 hours 5 AM 54° 54° Mostly Cloudy 2%

0% Thunder
( 1% severe)
SSE   2 83% 49°

Decreasing Clouds



SAN YSIDRO, CA 92143 weather forecast Day 2, 9 hours 8 AM 57° 57° Partly Cloudy SSE   3 80% 51°
SAN YSIDRO, CA 92143 weather forecast Day 2, 12 hours 11 AM 64° 64° Partly Cloudy 1%

0% Thunder
( 0% severe)
W   6 60% 50°
SAN YSIDRO, CA 92143 weather forecast Day 2, 15 hours 2 PM 67° 67° Clear W   12 59% 52°
SAN YSIDRO, CA 92143 weather forecast Day 2, 18 hours 5 PM 65° 65° Clear 0%

0% Thunder
( 0% severe)
W   12 63% 52°
SAN YSIDRO, CA 92143 weather forecast Day 2, 21 hours 8 PM 60° 59° Clear WNW   7 78% 53°

SAN DIEGO/BROWN, CA extended weather forecast

Wednesday
15 APR 2026
Thursday
16 APR 2026
Friday
17 APR 2026
Saturday
18 APR 2026
Sunday
19 APR 2026
Low 52° Low 53° Low 51° Low 48° Low 52°
High 70° High 69° High 72° High 76° High 69°
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
3% Rain
Overcast
19% Rain
Mostly Cloudy
10% Rain
Partly Cloudy
4% Rain
Partly Cloudy
6% Rain
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