SAN YSIDRO, CA 92143 Weather Forecast & Current Conditions

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SAN DIEGO/BROWN, CA
Current Weather

7:53 AM PDT MAY 25, 2026
Overcast
63°F
Feels Like: 64°F
Dewpoint: 54°F
Rel. Hum.: 72%
Visibility: 10 miles
Wind: N at 3 mph
Pressure: 29.98 inches
Last 72 hours

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SAN YSIDRO, CA 92143
Weather Forecast

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TODAY
Mostly cloudy this morning...becoming partly cloudy. Highs 66 to 69 near the coast to 70 inland. Areas of winds northwest 10 to 15 mph. Gusts to 25 mph this afternoon.
TONIGHT
Mostly cloudy. A slight chance of rain overnight. Lows 53 to 58. Areas of winds west 10 to 15 mph in the evening becoming light. Chance of measurable precipitation 20 percent.
TUESDAY
Cloudy with a slight chance of rain in the morning, then partly cloudy in the afternoon. Highs 65 to 68. Areas of winds west 10 mph. Chance of measurable precipitation 20 percent.
TUESDAY NIGHT
Mostly cloudy. A chance of rain overnight. Lows 53 to 57. Areas of winds west 10 mph. Chance of measurable precipitation 30 percent.
WEDNESDAY
Cloudy with a chance of rain in the morning, then mostly cloudy in the afternoon. Highs 66 to 69. Areas of winds south 10 to 15 mph with gusts to 25 mph. Chance of measurable precipitation 30 percent.
WEDNESDAY NIGHT
Mostly cloudy. A slight chance of rain overnight. Lows 52 to 57.
THURSDAY
Cloudy with a slight chance of rain in the morning, then partly cloudy in the afternoon. Highs 66 to 69.
THURSDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 51 to 57.
FRIDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 66 to 70.
FRIDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 52 to 57.
SATURDAY
Partly cloudy. Highs 67 to 71 near the coast to 72 inland.
SATURDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 54 to 58.
SUNDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 69 to 73 near the coast to 74 to 77 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  5/24/2026
Monday
25 MAY 2026
SAN YSIDRO, CA 92143 weather forecast Day 1, 0 hours 11 PM 61° 60° Mostly Cloudy 0%

0% Thunder
( 0% severe)
WNW   7 81% 55°
Low 59° SAN YSIDRO, CA 92143 weather forecast Day 1, 3 hours 2 AM 60° 60° Mostly Cloudy NW   5 84% 55°
High 70° SAN YSIDRO, CA 92143 weather forecast Day 1, 6 hours 5 AM 60° 61° Mostly Cloudy 2%

0% Thunder
( 0% severe)
NW   3 84% 55°

Mostly Cloudy



SAN YSIDRO, CA 92143 weather forecast Day 1, 9 hours 8 AM 60° 60° Mostly Cloudy NW   5 84% 55°
SAN YSIDRO, CA 92143 weather forecast Day 1, 12 hours 11 AM 66° 66° Mostly Cloudy 0%

0% Thunder
( 0% severe)
WNW   9 68% 55°
SAN YSIDRO, CA 92143 weather forecast Day 1, 15 hours 2 PM 68° 68° Partly Cloudy W   15 65% 56°
SAN YSIDRO, CA 92143 weather forecast Day 1, 18 hours 5 PM 66° 66° Partly Cloudy 0%

0% Thunder
( 0% severe)
W   13 68% 55°
SAN YSIDRO, CA 92143 weather forecast Day 1, 21 hours 8 PM 61° 59° Mostly Cloudy WNW   13 81% 55°
Tuesday
26 MAY 2026
SAN YSIDRO, CA 92143 weather forecast Day 2, 0 hours 11 PM 60° 59° Mostly Cloudy 5%

0% Thunder
( 1% severe)
WNW   7 84% 55°
Low 57° SAN YSIDRO, CA 92143 weather forecast Day 2, 3 hours 2 AM 59° 60° Mostly Cloudy WNW   3 83% 54°
High 67° SAN YSIDRO, CA 92143 weather forecast Day 2, 6 hours 5 AM 59° 60° Mostly Cloudy 9%

0% Thunder
( 1% severe)
W   3 83% 54°

Mostly Cloudy



SAN YSIDRO, CA 92143 weather forecast Day 2, 9 hours 8 AM 59° 60° Overcast WNW   3 87% 55°
SAN YSIDRO, CA 92143 weather forecast Day 2, 12 hours 11 AM 64° 64° Mostly Cloudy 1%

0% Thunder
( 0% severe)
W   9 70% 54°
SAN YSIDRO, CA 92143 weather forecast Day 2, 15 hours 2 PM 66° 66° Partly Cloudy W   14 68% 55°
SAN YSIDRO, CA 92143 weather forecast Day 2, 18 hours 5 PM 64° 63° Partly Cloudy 0%

0% Thunder
( 2% severe)
W   13 70% 54°
SAN YSIDRO, CA 92143 weather forecast Day 2, 21 hours 8 PM 60° 58° Mostly Cloudy W   13 78% 53°

SAN DIEGO/BROWN, CA extended weather forecast

Wednesday
27 MAY 2026
Thursday
28 MAY 2026
Friday
29 MAY 2026
Saturday
30 MAY 2026
Sunday
31 MAY 2026
Low 56° Low 55° Low 56° Low 58° Low 59°
High 69° High 68° High 72° High 74° High 74°
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
Overcast
37% Rain
Mostly Cloudy
42% Rain
Partly Cloudy
13% Rain
Partly Cloudy
9% Rain
Overcast
2% Rain
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