SAN YSIDRO, CA 92143 Weather Forecast & Current Conditions

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SAN DIEGO/BROWN, CA
Current Weather

5:53 PM PDT MAR 14, 2026
Clear
66°F
Feels Like: 66°F
Dewpoint: 55°F
Rel. Hum.: 68%
Visibility: 10 miles
Wind: NW at 6 mph
Pressure: 29.91 inches
Last 72 hours

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SAN YSIDRO, CA 92143
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Patchy fog this evening. Partly cloudy. Lows 49 to 54. Light winds.
SUNDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 72 to 77 near the coast to 81 to 84 inland. Light winds becoming west 10 mph in the afternoon.
SUNDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 52 to 56. Light winds.
MONDAY
Partly cloudy in the morning...becoming mostly sunny. Warmer. Highs 79 to 84 near the coast to 89 to 92 inland. Light winds becoming northwest 10 mph in the afternoon.
MONDAY NIGHT
Mostly clear. Lows 55 to 60. Areas of winds northwest to 10 mph in the evening becoming light.
TUESDAY
Mostly sunny. Highs 80 to 85 near the coast to 90 to 93 inland.
TUESDAY NIGHT
Mostly clear. Lows 56 to 61.
WEDNESDAY
Mostly sunny. Highs 80 to 85 near the coast to 89 to 93 inland.
WEDNESDAY NIGHT
Mostly clear. Lows 55 to 60.
THURSDAY
Mostly sunny. Highs 81 to 86 near the coast to 90 to 94 inland.
THURSDAY NIGHT
Mostly clear. Lows 56 to 61.
FRIDAY
Mostly sunny. Highs 81 to 86 near the coast to 91 to 95 inland.
FRIDAY NIGHT
Mostly clear. Lows 56 to 61.

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  3/14/2026
Saturday
14 MAR 2026
SAN YSIDRO, CA 92143 weather forecast Day 1, 12 hours 10 AM 74° 74° Partly Cloudy 0%

0% Thunder
( 0% severe)
SW   6 35% 45°
High 77° SAN YSIDRO, CA 92143 weather forecast Day 1, 15 hours 1 PM 76° 78° Partly Cloudy WSW   10 42% 51°
Partly Cloudy



SAN YSIDRO, CA 92143 weather forecast Day 1, 18 hours 4 PM 72° 72° Partly Cloudy 1%

0% Thunder
( 0% severe)
WSW   9 51% 53°
SAN YSIDRO, CA 92143 weather forecast Day 1, 21 hours 7 PM 63° 64° Partly Cloudy W   5 75% 55°
Sunday
15 MAR 2026
SAN YSIDRO, CA 92143 weather forecast Day 2, 0 hours 10 PM 59° 60° Partly Cloudy 1%

0% Thunder
( 0% severe)
SE   2 83% 54°
Low 54° SAN YSIDRO, CA 92143 weather forecast Day 2, 3 hours 1 AM 56° 56° Partly Cloudy ENE   2 86% 52°
High 77° SAN YSIDRO, CA 92143 weather forecast Day 2, 6 hours 4 AM 54° 54° Partly Cloudy 0%

0% Thunder
( 0% severe)
E   2 83% 49°

Partly Cloudy



SAN YSIDRO, CA 92143 weather forecast Day 2, 9 hours 7 AM 55° 55° Partly Cloudy NNE   2 77% 48°
SAN YSIDRO, CA 92143 weather forecast Day 2, 12 hours 10 AM 71° 71° Clear 0%

0% Thunder
( 0% severe)
WNW   5 44% 48°
SAN YSIDRO, CA 92143 weather forecast Day 2, 15 hours 1 PM 75° 75° Clear W   8 45% 52°
SAN YSIDRO, CA 92143 weather forecast Day 2, 18 hours 4 PM 72° 72° Partly Cloudy 0%

0% Thunder
( 0% severe)
W   7 53% 54°
SAN YSIDRO, CA 92143 weather forecast Day 2, 21 hours 7 PM 64° 65° Partly Cloudy W   3 70% 54°
Monday
16 MAR 2026
SAN YSIDRO, CA 92143 weather forecast Day 3, 0 hours 10 PM 60° 61° Partly Cloudy 0%

0% Thunder
( 0% severe)
ENE   2 78% 53°
Low 57° SAN YSIDRO, CA 92143 weather forecast Day 3, 3 hours 1 AM 58° 59° Partly Cloudy ENE   2 75% 50°
High 85° SAN YSIDRO, CA 92143 weather forecast Day 3, 6 hours 4 AM 57° 57° Partly Cloudy 0%

0% Thunder
( 0% severe)
E   3 67% 46°

Clear



SAN YSIDRO, CA 92143 weather forecast Day 3, 9 hours 7 AM 59° 60° Clear ENE   3 57% 44°
SAN YSIDRO, CA 92143 weather forecast Day 3, 15 hours 10 AM 79° 78° Clear 0%

0% Thunder
( 0% severe)
N   5 28% 43°
SAN YSIDRO, CA 92143 weather forecast Day 3, 18 hours 1 PM 83° 81° Clear NW   9 28% 47°
SAN YSIDRO, CA 92143 weather forecast Day 3, 21 hours 4 PM 79° 79° Clear     WNW   8 36% 50°

SAN DIEGO/BROWN, CA extended weather forecast

Tuesday
17 MAR 2026
Wednesday
18 MAR 2026
Thursday
19 MAR 2026
Friday
20 MAR 2026
Saturday
21 MAR 2026
Low 55° Low 56° Low 56° Low 54° Low 56°
High 88° High 85° High 86° High 86° 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
Clear
1% Rain
Clear
2% Rain
Clear
2% Rain
Clear
2% Rain
Partly Cloudy
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