SAN YSIDRO, CA 92143 Weather Forecast & Current Conditions

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SAN DIEGO/BROWN, CA
Current Weather

4:53 AM PST JAN 28, 2026
Clear
Haze
46°F
Feels Like: 46°F
Dewpoint: 28°F
Rel. Hum.: 49%
Visibility: 3 miles
Wind: Calm
Pressure: 30.21 inches
Last 72 hours

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SAN YSIDRO, CA 92143
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TODAY
Partly cloudy. Highs around 70 near the coast to 72 inland. Light winds becoming northwest 10 mph this afternoon.
TONIGHT
Mostly cloudy in the evening...becoming partly cloudy. Lows 46 to 51. Light winds.
THURSDAY
Mostly sunny. Highs 71 to 75 near the coast to 78 inland. Light winds becoming northwest 10 mph in the afternoon.
THURSDAY NIGHT
Mostly clear. Lows 49 to 53. Light winds becoming east 10 mph overnight.
FRIDAY
Mostly sunny. Highs 74 to 79 near the coast to 80 to 83 inland. Areas of winds northeast 10 mph becoming west in the afternoon.
FRIDAY NIGHT
Mostly clear. Lows 53 to 56.
SATURDAY
Mostly sunny. Highs 73 to 76 near the coast to 79 inland.
SATURDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 51 to 54.
SUNDAY
Partly cloudy. Highs 69 to 72 near the coast to 74 inland.
SUNDAY NIGHT
Partly cloudy. Lows 49 to 53.
MONDAY
Mostly cloudy in the morning...becoming partly cloudy. Highs 65 to 68 near the coast to 70 inland.
MONDAY NIGHT
Partly cloudy. Lows 48 to 52.
TUESDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 67 to 71 near the coast to 71 to 74 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  5:00 PM MST  1/27/2026
Wednesday
28 JAN 2026
SAN YSIDRO, CA 92143 weather forecast Day 1, 0 hours 10 PM 54° 54° Mostly Cloudy 1%

0% Thunder
( 0% severe)
SE   3 50% 36°
Low 47° SAN YSIDRO, CA 92143 weather forecast Day 1, 3 hours 1 AM 51° 50° Partly Cloudy NE   3 52% 34°
High 71° SAN YSIDRO, CA 92143 weather forecast Day 1, 6 hours 4 AM 49° 48° Partly Cloudy 1%

0% Thunder
( 0% severe)
ESE   3 50% 31°

Mostly Cloudy



SAN YSIDRO, CA 92143 weather forecast Day 1, 9 hours 7 AM 48° 47° Mostly Cloudy ENE   3 45% 28°
SAN YSIDRO, CA 92143 weather forecast Day 1, 12 hours 10 AM 64° 65° Partly Cloudy 0%

0% Thunder
( 0% severe)
NW   3 28% 30°
SAN YSIDRO, CA 92143 weather forecast Day 1, 15 hours 1 PM 70° 70° Mostly Cloudy WNW   7 28% 35°
SAN YSIDRO, CA 92143 weather forecast Day 1, 18 hours 4 PM 67° 67° Mostly Cloudy 0%

0% Thunder
( 0% severe)
WNW   7 40% 42°
SAN YSIDRO, CA 92143 weather forecast Day 1, 21 hours 7 PM 59° 60° Partly Cloudy NNW   3 57% 44°
Thursday
29 JAN 2026
SAN YSIDRO, CA 92143 weather forecast Day 2, 0 hours 10 PM 56° 56° Mostly Cloudy 0%

0% Thunder
( 0% severe)
E   3 51% 38°
Low 49° SAN YSIDRO, CA 92143 weather forecast Day 2, 3 hours 1 AM 53° 53° Partly Cloudy NE   3 50% 35°
High 78° SAN YSIDRO, CA 92143 weather forecast Day 2, 6 hours 4 AM 52° 52° Partly Cloudy 0%

0% Thunder
( 0% severe)
ESE   3 43% 30°

Partly Cloudy



SAN YSIDRO, CA 92143 weather forecast Day 2, 9 hours 7 AM 52° 51° Partly Cloudy E   5 37% 27°
SAN YSIDRO, CA 92143 weather forecast Day 2, 12 hours 10 AM 70° 70° Clear 0%

0% Thunder
( 0% severe)
NE   5 22% 29°
SAN YSIDRO, CA 92143 weather forecast Day 2, 15 hours 1 PM 76° 76° Clear WNW   7 19% 31°
SAN YSIDRO, CA 92143 weather forecast Day 2, 18 hours 4 PM 73° 73° Clear 0%

0% Thunder
( 0% severe)
WNW   6 26% 36°
SAN YSIDRO, CA 92143 weather forecast Day 2, 21 hours 7 PM 62° 62° Clear NE   5 39% 37°

SAN DIEGO/BROWN, CA extended weather forecast

Friday
30 JAN 2026
Saturday
31 JAN 2026
Sunday
1 FEB 2026
Monday
2 FEB 2026
Tuesday
3 FEB 2026
Low 48° Low 49° Low 48° Low 47° Low 45°
High 82° High 80° High 73° High 69° 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
Clear
1% Rain
Clear
1% Rain
Partly Cloudy
2% Rain
Partly Cloudy
4% Rain
Partly Cloudy
6% Rain
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