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Winter is right around the corner, and it could be snowy. Read AccuWeather's 2025-26 U.S. winter forecast. Chevron right

South San Ysidro, NM

57°F
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South San Ysidro

New Mexico

57°
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South San Ysidro, NM Weather
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Winter Center
Today Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities
Wednesday, December 31

Day

12/31
48°Hi
RealFeel® 51°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
RealFeel Shade™ 47°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
Partly sunny

Max UV Index3.0 (Moderate)

WindSSE 5 mph

Wind Gusts10 mph

Probability of Precipitation1%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover36%

Night

12/31
19°Lo
RealFeel® 21°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
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Partly cloudy

WindSW 4 mph

Wind Gusts9 mph

Probability of Precipitation2%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover32%

Sun & Moon

9 hrs 48 mins
Rise 8:12 AM
Set 6:00 PM
Waxing Gibbous
Rise 3:08 PM
Set 6:35 AM

Temperature History

12/31
High
Low
Forecast
48°
19°
Average
41°
20°
Last Year
46°
24°

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