Weather WorldThe Tarn, CA 7-Day Night Weather Forecast
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The Tarn, CA Weather Forecast
The Tarn, CA Weather Forecast Date: 1158 AM PDT Fri Sep 18 2026
The area/counties/county of: San Bernardino County Mountains, including the cities of: Crestline, Lake Arrowhead, Big Bear City, Big Bear Lake, Running Springs, and Wrightwood.or toggle through each period.
Tonight... Clear. Lows 41 to 51 above 6000 feet to 49 to 59 below 6000 feet. Areas of winds southwest to 10 mph this evening becoming light.
Saturday... Sunny. Highs 65 to 75 above 6000 feet to 75 to 84 below 6000 feet. Areas of winds northeast 10 mph.
Saturday Night... Mostly clear. Lows 45 to 55 above 6000 feet to 53 to 63 below 6000 feet. Areas of winds south to 10 mph in the evening becoming light.
Sunday... Partly cloudy. Highs 66 to 76 above 6000 feet to 74 to 83 below 6000 feet. Areas of winds southeast to 10 mph becoming south with gusts to 30 mph in the afternoon.
Sunday Night... Partly cloudy. Lows 44 to 54 above 6000 feet to 52 to 62 below 6000 feet. Areas of winds southwest 10 to 15 mph with gusts to 25 mph in the evening becoming light.
Monday... Mostly sunny. Highs 62 to 72 above 6000 feet to 68 to 78 below 6000 feet.
Monday Night... Mostly clear. Lows 46 to 56.
Tuesday... Mostly sunny. Highs 63 to 73 above 6000 feet to 72 to 81 below 6000 feet.
Tuesday Night... Mostly clear. Lows 47 to 57.
Wednesday... Mostly sunny. Highs 67 to 77 above 6000 feet to 77 to 86 below 6000 feet.
Wednesday Night... Mostly clear. Lows 50 to 60.
Thursday... Mostly sunny. Highs 68 to 78 above 6000 feet to 78 to 87 below 6000 feet.
Thursday Night... Mostly clear. Lows 51 to 61.
POP = Probability of Precipitation
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