Big Bear CA has 4 definite seasons due to the altitude with December, January and February being the coldest months with average highs of about 48°F and average lows of about 21°F. The warmest months are June, July and August when highs average 76-81°F with lows averaging in a range of 41-47°F.
The current weather conditions for Big Bear CA:
You may also be interested in the Big Bear CA Ski Report