Crescent City Weather Forecasts. Be prepared with the most accurate 10-day forecast for Crescent City, CA with highs, lows, chance of precipitation from The Weather Channel and Weather.com Weather Underground provides local & long-range weather forecasts, weatherreports, maps & tropical weather conditions for the Crescent City area. Today’s and tonight’s Crescent City, CA weather forecast, weather conditions and Doppler radar from The Weather Channel and Weather.com Check the current conditions for Crescent City, CA for the day ahead, with radar, hourly, and up to the minute forecasts. Get the forecast for today, tonight & tomorrow's weather for Crescent City, CA. Hi/Low, RealFeel®, precip, radar, & everything you need to be ready for the day, commute, and weekend! Be prepared for the day.