Monday, December 15th, 2025
SYNOPSIS: Moderate to locally heavy rain will arrive for Del Norte and Humboldt Counties today into tonight. Rain is forecast to spread southward by Tuesday for Mendocino and Lake. More rain is forecast for the remainder of this week. Strong gusty winds will also be possible with each storm, especially late week and next weekend.
TODAY:
Inland: Rain, mainly after 4pm. High near 62. Calm wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Along the Coast: Rain, mainly after 4pm. High near 57. South southeast wind around 6 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
TONIGHT:
Inland:Rain. Patchy fog before 1am. Low around 51. Calm wind. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Along the Coast: Rain. Low around 56. Southeast wind around 6 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Extended Forecast: A low pressure system in the Gulf of Alaska is bringing multiple rounds of rain and wind to Northwest California through Wednesday, with the heaviest impacts in Del Norte and Humboldt counties. A second, stronger storm will arrive Tuesday into Wednesday, spreading rain farther south with 0.5 to 1.5 inches expected at lower elevations and 2 to 4 inches in the mountains, along with wind gusts of 20-35 mph (possibly 45+ mph on ridges). Looking ahead, it is likely that wet weather will continue through the end of December, with forecasts suggesting a potential moderate to strong atmospheric river late next week that could bring heavy rainfall, wind gusts over 50 mph, and possible minor flooding.
Predicted Temperatures
| Location | High Today | Low Tonight | HighTomorrow |
| Inland | 62 | 51 | 64 |
| Along The Coast | 57 | 56 | 59 |
The coastal waters forecast from Point Saint George to Cape Mendocino and out to 10 nautical miles.
SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY MORNING
| Today | Wind | S 10 to 15 kt. |
| Waves | S 3 ft at 4 seconds and W 3 ft at 9 seconds. Showers this morning. A chance of thunderstorms. Rain this afternoon. | |
| Tonight | Wind | S 5 to 10 kt. |
| Waves | S 4 ft at 5 seconds and W 8 ft at 13 seconds. Rain likely. |
The coastal waters forecast from Cape Mendocino to Point Arena and out to 10 nautical miles.
| Today | Wind | SE 10 to 15 kt, easing to 5 to 10 kt this afternoon. |
| Waves | SE 3 ft at 4 seconds and W 3 ft at 9 seconds. A chance of rain. | |
| Tonight | Wind | SE 5 to 10 kt. |
| Waves | SE 2 ft at 4 seconds and W 6 ft at 13 seconds. Patchy dense fog. Rain. |
Lastly, here are the solar and lunar phases and tidal information :
Today Monday, 15th of December, the sun rose in Shelter Cove at 7:31am and sunset will be at 4:52 pm, for a total of 9 hours and 21 minutes of sunlight.
The next LOW tide will be at 2:50pm, at 0.7ft, and the following HIGH tide will be at 9:18pm at 4.3ft.
Today the waning crescent moon rose in the southeast at 3:38 am and will set in the southwest at 1:52 pm.
According to the solunar theory, today is an average day for fishing, the fish activity forecast is average.