NATIONAL WEATHER SERVICE REPORT
Tuesday, October 21st, 2025
SYNOPSIS: Drier and warmer weather today, before a cool-down on Wednesday. A series of large swell will bring dangerous breaking waves along the west and northwest facing beaches this week, as well as sneaker waves risk. Confidences remain high for a moderate Atmospheric River (AR) impacting Northern California Friday into the weekend, bringing periods of heavy rainfall, high- elevation heavy snow, and strong south winds.
TODAY:
Inland: Sunny, with a high near 85. Calm wind becoming south southwest 5 to 7 mph in the afternoon.
Along the Coast: Sunny, with a high near 69. Light and variable wind.
TONIGHT:
Inland: Partly cloudy, with a low around 45. Light south southwest wind.
Along the Coast: Partly cloudy, with a low around 48. Light and variable wind.
Extended Forecast: High pressure over Northern California is bringing clear skies, dry air, and chilly nights with patchy frost possible in inland valleys. Today will be warmer and dry, with valley highs in the upper 70s to low 80s and coastal highs in the low 70s. By Wednesday, a shift in weather patterns will draw in cooler marine air and some cloud cover, keeping temperatures steady through Thursday. Starting Friday, an atmospheric river is expected to bring significant rain, mountain snow, and gusty winds to Northern California, lasting through the weekend. The heaviest impacts are likely north of Cape Mendocino, where over three inches of rain and localized flooding are possible.
Predicted Temperatures
| Location | High Today | Low Tonight | HighTomorrow |
| Inland | 85 | 45 | 74 |
| Along The Coast | 69 | 48 | 63 |
The coastal waters forecast from Point Saint George to Cape Mendocino and out to 10 nautical miles.
SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
| Today | Wind | N 5 kt. |
| Waves | NW 4 ft at 7 seconds and NW 7 ft at 12 seconds. | |
| Tonight | Wind | S 5 kt |
| Waves | NW 11 ft at 18 seconds. |
The coastal waters forecast from Cape Mendocino to Point Arena and out to 10 nautical miles.
| Today | Wind | NE 5 kt, backing to W this afternoon. |
| Waves | N 2 ft at 6 seconds and NW 7 ft at 12 seconds. | |
| Tonight | Wind | S 5 to 10 kt. |
| Waves | NW 6 ft at 13 seconds and NW 10 ft at 19 seconds. |
Lastly, here are the solar and lunar phases and tidal information : Today, Tuesday, October 21st, the sun rose in Shelter Cove at 7:34am and the sunset will be at 6:26pm, for a total of 10 hours and 52 minutes of sunlight. The only high tide of the day will be at 11:30 am, at 6.1ft. The next low tide will be at 6:16 pm, at 0.0ft. The New Moon rose in the southeast at 7:51 am and will set in the southwest at 6:19 pm. According to the solunar theory, today is an excellent day for fishing, the fish activity forecast is very high.