Weather & Tides-August 20, 2025

NATIONAL WEATHER SERVICE REPORT 

Wednesday, August 20th, 2025

SYNOPSIS: Hot and very dry weather will build in through the week with a shallower and stronger marine layer along the coast. There is very slight potential for thunderstorms over the interior this weekend into early next week.

TODAY: 

Inland: Sunny, with a high near 95. Light north wind increasing to 5 to 9 mph in the afternoon. 

Along the Coast: Partly sunny, with a high near 66. North northwest wind 3 to 7 mph.

TONIGHT:  

Inland: Clear, with a low around 55. North wind 5 to 9 mph becoming calm in the evening.

Along the Coast: Partly cloudy, with a low around 53. North northwest wind 5 to 7 mph becoming calm after midnight. 

Extended Forecast: The past few days have been cooler than normal inland, with some light coastal clouds that cleared easily. That’s about to change as a strong high-pressure system builds in, bringing a significant heat-up by late week. Temperatures inland are expected to soar into the 100–110 °F range Friday and Saturday, which could create moderate to locally major heat risks, especially in valleys. Along the coast, more stubborn clouds are likely to linger, though lighter winds may allow some warmer air to sneak in briefly this weekend.

Predicted Temperatures

Location	High Today	Low Tonight	HighTomorrow
Inland	95	55	98
Along The Coast	66	53	66

The coastal waters forecast from Point Saint George to Cape Mendocino and out to 10 nautical miles.

SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH FRIDAY EVENING

Today	Wind	NW 15 to 20 kt.
	Waves	N 5 ft at 5 seconds and NW 3 ft at 10 seconds.
Tonight	Wind	N 20 to 25 kt with gusts up to 35 kt.
	Waves	N 8 ft at 7 seconds and NW 3 ft at 9 seconds.

The coastal waters forecast from Cape Mendocino to Point Arena and out to 10 nautical miles. 

SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE FRIDAY NIGHT

Today	Wind	NW 20 to 25 kt.
	Waves	N 6 ft at 6 seconds and NW 3 ft at 10 seconds.
Tonight	Wind	N 20 to 25 kt.
	Waves	N 7 ft at 6 seconds and NW 3 ft at 9 seconds.ds.

Lastly, here are the solar and lunar phases and tidal information : Today, Wednesday, August 20th, the sun rose in Shelter Cove at 6:33am and the sunset will be at 8:04pm, for a total of 13 hours and 31 minutes of sunlight. The first high tide will be at 10:59 am,  at 4.7ft, and the next high tide at 9:36 pm, at 6.8ft .  The next low tide will be at 3:34 pm,  at 3.1ft. The waning crescent moon rose in the northeast at 3:26 am and will set in the northwest at 7:02 pm. According to the solunar theory, today is a good day for fishing, the fish activity forecast is high.