Zone Forecast Product
Issued by NWS Eureka, CA
Issued by NWS Eureka, CA
303
FPUS56 KEKA 210837
ZFPEKA
Zone Forecast Product for California
National Weather Service Eureka CA
136 AM PDT Fri Aug 21 2026
This is an average forecast over a large and geographically diverse
area. For a specific forecast for your location...please refer to
the point and click forecast on our webpage at:
www.weather.gov/eureka.
Spot temperatures and probabilities of measurable precipitation
are for today, tonight, and Saturday.
CAZ101-220200-
Coastal Del Norte-
Including the cities of Ft Dick, Crescent City, and Smith River
136 AM PDT Fri Aug 21 2026
.TODAY...Mostly cloudy. Areas of fog in the morning. Highs 59 to
69. Light winds becoming southwest around 5 mph in the afternoon.
.TONIGHT...Cloudy. Areas of fog overnight. Lows 46 to 56.
Southwest wind around 5 mph in the evening becoming light.
.SATURDAY...Cloudy in the morning then becoming partly cloudy.
Patchy fog in the morning. Highs 59 to 69. Light winds becoming
west around 5 mph in the afternoon.
.SATURDAY NIGHT...Mostly cloudy. Lows 46 to 56. North wind around
5 mph.
.SUNDAY...Partly cloudy. Highs 64 to 77. North wind around
10 mph.
.SUNDAY NIGHT THROUGH MONDAY NIGHT...Mostly cloudy. Patchy fog.
Lows 47 to 57. Highs 62 to 77.
.TUESDAY THROUGH WEDNESDAY...Mostly cloudy. Areas of fog. Highs
59 to 69. Lows 47 to 57.
.WEDNESDAY NIGHT AND THURSDAY...Mostly cloudy. Patchy fog. Lows
47 to 57. Highs 59 to 72.
&&
TEMPERATURE / PRECIPITATION
Crescent City 61 52 62 / 0 0 0
Klamath 63 51 64 / 0 0 0
$$
CAZ102-220200-
Interior Del Norte-
Including the city of Gasquet
136 AM PDT Fri Aug 21 2026
.TODAY...Cloudy until early afternoon then becoming partly
cloudy. Patchy valley fog in the morning. Highs 67 to 82.
.TONIGHT...Partly cloudy. Patchy valley fog overnight. Lows 45 to
55.
.SATURDAY...Mostly sunny. Patchy valley fog in the morning. Highs
63 to 78.
.SATURDAY NIGHT...Mostly clear. Lows 45 to 55.
.SUNDAY...Sunny. Highs 73 to 88.
.SUNDAY NIGHT AND MONDAY...Partly cloudy. Lows 53 to 63. Highs
74 to 89.
.MONDAY NIGHT...Mostly clear. Lows 51 to 61.
.TUESDAY...Partly cloudy. Highs 70 to 85.
.TUESDAY NIGHT...Partly cloudy. Patchy valley fog. Lows 49 to 59.
.WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy. Highs 68 to 83.
Lows 49 to 59.
.THURSDAY...Sunny. Highs 69 to 84.
&&
TEMPERATURE / PRECIPITATION
Gasquet 75 48 74 / 0 0 0
$$
CAZ103-220200-
Northern Coastal Humboldt-
Including the cities of Eureka, Samoa, Arcata, Arcata Arpt,
Fieldbrook, Fernbridge, and Fortuna
136 AM PDT Fri Aug 21 2026
.TODAY...Mostly cloudy. Areas of fog in the morning. Highs 61 to
71. Light winds becoming west around 10 mph in the afternoon.
.TONIGHT...Mostly cloudy. Patchy fog overnight. Lows 47 to 57.
Northwest wind around 10 mph in the evening becoming light.
.SATURDAY...Mostly cloudy in the morning then clearing. Patchy
fog in the morning. Highs 62 to 72. Light winds becoming
northwest around 10 mph in the afternoon.
.SATURDAY NIGHT...Mostly cloudy. Lows 48 to 58. North wind around
10 mph.
.SUNDAY...Mostly cloudy. Highs 62 to 75. North wind around
10 mph.
.SUNDAY NIGHT...Partly cloudy in the evening then becoming mostly
cloudy. Patchy fog. Lows 49 to 59.
.MONDAY...Mostly cloudy. Highs 63 to 78.
.MONDAY NIGHT THROUGH THURSDAY...Mostly cloudy. Patchy fog. Lows
48 to 58. Highs 63 to 78.
&&
TEMPERATURE / PRECIPITATION
McKinleyville 61 51 62 / 0 0 0
Arcata 64 53 65 / 0 0 0
Eureka 63 53 63 / 0 0 0
Fortuna 66 53 66 / 0 0 0
$$
CAZ104-220200-
Southwestern Humboldt-
Including the cities of Honeydew, Petrolia, Briceland,
Ettersburg, Shelter Cove, and Whitethorn
136 AM PDT Fri Aug 21 2026
.TODAY...Mostly cloudy until early afternoon then clearing.
Patchy fog in the morning. Highs 67 to 82. West wind around
10 mph.
.TONIGHT...Partly cloudy. Patchy fog overnight. Lows 47 to 57.
Northwest wind around 10 mph.
.SATURDAY...Sunny. Patchy fog in the morning. Highs 71 to 86.
North wind around 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows 50 to 60. North wind around
15 mph.
.SUNDAY...Sunny. Highs 76 to 91. North wind around 15 mph.
.SUNDAY NIGHT THROUGH THURSDAY...Partly cloudy. Lows 51 to 61.
Highs 76 to 91.
&&
TEMPERATURE / PRECIPITATION
Honeydew 76 50 78 / 0 0 0
$$
CAZ105-220200-
Northeastern Interior Humboldt-
Including the cities of Hoopa, Orleans, Weitchpec,
and Willow Creek
136 AM PDT Fri Aug 21 2026
.TODAY...Cloudy until early afternoon then becoming partly
cloudy. Patchy valley fog in the morning. Highs 77 to 92.
.TONIGHT...Partly cloudy. Patchy smoke in the evening. Patchy
valley fog overnight. Lows 47 to 57.
.SATURDAY...Sunny. Patchy valley fog in the morning. Highs 75 to
90.
.SATURDAY NIGHT...Mostly clear. Lows 47 to 57.
.SUNDAY...Sunny. Highs 84 to 99.
.SUNDAY NIGHT THROUGH TUESDAY...Partly cloudy. Lows 52 to 62.
Highs 85 to 100.
.TUESDAY NIGHT...Partly cloudy. Patchy valley fog. Lows 49 to 59.
.WEDNESDAY THROUGH THURSDAY...Partly cloudy. Highs 80 to 95. Lows
49 to 59.
&&
TEMPERATURE / PRECIPITATION
Orleans 90 53 87 / 10 10 0
Hoopa 88 53 85 / 10 10 0
Willow Creek 92 53 89 / 10 10 0
$$
CAZ106-220200-
Southeastern Interior Humboldt-
Including the cities of Bull Creek, Pepperwood, Shively,
Dinsmore, Bridgeville, Alderpoint, and Benbow
136 AM PDT Fri Aug 21 2026
.TODAY...Mostly cloudy until early afternoon then clearing.
Patchy valley fog in the morning. Highs 72 to 87.
.TONIGHT...Partly cloudy. Patchy valley fog overnight. Lows 45 to
55.
.SATURDAY...Sunny. Patchy valley fog in the morning. Highs 73 to
88.
.SATURDAY NIGHT...Mostly clear. Lows 46 to 56.
.SUNDAY...Sunny. Highs 78 to 93.
.SUNDAY NIGHT THROUGH THURSDAY...Partly cloudy. Lows 50 to 60.
Highs 78 to 93.
&&
TEMPERATURE / PRECIPITATION
Garberville 83 50 85 / 0 0 0
$$
CAZ108-220200-
Southern Trinity-
Including the cities of Forest Glen, Hayfork, Hyampom, Peanut,
Ruth, and Zenia
136 AM PDT Fri Aug 21 2026
.TODAY...Mostly cloudy. Highs 78 to 93.
.TONIGHT...Mostly clear. Lows 46 to 56.
.SATURDAY...Sunny. Highs 75 to 90.
.SATURDAY NIGHT...Mostly clear. Lows 47 to 57.
.SUNDAY...Sunny. Highs 81 to 96.
.SUNDAY NIGHT...Partly cloudy. Lows 51 to 61.
.MONDAY AND MONDAY NIGHT...Mostly clear. Highs 82 to 97. Lows
51 to 61.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy. Highs 79 to 94. Lows
50 to 60.
.WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows 48 to 58.
Highs 79 to 94.
&&
TEMPERATURE / PRECIPITATION
Hayfork 92 46 90 / 10 10 0
Ruth 85 45 84 / 10 10 0
$$
CAZ109-220200-
Coastal Mendocino-
Including the cities of Fort Bragg and Rockport
136 AM PDT Fri Aug 21 2026
.TODAY...Cloudy until early afternoon then becoming partly
cloudy. Areas of fog in the morning. Highs 58 to 73. Northwest
wind 5 to 15 mph.
.TONIGHT...Partly cloudy in the evening then becoming mostly
cloudy. Areas of fog overnight. Lows 45 to 55. Northwest wind
around 10 mph.
.SATURDAY...Partly cloudy in the morning then clearing. Patchy
fog in the morning. Highs 65 to 80. Northwest wind around 10 mph.
.SATURDAY NIGHT...Partly cloudy. Lows 46 to 56. Northwest wind
around 10 mph.
.SUNDAY...Mostly sunny. Highs 71 to 86. Northwest wind around
5 mph.
.SUNDAY NIGHT AND MONDAY...Partly cloudy. Patchy fog. Lows 48 to
58. Highs 71 to 86.
.MONDAY NIGHT...Partly cloudy in the evening then becoming mostly
cloudy. Areas of fog. Lows 46 to 56.
.TUESDAY...Mostly cloudy in the morning then becoming partly
cloudy. Patchy fog. Highs 64 to 79.
.TUESDAY NIGHT...Partly cloudy in the evening then becoming
mostly cloudy. Areas of fog. Lows 46 to 56.
.WEDNESDAY THROUGH THURSDAY...Partly cloudy. Patchy fog. Highs
69 to 84. Lows 46 to 56.
&&
TEMPERATURE / PRECIPITATION
Fort Bragg 64 50 65 / 0 0 0
Point Arena 58 50 59 / 0 0 10
$$
CAZ110-220200-
Northwestern Interior Mendocino-
Including the cities of Potter Valley and Willits
136 AM PDT Fri Aug 21 2026
.TODAY...Cloudy until early afternoon then becoming partly
cloudy. Patchy valley fog in the morning. Highs 77 to 92.
.TONIGHT...Partly cloudy. Patchy valley fog overnight. Lows 46 to
56.
.SATURDAY...Sunny. Patchy valley fog in the morning. Highs 77 to
92.
.SATURDAY NIGHT...Mostly clear. Lows 48 to 58.
.SUNDAY...Sunny. Highs 83 to 98.
.SUNDAY NIGHT...Partly cloudy. Lows 52 to 62.
.MONDAY AND MONDAY NIGHT...Mostly clear. Highs 82 to 97. Lows
51 to 61.
.TUESDAY THROUGH WEDNESDAY NIGHT...Partly cloudy. Highs 82 to 97.
Lows 50 to 60.
.THURSDAY...Sunny. Highs 82 to 97.
&&
TEMPERATURE / PRECIPITATION
Leggett 75 50 79 / 0 0 0
Laytonville 81 50 82 / 0 0 0
Willits 77 48 78 / 0 0 0
$$
CAZ111-220200-
Northeastern Interior Mendocino-
Including the city of Covelo
136 AM PDT Fri Aug 21 2026
.TODAY...Mostly cloudy. Highs 81 to 96.
.TONIGHT...Mostly clear. Lows 48 to 58.
.SATURDAY...Sunny. Highs 81 to 96.
.SATURDAY NIGHT...Mostly clear. Lows 51 to 61.
.SUNDAY...Sunny. Highs 85 to 100.
.SUNDAY NIGHT...Partly cloudy. Lows 54 to 64.
.MONDAY AND MONDAY NIGHT...Mostly clear. Highs 84 to 99. Lows
54 to 64.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy. Highs 85 to 100. Lows
53 to 63.
.WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows 52 to 62.
Highs 85 to 100.
&&
TEMPERATURE / PRECIPITATION
Covelo 87 50 87 / 0 0 0
$$
CAZ112-220200-
Southwestern Interior Mendocino-
Including the cities of Boonville, Philo, Comptche, and Yorkville
136 AM PDT Fri Aug 21 2026
.TODAY...Cloudy until early afternoon then becoming mostly sunny.
Patchy valley fog in the morning. Highs 70 to 85.
.TONIGHT...Partly cloudy in the evening then becoming mostly
cloudy. Patchy valley fog overnight. Lows 46 to 56.
.SATURDAY...Partly cloudy in the morning then clearing. Patchy
valley fog in the morning. Highs 71 to 86.
.SATURDAY NIGHT...Partly cloudy. Patchy valley fog. Lows 48 to
58.
.SUNDAY...Sunny. Patchy valley fog. Highs 76 to 91.
.SUNDAY NIGHT THROUGH WEDNESDAY NIGHT...Partly cloudy. Patchy
valley fog. Lows 49 to 59. Highs 76 to 91.
.THURSDAY...Mostly sunny. Highs 74 to 89.
&&
TEMPERATURE / PRECIPITATION
Boonville 79 49 80 / 0 0 10
$$
CAZ113-220200-
Southeastern Interior Mendocino-
Including the cities of Calpella, Hopland, Redwood Valley,
Talmage, and Ukiah
136 AM PDT Fri Aug 21 2026
.TODAY...Mostly cloudy. Highs 73 to 88.
.TONIGHT...Partly cloudy. Lows 49 to 59.
.SATURDAY...Sunny. Highs 73 to 88.
.SATURDAY NIGHT...Partly cloudy. Lows 51 to 61.
.SUNDAY...Sunny. Highs 80 to 95.
.SUNDAY NIGHT...Partly cloudy. Lows 55 to 65.
.MONDAY...Sunny. Highs 78 to 93.
.MONDAY NIGHT THROUGH WEDNESDAY NIGHT...Partly cloudy. Lows 53 to
63. Highs 78 to 93.
.THURSDAY...Sunny. Highs 77 to 92.
&&
TEMPERATURE / PRECIPITATION
Ukiah 85 55 86 / 0 0 0
$$
CAZ114-220200-
Northern Lake-
Including the city of Gravelly Valley Airport
136 AM PDT Fri Aug 21 2026
.TODAY...Mostly cloudy. Highs 78 to 93.
.TONIGHT...Mostly clear. Lows 50 to 60.
.SATURDAY...Sunny. Highs 78 to 93.
.SATURDAY NIGHT...Mostly clear. Lows 52 to 62.
.SUNDAY...Sunny. Highs 82 to 97.
.SUNDAY NIGHT...Partly cloudy in the evening then becoming mostly
cloudy. Lows 55 to 65.
.MONDAY AND MONDAY NIGHT...Mostly clear. Highs 81 to 96. Lows
54 to 64.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy. Highs 81 to 96. Lows
53 to 63.
.WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows 53 to 63.
Highs 81 to 96.
&&
TEMPERATURE / PRECIPITATION
Lake Pillsbury 92 45 92 / 0 0 0
$$
CAZ116-220200-
Northwestern and Central Trinity-
Including the cities of Weaverville, Douglas City, Helena,
Junction City, Big Bar, Del Loma, and Burnt Ranch
136 AM PDT Fri Aug 21 2026
.TODAY...Cloudy. Highs 86 to 101. Southeast wind 5 to 15 mph.
.TONIGHT...Mostly clear. Lows 50 to 60. West wind around 10 mph.
.SATURDAY...Sunny. Highs 82 to 97. West wind around 10 mph.
.SATURDAY NIGHT...Clear. Lows 50 to 60. Northwest wind around
10 mph.
.SUNDAY...Sunny. Highs 88 to 103. East wind around 5 mph.
.SUNDAY NIGHT THROUGH MONDAY NIGHT...Mostly clear. Lows 54 to 64.
Highs 88 to 103.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy. Highs 87 to 102. Lows
53 to 63.
.WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows 50 to 60.
Highs 85 to 100.
&&
TEMPERATURE / PRECIPITATION
Big Bar 96 52 92 / 10 10 0
Weaverville 91 54 91 / 10 10 0
$$
CAZ117-220200-
Northeastern Trinity-
Including the cities of Carrville and Trinity Center
136 AM PDT Fri Aug 21 2026
.TODAY...Mostly cloudy. Highs 77 to 92. Southeast wind 5 to
15 mph.
.TONIGHT...Mostly clear. Lows 49 to 59. South wind around 15 mph
decreasing to around 5 mph overnight.
.SATURDAY...Sunny. Highs 78 to 93. Southwest wind around 10 mph.
.SATURDAY NIGHT...Clear. Lows 48 to 58. Northwest wind around
10 mph.
.SUNDAY...Sunny. Highs 80 to 95. East wind around 10 mph.
.SUNDAY NIGHT THROUGH MONDAY NIGHT...Mostly clear. Lows 52 to 62.
Highs 80 to 95.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy. Highs 80 to 95. Lows
52 to 62.
.WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows 49 to 59.
Highs 80 to 95.
&&
TEMPERATURE / PRECIPITATION
Trinity Center 90 55 91 / 10 10 0
$$
CAZ118-220200-
Western Lake-
Including the cities of Finley, Knobcone Camp, Lakeport,
Soda Bay, Lucerne, Nice, and Saratoga Springs
136 AM PDT Fri Aug 21 2026
.TODAY...Mostly cloudy. Highs 79 to 89. Northwest wind around
5 mph shifting to the southwest in the afternoon.
.TONIGHT...Partly cloudy. Lows 50 to 60. West wind 5 to 15 mph.
.SATURDAY...Sunny. Highs 79 to 89. West wind up to 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows 52 to 62. Northwest wind
around 10 mph.
.SUNDAY...Sunny. Highs 84 to 94. Southeast wind around 5 mph.
.SUNDAY NIGHT...Partly cloudy. Lows 57 to 67.
.MONDAY AND MONDAY NIGHT...Mostly clear. Highs 82 to 92. Lows
56 to 66.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy. Highs 82 to 93. Lows
55 to 65.
.WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows 55 to 65.
Highs 82 to 93.
&&
TEMPERATURE / PRECIPITATION
Lakeport 84 54 83 / 0 0 0
$$
CAZ119-220200-
Southwestern Lake-
Including the cities of Kelseyville, Mount Konocti, Adams,
Anderson Springs, Cobb, Ettawa Springs, and Forest Lake
136 AM PDT Fri Aug 21 2026
.TODAY...Mostly cloudy then becoming partly cloudy late in the
morning then becoming mostly cloudy. Highs 77 to 89. Southwest
wind 5 to 15 mph.
.TONIGHT...Mostly clear. Lows 54 to 64. West wind 5 to 15 mph.
.SATURDAY...Sunny. Highs 79 to 91. West wind around 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows 56 to 66. Northwest wind
around 10 mph.
.SUNDAY...Sunny. Highs 81 to 92. East wind around 5 mph.
.SUNDAY NIGHT...Partly cloudy. Lows 57 to 67.
.MONDAY AND MONDAY NIGHT...Mostly clear. Highs 78 to 90. Lows
56 to 66.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy. Highs 78 to 93. Lows
56 to 66.
.WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows 57 to 67.
Highs 81 to 93.
$$
CAZ120-220200-
Eastern Lake-
Including the cities of Clearlake, Clearlake Park,
Hidden Valley Lake, and Middletown
136 AM PDT Fri Aug 21 2026
.TODAY...Mostly cloudy then becoming partly cloudy late in the
morning then becoming mostly cloudy. Highs 84 to 94. West wind
around 5 mph shifting to the southwest 5 to 15 mph in the
afternoon.
.TONIGHT...Mostly clear. Lows 53 to 63. West wind 5 to 15 mph.
.SATURDAY...Sunny. Highs 83 to 94. West wind up to 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows 54 to 64. West wind around
10 mph.
.SUNDAY...Sunny. Highs 85 to 95. East wind around 5 mph.
.SUNDAY NIGHT...Partly cloudy. Lows 56 to 66.
.MONDAY AND MONDAY NIGHT...Mostly clear. Highs 84 to 94. Lows
55 to 65.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy. Highs 84 to 96. Lows
55 to 65.
.WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows 55 to 65.
Highs 85 to 96.
&&
TEMPERATURE / PRECIPITATION
Middletown 88 52 90 / 0 0 0
Clearlake 89 55 89 / 0 0 0
$$