Weather in Arcata

14-day forecast · updated today, Wednesday, October 28, at 9:53 pm (PDT)

Now · overcast 47 °F

Feels like: 44 °F
Low / high: 39 / 57 °F
Rain: 0%
Wind: 2 mph NNE

→ 30.06 inHg · steady

Today in Arcata: overcast, 39 °F to 57 °F, with a 0% chance of rain and a light air from the north-northeast (2 mph). Tomorrow, overcast, 43 °F to 57 °F and a 2% chance of rain. The warmest day of the week is Tuesday 3, at 58 °F. Next likely rain: Saturday 31 (40%).

Measured now at the airport

Arcata (KACV), 7.8 mi away · 1 h 1 min ago

Visibility9.9 mi or more

WeatherNothing to note

Temperature46 °F

Wind5 mph from the northeast

It's what the airport's weather station measured, not a forecast: on the coast, wind and fog can be different. Airports report every 30 or 60 minutes.

Airport METAR report, via NOAA's Aviation Weather Center (aviationweather.gov). Sources and licenses

Temperatures for the next 14 days

57° 39°
Today
57° 43°
Thu 29
55° 43°
Fri 30
53° 43°
Sat 31
55° 41°
Sun 1
58° 44°
Mon 2
58° 48°
Tue 3
58° 48°
Wed 4
57° 49°
Thu 5
55° 49°
Fri 6
56° 49°
Sat 7
64° 50°
Sun 8
70° 54°
Mon 9
72° 54°
Tue 10

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	High tides	Model
Today · 28	Overcast	39 / 57 °F	0%	11 mph N	5.6 ft	3:06 am · 2:03 pm	HRRR
Thu 29	Overcast	43 / 57 °F	2%	11 mph N	5.5 ft	4:03 am · 2:49 pm	HRRR + NBM
Fri 30	Overcast	43 / 55 °F	3%	4 mph NNE	4.9 ft	5:04 am · 3:42 pm	NBM
Sat 31	Drizzle	43 / 53 °F	40% · 0.05 in	3 mph NE	3.9 ft	6:10 am · 4:45 pm	NBM
Sun 1	Partly cloudy	41 / 55 °F	7%	8 mph NNE	5.5 ft	6:16 am · 5:00 pm	NBM
Mon 2	Overcast	44 / 58 °F	19% · 0.01 in	3 mph ESE	7.8 ft	7:16 am · 6:21 pm	NBM
Tue 3	Overcast	48 / 58 °F	19% · 0.16 in	2 mph ESE	7.7 ft	8:08 am · 7:42 pm	NBM
Wed 4	Overcast	48 / 58 °F	28% · 0.01 in	3 mph SSE	6.2 ft	8:51 am · 8:57 pm	NBM
Thu 5	Light drizzle	49 / 57 °F	28% · 0.11 in	4 mph S	7.0 ft	9:29 am · 10:03 pm	NBM
Fri 6	Drizzle	49 / 55 °F	25% · 0.12 in	3 mph S	10 ft	10:04 am · 11:02 pm	NBM
Sat 7	Heavy drizzle	49 / 56 °F	21% · 0.12 in	3 mph SSE	7.5 ft	10:36 am · 11:55 pm	NBM
Sun 8	Light rain	50 / 64 °F	28% · 0.14 in	5 mph SSE	8.3 ft	11:07 am	NBM + ECMWF
Mon 9	Overcast	54 / 70 °F	24%	5 mph SE	7.8 ft	12:43 am · 11:38 am	ECMWF
Tue 10	Overcast	54 / 72 °F	37%	10 mph SSE	7.2 ft	1:27 am · 12:08 pm	ECMWF

Each hour comes from the best model for this spot: HRRR until Thursday 29 4:00 pm; then NBM until Sunday 8 5:00 pm; then ECMWF until Thursday 12 7:00 am; then GFS.

Each day comes from the best model covering this spot: regional ones first (HRRR and NBM in the U.S., AROME, ICON-EU), then ECMWF; day 16, NOAA GFS. Waves: Météo-France up to day 10, then ECMWF WAM, coarser and further offshore. High tides: our own tide calculation.

Today, every 3 hours

Time	12:00 am	3:00 am	6:00 am	9:00 am	12:00 pm	3:00 pm	6:00 pm	9:00 pm
Sky	Clear	Clear	Clear	Clear sky	Clear sky	Clear sky	Partly cloudy	Overcast
Temperature	44°	41°	39°	42°	55°	57°	52°	48°
Chance of rain	0%	0%	0%	0%	0%	0%	0%	0%
Rain	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in
Wind (mph)	1 E	4 E	2 SE	2 SE	6 NW	11 NNW	5 NNW	3 NE
Humidity	80%	76%	76%	82%	72%	72%	83%	76%
UV	0	0	0	0	3	2	0	0
Model	HRRR	HRRR	HRRR	HRRR	HRRR	HRRR	HRRR	HRRR

Do the models agree?

High confidence

The models agree for the next few days: the forecast is fairly solid.

What 6 forecast models say for the next few days. The closer they are, the more reliable the forecast.

HighRainWind

Do the models agree? · High
High (°F)	Today	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF	60°	59°	61°	53°	59°	69°	68°
AIFS	58°	57°	57°	53°	56°	61°	61°
GFS	60°	59°	60°	61°	61°	66°	69°
ICON	58°	57°	58°	58°	55°	67°	65°
HRRR	57°	57°	—	—	—	—	—
NBM	56°	55°	55°	53°	55°	58°	58°
Confidence	high	high	high	high	high	medium	medium

Do the models agree? · Rain
Rain	Today	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF	0	0	0	0.28 in	0	0	0
AIFS	0	0	0	0.14 in	0	0	0
GFS	0	0	0	0	0	0	0
ICON	0	0	0	0.09 in	0	0	0
HRRR	0	0	—	—	—	—	—
NBM	0	0	0	0.05 in	0	0.01 in	0.16 in
Confidence	high	high	high	high	high	high	high

Do the models agree? · Wind
Wind (mph)	Today	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF	823	619	516	311	617	413	311
AIFS	9	7	6	5	9	3	3
GFS	813	69	77	89	77	54	55
ICON	614	613	512	410	615	49	59
HRRR	1117	1116	—	—	—	—	—
NBM	912	710	45	34	88	34	23
Confidence	high	high	high	high	high	high	high

Chance of rain from the ensemble models

Model	Today	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF (51 scenarios)	0%	0%	4%	76%	17%	8%	7%
GFS (GEFS, 31 scenarios)	0%	0%	3%	48%	3%	7%	24%
NBM (NOAA)	0%	2%	3%	40%	7%	19%	19%
Thunderstorm (NBM)	0%	0%	0%	2%	0%	0%	0%

Each model's day runs midnight to midnight local time; models that reach fewer days are left blank. Rain: daily total. Wind: the day's highest average wind and, in small type, the strongest gust. Highlighted: values that stand out from the rest. The chance of rain comes from many runs of the same model with slightly different starting data.

Outlook

How the coming weeks and months compare with what is normal for the time of year. It is a trend, not a day-by-day forecast.

Next few weeks, compared with normal: warmer, wetter and a much warmer sea.

Next 6 weeks

When	TemperatureTemp.	Rain	Sea	Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8	Above +3.2 °F	A bit below −35%	Well above +7.0 °F	—
Nov 9 – Nov 15Nov 9–Nov 15	Well above +5.6 °F	Well above +118%	Well above +8.8 °F	60° / 54°
Nov 16 – Nov 22Nov 16–Nov 22	Above +4.7 °F	Above +71%	Well above +9.5 °F	58° / 52°
Nov 23 – Nov 29Nov 23–Nov 29	Above +4.9 °F	A bit above +45%	Well above +10.1 °F	58° / 51°
Nov 30 – Dec 6Nov 30–Dec 6	Above +4.3 °F	A bit above +33%	Well above +9.9 °F	57° / 50°

Coming months

When	TemperatureTemp.	Rain	Sea
November	Above +4.0 °F	A bit above +31%	Well above +8.5 °F
December	Above +5.2 °F	A bit above +42%	Well above +10.3 °F
January	Above +4.5 °F	Above +81%	Well above +8.5 °F
February	Above +3.1 °F	Above +56%	Well above +6.5 °F
March	Above +3.4 °F	Above +53%	Well above +5.0 °F

Weeks: ECMWF 46-day (average of its scenarios), against the normal of the last 20 years for those dates. Months: ECMWF SEAS5. Rain: total against normal. The further ahead, the closer it gets to normal and the less detail it can give.

Arcata climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit Arcata is from July to September: highs of 71 °F, barely 1 rainy day a month and 8 hours of sunshine a day.

56° 40°

JanJ
57° 41°

FebF
58° 42°

MarM
61° 44°

AprA
64° 47°

MayM
66° 50°

JunJ
69° 52°

JulJ
71° 52°

AugA
70° 50°

SepS
67° 46°

OctO
60° 43°

NovN
55° 40°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves
JanuaryJan	56°	40°	6.20 in	14	2.7	52°	8.1 ft
FebruaryFeb	57°	41°	5.57 in	12	3.7	52°	7.6 ft
MarchMar	58°	42°	5.62 in	13	5.4	52°	7.2 ft
AprilApr	61°	44°	3.23 in	10	6.0	52°	6.7 ft
MayMay	64°	47°	1.78 in	6	7.6	52°	5.5 ft
JuneJun	66°	50°	0.79 in	3	9.0	53°	5.3 ft
JulyJul	69°	52°	0.17 in	1	9.2	54°	5.1 ft
AugustAug	71°	52°	0.30 in	1	8.3	55°	4.5 ft
SeptemberSep	70°	50°	0.76 in	2	7.7	55°	5.2 ft
OctoberOct	67°	46°	2.81 in	6	5.9	54°	6.2 ft
NovemberNov	60°	43°	5.43 in	11	3.8	53°	7.2 ft
DecemberDec	55°	40°	7.92 in	14	2.3	52°	8.2 ft

Month	Water	Waves
Jan	52°	8.1 ft
Feb	52°	7.6 ft
Mar	52°	7.2 ft
Apr	52°	6.7 ft
May	52°	5.5 ft
Jun	53°	5.3 ft
Jul	54°	5.1 ft
Aug	55°	4.5 ft
Sep	55°	5.2 ft
Oct	54°	6.2 ft
Nov	53°	7.2 ft
Dec	52°	8.2 ft

Days: rainy days in the month. Sun: hours a day.

A normal year brings 40.57 in of rain on about 92 days and about 2,200 hours of sunshine.

1991–2020 averages. Highs, lows and rainfall: TerraClimate; rainy days (0.04 in or more): NASA POWER (MERRA-2); sunshine hours: estimated from solar radiation; water: NOAA OISST; waves (average height): ERA5, 2011–2020. Normals are not a forecast: any given year can turn out very different. Sources and licenses

Temperature

Now47 °Ffeels like 44 °F

Tomorrow43 / 57 °F

It's 47 °F now (feels like 44 °F). Today, 39 °F to 57 °F; tomorrow, 43 °F to 57 °F.

Chance of rain

Today 0%
Thu 29 2%
Fri 30 3%
Sat 31 40% 0.05 in
Sun 1 7%
Mon 2 19% 0.01 in
Tue 3 19% 0.16 in

Today the chance of rain reaches 0%. The next day with likely rain is Saturday 31: 40% and 0.05 in.

Recent rain: last 24 hours, 0.00 in; last 3 days, 0.20 in; last 7 days, 0.51 in.

Humidity and dew point

Humidity73%

Dew point39 °F

Humidity is 73% now and the dew point is 39 °F.

The dew point is the temperature at which the air becomes saturated: the higher it is, the heavier the air feels.

Visibility and fog

Now11 migood

Clouds100%

Visibility is good now (11 mi). No fog expected today.

UV index

Now0

Today's peak3moderate

Thu 29: 3 · Fri 30: 3 · Sat 31: 2

Index	Level	What to do
0–2	low	No special protection needed.
3–5	moderate	Hat, sunglasses and sunscreen around midday.
6–7	high	Sunscreen, hat and shade between 12 and 4 pm.
8–10	very high	Avoid the midday sun; reflection off the water adds to it.
11+	extreme	Avoid the sun between 11 am and 5 pm; protect yourself even if it is cloudy.

Reflection off water and sand adds radiation: protect yourself more on a boat or at the beach.

Barometric pressure

↗ Rising Anglers say fish bite less for a while
→ Steady · now Anglers expect normal activity
↘ Falling Anglers say fish feed more before the change

29.9030.0030.1030.20 29.91

Steady now (+0.01 inHg in 3 hours). Over the next 48 hours: −0.11 inHg. Steady pressure: anglers expect normal activity. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityGood · 37

Saharan dustNo

Previous days

The weather over the last 30 days, as the models analyzed it. Tap a day to see it hour by hour.

Day	Sky	Low / high	Rain	Max wind
Tue 27	Light drizzle	42 / 57 °F	0.02 in	9 mph N
Mon 26	Heavy drizzle	46 / 59 °F	0.20 in	6 mph S
Sun 25	Overcast	47 / 64 °F	0	5 mph WSW
Sat 24	Overcast	41 / 68 °F	0	4 mph NW
Fri 23	Overcast	43 / 60 °F	0	9 mph NW
Thu 22	Heavy drizzle	53 / 58 °F	0.31 in	5 mph WSW
Wed 21	Overcast	51 / 72 °F	0	3 mph NNE

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Tue 20	Light drizzle	47 / 66 °F	0.01 in	5 mph NNW
Mon 19	Drizzle	48 / 60 °F	0.06 in	6 mph NW
Sun 18	Overcast	51 / 64 °F	0	5 mph W
Sat 17	Overcast	52 / 68 °F	0	4 mph NW
Fri 16	Overcast	56 / 78 °F	0	4 mph WNW
Thu 15	Clear sky	49 / 86 °F	0	5 mph NE
Wed 14	Mainly clear	50 / 72 °F	0	4 mph NW
Tue 13	Partly cloudy	45 / 68 °F	0	5 mph NW
Mon 12	Clear sky	43 / 65 °F	0	7 mph NW
Sun 11	Clear sky	42 / 63 °F	0	14 mph NNW
Sat 10	Overcast	48 / 61 °F	0	13 mph NNW
Fri 9	Overcast	54 / 66 °F	0	5 mph NW
Thu 8	Partly cloudy	61 / 80 °F	0	3 mph NW
Wed 7	Partly cloudy	61 / 79 °F	0	4 mph NW
Tue 6	Partly cloudy	60 / 77 °F	0	4 mph NW
Mon 5	Partly cloudy	61 / 74 °F	0	4 mph NW
Sun 4	Overcast	64 / 78 °F	0	2 mph NNW
Sat 3	Overcast	60 / 78 °F	0	4 mph NW
Fri 2	Overcast	58 / 74 °F	0	4 mph NW
Thu 1	Overcast	58 / 77 °F	0	4 mph WNW
Wed 30	Overcast	55 / 72 °F	0	4 mph WNW
Tue 29	Overcast	51 / 69 °F	0	8 mph NNW
Mon 28	Partly cloudy	50 / 66 °F	0	6 mph NW

These are the models at the start of each day (ECMWF and GFS; waves from Météo-France), not readings from a weather station: there can be differences at specific spots.

Questions about the weather in ArcataQuestions

What's the weather like today in Arcata?

Overcast, from 39 °F to 57 °F, with a light air from the north-northeast (2 mph) and a 0% chance of rain.

Will it rain tomorrow in Arcata?

On Thursday 29 the chance of rain is 2% (0.00 in): overcast.

How warm will it be this week?

Between a low of 39 °F and a high of 58 °F; the warmest day, Tuesday 3.

What's the UV index today?

It reaches 3 (moderate). Hat, sunglasses and sunscreen around midday.

Is the pressure rising or falling?

It's 30.06 inHg and steady: −0.05 inHg over the last 24 hours.

When is the best time to visit Arcata?

The best time to visit Arcata is from July to September: highs of 71 °F, barely 1 rainy day a month and 8 hours of sunshine a day.

What is the weather like in Arcata in October?

In October, Arcata normally sees highs of 67 °F and lows of 46 °F, with about 6 rainy days (2.81 in for the month) and 6 hours of sunshine a day. The sea is around 54 °F. These are 1991–2020 averages.

What are the warmest and wettest months in Arcata?

The warmest is August, with average highs of 71 °F, and the coldest December, with lows of 40 °F. The wettest is December (7.92 in) and the driest, July.

More about Arcata today

Weather near Arcata

Only places with a different forecast: spots a few miles apart share the same model cell and wouldn't add anything.

Learn more

Weather: Open-Meteo, CC BY 4.0, with the best model for each spot and lead time (NOAA HRRR and NBM in the U.S., Météo-France AROME, DWD ICON-EU, ECMWF IFS and NOAA GFS); ECMWF grid point 9.1 mi away. The comparison also uses ICON (DWD), AIFS (ECMWF) and ARPEGE (Météo-France). Outlook: ECMWF 46-day and SEAS5. Chance of rain from ensemble models (ECMWF, GEFS and NBM). UV, air quality and pollen: CAMS (Copernicus).

Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 9:53 pm (local time).

Spotted a mistake? Tell us · Where the weather and sea data come from