As of 02:45 PST

Weather in Semiahmoo, WA

51°Current weather

Semiahmoo, Sunday, 15 November, 02:45

Overcast. Feels like 50°. High 53°, low 46°.

Pressure29.53 inHg
Wind11.3 mph SE
Humidity78%
Visibility6.2 mi
Dew point45°
Mon, 1653° / 43°0.19Rain
53 °Rain

Semiahmoo, Monday, 16 November

Rain. High 53°, low 43°.

Pressure30.06 inHg
Wind4.5 mph E
Humidity73%
Visibility6.2 mi
Dew point41°
Tue, 1750° / 38°0.13Light rain
50 °Light rain

Semiahmoo, Tuesday, 17 November

Light rain. High 50°, low 38°.

Pressure30.00 inHg
Wind5.5 mph NE
Humidity87%
Visibility3.4 mi
Dew point43°
Wed, 1849° / 35°0Partly cloudy
49 °Partly cloudy

Semiahmoo, Wednesday, 18 November

Partly cloudy. High 49°, low 35°.

Pressure30.00 inHg
Wind3 mph NW
Humidity69%
Visibility6.2 mi
Dew point37°
Thu, 1948° / 31°0Partly cloudy
48 °Partly cloudy

Semiahmoo, Thursday, 19 November

Partly cloudy. High 48°, low 31°.

Pressure30.15 inHg
Wind4.7 mph W
Humidity93%
Visibility—
Dew point35°
Fri, 2047° / 33°0Mostly clear
47 °Mostly clear

Semiahmoo, Friday, 20 November

Mostly clear. High 47°, low 33°.

Pressure29.97 inHg
Wind8.3 mph NE
Humidity79%
Visibility—
Dew point33°
Sat, 2142° / 38°0.06Light rain
42 °Light rain

Semiahmoo, Saturday, 21 November

Light rain. High 42°, low 38°.

Pressure29.91 inHg
Wind10.9 mph E
Humidity61%
Visibility—
Dew point29°
Sun, 2248° / 40°0.14Light rain
48 °Light rain

Semiahmoo, Sunday, 22 November

Light rain. High 48°, low 40°.

Pressure29.91 inHg
Wind12.5 mph NE
Humidity81%
Visibility—
Dew point38°
Mon, 2349° / 44°0.63Rain
49 °Rain

Semiahmoo, Monday, 23 November

Rain. High 49°, low 44°.

Pressure29.85 inHg
Wind15.6 mph S
Humidity85%
Visibility—
Dew point42°
Tue, 2454° / 46°0.59Rain
54 °Rain

Semiahmoo, Tuesday, 24 November

Rain. High 54°, low 46°.

Pressure29.53 inHg
Wind14.9 mph S
Humidity93%
Visibility—
Dew point44°
Wed, 2552° / 48°0.08Light rain
52 °Light rain

Semiahmoo, Wednesday, 25 November

Light rain. High 52°, low 48°.

Pressure29.74 inHg
Wind8.6 mph E
Humidity91%
Visibility—
Dew point46°
Thu, 2650° / 44°0Overcast
50 °Overcast

Semiahmoo, Thursday, 26 November

Overcast. High 50°, low 44°.

Pressure30.24 inHg
Wind4.2 mph NE
Humidity92%
Visibility—
Dew point46°
Fri, 2750° / 41°0Overcast
50 °Overcast

Semiahmoo, Friday, 27 November

Overcast. High 50°, low 41°.

Pressure30.36 inHg
Wind4.9 mph NE
Humidity83%
Visibility—
Dew point39°
Sat, 2850° / 40°0Clear
50 °Clear

Semiahmoo, Saturday, 28 November

Clear. High 50°, low 40°.

Pressure30.12 inHg
Wind4.6 mph E
Humidity72%
Visibility—
Dew point36°
Sun, 2950° / 41°0Overcast
50 °Overcast

Semiahmoo, Sunday, 29 November

Overcast. High 50°, low 41°.

Pressure30.15 inHg
Wind4.9 mph E
Humidity67%
Visibility—
Dew point34°
Mon, 3049° / 41°0Overcast
49 °Overcast

Semiahmoo, Monday, 30 November

Overcast. High 49°, low 41°.

Pressure30.09 inHg
Wind4.4 mph NE
Humidity67%
Visibility—
Dew point38°

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Semiahmoo, WA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Semiahmoo, WA since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.