As of 17:40 PDT

Weather in Semiahmoo, WA

49°Current weather

Semiahmoo, Thursday, 29 October, 17:40

Overcast. Feels like 49°. High 51°, low 44°.

Pressure29.94 inHg
Wind3 mph E
Humidity76%
Visibility6.2 mi
Dew point42°
Fri, 3049° / 42°0.19Rain
49 °Rain

Semiahmoo, Friday, 30 October

Rain. High 49°, low 42°.

Pressure29.94 inHg
Wind1.6 mph N
Humidity96%
Visibility2.2 mi
Dew point43°
Sat, 3153° / 37°0Overcast
53 °Overcast

Semiahmoo, Saturday, 31 October

Overcast. High 53°, low 37°.

Pressure30.06 inHg
Wind2.1 mph NW
Humidity88%
Visibility2.7 mi
Dew point44°
Sun, 0154° / 38°0Clear
54 °Clear

Semiahmoo, Sunday, 1 November

Clear. High 54°, low 38°.

Pressure30.03 inHg
Wind1.1 mph S
Humidity79%
Visibility6.2 mi
Dew point42°
Mon, 0254° / 35°0Overcast
54 °Overcast

Semiahmoo, Monday, 2 November

Overcast. High 54°, low 35°.

Pressure30.24 inHg
Wind1 mph N
Humidity84%
Visibility0.8 mi
Dew point42°
Tue, 0358° / 45°0Overcast
58 °Overcast

Semiahmoo, Tuesday, 3 November

Overcast. High 58°, low 45°.

Pressure30.18 inHg
Wind4.8 mph NW
Humidity71%
Visibility—
Dew point42°
Wed, 0455° / 43°0Overcast
55 °Overcast

Semiahmoo, Wednesday, 4 November

Overcast. High 55°, low 43°.

Pressure29.85 inHg
Wind3.2 mph W
Humidity65%
Visibility—
Dew point37°
Thu, 0553° / 45°0Overcast
53 °Overcast

Semiahmoo, Thursday, 5 November

Overcast. High 53°, low 45°.

Pressure29.80 inHg
Wind5.2 mph S
Humidity73%
Visibility—
Dew point42°
Fri, 0654° / 48°0.01Light rain
54 °Light rain

Semiahmoo, Friday, 6 November

Light rain. High 54°, low 48°.

Pressure30.06 inHg
Wind6.1 mph E
Humidity84%
Visibility—
Dew point46°
Sat, 0755° / 48°0.1Light rain
55 °Light rain

Semiahmoo, Saturday, 7 November

Light rain. High 55°, low 48°.

Pressure29.94 inHg
Wind14.7 mph S
Humidity70%
Visibility—
Dew point42°
Sun, 0855° / 44°0.22Rain
55 °Rain

Semiahmoo, Sunday, 8 November

Rain. High 55°, low 44°.

Pressure30.09 inHg
Wind9.7 mph NE
Humidity82%
Visibility—
Dew point45°
Mon, 0953° / 44°0Overcast
53 °Overcast

Semiahmoo, Monday, 9 November

Overcast. High 53°, low 44°.

Pressure29.65 inHg
Wind12.1 mph NE
Humidity66%
Visibility—
Dew point37°
Tue, 1053° / 47°0.19Light rain
53 °Light rain

Semiahmoo, Tuesday, 10 November

Light rain. High 53°, low 47°.

Pressure29.12 inHg
Wind23.5 mph S
Humidity80%
Visibility—
Dew point45°
Wed, 1149° / 46°0.37Rain
49 °Rain

Semiahmoo, Wednesday, 11 November

Rain. High 49°, low 46°.

Pressure29.59 inHg
Wind14.6 mph SW
Humidity87%
Visibility—
Dew point44°
Thu, 1250° / 43°0.22Light rain
50 °Light rain

Semiahmoo, Thursday, 12 November

Light rain. High 50°, low 43°.

Pressure29.47 inHg
Wind13.4 mph NE
Humidity76%
Visibility—
Dew point38°
Fri, 1346° / 44°0.77Rain
46 °Rain

Semiahmoo, Friday, 13 November

Rain. High 46°, low 44°.

Pressure29.77 inHg
Wind10.5 mph E
Humidity87%
Visibility—
Dew point42°

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.