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As of 08:01 PDT

Weather in Semiahmoo, WA

47°Current weather

Semiahmoo, Thursday, 22 October, 08:01

Light rain. Feels like 47°. High 56°, low 44°.

Pressure29.91 inHg
Wind2.3 mph NE
Humidity95%
Visibility0.9 mi
Dew point45°
Fri, 2354° / 40°0Overcast
54 °Overcast

Semiahmoo, Friday, 23 October

Overcast. High 54°, low 40°.

Pressure30.33 inHg
Wind1.2 mph NW
Humidity89%
Visibility5.2 mi
Dew point45°
Sat, 2450° / 42°0.09Light rain
50 °Light rain

Semiahmoo, Saturday, 24 October

Light rain. High 50°, low 42°.

Pressure30.21 inHg
Wind0.7 mph NE
Humidity95%
Visibility1.6 mi
Dew point45°
Sun, 2554° / 46°0.16Light rain
54 °Light rain

Semiahmoo, Sunday, 25 October

Light rain. High 54°, low 46°.

Pressure30.00 inHg
Wind7.9 mph E
Humidity84%
Visibility6.2 mi
Dew point46°
Mon, 2654° / 45°0.04Light rain
54 °Light rain

Semiahmoo, Monday, 26 October

Light rain. High 54°, low 45°.

Pressure30.06 inHg
Wind4 mph NW
Humidity94%
Visibility—
Dew point46°
Tue, 2752° / 40°0Overcast
52 °Overcast

Semiahmoo, Tuesday, 27 October

Overcast. High 52°, low 40°.

Pressure30.18 inHg
Wind3.7 mph E
Humidity99%
Visibility—
Dew point45°
Wed, 2855° / 41°0Clear
55 °Clear

Semiahmoo, Wednesday, 28 October

Clear. High 55°, low 41°.

Pressure30.30 inHg
Wind5.9 mph NW
Humidity69%
Visibility—
Dew point39°
Thu, 2956° / 41°0Clear
56 °Clear

Semiahmoo, Thursday, 29 October

Clear. High 56°, low 41°.

Pressure29.97 inHg
Wind5.4 mph W
Humidity53%
Visibility—
Dew point33°
Fri, 3052° / 41°0Clear
52 °Clear

Semiahmoo, Friday, 30 October

Clear. High 52°, low 41°.

Pressure30.00 inHg
Wind5.2 mph S
Humidity72%
Visibility—
Dew point40°
Sat, 3150° / 45°0Overcast
50 °Overcast

Semiahmoo, Saturday, 31 October

Overcast. High 50°, low 45°.

Pressure30.06 inHg
Wind5.3 mph S
Humidity79%
Visibility—
Dew point43°
Sun, 0151° / 47°0.03Light rain
51 °Light rain

Semiahmoo, Sunday, 1 November

Light rain. High 51°, low 47°.

Pressure30.12 inHg
Wind5.9 mph SE
Humidity68%
Visibility—
Dew point40°
Mon, 0258° / 47°0Overcast
58 °Overcast

Semiahmoo, Monday, 2 November

Overcast. High 58°, low 47°.

Pressure30.12 inHg
Wind5.7 mph NE
Humidity78%
Visibility—
Dew point44°
Tue, 0359° / 45°0Light rain
59 °Light rain

Semiahmoo, Tuesday, 3 November

Light rain. High 59°, low 45°.

Pressure29.80 inHg
Wind20.2 mph S
Humidity59%
Visibility—
Dew point38°
Wed, 0457° / 52°0.4Rain
57 °Rain

Semiahmoo, Wednesday, 4 November

Rain. High 57°, low 52°.

Pressure29.77 inHg
Wind32 mph SE
Humidity76%
Visibility—
Dew point46°
Thu, 0554° / 49°1.04Rain
54 °Rain

Semiahmoo, Thursday, 5 November

Rain. High 54°, low 49°.

Pressure29.56 inHg
Wind30 mph S
Humidity96%
Visibility—
Dew point50°
Fri, 0651° / 48°0.38Rain
51 °Rain

Semiahmoo, Friday, 6 November

Rain. High 51°, low 48°.

Pressure29.65 inHg
Wind13.8 mph E
Humidity91%
Visibility—
Dew point48°

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.