As of 03:01 PDT

Weather in Semiahmoo, WA

48°Current weather

Semiahmoo, Monday, 26 October, 03:01

Overcast. Feels like 48°. High 51°, low 46°.

Pressure30.00 inHg
Wind3 mph NE
Humidity85%
Visibility6.2 mi
Dew point44°
Tue, 2748° / 43°0.24Rain
48 °Rain

Semiahmoo, Tuesday, 27 October

Rain. High 48°, low 43°.

Pressure29.97 inHg
Wind2 mph SW
Humidity91%
Visibility1.0 mi
Dew point47°
Wed, 2848° / 41°0.59Rain
48 °Rain

Semiahmoo, Wednesday, 28 October

Rain. High 48°, low 41°.

Pressure29.91 inHg
Wind4.5 mph E
Humidity90%
Visibility5.4 mi
Dew point43°
Thu, 2945° / 40°0.43Rain
45 °Rain

Semiahmoo, Thursday, 29 October

Rain. High 45°, low 40°.

Pressure30.03 inHg
Wind5.9 mph NE
Humidity89%
Visibility6.2 mi
Dew point39°
Fri, 3050° / 36°0.01Light rain
50 °Light rain

Semiahmoo, Friday, 30 October

Light rain. High 50°, low 36°.

Pressure29.97 inHg
Wind3.6 mph E
Humidity87%
Visibility—
Dew point39°
Sat, 3151° / 34°0Partly cloudy
51 °Partly cloudy

Semiahmoo, Saturday, 31 October

Partly cloudy. High 51°, low 34°.

Pressure30.03 inHg
Wind5.2 mph E
Humidity87%
Visibility—
Dew point39°
Sun, 0147° / 44°0.11Light rain
47 °Light rain

Semiahmoo, Sunday, 1 November

Light rain. High 47°, low 44°.

Pressure30.18 inHg
Wind6.3 mph E
Humidity92%
Visibility—
Dew point42°
Mon, 0251° / 40°0Overcast
51 °Overcast

Semiahmoo, Monday, 2 November

Overcast. High 51°, low 40°.

Pressure30.21 inHg
Wind7.2 mph NE
Humidity73%
Visibility—
Dew point37°
Tue, 0350° / 39°0Overcast
50 °Overcast

Semiahmoo, Tuesday, 3 November

Overcast. High 50°, low 39°.

Pressure29.85 inHg
Wind6.6 mph NE
Humidity59%
Visibility—
Dew point31°
Wed, 0449° / 46°0.48Rain
49 °Rain

Semiahmoo, Wednesday, 4 November

Rain. High 49°, low 46°.

Pressure29.85 inHg
Wind12.1 mph NE
Humidity86%
Visibility—
Dew point44°
Thu, 0550° / 47°0.91Rain
50 °Rain

Semiahmoo, Thursday, 5 November

Rain. High 50°, low 47°.

Pressure29.50 inHg
Wind17.6 mph NE
Humidity93%
Visibility—
Dew point46°
Fri, 0657° / 47°0.86Heavy rain
57 °Heavy rain

Semiahmoo, Friday, 6 November

Heavy rain. High 57°, low 47°.

Pressure29.53 inHg
Wind15.9 mph S
Humidity76%
Visibility—
Dew point47°
Sat, 0751° / 47°0.15Light rain
51 °Light rain

Semiahmoo, Saturday, 7 November

Light rain. High 51°, low 47°.

Pressure29.59 inHg
Wind10.7 mph S
Humidity89%
Visibility—
Dew point46°
Sun, 0849° / 47°1.21Heavy rain
49 °Heavy rain

Semiahmoo, Sunday, 8 November

Heavy rain. High 49°, low 47°.

Pressure29.94 inHg
Wind11.5 mph SE
Humidity92%
Visibility—
Dew point45°
Mon, 0953° / 46°1.25Heavy rain
53 °Heavy rain

Semiahmoo, Monday, 9 November

Heavy rain. High 53°, low 46°.

Pressure30.03 inHg
Wind16.6 mph S
Humidity93%
Visibility—
Dew point49°
Tue, 1053° / 43°0Partly cloudy
53 °Partly cloudy

Semiahmoo, Tuesday, 10 November

Partly cloudy. High 53°, low 43°.

Pressure30.15 inHg
Wind4.8 mph E
Humidity82%
Visibility—
Dew point43°

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.