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As of 10:41 PST

Weather in Semiahmoo, WA

47°Current weather

Semiahmoo, Monday, 2 November, 10:41

Overcast. Feels like 47°. High 49°, low 40°.

Pressure30.21 inHg
Wind2.3 mph S
Humidity81%
Visibility2.4 mi
Dew point42°
Tue, 0353° / 43°0Overcast
53 °Overcast

Semiahmoo, Tuesday, 3 November

Overcast. High 53°, low 43°.

Pressure30.09 inHg
Wind1.6 mph NW
Humidity72%
Visibility6.2 mi
Dew point41°
Wed, 0457° / 37°0.07Rain
57 °Rain

Semiahmoo, Wednesday, 4 November

Rain. High 57°, low 37°.

Pressure30.03 inHg
Wind3.8 mph NE
Humidity67%
Visibility6.2 mi
Dew point44°
Thu, 0554° / 47°0.13Rain
54 °Rain

Semiahmoo, Thursday, 5 November

Rain. High 54°, low 47°.

Pressure30.15 inHg
Wind8.5 mph S
Humidity85%
Visibility6.2 mi
Dew point48°
Fri, 0655° / 45°0.7Rain
55 °Rain

Semiahmoo, Friday, 6 November

Rain. High 55°, low 45°.

Pressure29.97 inHg
Wind16.5 mph S
Humidity95%
Visibility—
Dew point49°
Sat, 0753° / 42°0Overcast
53 °Overcast

Semiahmoo, Saturday, 7 November

Overcast. High 53°, low 42°.

Pressure30.09 inHg
Wind7.4 mph E
Humidity83%
Visibility—
Dew point42°
Sun, 0852° / 45°0.15Rain
52 °Rain

Semiahmoo, Sunday, 8 November

Rain. High 52°, low 45°.

Pressure30.15 inHg
Wind17.8 mph SW
Humidity75%
Visibility—
Dew point43°
Mon, 0950° / 43°0.19Rain
50 °Rain

Semiahmoo, Monday, 9 November

Rain. High 50°, low 43°.

Pressure30.00 inHg
Wind6.6 mph E
Humidity73%
Visibility—
Dew point38°
Tue, 1055° / 43°0Overcast
55 °Overcast

Semiahmoo, Tuesday, 10 November

Overcast. High 55°, low 43°.

Pressure30.06 inHg
Wind6 mph NW
Humidity80%
Visibility—
Dew point43°
Wed, 1155° / 44°0Mostly clear
55 °Mostly clear

Semiahmoo, Wednesday, 11 November

Mostly clear. High 55°, low 44°.

Pressure29.94 inHg
Wind5.6 mph NE
Humidity64%
Visibility—
Dew point38°
Thu, 1254° / 48°0.39Rain
54 °Rain

Semiahmoo, Thursday, 12 November

Rain. High 54°, low 48°.

Pressure29.71 inHg
Wind16.4 mph SE
Humidity90%
Visibility—
Dew point46°
Fri, 1353° / 46°0.35Rain
53 °Rain

Semiahmoo, Friday, 13 November

Rain. High 53°, low 46°.

Pressure30.09 inHg
Wind15 mph SW
Humidity91%
Visibility—
Dew point47°
Sat, 1456° / 45°0Overcast
56 °Overcast

Semiahmoo, Saturday, 14 November

Overcast. High 56°, low 45°.

Pressure30.27 inHg
Wind7.2 mph E
Humidity75%
Visibility—
Dew point42°
Sun, 1553° / 45°0.06Light rain
53 °Light rain

Semiahmoo, Sunday, 15 November

Light rain. High 53°, low 45°.

Pressure29.80 inHg
Wind14.2 mph SW
Humidity69%
Visibility—
Dew point39°
Mon, 1650° / 46°0.02Light rain
50 °Light rain

Semiahmoo, Monday, 16 November

Light rain. High 50°, low 46°.

Pressure30.18 inHg
Wind13.6 mph S
Humidity85%
Visibility—
Dew point45°
Tue, 1750° / 42°0Overcast
50 °Overcast

Semiahmoo, Tuesday, 17 November

Overcast. High 50°, low 42°.

Pressure30.00 inHg
Wind6.4 mph E
Humidity74%
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.