10-day forecast for Semiahmoo, WA: 53° to 75°, with precipitation expected on 0 days. The table below breaks each day into morning, afternoon, evening and overnight.
75°
Best day: Thursday, August 13
67°
Worst day: Monday, August 17
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1073° / 53°0
Morning56°feels 55°
Afternoon71°feels 71°
Evening66°feels 66°
Overnight55°feels 55°
73 °
Semiahmoo, Monday, 10 August
Partly cloudy. High 73°, low 53°.
Pressure30.09 inHg
Wind8.4 mph S
Humidity68%
Visibility6.2 mi
Dew point54°
Tue, 1169° / 54°0
Morning59°feels 58°
Afternoon68°feels 67°
Evening61°feels 61°
Overnight56°feels 55°
69 °
Semiahmoo, Tuesday, 11 August
Clear. High 69°, low 54°.
Pressure30.12 inHg
Wind7 mph S
Humidity65%
Visibility6.2 mi
Dew point53°
Wed, 1270° / 56°0
Morning60°feels 59°
Afternoon67°feels 66°
Evening63°feels 63°
Overnight58°feels 57°
70 °
Semiahmoo, Wednesday, 12 August
Clear. High 70°, low 56°.
Pressure30.03 inHg
Wind6.3 mph SW
Humidity68%
Visibility6.2 mi
Dew point54°
Thu, 1375° / 57°0
Morning65°feels 64°
Afternoon72°feels 71°
Evening67°feels 66°
Overnight58°feels 58°
75 °
Semiahmoo, Thursday, 13 August
Clear. High 75°, low 57°.
Pressure29.88 inHg
Wind7.8 mph W
Humidity61%
Visibility—
Dew point57°
Fri, 1474° / 58°0
Morning66°feels 65°
Afternoon70°feels 70°
Evening64°feels 64°
Overnight61°feels 60°
74 °
Semiahmoo, Friday, 14 August
Partly cloudy. High 74°, low 58°.
Pressure29.88 inHg
Wind6 mph SW
Humidity55%
Visibility—
Dew point53°
Sat, 1571° / 57°0
Morning64°feels 63°
Afternoon69°feels 69°
Evening62°feels 62°
Overnight61°feels 60°
71 °
Semiahmoo, Saturday, 15 August
Overcast. High 71°, low 57°.
Pressure30.00 inHg
Wind8.4 mph SE
Humidity61%
Visibility—
Dew point55°
Sun, 1671° / 57°0
Morning64°feels 63°
Afternoon69°feels 69°
Evening62°feels 61°
Overnight60°feels 59°
71 °
Semiahmoo, Sunday, 16 August
Overcast. High 71°, low 57°.
Pressure30.06 inHg
Wind7.6 mph S
Humidity59%
Visibility—
Dew point55°
Mon, 1767° / 57°0
Morning62°feels 62°
Afternoon66°feels 65°
Evening60°feels 60°
Overnight59°feels 58°
67 °
Semiahmoo, Monday, 17 August
Partly cloudy. High 67°, low 57°.
Pressure30.15 inHg
Wind12.8 mph SE
Humidity61%
Visibility—
Dew point52°
Tue, 1871° / 55°0
Morning62°feels 61°
Afternoon67°feels 67°
Evening62°feels 61°
Overnight59°feels 58°
71 °
Semiahmoo, Tuesday, 18 August
Overcast. High 71°, low 55°.
Pressure30.15 inHg
Wind5.4 mph SW
Humidity62%
Visibility—
Dew point54°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Semiahmoo, WA around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.