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Whatcom County, WA Weather - 14-Day Weather Forecast

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Whatcom County WA Weather - Clear - 47°F
Clear
47°F
Updated 6:06 am
Feels Like 30°F
Humidity 68%
Wind NNW 7 mph
Barometer  29.97 in
Dew Point 37°F
Whatcom County WA Weather - Clear - 8°C
Clear
8°C
Updated 6:06 am
Feels Like -1°C
Humidity 68%
Wind NNW 11 km/h
Barometer  101.5 kPa
Dew Point 3°C
Whatcom County, WA Weather and Current Conditionswhatcom county wa weather forecast

Whatcom County, WA Weather Forecast

Whatcom County Washington WeatherWhatcom County, Washington Weather Weather Forecast
14 day API forecast for Whatcom County, Washington. Note. The 7-day weather forecast for Whatcom County, WA is the most reliable and accurate forecast. This model should only be used as a likely scenario. It is difficult to predict weather more than 7 days in advance.
Whatcom County, WA Weather Forecast Dated: 606 AM Sun Oct 11 2026
Expect a cool pattern with more clouds than sun and occasional showers over the coming period. generally humid conditions and a stable pattern will dominate.

Sunday, October 11, 2026

Mid-Morning
Whatcom County Weather - 2026-10-11 - Morning - Sunny
44°F 7°C
Sunny
Mid-Afternoon
Whatcom County Weather - 2026-10-11 - Afternoon - Sunny
56°F 14°C
Sunny
Early-Evening
Whatcom County Weather - 2026-10-11 - Evening - Sunny
42°F 6°C
Sunny
Brisk around 56°F 14°C, sunny throughout the day, with steady humidity and steady pressure.

Monday, October 12, 2026

Mid-Morning
Whatcom County Weather - 2026-10-12 - Morning - Sunny
45°F 7°C
Sunny
Mid-Afternoon
Whatcom County Weather - 2026-10-12 - Afternoon - Sunny
54°F 12°C
Sunny
Early-Evening
Whatcom County Weather - 2026-10-12 - Evening - Partly Cloudy
41°F 5°C
Partly Cloudy
Cool and brisk at 54°F 12°C, sunny through the afternoon, turning partly cloudy this evening, with increasing humidity and steady pressure.

Tuesday, October 13, 2026

Mid-Morning
Whatcom County Weather - 2026-10-13 - Morning - Partly Cloudy
48°F 9°C
Partly Cloudy
Mid-Afternoon
Whatcom County Weather - 2026-10-13 - Afternoon - Overcast
51°F 11°C
Overcast
Early-Evening
Whatcom County Weather - 2026-10-13 - Evening - Overcast
48°F 9°C
Overcast
Chilly near 51°F 11°C, partly cloudy in the morning, becoming overcast through the afternoon and evening, with increasing humidity and steady pressure.

Wednesday, October 14, 2026

Mid-Morning
Whatcom County Weather - 2026-10-14 - Morning - Light Fog
49°F 9°C
Light Fog
Mid-Afternoon
Whatcom County Weather - 2026-10-14 - Afternoon - Light Fog
52°F 11°C
Light Fog
Early-Evening
Whatcom County Weather - 2026-10-14 - Evening - Light Fog
49°F 9°C
Light Fog
Crisp with a high near 52°F 11°C, overcast throughout the day, with steady humidity and steady pressure.

Thursday, October 15, 2026

Mid-Morning
Whatcom County Weather - 2026-10-15 - Morning - Overcast
48°F 9°C
Overcast
Mid-Afternoon
Whatcom County Weather - 2026-10-15 - Afternoon - Overcast
66°F 19°C
Overcast
Early-Evening
Whatcom County Weather - 2026-10-15 - Evening - Overcast
53°F 12°C
Overcast
Refreshing around 66°F 19°C, overcast throughout the day, with lower humidity and steady pressure.

Friday, October 16, 2026

Mid-Morning
Whatcom County Weather - 2026-10-16 - Morning - Overcast
54°F 12°C
Overcast
Mid-Afternoon
Whatcom County Weather - 2026-10-16 - Afternoon - Overcast
66°F 19°C
Overcast
Early-Evening
Whatcom County Weather - 2026-10-16 - Evening - Overcast
56°F 13°C
Overcast
Mildly cool near 66°F 19°C, overcast throughout the day, with steady humidity and barometric pressure falling.

Saturday, October 17, 2026

Mid-Morning
Whatcom County Weather - 2026-10-17 - Morning - Partly Cloudy
54°F 12°C
Partly Cloudy
Mid-Afternoon
Whatcom County Weather - 2026-10-17 - Afternoon - Drizzle
59°F 15°C
Drizzle
Early-Evening
Whatcom County Weather - 2026-10-17 - Evening - Drizzle
53°F 11°C
Drizzle
Comfortable at 59°F 15°C, drier morning followed by showers lasting through evening, with increasing humidity and steady pressure.

Sunday, October 18, 2026

Mid-Morning
Whatcom County Weather - 2026-10-18 - Morning - Drizzle
48°F 9°C
Drizzle
Mid-Afternoon
Whatcom County Weather - 2026-10-18 - Afternoon - Light Showers
54°F 12°C
Light Showers
Early-Evening
Whatcom County Weather - 2026-10-18 - Evening - Light Showers
50°F 10°C
Light Showers
Crisp with a high near 54°F 12°C, persistent showers off and on through the day, with steady humidity and steady pressure.

Monday, October 19, 2026

Mid-Morning
Whatcom County Weather - 2026-10-19 - Morning - Drizzle
47°F 9°C
Drizzle
Mid-Afternoon
Whatcom County Weather - 2026-10-19 - Afternoon - Light Showers
49°F 9°C
Light Showers
Early-Evening
Whatcom County Weather - 2026-10-19 - Evening - Cloudy
43°F 6°C
Cloudy
Brisk around 49°F 9°C, showers through the afternoon, tapering off by evening, with steady humidity and steady pressure. Winds turning from the SSW to the SSE at 6 mph 9 km/h.

Tuesday, October 20, 2026

Mid-Morning
Whatcom County Weather - 2026-10-20 - Morning - Scattered Showers
44°F 7°C
Scattered Showers
Mid-Afternoon
Whatcom County Weather - 2026-10-20 - Afternoon - Scattered Showers
46°F 8°C
Scattered Showers
Early-Evening
Whatcom County Weather - 2026-10-20 - Evening - Scattered Showers
45°F 7°C
Scattered Showers
Cool and brisk at 46°F 8°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure.

Wednesday, October 21, 2026

Mid-Morning
Whatcom County Weather - 2026-10-21 - Morning - Cloudy
40°F 4°C
Cloudy
Mid-Afternoon
Whatcom County Weather - 2026-10-21 - Afternoon - Overcast
54°F 12°C
Overcast
Early-Evening
Whatcom County Weather - 2026-10-21 - Evening - Overcast
46°F 8°C
Overcast
Chilly near 54°F 12°C, overcast in the morning, partly cloudy in the afternoon, and overcast this evening, with lower humidity and barometric pressure falling.

Thursday, October 22, 2026

Mid-Morning
Whatcom County Weather - 2026-10-22 - Morning - Overcast
47°F 8°C
Overcast
Mid-Afternoon
Whatcom County Weather - 2026-10-22 - Afternoon - Partly Cloudy
55°F 13°C
Partly Cloudy
Early-Evening
Whatcom County Weather - 2026-10-22 - Evening - Partly Cloudy
46°F 8°C
Partly Cloudy
Crisp with a high near 55°F 13°C, overcast in the morning, cloudy in the afternoon, and partly cloudy this evening, with increasing humidity and barometric pressure rising.

Friday, October 23, 2026

Mid-Morning
Whatcom County Weather - 2026-10-23 - Morning - Partly Cloudy
45°F 7°C
Partly Cloudy
Mid-Afternoon
Whatcom County Weather - 2026-10-23 - Afternoon - Overcast
56°F 14°C
Overcast
Early-Evening
Whatcom County Weather - 2026-10-23 - Evening - Sunny
47°F 9°C
Sunny
Brisk around 56°F 14°C, cloudy in the morning, overcast in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure.

Saturday, October 24, 2026

Mid-Morning
Whatcom County Weather - 2026-10-24 - Morning - Overcast
48°F 9°C
Overcast
Mid-Afternoon
Whatcom County Weather - 2026-10-24 - Afternoon - Overcast
58°F 15°C
Overcast
Early-Evening
Whatcom County Weather - 2026-10-24 - Evening - Cloudy
51°F 10°C
Cloudy
Mildly cool near 58°F 15°C, partly cloudy in the morning, overcast in the afternoon, and cloudy this evening, with steady humidity and steady pressure.

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Weather by the Numbers

Sun, 11th
Whatcom County WA Weather - Sunday, Oct 11, 2026 - Sunny
Hi: 56°F 14°C
Lo: 35°F 1°C
Sunrise 07:23 AM
Sunset 06:25 PM
Wind N 6 mph10 km/h
Dew Point 30°F-1°C
uv Index 3
Barometric Pressure 29.97 in1015 mb
POP 1% *
Humidity 40%
Mon, 12th
Whatcom County WA Weather - Monday, Oct 12, 2026 - Sunny
Hi: 55°F 13°C
Lo: 35°F 2°C
Sunrise 07:24 AM
Sunset 06:23 PM
Wind WNW 4 mph7 km/h
Dew Point 33°F1°C
uv Index 3
Barometric Pressure 30.03 in1017 mb
POP 2% *
Humidity 47%
Tue, 13th
Whatcom County WA Weather - Tuesday, Oct 13, 2026 - Partly Cloudy
Hi: 57°F 14°C
Lo: 39°F 4°C
Sunrise 07:26 AM
Sunset 06:21 PM
Wind WNW 4 mph6 km/h
Dew Point 34°F1°C
uv Index 4
Barometric Pressure 30.15 in1021 mb
POP 5% *
Humidity 43%
Wed, 14th
Whatcom County WA Weather - Wednesday, Oct 14, 2026 - Light Rain
Hi: 52°F 11°C
Lo: 46°F 8°C
Sunrise 07:27 AM
Sunset 06:19 PM
Wind SSW 2 mph3 km/h
Dew Point 50°F10°C
uv Index 3
Barometric Pressure 30.27 in1025 mb
POP 78% *
Humidity 96%
Thu, 15th
Whatcom County WA Weather - Thursday, Oct 15, 2026 - Partly Cloudy
Hi: 66°F 19°C
Lo: 44°F 6°C
Sunrise 07:29 AM
Sunset 06:17 PM
Wind NNE 4 mph7 km/h
Dew Point 47°F8°C
uv Index 5
Barometric Pressure 30.39 in1029 mb
POP 7% *
Humidity 59%
Fri, 16th
Whatcom County WA Weather - Friday, Oct 16, 2026 - Overcast
Hi: 69°F 21°C
Lo: 49°F 9°C
Sunrise 07:30 AM
Sunset 06:15 PM
Wind SE 3 mph4 km/h
Dew Point 41°F5°C
uv Index 4
Barometric Pressure 30.24 in1024 mb
POP 10% *
Humidity 40%
Sat, 17th
Whatcom County WA Weather - Saturday, Oct 17, 2026 - Partly Cloudy
Hi: 62°F 17°C
Lo: 47°F 8°C
Sunrise 07:32 AM
Sunset 06:14 PM
Wind W 4 mph7 km/h
Dew Point 43°F6°C
uv Index 5
Barometric Pressure 30.06 in1018 mb
POP 5% *
Humidity 50%
Sun, 18th
Whatcom County WA Weather - Sunday, Oct 18, 2026 - Patchy Rain Nearby
Hi: 54°F 12°C
Lo: 45°F 7°C
Sunrise 07:33 AM
Sunset 06:12 PM
Wind WNW 3 mph5 km/h
Dew Point 50°F10°C
uv Index 3
Barometric Pressure 30.09 in1019 mb
POP 47% *
Humidity 89%
Mon, 19th
Whatcom County WA Weather - Monday, Oct 19, 2026 - Light Rain Shower
Hi: 49°F 10°C
Lo: 40°F 5°C
Sunrise 07:35 AM
Sunset 06:10 PM
Wind SSW 9 mph14 km/h
Dew Point 45°F7°C
uv Index 2
Barometric Pressure 30.15 in1021 mb
POP 65% *
Humidity 89%
Tue, 20th
Whatcom County WA Weather - Tuesday, Oct 20, 2026 - Light Drizzle
Hi: 46°F 8°C
Lo: 42°F 6°C
Sunrise 07:37 AM
Sunset 06:08 PM
Wind S 3 mph4 km/h
Dew Point 43°F6°C
uv Index 2
Barometric Pressure 30.15 in1021 mb
POP 48% *
Humidity 92%
Wed, 21st
Whatcom County WA Weather - Wednesday, Oct 21, 2026 - Sunny
Hi: 56°F 13°C
Lo: 35°F 2°C
Sunrise 07:38 AM
Sunset 06:06 PM
Wind NE 6 mph9 km/h
Dew Point 38°F3°C
uv Index 4
Barometric Pressure 30.06 in1018 mb
POP 8% *
Humidity 61%
Thu, 22nd
Whatcom County WA Weather - Thursday, Oct 22, 2026 - Overcast
Hi: 56°F 13°C
Lo: 41°F 5°C
Sunrise 07:40 AM
Sunset 06:04 PM
Wind WNW 2 mph4 km/h
Dew Point 38°F3°C
uv Index 3
Barometric Pressure 29.94 in1014 mb
POP 13% *
Humidity 54%
Fri, 23rd
Whatcom County WA Weather - Friday, Oct 23, 2026 - Cloudy
Hi: 58°F 15°C
Lo: 40°F 5°C
Sunrise 07:41 AM
Sunset 06:02 PM
Wind NNW 2 mph4 km/h
Dew Point 39°F4°C
uv Index 3
Barometric Pressure 30.27 in1025 mb
POP 5% *
Humidity 53%
Sat, 24th
Whatcom County WA Weather - Saturday, Oct 24, 2026 - Overcast
Hi: 61°F 16°C
Lo: 43°F 6°C
Sunrise 07:43 AM
Sunset 06:01 PM
Wind SE 4 mph6 km/h
Dew Point 40°F5°C
uv Index 3
Barometric Pressure 30.3 in1026 mb
POP 12% *
Humidity 51%
* POP = Probability of Precipitation. Data for 12:00 PM.