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Whatcom County (North Cascades National Park)
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United States weather

10 day weather forecast for Whatcom County 🌳

Friday, October 2nd, 2026, at 10:14 PM
today
Patchy rain possible
20° 12°
tomorrow
Sunny
20° 6°
Sunday
Sunny
21° 7°
Monday
Overcast
17° 6°
Tuesday
Overcast
16° 5°
Wednesday
Overcast
17° 4°
Thursday
Sunny
20° 7°
 More Details See
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Whatcom County Weather Pages

Whatcom County weather forecast

The weather forecast for Whatcom County over the next 5 days indicates comfortable conditions with temperatures ranging from 16 °F to 21 °F.

Light rain is expected on Friday, accompanied by a gentle breeze.

Weather today
Whatcom County weather forecast

Whatcom County 14 days weather forecast

This weeks weather in Whatcom County. Click on a date for detailed forecasts
Fri. 2
20°
12°
Patchy rain possible
1 mm
Sat. 3
20°
6°
Sunny
0 mm
Sun. 4
21°
7°
Sunny
0 mm
Mon. 5
17°
6°
Overcast
0.1 mm
Tue. 6
16°
5°
Overcast
0 mm
Wed. 7
17°
4°
Overcast
0 mm
Thu. 8
20°
7°
Sunny
0 mm
Fri. 9
15°
6°
Partly cloudy
0 mm
Sat. 10
9°
0°
Patchy rain possible
1.4 mm
Sun. 11
11°
-2°
Sunny
2.3 mm
Mon. 12
4°
-3°
Patchy rain possible
7.4 mm
Tue. 13
4°
-5°
Freezing fog
9.7 mm
Wed. 14
1°
-5°
Light drizzle
11 mm
Thu. 15
7°
-5°
Sunny
0 mm
Further Ahead
Select a date

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Access Whatcom County weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
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Whatcom County long range weather forecast

30 day weather forecast for Whatcom County
September
November
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Light rain
13°
2
Patchy rain possible
20°
3
Sunny
20°
4
Sunny
21°
5
Overcast
17°
6
Overcast
16°
7
Overcast
17°
8
Sunny
20°
9
Partly cloudy
15°
10
Patchy rain possible
9°
11
Sunny
11°
12
Patchy rain possible
4°
13
Freezing fog
4°
14
Light drizzle
1°
15
Sunny
7°
16
Overcast
11°
17
Light rain
2°
18
Moderate rain at times
3°
19
Moderate or heavy rain with thunder
2°
20
Fog
1°
21
Fog
7°
22
Overcast
9°
23
Fog
4°
24
Moderate or heavy rain shower
4°
25
Patchy moderate snow
1°
26
Moderate rain
0°
27
Heavy snow
0°
28
Patchy moderate snow
0°
29
Moderate rain
0°
30
Overcast
5°
31
Heavy rain at times
12°
Important Notice
Our Whatcom County long range weather forecast is based on historical data analysis rather than real-time forecasting models. While this provides a general outlook, weather conditions can change. We recommend checking the forecast closer to your planned date for the most current information.

Rain Forecast for the Next 14 Days in Whatcom County

The chart displays the expected rainfall values (in mm) over the next 14 days in Whatcom County, highlighting variations in precipitation levels for specific dates. ☔

Whatcom County Wind Speed Forecast Chart

This chart illustrates the projected daily max wind speed (in km) in Whatcom County over the next two weeks, providing insights into periods of increased or decreased wind activity. 🌀

Frequently asked questions about the weather in Whatcom County

How warm is it in Whatcom County over the next 14 days?
Over the next two weeks, temperatures in Whatcom County are expected to range from around -5 °F on the coldest nights up to about 21 °F on the warmest days. Use this range to plan what to pack and wear.

Will it rain in Whatcom County in the next two weeks?
Yes - rain is expected on about 8 of the next 14 days in Whatcom County, with roughly 32.8 mm of rainfall in total. It is worth keeping an umbrella or raincoat handy.

How windy is it in Whatcom County?
Maximum wind speeds in Whatcom County are forecast to reach about 11 km/h at their peak over the next 14 days.

When is the best time to visit Whatcom County?
For a month-by-month look at temperatures and rainfall, see our best time to visit Whatcom County guide.

How accurate is the 14-day forecast for Whatcom County?
Our Whatcom County forecast uses leading meteorological models and is most reliable over the next few days. Long-range days beyond a week show general trends and can change, so check back closer to the date for updates.

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North Cascades National Park
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Location coordinates Where is Whatcom County?

Get accurate weather forecasts for Whatcom County, located at latitude 48.833 and longitude -121.347. Stay updated with localized weather information tailored for Whatcom County.

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