Lake Whatcom

Lake Whatcom

Bellingham, Whatcom County, WA
8mi²
94.00ft
Directions
Lake Information

Lake Whatcom (from the Lummi word for "loud water") is located in Whatcom County, Washington, United States. It is the drinking water source for approximately 85,000 residents in the city of Bellingham as well as Whatcom County. It is approximately 10 miles (16 km) in length and 1 mile (1.6 km) in width at its widest. Lake Whatcom is located and managed within three political jurisdictions: the city of Bellingham, Whatcom County, and the Lake Whatcom Water and Sewer District. The lake is a popular area for motor boating, swimming, fishing, and other recreational activities.

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Current Conditions

54°F°
Feels like 53°F°
MostlyCloudy
Today's High
60°F°
Today's Low
42°F°

Water Temperature

42°F
Updated: (Apr 28)
Sign in to contribute temps.

Current water temperature for Lake Whatcom is 42°F.

Current Snapshot

Wind4 mph SSE (Gust 8 mph)
Pressure
30.17 inHg
Visibility14 mi
Humidity72%
Cloud Cover81%

Forecast: Wednesday, Apr 30

Day 1 of 9

Hourly Insights

7 AM
43°F°
10 AM
52°F°
1 PM
58°F°
4 PM
60°F°

Temperature

High
60°F°
Low
42°F°

Precipitation

Chance0%
Amount0.00"
Typeclear

Wind

4mph
Avg Speed
Gusts up to
11mph
CalmModerateStrong
Max Speed5 mph

Sun, Moon & UV

Sunrise12:50 PM
Sunset3:23 AM
Moon PhasewaxingCrescent
Max UV Index5 (Moderate)

Solunar Fishing Forecast

Action Rating
2/5

Todays action is rated a 2 (scale is 0 thru 5, 5 is the best)

Major Times (Best)

10:40 PM - 1:10 AM

7:00 AM - 7:00 AM

Minor Times (Good)

1:48 PM - 3:18 PM

7:00 AM - 7:00 AM

Outlook for Wednesday at Lake Whatcom

Expect temperatures ranging from 42°F to 60°F. Skies look partly cloudy with little chance of precipitation. Winds will be averaging 4 mph, with potential gusts reaching up to 11 mph. The maximum UV index will be 5 (Moderate), so plan sun protection accordingly. For anglers, today's fishing action is rated 2/5 (Todays action is rated a 2 (scale is 0 thru 5, 5 is the best)). Look for the best bite times during the major periods around 10:40 PM and 7:00 AM, or try the minor windows near 1:48 PM and 7:00 AM for potential early morning or evening action. Check back for the latest conditions and forecasts for Lake Whatcom.

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April 29th 2025

Lake Information

Elevation
94 ft
Area
8 mi²
Coordinates
48.726, -122.311

Weather Forecast

Wednesday

60°F
42°F

Thursday

71°F
44°F

Friday

68°F
50°F

Saturday

55°F
45°F

Sunday

59°F
43°F

Monday

66°F
43°F

Tuesday

70°F
49°F

Wednesday

63°F
50°F

Thursday

60°F
48°F
Wednesday - 4/30/2025
60°F
42°F
12am
44°F
42°F
30.21 hPa
3 mph
SSE
G: 8 mph
2am
44°F
42°F
30.23 hPa
3 mph
SE
G: 10 mph
4am
42°F
42°F
30.21 hPa
5 mph
SE
G: 11 mph
6am
42°F
42°F
30.23 hPa
5 mph
SE
G: 8 mph
8am
46°F
42°F
30.24 hPa
2 mph
SSE
G: 4 mph
10am
52°F
42°F
30.24 hPa
3 mph
W
G: 6 mph
12pm
56°F
42°F
30.21 hPa
5 mph
WNW
G: 9 mph
2pm
59°F
42°F
30.18 hPa
5 mph
WNW
G: 10 mph
4pm
60°F
42°F
30.16 hPa
5 mph
WNW
G: 9 mph
6pm
60°F
42°F
30.13 hPa
4 mph
WNW
G: 7 mph
8pm
54°F
42°F
30.13 hPa
2 mph
WNW
G: 4 mph
10pm
50°F
42°F
30.14 hPa
2 mph
E
G: 3 mph

Water Temperature History

Trends for Lake Whatcom

Current Temp

Sign in to view

Latest recorded surface temperature.

Lowest in Period

32°F

On Apr 6

Coldest point in the Last 12 Months.

Average in Period

48°F

Typical temp during the Last 12 Months.

Temperature Trend: Last 12 Months

Surface temperature over the selected period.

Key Observations (Last 12 Months)

  • Warmest avg: July (70°F).
  • Coolest avg: February (38°F).
  • Rapid warming often occurs: April → May (+11°F).
  • Sharpest cooling trend: September → October (-10°F).

Weather Forecast

Wind speed and pressure trends

Hourly Wind Forecast

12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm036912

Wind Direction

149°

Pressure

1023 mb

Cloud Cover

61%

Visibility

15 miles

Daily Pressure Forecast

WedThuFriSatSunMonTueWedThu0.008.8617.7226.5835.44
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Frequently Asked Questions About Lake Whatcom

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