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

50°F°
Feels like 52°F°
Drizzle
Today's High
56°F°
Today's Low
45°F°

Water Temperature

49°F
Updated: (Apr 26)
Sign in to contribute temps.

Current water temperature for Lake Whatcom is 49°F.

Current Snapshot

Wind3 mph S (Gust 8 mph)
Pressure
30.25 inHg
Visibility8 mi
Humidity90%
Cloud Cover42%

Forecast: Tuesday, Apr 29

Day 1 of 9

Hourly Insights

7 AM
47°F°
16%
10 AM
50°F°
7%
1 PM
55°F°
4 PM
55°F°

Temperature

High
56°F°
Low
45°F°

Precipitation

Chance64%
Amount0.10"
Typerain

Wind

4mph
Avg Speed
Gusts up to
15mph
CalmModerateStrong
Max Speed7 mph

Sun, Moon & UV

Sunrise12:51 PM
Sunset3:22 AM
Moon PhasewaxingCrescent
Max UV Index4 (Moderate)

Solunar Fishing Forecast

Action Rating
4/5

Todays action is rated a 4 (scale is 0 thru 5, 5 is the best)

Major Times (Best)

9:35 PM - 12:05 AM

7:00 AM - 7:00 AM

Minor Times (Good)

1:02 PM - 2:32 PM

7:00 AM - 7:00 AM

Outlook for Tuesday at Lake Whatcom

Expect temperatures ranging from 45°F to 56°F. There's a 64% chance of rain, potentially bringing around 0.10" rain. Winds will be averaging 4 mph, with potential gusts reaching up to 15 mph. The maximum UV index will be 4 (Moderate), so plan sun protection accordingly. For anglers, today's fishing action is rated 4/5 (Todays action is rated a 4 (scale is 0 thru 5, 5 is the best)). Look for the best bite times during the major periods around 9:35 PM and 7:00 AM, or try the minor windows near 1:02 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

Tuesday

56°F
45°F

Wednesday

60°F
43°F

Thursday

71°F
44°F

Friday

67°F
50°F

Saturday

55°F
44°F

Sunday

59°F
41°F

Monday

65°F
42°F

Tuesday

61°F
49°F

Wednesday

57°F
47°F
Tuesday - 4/29/2025
56°F
45°F
12am
48°F
49°F
30.20 hPa
4 mph
SSE
G: 11 mph
2am
47°F
49°F
30.17 hPa
4 mph
SSE
G: 14 mph
4am
47°F
49°F
30.16 hPa
3 mph
SSE
G: 10 mph
6am
47°F
49°F
30.16 hPa
3 mph
SSE
G: 8 mph
8am
48°F
49°F
30.16 hPa
2 mph
SSE
G: 7 mph
10am
50°F
49°F
30.17 hPa
3 mph
SSE
G: 6 mph
12pm
54°F
49°F
30.17 hPa
4 mph
SSW
G: 10 mph
2pm
56°F
49°F
30.17 hPa
4 mph
S
G: 8 mph
4pm
55°F
49°F
30.16 hPa
4 mph
SSW
G: 9 mph
6pm
53°F
49°F
30.17 hPa
5 mph
S
G: 13 mph
8pm
50°F
49°F
30.17 hPa
6 mph
SSE
G: 12 mph
10pm
46°F
49°F
30.20 hPa
6 mph
SSE
G: 10 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

47°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: April (38°F).
  • Rapid warming often occurs: April → May (+13°F).
  • Sharpest cooling trend: September → October (-10°F).

Weather Forecast

Wind speed and pressure trends

Hourly Wind Forecast

12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm0481216

Wind Direction

161°

Pressure

1023 mb

Cloud Cover

99%

Visibility

8 miles

Daily Pressure Forecast

TueWedThuFriSatSunMonTueWed0.008.8617.7226.5835.44
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Frequently Asked Questions About Lake Whatcom

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