Hagg Lake

Hagg Lake

Gaston, Washington County, OR
2mi²
89.00ft
Directions
Lake Information

Hagg Lake is located in Washington County, Oregon. Henry Hagg Lake was formed by the construction of Scoggins Dam which is a major facility of the Tualatin Project. Scoggins Park/Henry Hagg Lake has many developed facilities for day use. Park is open from sunrise to sunset seven days a week. The facilities open in late April-on the first day of fishing season-and close in late October. Overnight camping not permitted. Available species include rainbow trout, large and smallmouth bass, brown bullhead, and yellow perch. Fishing season runs from late April through October. The Park features numerous picnic areas, two boat launching facilities, a fully-stocked lake for fishing, 15-plus miles of hiking trails, observation decks for wildlife-and bird-watching and extensive facilies for disabled visitors.

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Current Conditions

78°F°
Feels like 81°F°
Clear
Today's High
66°F°
Today's Low
47°F°

Water Temperature

59°F
Updated: (May 1)
Sign in to contribute temps.

Current water temperature for Hagg Lake is 59°F.

Current Snapshot

Wind3 mph ESE (Gust 7 mph)
Pressure
29.87 inHg
Visibility31 mi
Humidity30%
Cloud Cover9%

Forecast: Friday, May 2

Day 1 of 9

Hourly Insights

7 AM
49°F°
10 AM
60°F°
1 PM
66°F°
4 PM
64°F°

Temperature

High
66°F°
Low
47°F°

Precipitation

Chance0%
Amount0.00"
Typeclear

Wind

4mph
Avg Speed
Gusts up to
19mph
CalmModerateStrong
Max Speed9 mph

Sun, Moon & UV

Sunrise12:58 PM
Sunset3:21 AM
Moon PhasewaxingCrescent
Max UV Index7 (High)

Solunar Fishing Forecast

Action Rating
3/5

Todays action is rated a 3 (scale is 0 thru 5, 5 is the best)

Major Times (Best)

12:46 AM - 3:16 AM

7:40 AM - 10:10 AM

Minor Times (Good)

4:25 PM - 5:55 PM

8:14 AM - 9:44 AM

Outlook for Friday at Hagg Lake

Expect temperatures ranging from 47°F to 66°F. Skies look mostly clear with little chance of precipitation. Winds will be averaging 4 mph, with potential gusts reaching up to 19 mph. The maximum UV index will be 7 (High), so plan sun protection accordingly. For anglers, today's fishing action is rated 3/5 (Todays action is rated a 3 (scale is 0 thru 5, 5 is the best)). Look for the best bite times during the major periods around 12:46 AM and 7:40 AM, or try the minor windows near 4:25 PM and 8:14 AM for potential early morning or evening action. Check back for the latest conditions and forecasts for Hagg Lake.

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May 1st 2025

Lake Information

Elevation
89 ft
Area
2 mi²
Coordinates
45.482, -123.211

Weather Forecast

Friday

66°F
47°F

Saturday

57°F
42°F

Sunday

62°F
38°F

Monday

72°F
43°F

Tuesday

78°F
48°F

Wednesday

64°F
49°F

Thursday

65°F
40°F

Friday

73°F
43°F

Saturday

70°F
49°F
Friday - 5/2/2025
66°F
47°F
12am
57°F
59°F
29.87 hPa
2 mph
W
G: 5 mph
2am
53°F
59°F
29.89 hPa
1 mph
WSW
G: 3 mph
4am
48°F
59°F
29.91 hPa
1 mph
SW
G: 3 mph
6am
47°F
59°F
29.93 hPa
1 mph
W
G: 3 mph
8am
53°F
59°F
29.95 hPa
2 mph
SSW
G: 5 mph
10am
60°F
59°F
29.95 hPa
2 mph
SSE
G: 5 mph
12pm
65°F
59°F
29.94 hPa
4 mph
SSW
G: 9 mph
2pm
66°F
59°F
29.94 hPa
8 mph
WSW
G: 14 mph
4pm
64°F
59°F
29.96 hPa
9 mph
W
G: 19 mph
6pm
61°F
59°F
29.96 hPa
8 mph
W
G: 18 mph
8pm
56°F
59°F
29.98 hPa
5 mph
W
G: 12 mph
10pm
54°F
59°F
30.01 hPa
4 mph
WNW
G: 10 mph

Water Temperature History

Trends for Hagg Lake

Current Temp

Sign in to view

Latest recorded surface temperature.

Lowest in Period

38°F

On Jan 12

Coldest point in the Last 12 Months.

Average in Period

53°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 (77°F).
  • Coolest avg: January (41°F).
  • Rapid warming often occurs: June → July (+13°F).
  • Sharpest cooling trend: September → October (-13°F).

Weather Forecast

Wind speed and pressure trends

Hourly Wind Forecast

12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm05101520

Wind Direction

278°

Pressure

1012 mb

Cloud Cover

0%

Visibility

23 miles

Daily Pressure Forecast

FriSatSunMonTueWedThuFriSat0.008.8617.7226.5835.44
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Frequently Asked Questions About Hagg Lake

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