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

67°F°
Feels like 69°F°
MostlyClear
Today's High
71°F°
Today's Low
41°F°

Water Temperature

59°F
Updated: (May 8)
Sign in to contribute temps.

Current water temperature for Hagg Lake is 59°F.

Current Snapshot

Wind4 mph N (Gust 9 mph)
Pressure
30.17 inHg
Visibility30 mi
Humidity28%
Cloud Cover32%

Forecast: Friday, May 9

Day 1 of 9

Hourly Insights

7 AM
44°F°
10 AM
59°F°
1 PM
68°F°
4 PM
71°F°

Temperature

High
71°F°
Low
41°F°

Precipitation

Chance0%
Amount0.00"
Typeclear

Wind

2mph
Avg Speed
Gusts up to
9mph
CalmModerateStrong
Max Speed5 mph

Sun, Moon & UV

Sunrise12:49 PM
Sunset3:30 AM
Moon PhasewaxingGibbous
Max UV Index5 (Moderate)

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)

7:00 AM - 7:00 AM

12:59 PM - 3:29 PM

Minor Times (Good)

12:25 AM - 1:55 AM

10:53 AM - 12:23 PM

Outlook for Friday at Hagg Lake

Expect temperatures ranging from 41°F to 71°F. Skies look partly cloudy with little chance of precipitation. Winds will be averaging 2 mph, with potential gusts reaching up to 9 mph. The maximum UV index will be 5 (Moderate), 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 7:00 AM and 12:59 PM, or try the minor windows near 12:25 AM and 10:53 AM for potential early morning or evening action. Check back for the latest conditions and forecasts for Hagg Lake.

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May 8th 2025

Lake Information

Elevation
89 ft
Area
2 mi²
Coordinates
45.482, -123.211

Weather Forecast

Friday

71°F
41°F

Saturday

62°F
45°F

Sunday

56°F
46°F

Monday

58°F
46°F

Tuesday

61°F
45°F

Wednesday

61°F
46°F

Thursday

64°F
45°F

Friday

56°F
47°F

Saturday

59°F
48°F
Friday - 5/9/2025
71°F
41°F
12am
49°F
59°F
30.19 hPa
3 mph
NNW
G: 5 mph
2am
46°F
59°F
30.18 hPa
2 mph
NW
G: 4 mph
4am
43°F
59°F
30.17 hPa
1 mph
NNW
G: 2 mph
6am
41°F
59°F
30.17 hPa
2 mph
NNW
G: 4 mph
8am
46°F
59°F
30.18 hPa
0 mph
N
G: 2 mph
10am
59°F
59°F
30.16 hPa
2 mph
ENE
G: 4 mph
12pm
65°F
59°F
30.15 hPa
2 mph
ESE
G: 7 mph
2pm
69°F
59°F
30.10 hPa
2 mph
SE
G: 7 mph
4pm
71°F
59°F
30.08 hPa
2 mph
SSE
G: 7 mph
6pm
69°F
59°F
30.05 hPa
4 mph
W
G: 7 mph
8pm
63°F
59°F
30.05 hPa
5 mph
NW
G: 9 mph
10pm
56°F
59°F
30.07 hPa
4 mph
NW
G: 8 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: April → May (+13°F).
  • Sharpest cooling trend: September → October (-13°F).

Weather Forecast

Wind speed and pressure trends

Hourly Wind Forecast

12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm036912

Wind Direction

333°

Pressure

1022 mb

Cloud Cover

22%

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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