Riffe Lake

Riffe Lake

Morton, Lewis County, WA
18mi²
236.00ft
Directions
Lake Information

Riffe Lake is a 23.5 mi (38 km) long reservoir on the Cowlitz River in the U.S. state of Washington. Originally named Mossyrock Lake,[4] then later Davisson Lake, it was created in 1968 with the construction of Mossyrock Dam by Tacoma Power.[2] The lake was renamed in 1976 after the community of Riffe, which was inundated by the lake. The residents of Kosmos, Washington were also relocated as the lake's water level would submerge much of the town.

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Current Conditions

54°F°
Feels like 50°F°
MostlyCloudy
Today's High
57°F°
Today's Low
41°F°

Water Temperature

48°F
Updated: (Apr 21)
Sign in to contribute temps.

Current water temperature for Riffe Lake is 48°F.

Current Snapshot

Wind6 mph W (Gust 12 mph)
Pressure
30.25 inHg
Visibility15 mi
Humidity61%
Cloud Cover82%

Forecast: Tuesday, Apr 29

Day 1 of 9

Hourly Insights

7 AM
46°F°
28%
10 AM
48°F°
23%
1 PM
54°F°
4 PM
57°F°

Temperature

High
57°F°
Low
41°F°

Precipitation

Chance72%
Amount0.18"
Typerain

Wind

4mph
Avg Speed
Gusts up to
19mph
CalmModerateStrong
Max Speed8 mph

Sun, Moon & UV

Sunrise12:57 PM
Sunset3:16 AM
Moon PhasewaxingCrescent
Max UV Index5 (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)

1:13 PM - 2:43 PM

7:00 AM - 7:00 AM

Outlook for Tuesday at Riffe Lake

Expect temperatures ranging from 41°F to 57°F. There's a 72% chance of rain, potentially bringing around 0.18" rain. Winds will be averaging 4 mph, with potential gusts reaching up to 19 mph. The maximum UV index will be 5 (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 1:13 PM and 7:00 AM for potential early morning or evening action. Check back for the latest conditions and forecasts for Riffe Lake.

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April 29th 2025

Lake Information

Elevation
236 ft
Area
18 mi²
Coordinates
46.486, -122.187

Weather Forecast

Tuesday

57°F
41°F

Wednesday

61°F
37°F

Thursday

74°F
42°F

Friday

64°F
46°F

Saturday

51°F
41°F

Sunday

56°F
39°F

Monday

67°F
38°F

Tuesday

66°F
46°F

Wednesday

58°F
45°F
Tuesday - 4/29/2025
57°F
41°F
12am
47°F
48°F
30.24 hPa
2 mph
W
G: 8 mph
2am
46°F
48°F
30.22 hPa
2 mph
W
G: 7 mph
4am
46°F
48°F
30.20 hPa
2 mph
WSW
G: 9 mph
6am
45°F
48°F
30.21 hPa
3 mph
WSW
G: 11 mph
8am
46°F
48°F
30.21 hPa
3 mph
WNW
G: 12 mph
10am
48°F
48°F
30.22 hPa
5 mph
W
G: 13 mph
12pm
52°F
48°F
30.22 hPa
6 mph
W
G: 15 mph
2pm
55°F
48°F
30.20 hPa
6 mph
W
G: 16 mph
4pm
57°F
48°F
30.16 hPa
8 mph
W
G: 19 mph
6pm
53°F
48°F
30.17 hPa
7 mph
W
G: 18 mph
8pm
48°F
48°F
30.19 hPa
7 mph
W
G: 16 mph
10pm
43°F
48°F
30.22 hPa
4 mph
WSW
G: 9 mph

Water Temperature History

Trends for Riffe Lake

Current Temp

Sign in to view

Latest recorded surface temperature.

Lowest in Period

35°F

On Apr 1

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: June → July (+11°F).
  • Sharpest cooling trend: September → October (-10°F).

Weather Forecast

Wind speed and pressure trends

Hourly Wind Forecast

Wind Direction

273°

Pressure

1024 mb

Cloud Cover

98%

Visibility

11 miles

Daily Pressure Forecast

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Frequently Asked Questions About Riffe Lake

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