
Rock Lake
Rock Lake is a notable natural feature located in Eastern Washington and holds a unique distinction for being the deepest and largest among all scabland lakes formed as a result of the Missoula Floods. The lake spans an area of 2,189 acres and has a maximum depth of over 360 feet, although the official measurement remains uncertain. The origin of Rock Lake can be traced back to the Missoula Floods, which occurred during the last ice age. The floods were caused by the periodic rupturing of the ice dam that blocked the Clark Fork River in western Montana, leading to catastrophic floods that swept across the region. As a result of these floods, numerous scabland lakes were formed across the eastern parts of Washington, with Rock Lake being the deepest and largest among them. Despite its uncertain depth measurement, Rock Lake is renowned for its unique geological features and diverse aquatic life. The lake's depth and size have created an ideal habitat for a wide range of fish species, including trout, bass, and catfish. The lake's surrounding landscape is also rich in diverse flora and fauna, providing ample opportunities for nature enthusiasts to explore and observe the local ecosystem. The scenic beauty of Rock Lake and its surrounding area has also made it a popular destination for outdoor recreational activities such as fishing, boating, hiking, and camping. Visitors can enjoy fishing for the lake's abundant fish species, boating in its calm waters, or exploring the numerous trails and campsites located in the surrounding area. Overall, Rock Lake is a unique natural wonder that has played a significant role in the geological and ecological history of the region. Its deep waters, diverse aquatic life, and stunning surroundings make it a must-visit destination for nature enthusiasts and outdoor adventurers.
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Rock Lake
Rock Lake is a notable natural feature located in Eastern Washington and holds a unique distinction for being the deepest and largest among all scabland lakes formed as a result of the Missoula Floods. The lake spans an area of 2,189 acres and has a maximum depth of over 360 feet, although the official measurement remains uncertain. The origin of Rock Lake can be traced back to the Missoula Floods, which occurred during the last ice age. The floods were caused by the periodic rupturing of the ice dam that blocked the Clark Fork River in western Montana, leading to catastrophic floods that swept across the region. As a result of these floods, numerous scabland lakes were formed across the eastern parts of Washington, with Rock Lake being the deepest and largest among them. Despite its uncertain depth measurement, Rock Lake is renowned for its unique geological features and diverse aquatic life. The lake's depth and size have created an ideal habitat for a wide range of fish species, including trout, bass, and catfish. The lake's surrounding landscape is also rich in diverse flora and fauna, providing ample opportunities for nature enthusiasts to explore and observe the local ecosystem. The scenic beauty of Rock Lake and its surrounding area has also made it a popular destination for outdoor recreational activities such as fishing, boating, hiking, and camping. Visitors can enjoy fishing for the lake's abundant fish species, boating in its calm waters, or exploring the numerous trails and campsites located in the surrounding area. Overall, Rock Lake is a unique natural wonder that has played a significant role in the geological and ecological history of the region. Its deep waters, diverse aquatic life, and stunning surroundings make it a must-visit destination for nature enthusiasts and outdoor adventurers.
Read more detailsCurrent Conditions
Water Temperature
Latest Water Temperature Data: Current water temperature for Rock Lake is 69° Fahrenheit - providing real-time thermal conditions for fishing, swimming, and water recreation planning.
Current Snapshot
Forecast: Tuesday, Jul 8
Clear
Hourly Insights
Temperature
Precipitation
Wind
Sun, Moon & UV
Weather Forecast & Fishing Conditions at Rock Lake
Today's weather at Rock Lake features partly cloudy skies with temperatures ranging from 58°F to 96°F. Wind conditions will average 7 mph with gusts reaching up to 20 mph, creating excellent fishing conditions with calm waters. The UV index will reach 9 (Very High), and there's a 0% chance of precipitation. The current water temperature is 69°F (updated Jul 5), indicating that excellent conditions for bass and trout fishing. These conditions will significantly impact fish behavior and angling success throughout the day.
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Solunar Fishing Forecast
Todays action is rated a 3 (scale is 0 thru 5, 5 is the best)
Best Bite Times
Major Times (Peak)
7:00 AM - 7:00 AM
1:48 PM - 4:18 PM
Minor Times (Good)
2:21 AM - 3:51 AM
9:00 AM - 10:30 AM
Fishing Intelligence
Today's fishing action at Rock Lake is rated 3/5 (Todays action is rated a 3 (scale is 0 thru 5, 5 is the best)). For the best results, target the major bite times around 7:00 AM and 1:48 PM.
Water Temp Impact: With the water at 69°F, expect good activity from warm-water species like bass and panfish.
Common Fish Species
Nearby Lakes
Water Temperature History
Trends for Rock Lake
Current Temp
Measured on Jul 2
Latest recorded surface temperature.
Lowest in Period
37°F
On Jan 19
Coldest point in the Last 12 Months.
Average in Period
52°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 (76°F).
- Coolest avg: January (39°F).
- Rapid warming often occurs: April → May (+14°F).
- Sharpest cooling trend: September → October (-13°F).
Weather Forecast
Wind speed and pressure trends
Hourly Wind Forecast
Wind Direction
23°
Pressure
1011 mb
Cloud Cover
0%
Visibility
24 miles
Daily Pressure Forecast


Frequently Asked Questions About Rock Lake
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