
Kachess Lake
Kachess Lake is a lake and reservoir along the course of the Kachess River in Washington state, US. The upper part of the lake, north of a narrows, is called Little Kachess Lake. The Kachess River flows into the lake from the north, and out from the south. Kachess Lake is the middle of the three large lakes which straddle Interstate 90 north of the Yakima River in the Cascade Range. The other two are Cle Elum Lake, the easternmost which is also north of I-90 and Keechelus Lake, the westernmost, which is south of I-90.
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Kachess Lake
Kachess Lake is a lake and reservoir along the course of the Kachess River in Washington state, US. The upper part of the lake, north of a narrows, is called Little Kachess Lake. The Kachess River flows into the lake from the north, and out from the south. Kachess Lake is the middle of the three large lakes which straddle Interstate 90 north of the Yakima River in the Cascade Range. The other two are Cle Elum Lake, the easternmost which is also north of I-90 and Keechelus Lake, the westernmost, which is south of I-90.
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Water Temperature
Latest Water Temperature Data: Current water temperature for Kachess Lake is 66° Fahrenheit - providing real-time thermal conditions for fishing, swimming, and water recreation planning.
Current Snapshot
Forecast: Wednesday, Jul 9
MostlyCloudy
Hourly Insights
Temperature
Precipitation
Wind
Sun, Moon & UV
Weather Forecast & Fishing Conditions at Kachess Lake
Today's weather at Kachess Lake features partly cloudy skies with temperatures ranging from 55°F to 65°F. Wind conditions will average 8 mph with gusts reaching up to 28 mph, creating excellent fishing conditions with calm waters. The UV index will reach 6 (High), and there's a 26% chance of precipitation. The current water temperature is 66°F (updated Jul 4), 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
2:28 PM - 4:58 PM
Minor Times (Good)
3:27 AM - 4:57 AM
10:03 AM - 11:33 AM
Fishing Intelligence
Today's fishing action at Kachess 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 2:28 PM.
Water Temp Impact: With the water at 66°F, expect good activity from warm-water species like bass and panfish.
Common Fish Species
Nearby Lakes
Water Temperature History
Trends for Kachess Lake
Current Temp
Measured on Jun 30
Latest recorded surface temperature.
Lowest in Period
33°F
On Jan 1
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 (72°F).
- Coolest avg: April (36°F).
- Rapid warming often occurs: May → June (+14°F).
- Sharpest cooling trend: September → October (-13°F).
Weather Forecast
Wind speed and pressure trends
Hourly Wind Forecast
Wind Direction
287°
Pressure
1016 mb
Cloud Cover
3%
Visibility
23 miles
Daily Pressure Forecast


Frequently Asked Questions About Kachess Lake
Get accurate, up-to-date information about conditions at Kachess Lake.