Kachess Lake

Kachess Lake

Kittitas County, WA
4377.80mi²
2260ft
Directions
Lake Information

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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Current Conditions

79°F
Feels like 75°F
Cloudy
Today's High
65°F
Today's Low
55°F

Water Temperature

66°F
Updated: (Jul 4)
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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

Wind10 mph WNW (Gust 21 mph)
Pressure
29.92 inHg
Visibility25 mi
Humidity34%
Cloud Cover99%

Forecast: Wednesday, Jul 9

Day 1 of 9

Hourly Insights

7 AM
58°
10 AM
63°
1 PM
64°
4 PM
64°
10%

Temperature

High
65°F
Low
55°F

Precipitation

Chance26%
Amount0.03"
Typerain

Wind

8 mph
Avg Speed
Gusts up to
28 mph
CalmModerateStrong
Max Speed10 mph

Sun, Moon & UV

Sunrise12:19 PM
Sunset4:01 AM
Moon PhasewaxingGibbous
Max UV Index6 (High)

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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July 3rd 2025

Weather Forecast

Wednesday

65°F
55°F

Thursday

65°F
51°F

Friday

76°F
50°F

Saturday

76°F
54°F

Sunday

77°F
57°F

Monday

80°F
56°F

Tuesday

84°F
57°F

Wednesday

87°F
56°F

Thursday

82°F
61°F
Wednesday - 7/9/2025
65°F
55°F
12am
61°F
66°F
30.01 hPa
6 mph
WNW
G: 14 mph
2am
58°F
66°F
30.01 hPa
6 mph
WNW
G: 16 mph
4am
56°F
66°F
30.01 hPa
5 mph
W
G: 13 mph
6am
56°F
66°F
30.02 hPa
6 mph
WNW
G: 14 mph
8am
60°F
66°F
30.05 hPa
8 mph
WNW
G: 19 mph
10am
63°F
66°F
30.06 hPa
9 mph
WNW
G: 20 mph
12pm
64°F
66°F
30.08 hPa
9 mph
WNW
G: 21 mph
2pm
65°F
66°F
30.09 hPa
10 mph
WNW
G: 22 mph
4pm
64°F
66°F
30.09 hPa
9 mph
WNW
G: 22 mph
6pm
62°F
66°F
30.08 hPa
10 mph
WNW
G: 28 mph
8pm
58°F
66°F
30.08 hPa
10 mph
WNW
G: 27 mph
10pm
56°F
66°F
30.09 hPa
9 mph
WNW
G: 25 mph

Water Temperature History

Trends for Kachess Lake

Current Temp

62°F

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

12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm07142128

Wind Direction

287°

Pressure

1016 mb

Cloud Cover

3%

Visibility

23 miles

Daily Pressure Forecast

WedThuFriSatSunMonTueWedThu0.008.8617.7226.5835.44
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Frequently Asked Questions About Kachess Lake

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