Union Valley Reservoir

Union Valley Reservoir

Placerville, CA

61°F
71°
6 mph72°/54°

Right Now

71°

Clear

Water

61°

Wind

6 mph

W

Gusts

11 mph

Pressure

29.83

falling

Forecast - Fri, May 22

7am
56°
10am
68°
1pm
72°
4pm
72°

High / Low

72° / 54°

Wind

5 mph

gusts 14 mph

Precip

0%

UV

8

Sunrise

12:43 PM

Sunset

3:13 AM

Today Read

Union Valley Reservoir

Wind read

Calm

5 mph avg

Water read

61°

Cool-water mix

Air range

54° / 72°

today

Precip

0%

low concern

Today's forecast for Union Valley Reservoir has calm wind, 54F to 72F air temperatures, 0% chance of precipitation, and 61F water.

AI lake plannerFishableChecking questions

Ask what to do at Union Valley Reservoir today.

The planner reads this page's water temp, forecast, fish species, solunar timing, reports, and imagery context so you can decide what to throw, when to go, and when to move.

Today's AI read

Active-water pattern for Rainbow trout / Brown trout

66 confidence

Active temps make wind edges, shallow cover, and feeding windows more important. Wind is not the main constraint, so timing and presentation can drive the plan. With a weak solunar score, favor stable weather windows.

Uses this lake data

Current water temp: 61°FWater temp history: 477 readingsHourly weather: 224 hoursSolunar timing: 2/5Fish species: 3 listedSatellite imagery: 602 captures

Trip read from the AI planner

Fishing Forecast

waxing crescent

2/5

Major

1:27 AM - 3:57 AM

Minor

6:26 PM - 7:56 PM

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May 17, 2026

Fish Species

3

Water Temperature History

Current

68°

May 31

Low

37°

Feb 23

Average

58°

Last 12 Months

Warmest avg: July (72°F)

Coolest avg: February (40°F)

Rapid warming: FebruaryMarch (+14°F)

Sharpest cooling: OctoberNovember (-16°F)

Weather Forecast

Wind speed, gusts, and pressure trends for trip timing.

Hourly Wind Forecast

22

12am - 11pm

Wind SpeedWind Gust
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Peak Wind

8 mph

1pm

Peak Gust

14 mph

highest gust

Pressure

29.83 inHg

steady

Visibility

22 mi

0% clouds

Tap chart for details, swipe left or right for different days.Tap chart for details • Swipe for different days

Daily Pressure Forecast

Pressure
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Nearby Lakes

FAQ

About Union Valley Reservoir

Union Valley Reservoir covers 2893.00 acres (4.52 square miles)

Union Valley Reservoir is located in Placerville, El Dorado County, CA. It is accessible to the public for outdoor activities.