Groundhog Reservoir

Groundhog Reservoir

Dolores, Dolores County, CO
1mi²
ft
Directions
Lake Information

In the rugged wilderness of Dolores County, Colorado, there lies a shimmering jewel of a lake known as Groundhog Reservoir. This pristine body of water spans an impressive 606 acres and is a mecca for anglers seeking a thrilling cold-water fishing experience. As you gaze out over the crystal-clear waters of Groundhog Reservoir, you'll feel a sense of awe at the raw natural beauty that surrounds you. The snow-capped peaks of the nearby mountains stand sentinel over the lake, their rugged contours etched against the bright blue sky. But it's what lies beneath the surface of the water that truly captivates the imagination. Groundhog Reservoir is home to a wide variety of cold-water fish, including Rainbow Trout, Brook Trout, Brown Trout, and Kokanee Salmon. These elusive fish thrive in the chilly depths of the lake, their silver scales glinting in the sunlight as they dart to and fro. If you're a seasoned angler looking for a challenge, Groundhog Reservoir is the perfect place to test your skills. The fish in these waters are notoriously wily and can put up a fierce fight when hooked. But the thrill of reeling in a trophy-sized Rainbow Trout or Brown Trout is worth the effort. And even if you're not an experienced angler, you can still enjoy the serene beauty of Groundhog Reservoir. Rent a boat and spend the day cruising the tranquil waters, or pack a picnic and relax on the shores of the lake as you take in the stunning vistas. As the sun begins to set over the mountains, casting a warm orange glow across the sky, you'll feel a sense of peace and contentment wash over you. The world-famous Groundhog Reservoir may be a challenging place to fish, but it's also a place of unparalleled natural beauty and serenity, a true treasure of the Colorado wilderness.

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Current Conditions

43°F°
Feels like 42°F°
MostlyCloudy
Today's High
55°F°
Today's Low
31°F°

Water Temperature

49°F
Updated: (May 7)
Sign in to contribute temps.

Current water temperature for Groundhog Reservoir is 49°F.

Current Snapshot

Wind3 mph SSW (Gust 5 mph)
Pressure
30.01 inHg
Visibility15 mi
Humidity49%
Cloud Cover83%

Forecast: Thursday, May 8

Day 1 of 9

Hourly Insights

7 AM
32°F°
10 AM
45°F°
1 PM
52°F°
4 PM
55°F°

Temperature

High
55°F°
Low
31°F°

Precipitation

Chance4%
Amount0.00"
Typerain

Wind

6mph
Avg Speed
Gusts up to
19mph
CalmModerateStrong
Max Speed12 mph

Sun, Moon & UV

Sunrise12:09 PM
Sunset2:10 AM
Moon PhasewaxingGibbous
Max UV Index8 (Very High)

Solunar Fishing Forecast

Action Rating
2/5

Todays action is rated a 2 (scale is 0 thru 5, 5 is the best)

Major Times (Best)

6:00 AM - 6:00 AM

1:21 PM - 3:51 PM

Minor Times (Good)

10:15 PM - 11:45 PM

9:38 AM - 11:08 AM

Outlook for Thursday at Groundhog Reservoir

Expect temperatures ranging from 31°F to 55°F. Skies look partly cloudy with little chance of precipitation. Winds will be averaging 6 mph, with potential gusts reaching up to 19 mph. The maximum UV index will be 8 (Very High), so plan sun protection accordingly. For anglers, today's fishing action is rated 2/5 (Todays action is rated a 2 (scale is 0 thru 5, 5 is the best)). Look for the best bite times during the major periods around 6:00 AM and 1:21 PM, or try the minor windows near 10:15 PM and 9:38 AM for potential early morning or evening action. Check back for the latest conditions and forecasts for Groundhog Reservoir.

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May 7th 2025

Lake Information

Elevation
N/A
Area
1 mi²
Coordinates
37.792, -108.292

Weather Forecast

Thursday

55°F
31°F

Friday

60°F
38°F

Saturday

56°F
39°F

Sunday

61°F
41°F

Monday

62°F
44°F

Tuesday

58°F
35°F

Wednesday

44°F
28°F

Thursday

51°F
29°F

Friday

51°F
36°F
Thursday - 5/8/2025
55°F
31°F
12am
35°F
49°F
30.13 hPa
3 mph
E
G: 5 mph
2am
33°F
49°F
30.14 hPa
3 mph
ESE
G: 5 mph
4am
32°F
49°F
30.17 hPa
4 mph
ESE
G: 5 mph
6am
31°F
49°F
30.18 hPa
3 mph
E
G: 5 mph
8am
36°F
49°F
30.20 hPa
1 mph
NNE
G: 3 mph
10am
45°F
49°F
30.17 hPa
6 mph
NNW
G: 11 mph
12pm
50°F
49°F
30.11 hPa
9 mph
N
G: 16 mph
2pm
54°F
49°F
30.06 hPa
11 mph
N
G: 17 mph
4pm
55°F
49°F
30.01 hPa
10 mph
N
G: 18 mph
6pm
54°F
49°F
30.01 hPa
11 mph
N
G: 18 mph
8pm
49°F
49°F
30.08 hPa
5 mph
N
G: 10 mph
10pm
43°F
49°F
30.14 hPa
4 mph
ENE
G: 8 mph

Water Temperature History

Trends for Groundhog Reservoir

Current Temp

Sign in to view

Latest recorded surface temperature.

Lowest in Period

35°F

On Nov 24

Coldest point in the Last 12 Months.

Average in Period

49°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 (69°F).
  • Coolest avg: December (38°F).
  • Rapid warming often occurs: May → June (+16°F).
  • Sharpest cooling trend: September → October (-12°F).

Weather Forecast

Wind speed and pressure trends

Hourly Wind Forecast

12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm05101520

Wind Direction

93°

Pressure

1020 mb

Cloud Cover

37%

Visibility

17 miles

Daily Pressure Forecast

ThuFriSatSunMonTueWedThuFri0.008.8617.7226.5835.44
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Frequently Asked Questions About Groundhog Reservoir

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