Keyhole Reservoir

Keyhole Reservoir

Moorcroft, Crook County, WY
15mi²
1239.00ft
Directions
Lake Information

Keyhole Reservoir, nestled in the picturesque Crook County of Wyoming, is a sprawling waterbody spanning an impressive 9,299 acres. This vast reservoir is a haven for outdoor enthusiasts, offering a wide range of recreational activities set amidst stunning natural surroundings. With its diverse offerings, including swimming, hiking, boating, water skiing, bird-watching, and fishing, Keyhole Reservoir and its nearby State Park provide an ideal destination for individuals and families seeking both adventure and relaxation. One of the main attractions of Keyhole Reservoir is its excellent fishing opportunities. Anglers of all skill levels can cast their lines into the reservoir's depths in search of a variety of fish species. Bass, including largemouth and smallmouth, thrive in these waters, providing exciting challenges for bass fishing enthusiasts. Catfish, crappie, walleye, bluegill, perch, sunfish, and northern pike also inhabit the reservoir, ensuring a diverse and rewarding fishing experience. Whether you prefer casting from the shore or venturing out onto the tranquil waters in a boat, Keyhole Reservoir offers ample opportunities to reel in a prized catch. For those seeking an escape from the summer heat, Keyhole Reservoir's nearby State Park provides a refreshing swimming experience. The designated swimming areas offer a safe and inviting environment for visitors of all ages to cool off and enjoy the crystal-clear waters. Whether you prefer a leisurely dip or an invigorating swim, the reservoir provides a scenic backdrop for a refreshing aquatic adventure. Hiking enthusiasts can explore the surrounding landscapes and embark on scenic trails within the State Park. The park's well-maintained hiking trails wind through diverse terrain, allowing visitors to immerse themselves in the natural beauty of the area. From gentle walks along the shoreline to more challenging hikes that traverse hills and offer panoramic views, there are options for every level of hiker. Along the trails, nature enthusiasts can appreciate the rich flora and fauna, spot various bird species, and encounter wildlife in their natural habitats. Boating and water skiing are popular activities on Keyhole Reservoir, thanks to its expansive size and calm waters. Whether you prefer sailing on a sailboat, cruising on a motorized boat, or experiencing the thrill of water skiing, the reservoir offers plenty of space for water-based adventures. Boaters can explore the reservoir's hidden coves, admire the scenic shoreline, and revel in the serenity of the surrounding landscapes. Bird-watchers will find Keyhole Reservoir to be a haven for avian diversity. The reservoir's natural habitats and surrounding wetlands attract a wide array of bird species, making it an ideal location for bird-watching enthusiasts. Visitors can observe graceful waterfowl, majestic raptors, and various migratory birds as they traverse the reservoir's shores or embark on dedicated bird-watching excursions within the State Park. In conclusion, Keyhole Reservoir and its accompanying State Park in Crook County, Wyoming, offer a wealth of recreational opportunities and natural beauty. From fishing and boating to swimming, hiking, bird-watching, and water skiing, there is something for everyone to enjoy in this vast reservoir. With its abundant fish species, scenic trails, serene waters, and diverse wildlife, Keyhole Reservoir is a haven for outdoor enthusiasts seeking adventure and tranquility in the heart of Wyoming's captivating landscapes.

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Current Conditions

49°F°
Feels like 43°F°
Cloudy
Today's High
50°F°
Today's Low
35°F°

Water Temperature

51°F
Updated: (Apr 30)
Sign in to contribute temps.

Current water temperature for Keyhole Reservoir is 51°F.

Current Snapshot

Wind8 mph NW (Gust 14 mph)
Pressure
29.98 inHg
Visibility13 mi
Humidity72%
Cloud Cover91%

Forecast: Thursday, May 1

Day 1 of 9

Hourly Insights

7 AM
37°F°
10 AM
43°F°
17%
1 PM
47°F°
17%
4 PM
48°F°
19%

Temperature

High
50°F°
Low
35°F°

Precipitation

Chance31%
Amount0.07"
Typerain

Wind

8mph
Avg Speed
Gusts up to
30mph
CalmModerateStrong
Max Speed21 mph

Sun, Moon & UV

Sunrise11:49 AM
Sunset2:03 AM
Moon PhasewaxingCrescent
Max UV Index4 (Moderate)

Solunar Fishing Forecast

Action Rating
3/5

Todays action is rated a 3 (scale is 0 thru 5, 5 is the best)

Major Times (Best)

11:30 PM - 2:00 AM

7:55 AM - 10:25 AM

Minor Times (Good)

2:02 PM - 3:32 PM

6:00 AM - 6:00 AM

Outlook for Thursday at Keyhole Reservoir

Expect temperatures ranging from 35°F to 50°F. There's a 31% chance of rain, potentially bringing around 0.07" rain. Winds will be averaging 8 mph, with potential gusts reaching up to 30 mph. The maximum UV index will be 4 (Moderate), so plan sun protection accordingly. For anglers, today's fishing action is rated 3/5 (Todays action is rated a 3 (scale is 0 thru 5, 5 is the best)). Look for the best bite times during the major periods around 11:30 PM and 7:55 AM, or try the minor windows near 2:02 PM and 6:00 AM for potential early morning or evening action. Check back for the latest conditions and forecasts for Keyhole Reservoir.

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May 1st 2025

Lake Information

Elevation
1239 ft
Area
15 mi²
Coordinates
44.370, -104.778

Weather Forecast

Thursday

50°F
35°F

Friday

62°F
33°F

Saturday

72°F
40°F

Sunday

75°F
50°F

Monday

62°F
46°F

Tuesday

57°F
42°F

Wednesday

65°F
43°F

Thursday

72°F
43°F

Friday

69°F
47°F
Thursday - 5/1/2025
50°F
35°F
12am
38°F
51°F
30.08 hPa
2 mph
NNW
G: 4 mph
2am
37°F
51°F
30.11 hPa
0 mph
NW
G: 1 mph
4am
35°F
51°F
30.12 hPa
1 mph
S
G: 2 mph
6am
35°F
51°F
30.12 hPa
1 mph
SSE
G: 1 mph
8am
39°F
51°F
30.13 hPa
1 mph
SSW
G: 3 mph
10am
43°F
51°F
30.13 hPa
5 mph
NNW
G: 9 mph
12pm
46°F
51°F
30.10 hPa
10 mph
NW
G: 16 mph
2pm
49°F
51°F
30.09 hPa
18 mph
NNW
G: 27 mph
4pm
48°F
51°F
30.08 hPa
21 mph
NNW
G: 30 mph
6pm
49°F
51°F
30.09 hPa
17 mph
NNW
G: 28 mph
8pm
44°F
51°F
30.12 hPa
10 mph
N
G: 15 mph
10pm
39°F
51°F
30.17 hPa
4 mph
NW
G: 8 mph

Water Temperature History

Trends for Keyhole Reservoir

Current Temp

Sign in to view

Latest recorded surface temperature.

Lowest in Period

33°F

On Jan 22

Coldest point in the Last 12 Months.

Average in Period

48°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 (74°F).
  • Coolest avg: February (33°F).
  • Rapid warming often occurs: April → May (+19°F).
  • Sharpest cooling trend: September → October (-16°F).

Weather Forecast

Wind speed and pressure trends

Hourly Wind Forecast

Wind Direction

334°

Pressure

1019 mb

Cloud Cover

14%

Visibility

9 miles

Daily Pressure Forecast

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Frequently Asked Questions About Keyhole Reservoir

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