Keyhole Reservoir Conditions: Weather, Water & Fishing

Keyhole Reservoir Conditions: Weather, Water & Fishing | LakeRadar

24-Hour Hourly Weather & Wind Timeline

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Hour-by-hour forecast for Keyhole Reservoir, next 24 hours
Metric	8a	9a	10a	11a	12p	1p	2p	3p	4p	5p	6p	7p	8p	9p	10p	11p	12a	1a	2a	3a	4a	5a	6a	7a
Temp (°F)	46°	45°	45°	45°	44°	44°	48°	57°	66°	73°	78°	84°	88°	90°	89°	85°	80°	75°	70°	67°	65°	64°	63°	62°
Wind (kts)	4	5	6	7	7	7	8	9	10	10	11	10	13	13	13	10	9	8	7	7	7	8	8	7
Direction	SE	SE	SE	S	S	S	S	S	S	S	S	SW	SW	SW	SW	SW	SW	S	S	S	S	S	SW	S
Gusts (kts)	11	13	14	15	16	13	15	16	16	16	16	17	18	19	19	17	16	15	15	15	15	15	16	16
Precip %	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	1%	1%	1%	1%	1%	1%	1%	1%

ForecastView official hourly forecast

Hour-by-hour forecast for Keyhole Reservoir, next 24 hours
Time	Temp	Wind	Gusts	Precip	Cloud	Condition
Fri, 2 AM MDT	46°F	5 mph SE (135°)	13 mph	0%	15%	Mostly Clear
Fri, 3 AM MDT	45°F	6 mph SE (135°)	15 mph	0%	15%	Mostly Clear
Fri, 4 AM MDT	45°F	7 mph SE (135°)	16 mph	0%	18%	Mostly Clear
Fri, 5 AM MDT	45°F	8 mph S (180°)	17 mph	0%	18%	Mostly Clear
Fri, 6 AM MDT	44°F	8 mph S (180°)	18 mph	0%	17%	Sunny
Fri, 7 AM MDT	44°F	8 mph S (180°)	15 mph	0%	21%	Sunny
Fri, 8 AM MDT	48°F	9 mph S (180°)	17 mph	0%	14%	Sunny
Fri, 9 AM MDT	57°F	10 mph S (180°)	18 mph	0%	7%	Sunny
Fri, 10 AM MDT	66°F	12 mph S (180°)	18 mph	0%	6%	Sunny
Fri, 11 AM MDT	73°F	12 mph S (180°)	18 mph	0%	7%	Sunny
Fri, 12 PM MDT	78°F	13 mph S (180°)	18 mph	0%	7%	Sunny
Fri, 1 PM MDT	84°F	12 mph SW (225°)	20 mph	0%	8%	Sunny
Fri, 2 PM MDT	88°F	15 mph SW (225°)	21 mph	0%	10%	Sunny
Fri, 3 PM MDT	90°F	15 mph SW (225°)	22 mph	0%	9%	Sunny
Fri, 4 PM MDT	89°F	15 mph SW (225°)	22 mph	0%	7%	Sunny
Fri, 5 PM MDT	85°F	12 mph SW (225°)	20 mph	0%	6%	Sunny
Fri, 6 PM MDT	80°F	10 mph SW (225°)	18 mph	1%	7%	Mostly Clear
Fri, 7 PM MDT	75°F	9 mph S (180°)	17 mph	1%	9%	Mostly Clear
Fri, 8 PM MDT	70°F	8 mph S (180°)	17 mph	1%	9%	Mostly Clear
Fri, 9 PM MDT	67°F	8 mph S (180°)	17 mph	1%	8%	Mostly Clear
Fri, 10 PM MDT	65°F	8 mph S (180°)	17 mph	1%	8%	Mostly Clear
Fri, 11 PM MDT	64°F	9 mph S (180°)	17 mph	1%	11%	Mostly Clear
Sat, 12 AM MDT	63°F	9 mph SW (225°)	18 mph	1%	17%	Mostly Clear
Sat, 1 AM MDT	62°F	8 mph S (180°)	18 mph	1%	30%	Partly Cloudy
Sat, 2 AM MDT	62°F	8 mph S (180°)	18 mph	1%	29%	Partly Cloudy

Official National Weather Service hourly forecast. Showing 10 of 25 hours. Wind arrows point the way the wind is blowing; the compass point and degrees show where it comes from.

7-Day Weather & Wind Forecast

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Seven-day forecast periods for Keyhole Reservoir from the official forecast source
Period	Overnight October 9, 2026	Friday October 9, 2026	Friday Night October 9, 2026	Saturday October 10, 2026	Saturday Night October 10, 2026	Sunday October 11, 2026	Sunday Night October 11, 2026	Columbus Day October 12, 2026	Monday Night October 12, 2026	Tuesday October 13, 2026	Tuesday Night October 13, 2026	Wednesday October 14, 2026	Wednesday Night October 14, 2026	Thursday October 15, 2026
Temp (°F)	44°	90°	55°	88°	43°	64°	38°	62°	36°	66°	38°	62°	35°	57°
Wind	SE 5 to 8 mph	S 8 to 15 mph	S 6 to 10 mph	S 6 to 12 mph	N 3 to 7 mph	N 3 to 10 mph	E 5 to 12 mph	W 8 mph	E 2 to 8 mph	S 5 to 10 mph	SE 6 mph	SW 5 to 12 mph	NW 8 to 15 mph	NW 16 to 22 mph
Gusts	17 mph	22 mph	18 mph	21 mph	17 mph	21 mph	21 mph	18 mph	17 mph	20 mph	16 mph	22 mph	28 mph	31 mph
Precip %	0%	0%	1%	4%	31%	23%	68%	39%	30%	32%	59%	63%	60%	51%
Forecast	Mostly Clear	Sunny	Mostly Clear	Sunny	Chance Light Rain	Slight Chance Light Rain then Mostly Cloudy	Light Rain Likely	Chance Light Rain then Partly Sunny	Chance Light Rain	Chance Light Rain	Rain Likely	Rain Likely	Rain Likely	Chance Light Rain

Forecast periods from official National Weather Service grid. Detailed 7-Day & Hourly Forecast →

Fishing Conditions & Outlook

Solunar windows, water thermocline & species tactics

Score 83 · Good

Good for fishing (83/100), from 5 available inputs. Supporting this: Wind 5 mph from the southeast. 0% chance of precipitation. Not available from a verified source for this lake: pressure trend, water temperature. Confidence is moderate (74%) because some inputs are unavailable or older than ideal.

Prime Solunar Window

5:00 AM MDT – 11:00 AM MDT

Water Layer Temp

Sensor Pending

Surface Chop

1 mph

Barometer Trend

29.84 inHg

Verified Game Fish Species (6):

🐟Northern Pike🐟Green Sunfish🐟Smallmouth Bass🐟Channel Catfish

View Full Fishing Forecast & Solunar Times →Fishing methodology →

Boating & Sailing Outlook

Surface chop, sustained knots, gusts & launch facilities

Boating 73Sailing 61

Motorized Boating

Launch Access

Fair for boating (73/100), from 4 available inputs. Supporting this: Wind 5 mph from the southeast. Gusts to 13 mph. Working against it: Active severe alert: Red Flag Warning. Not available from a verified source for this lake: visibility and conditions, verified water access. Confidence is moderate (84%) because some inputs are unavailable or older than ideal.

Surface state: Glass / Light Ripple

Boating Outlook & Ramps Directory →

Sailing & Wind Trim

1 kts (1 mph)

Fair for sailing (61/100), from 4 available inputs. Supporting this: Gusts exceed sustained wind by 8 mph, making the breeze puffy. 0% chance of precipitation. Working against it: Active severe alert: Red Flag Warning. Not available from a verified source for this lake: visibility. Confidence is high (88%).

Kayaking, Paddling & Swimming

Paddle drag, thermal comfort & cold water immersion safety

Paddling 73Swimming --

Paddlecraft Readiness

Glassy Surface

Fair for kayaking (73/100), from 5 available inputs. Supporting this: Wind 5 mph from the southeast. Gusts to 13 mph. Working against it: Active severe alert: Red Flag Warning. Confidence is high (90%).

Immersion: Wear USCG Approved Life Jacket

Paddlecraft Guidelines & Launch Points →

Swimming & Immersion

Not monitored

Water temperature is not available from a verified source for this lake. No swimming score is shown without it.

Water Temperature & 30-Day History →

Lake Guide & Verified Facts

Visitor Essentials, Seasonal Guide & Hydrographic Profile

As a prominent feature of WY's hydrographic network, Keyhole Reservoir provides rewarding recreation for both motorized craft and paddleboarders. Its channels and bays offer shelter from prevailing winds and fertile habitat for regional sportfish. Review state fishing license requirements and local launch regulations before putting in.

Surface Area

13,700 acres (21 sq mi)

Max Depth

Not documented

Surface Elevation

Not documented

Managing Authority

State & Local Authorities

Classification

Reservoir

State Jurisdiction

Visitor Essentials · Know Before You Go

Fishing Licensing (WGFD)

Valid freshwater sport fishing license issued by Wyoming Game and Fish Department (WGFD) is required for anglers age 14+. Digital license on mobile is accepted.

Boating & AIS Biosecurity Protocol

Mandatory Clean, Drain & Dry inspection. Out-of-area craft require on-site Aquatic Invasive Species (AIS Quagga/Zebra) inspection or decontamination before launch. USCG life jackets required for all.

Public Recreation & Access Pass

Public shoreline and boating access managed by State & Local Authorities. Verify seasonal gate hours, launch fees, and parking rules before travel.

Primary Water Recreation Profile

High-speed motorboating, pontoon cruising, wakeboarding, and water skiing across main channels. Target gamefish include Northern Pike, Green Sunfish, Smallmouth Bass, Channel Catfish. Morning hours typically provide optimal glassy conditions for kayak and stand-up paddleboard (SUP) touring.

Seasonal Recreation & Climate Windows

Summer Peak (Jun–Aug)Peak Season

Warm water temperatures, peak swimming, active watersports, and open full-service campgrounds. Highest weekly attendance; plan early arrivals on summer weekends.

Spring & Fall ShoulderPrime Angling

Spring pre-spawn and fall feeding transitions create prime trophy angling conditions. Cooler air, lower boat traffic, and vibrant seasonal shoreline foliage.

Winter Season (Nov–Mar)Off-Season

Northern cold winter conditions with freezing air temperatures and potential surface ice formation. Ramps and water systems may be winterized. Confirm open status before visiting.

Get Directions (GPS) ↗Managing Authority Portal ↗

All geographical facts sourced from official agency recordsView sources →

Keyhole Reservoir Conditions

Red Flag Warning

Quick Conditions

LakeRadar Score

24-Hour Hourly Weather & Wind Timeline

7-Day Weather & Wind Forecast

Water Level & Hydrographic Baseline

Water Temperature (Surface)

Fishing Conditions & Outlook

Boating & Sailing Outlook

Kayaking, Paddling & Swimming

Interactive Map & Navigation Radar

Coordinates and access points

Public Access & Facilities

Boating & Water Regulations

Lake Guide & Verified Facts

Official alerts

Red Flag Warning

Quick Conditions

LakeRadar Score

24-Hour Hourly Weather & Wind Timeline

7-Day Weather & Wind Forecast

Water Level & Hydrographic Baseline

Water Temperature (Surface)

Fishing Conditions & Outlook

Boating & Sailing Outlook

Kayaking, Paddling & Swimming

Interactive Map & Navigation Radar

Coordinates and access points

Public Access & Facilities

Boating & Water Regulations

Lake Guide & Verified Facts

Related Lakes

Sources and methodology

National Weather Service