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Hells Canyon Reservoir
71°F
Hells Canyon Reservoir
Eagle Bar, ID · Adams County
71°F water2,470 acres1,703 ft elev8 fish species
Right Now
76°
Mostly Clear
Water
71°
Wind
4 mph
SSW
Gusts
7 mph
Pressure
30.02
falling
LakeMonster planner
Plan Hells Canyon Reservoir
Hells Canyon Reservoir
Warm water pushes the plan toward oxygen, shade, depth changes, and low light. The planning constraint is finding the right window.
Best first move
Scout the first break or defined cover closest to a feeding flat.
keep shade, oxygen, and a nearby depth change in the plan A workable forecast window starts near 6am with about 4 mph wind.
Listed targets to ask about: Rainbow trout · Brown trout
9 lake data sources in this readSee dataHideLatest source updated Jul 15, 10:00 PM MDT
- Current water temp
- 71°F
- Water temp history
- 468 readings
- Hourly weather
- 224 hours
- Solunar timing
- 3/5
- Fish species
- 8 listed
- Satellite imagery
- 290 captures
- Thermal imagery
- 1344 captures
- Map structure
- available
- Nearby lakes
- 3 options
The quick read is a planning aid, not a safety or access determination. The assistant will state uncertainty when the page does not contain a specific observation.
Forecast - Wed, Jul 15
High / Low
85° / 59°
Wind
4 mph
gusts 13 mph
Precip
0%
UV
9
Sunrise
6:14 AM
Sunset
9:31 PM
7-Day Weather Outlook
Every forecast metric for the week ahead, plus best days for fishing, boating, swimming, and paddling.
9 day forecast
Best Days This Week
Quick recommendations based on wind, precip, pressure, solunar, and temperature.
Best for Fishing
Wed, Jul 15
55/100
Wed, Jul 15 scores 55/100: Solunar 3/5, Wind 7 mph.
Best for Boating
Wed, Jul 15
90/100
Wed, Jul 15 scores 90/100: Wind 7 mph, Rain 0%.
Best for Swimming
Mon, Jul 20
80/100
Mon, Jul 20 scores 80/100: Air 85°F, Rain 0%.
Best for Paddling
Wed, Jul 15
85/100
Wed, Jul 15 scores 85/100: Wind 7 mph, Rain 0%.
Temperature Range
High Low
Precip & Wind
Rain % Wind mph
Daily Breakdown
Swipe to see all 9 days
| Metric | Wed15 | Thu16 | Fri17 | Sat18 | Sun19 | Mon20 | Tue21 | Wed22 | Thu23 |
|---|---|---|---|---|---|---|---|---|---|
| Condition | Clear | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Cloudy | Mostly Cloudy | Partly Cloudy | Partly Cloudy |
| High / Low | 85°/59° | 89°/63° | 88°/62° | 86°/61° | 86°/60° | 85°/62° | 83°/63° | 84°/64° | 85°/63° |
| Precip | 0% | 28% | 47% | 49% | 0% | 0% | 24% | 21% | 14% |
| Wind | 7 mphgust 13 | 10 mphgust 21 | 7 mphgust 16 | 6 mphgust 19 | 6 mphgust 19 | 6 mphgust 17 | 5 mphgust 17 | 4 mphgust 14 | 4 mphgust 15 |
| Pressure | 29.95" stable | 29.78" falling | 29.84" rising | 29.91" rising | 29.88" falling | 29.87" stable | 29.88" stable | 29.91" rising | 29.87" falling |
| UV Index | 9 | 9 | 8 | 8 | 8 | 6 | 7 | 7 | 8 |
| Sunrise | 6:14 AM | 6:15 AM | 6:15 AM | 6:16 AM | 6:17 AM | 6:18 AM | 6:19 AM | 6:21 AM | 6:22 AM |
| Sunset | 9:31 PM | 9:30 PM | 9:29 PM | 9:29 PM | 9:28 PM | 9:27 PM | 9:26 PM | 9:25 PM | 9:24 PM |
| Bite Rating | 3/5NEW | 3/5NEW | 2/5waxing crescent | 2/5waxing crescent | 2/5waxing crescent | 3/5waxing crescent | 3/5first quarter | 2/5first quarter | 3/5first quarter |
Today Read
Hells Canyon ReservoirWind read
Calm
4 mph avg
Water read
71°
Warm-water bite
Air range
59° / 85°
today
Precip
0%
low concern
Today's forecast for Hells Canyon Reservoir has calm wind, 59F to 85F air temperatures, 0% chance of precipitation, and 71F water.
Fishing Forecast
NEW
3/5
Major
2:49 PM - 5:19 PM
Minor
7:08 AM - 8:38 AM
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July 8, 2026
Fish Species
8Water Temperature History
Current
75°
Jul 19
Low
41°
Feb 17
Average
59°
Last 12 Months
Warmest avg: July (71°F)
Coolest avg: February (45°F)
Rapid warming: April → May (+8°F)
Sharpest cooling: January → February (-11°F)
Weather Forecast
Wind speed, gusts, and pressure trends for trip timing.
7 day view
Hourly Wind Forecast
Swipe days or tap points
15
12am - 11pm
Wind SpeedWind Gust
Tap pointsPeak Wind
7 mph
10pm
Peak Gust
13 mph
highest gust
Pressure
30.02 inHg
steady
Visibility
20 mi
14% clouds
Tap chart for details, swipe left or right for different days.Tap chart for details • Swipe for different days
Daily Pressure Forecast
Pressure stability helps plan windows
Pressure
Tap for detailsTap chart points for pressure details
Nearby Lakes
Fishing Forecast
3/5NEW
Major2:49 PM - 5:19 PM
Minor7:08 AM - 8:38 AM
Water at 71°F -- warm-water species active.
Fish Species
8Nearby Lakes
Lake facts
About Hells Canyon Reservoir
Direct answers from the lake profile and latest available condition data. Verify access, regulations, weather alerts, and safety conditions with local authorities.
The latest available LakeMonster reading for Hells Canyon Reservoir, updated Jul 15, 2026, shows 71°F surface water temperature, mostly clear, 4 mph wind. Conditions can vary across the lake and change quickly, so check local weather, access notices, and on-water observations before acting.
Hells Canyon Reservoir has 2,470 acres based on the latest lake profile available to LakeMonster.
Hells Canyon Reservoir is listed in Eagle Bar, Adams County, ID. Check the responsible local or state agency for current access rules, permits, closures, and boating restrictions.
LakeMonster lists Rainbow trout, Brown trout, Chinook salmon, Smallmouth bass, Largemouth bass, Channel catfish, Gar, Bluegill for Hells Canyon Reservoir. A species listing does not guarantee current activity; use current temperature, weather, recent reports, and local regulations when planning.