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Red Rock Reservoir
76°F
Red Rock Reservoir
Knoxville, IA · Marion County
76°F water15,250 acres719 ft elev14 fish species
Right Now
88°
Clear
Water
76°
Wind
4 mph
E
Gusts
5 mph
Pressure
30.01
steady
LakeMonster planner
Plan Red Rock Reservoir
Red Rock 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 2 mph wind.
Listed targets to ask about: Largemouth bass · Smallmouth bass
9 lake data sources in this readSee dataHideLatest source updated Jul 16, 4:32 AM CDT
- Current water temp
- 76°F
- Water temp history
- 500 readings
- Hourly weather
- 224 hours
- Solunar timing
- 3/5
- Fish species
- 14 listed
- Satellite imagery
- 311 captures
- Thermal imagery
- 1399 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 - Thu, Jul 16
High / Low
91° / 73°
Wind
2 mph
gusts 8 mph
Precip
46%
UV
9
Sunrise
5:53 AM
Sunset
8:43 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
Sun, Jul 19
54/100
Sun, Jul 19 scores 54/100: Wind 6 mph, Pressure rising.
Best for Boating
Wed, Jul 22
80/100
Wed, Jul 22 scores 80/100: Wind 9 mph, Rain 0%.
Best for Swimming
Wed, Jul 22
75/100
Wed, Jul 22 scores 75/100: Air 80°F, Rain 0%.
Best for Paddling
Sat, Jul 18
80/100
Sat, Jul 18 scores 80/100: Wind 8 mph.
Temperature Range
High Low
Precip & Wind
Rain % Wind mph
Daily Breakdown
Swipe to see all 9 days
| Metric | Thu16 | Fri17 | Sat18 | Sun19 | Mon20 | Tue21 | Wed22 | Thu23 | Fri24 |
|---|---|---|---|---|---|---|---|---|---|
| Condition | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear | Partly Cloudy | Mostly Clear | Partly Cloudy | Rain | Partly Cloudy |
| High / Low | 91°/73° | 91°/74° | 93°/74° | 89°/70° | 94°/77° | 90°/77° | 80°/69° | 71°/65° | 83°/64° |
| Precip | 46% | 53% | 37% | 25% | 32% | 24% | 0% | 58% | 0% |
| Wind | 5 mphgust 8 | 9 mphgust 14 | 8 mphgust 19 | 6 mphgust 12 | 7 mphgust 15 | 10 mphgust 22 | 9 mphgust 17 | 9 mphgust 15 | 10 mphgust 16 |
| Pressure | 30.00" stable | 29.96" falling | 29.88" falling | 29.89" rising | 29.80" falling | 29.85" rising | 30.03" rising | 30.03" stable | 29.89" falling |
| UV Index | 9 | 8 | 9 | 9 | 7 | 9 | 8 | 5 | 8 |
| Sunrise | 5:53 AM | 5:53 AM | 5:54 AM | 5:55 AM | 5:56 AM | 5:57 AM | 5:58 AM | 5:59 AM | 5:59 AM |
| Sunset | 8:43 PM | 8:43 PM | 8:42 PM | 8:41 PM | 8:40 PM | 8:40 PM | 8:39 PM | 8:38 PM | 8:37 PM |
| Bite Rating | 3/5NEW | 2/5waxing crescent | 2/5waxing crescent | 2/5waxing crescent | 3/5waxing crescent | 2/5first quarter | 2/5first quarter | 3/5first quarter | 2/5waxing gibbous |
Today Read
Red Rock ReservoirWind read
Calm
2 mph avg
Water read
76°
Warm-water bite
Air range
73° / 91°
today
Precip
46%
watch timing
Today's forecast for Red Rock Reservoir has calm wind, 73F to 91F air temperatures, 46% chance of precipitation, and 76F water.
Fishing Forecast
NEW
3/5
Major
3:04 PM - 5:34 PM
Minor
7:59 AM - 9:29 AM
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July 12, 2026
Fish Species
14Water Temperature History
Current
77°
Jun 28
Low
36°
Feb 16
Average
60°
Last 12 Months
Warmest avg: June (76°F)
Coolest avg: February (40°F)
Rapid warming: April → May (+13°F)
Sharpest cooling: September → October (-11°F)
Weather Forecast
Wind speed, gusts, and pressure trends for trip timing.
7 day view
Hourly Wind Forecast
Swipe days or tap points
16
12am - 11pm
Wind SpeedWind Gust
Tap pointsPeak Wind
5 mph
6pm
Peak Gust
8 mph
highest gust
Pressure
30.02 inHg
steady
Visibility
12 mi
8% 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
Major3:04 PM - 5:34 PM
Minor7:59 AM - 9:29 AM
Water at 76°F -- warm-water species active.
Fish Species
14Nearby Lakes
Lake facts
About Red Rock 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 Red Rock Reservoir, updated Jul 16, 2026, shows 76°F surface water temperature, 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.
Red Rock Reservoir has 15,250 acres based on the latest lake profile available to LakeMonster.
Red Rock Reservoir is listed in Knoxville, Marion County, IA. Check the responsible local or state agency for current access rules, permits, closures, and boating restrictions.
LakeMonster lists Largemouth bass, Smallmouth bass, White bass, Black crappie, White crappie, Bluegill, Channel catfish, Flathead catfish, Walleye, Northern pike, Muskellunge, Yellow perch, Freshwater drum, Gar for Red Rock Reservoir. A species listing does not guarantee current activity; use current temperature, weather, recent reports, and local regulations when planning.