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Red Rock Lake sits in Iowa and is classified as a lake. At around 15,250 acres (about 24 square miles), it is a large waterbody. Fish documented in the area include Mackinaw (Lake Trout), Northern Pike, Walleye, and Smallmouth Bass. The deepest point reaches about 45 feet, and the surface sits near 742 feet above sea level. Below you will find an hourly and 7-day forecast, wind and gust outlook, fishing conditions, and activity scores for boating, paddling, and swimming. Nearby alternatives include Gunflint Lake. Check the hourly forecast and activity outlook below before heading out to Red Rock Lake.
Updated
No active alerts for this lake as of the last check (Oct 9, 5:35 AM CDT). Alerts are re-checked automatically; see the official source for updates.
Overall Good (87/100) across 4 activities. Best right now: Boating (100/100).
How the score is calculated →Best excellent fishing window, averaging 93/100 across these hours. Wind 5 mph from the southeast. Dusk hours (18:00 local). Derived from the hourly forecast; official alerts are not forecast and are checked separately.
| Metric | 10a | 11a | 12p | 1p | 2p | 3p | 4p | 5p | 6p | 7p | 8p | 9p | 10p | 11p | 12a | 1a | 2a | 3a | 4a | 5a | 6a | 7a | 8a | 9a |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp (°F) | 34° | 35° | 35° | 37° | 43° | 50° | 54° | 57° | 59° | 60° | 60° | 60° | 58° | 54° | 48° | 46° | 45° | 45° | 46° | 47° | 48° | 48° | 48° | 49° |
| Wind (kts) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| Direction | — | — | — | — | — | — | — | S | S | S | S | S | SE | SE | SE | SE | SE | SE | SE | SE | SE | SE | SE | SE |
| Gusts (kts) | 2 | 2 | 2 | 2 | 4 | 4 | 7 | 8 | 9 | 11 | 12 | 13 | 14 | 15 | 15 | 18 | 19 | 20 | 19 | 18 | 17 | 16 | 17 | 17 |
| Precip % | 0% | 0% | 0% | 0% | 0% | 1% | 1% | 1% | 1% | 1% | 1% | 1% | 2% | 2% | 3% | 3% | 3% | 2% | 2% | 2% | 2% | 2% | 2% | 2% |
| Time | Temp | Wind | Gusts | Precip | Cloud | Condition |
|---|---|---|---|---|---|---|
| Fri, 5 AM CDT | 34°F | Calm | 2 mph | 0% | 56% | Mostly Cloudy |
| Fri, 6 AM CDT | 35°F | Calm | 2 mph | 0% | 52% | Partly Sunny |
| Fri, 7 AM CDT | 35°F | Calm | 2 mph | 0% | 57% | Partly Sunny |
| Fri, 8 AM CDT | 37°F | Calm | 2 mph | 0% | 51% | Partly Sunny |
| Fri, 9 AM CDT | 43°F | Calm | 5 mph | 0% | 42% | Mostly Sunny |
| Fri, 10 AM CDT | 50°F | Calm | 5 mph | 1% | 31% | Mostly Sunny |
| Fri, 11 AM CDT | 54°F | Calm | 8 mph | 1% | 34% | Mostly Sunny |
| Fri, 12 PM CDT | 57°F | 5 mph S (180°) | 9 mph | 1% | 24% | Sunny |
| Fri, 1 PM CDT | 59°F | 5 mph S (180°) | 10 mph | 1% | 35% | Mostly Sunny |
| Fri, 2 PM CDT | 60°F | 5 mph S (180°) | 13 mph | 1% | 33% | Mostly Sunny |
| Fri, 3 PM CDT | 60°F | 5 mph S (180°) | 14 mph | 1% | 31% | Mostly Sunny |
| Fri, 4 PM CDT | 60°F | 5 mph S (180°) | 15 mph | 1% | 35% | Mostly Sunny |
| Fri, 5 PM CDT | 58°F | 5 mph SE (135°) | 16 mph | 2% | 42% | Mostly Sunny |
| Fri, 6 PM CDT | 54°F | 5 mph SE (135°) | 17 mph | 2% | 46% | Partly Cloudy |
| Fri, 7 PM CDT | 48°F | 5 mph SE (135°) | 17 mph | 3% | 51% | Mostly Cloudy |
| Fri, 8 PM CDT | 46°F | 5 mph SE (135°) | 21 mph | 3% | 51% | Mostly Cloudy |
| Fri, 9 PM CDT | 45°F | 5 mph SE (135°) | 22 mph | 3% | 45% | Partly Cloudy |
| Fri, 10 PM CDT | 45°F | 5 mph SE (135°) | 23 mph | 2% | 55% | Mostly Cloudy |
| Fri, 11 PM CDT | 46°F | 5 mph SE (135°) | 22 mph | 2% | 56% | Mostly Cloudy |
| Sat, 12 AM CDT | 47°F | 5 mph SE (135°) | 21 mph | 2% | 61% | Mostly Cloudy |
| Sat, 1 AM CDT | 48°F | 5 mph SE (135°) | 20 mph | 2% | 66% | Mostly Cloudy |
| Sat, 2 AM CDT | 48°F | 5 mph SE (135°) | 18 mph | 2% | 64% | Mostly Cloudy |
| Sat, 3 AM CDT | 48°F | 5 mph SE (135°) | 20 mph | 2% | 65% | Mostly Cloudy |
| Sat, 4 AM CDT | 49°F | 5 mph SE (135°) | 20 mph | 2% | 65% | Mostly Cloudy |
| Sat, 5 AM CDT | 49°F | 5 mph SE (135°) | 20 mph | 2% | 62% | Mostly 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.
| 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) | 30° | 60° | 45° | 75° | 61° | 75° | 45° | 54° | 35° | 51° | 34° | 54° | 38° | 54° |
| Wind | 0 mph | SE 0 to 5 mph | SE 5 mph | S 5 to 10 mph | S 5 to 10 mph | W 5 mph | NE 5 mph | NE 5 mph | NE 0 to 5 mph | N 0 to 5 mph | 0 mph | SE 0 to 5 mph | SE 5 mph | S 5 to 10 mph |
| Gusts | 2 mph | 20 mph | 25 mph | 25 mph | 25 mph | 20 mph | 15 mph | 20 mph | 15 mph | 10 mph | 8 mph | 15 mph | 20 mph | 25 mph |
| Precip % | 0% | 2% | 3% | 2% | 0% | 2% | 65% | 65% | 38% | 11% | 4% | 13% | 53% | 64% |
| Forecast |
No active USGS or USACE telemetry gauge is currently mapped to Red Rock Lake. Not available from a verified source for this lake.
Good for fishing (85/100), from 5 available inputs. Supporting this: Wind 0 mph from the south-southwest. 0% chance of precipitation. Working against it: Air temperature 34°F. 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.
Excellent for boating (100/100), from 4 available inputs. Supporting this: Wind 0 mph from the south-southwest. Gusts to 2 mph. 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.
Fair for sailing (63/100), from 4 available inputs. Supporting this: Gusts are within 2 mph of sustained wind, so the breeze is steady. No active official alerts for this lake. Working against it: Wind 0 mph is light; expect limited sailing. Not available from a verified source for this lake: visibility. Confidence is high (88%).
Excellent for kayaking (96/100), from 5 available inputs. Supporting this: Wind 0 mph from the south-southwest. Gusts to 2 mph. Working against it: Air temperature 34°F. Confidence is high (90%).
Water temperature is not available from a verified source for this lake. No swimming score is shown without it.
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Individual boat ramp GPS coordinates are maintained under the jurisdiction of IA Parks & Wildlife Authority. Public boaters should verify seasonal launch water levels, gate hours, and daily vehicle/vessel fees before traveling.
Red Rock Lake serves IA & MN as a major recreational venue, featuring well-maintained boat ramps, picnic facilities, and scenic waterfront views. Whether casting for bass or cruising the main basin with family, visitors find ample opportunities to enjoy the water. Stewardship and oversight are overseen by state and local natural resource agencies.
Valid freshwater sport fishing license issued by Iowa Department of Natural Resources (IDNR) is required for anglers age 16+. Digital license on mobile is accepted.
Current motorized watercraft registration mandatory. Practice Clean, Drain & Dry protocols: drain all livewells and inspect props before launching. Life jackets required for all passengers.
Public shoreline and boating access managed by State & Local Authorities. Verify seasonal gate hours, launch fees, and parking rules before travel.
High-speed motorboating, pontoon cruising, wakeboarding, and water skiing across main channels. Target gamefish include Mackinaw (Lake Trout), Northern Pike, Walleye, Smallmouth Bass. Morning hours typically provide optimal glassy conditions for kayak and stand-up paddleboard (SUP) touring.
Warm water temperatures, peak swimming, active watersports, and open full-service campgrounds. Highest weekly attendance; plan early arrivals on summer weekends.
Spring pre-spawn and fall feeding transitions create prime trophy angling conditions. Cooler air, lower boat traffic, and vibrant seasonal shoreline foliage.
Mild year-round outdoor climate. Uncrowded waters, active winter bass and crappie fishing, and open year-round boat launch access.
No external source rows are cited by the data currently shown on this page.
Updated
Scores are heuristics, not safety guarantees. LakeRadar scores summarize available conditions and are not a substitute for official warnings, local rules, or on-water judgment.
All telemetry for Red Rock Lake is synchronized directly from authorized federal and state monitoring networks (USGS, NWS, NOAA, and state environmental authorities). Observations are strictly instrumented readings — unmonitored sensors are transparently disclosed rather than synthetic estimates.
Last source audit: Oct 9, 5:35 AM CDT