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Fort Peck Lake is a reservoir located in Montana. The deepest point reaches about 220 feet, and the surface sits near 2,246 feet above sea level. It covers roughly 245,000 surface acres (about 383 square miles). Research-grade observations nearby include Smallmouth Bass, Northern Pike, Chinook Salmon, and Bluegill. The page brings together an hourly and 7-day forecast, wind and gust outlook, fishing conditions, and activity scores for boating, paddling, and swimming. Current weather, wind, and activity conditions for Fort Peck Lake are updated throughout the day.
Updated
No active alerts for this lake as of the last check (Oct 9, 2:07 AM MDT). Alerts are re-checked automatically; see the official source for updates.
Overall Good (89/100) across 4 activities. Best right now: Sailing (94/100).
How the score is calculated →Best excellent fishing window, averaging 95/100 across these hours. Wind 6 mph from the south-southwest. Dusk hours (19:00 local). Derived from the hourly forecast; official alerts are not forecast and are checked separately.
| 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) | 59° | 58° | 58° | 58° | 56° | 58° | 58° | 59° | 64° | 67° | 72° | 74° | 76° | 78° | 77° | 77° | 76° | 72° | 69° | 67° | 66° | 65° | 65° | 64° |
| Wind (kts) | 8 | 8 | 9 | 9 | 9 | 8 | 7 | 7 | 7 | 8 | 8 | 9 | 10 | 10 | 8 | 6 | 4 | 5 | 5 | 6 | 5 | 5 | 6 | 8 |
| Direction | S | S | S | S | SW | SW | SW | SW | SW | SW | SW | SW | SW | W | W | SW | SW | SW | SW | W | W | W | NW | NW |
| Gusts (kts) | 12 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 15 | 16 | 17 | 18 | 18 | 15 | 11 | 8 | 8 | 9 | 9 | 9 | 8 | 10 | 14 |
| Precip % | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 1% | 1% | 3% | 4% | 4% | 2% | 2% | 2% |
| Time | Temp | Wind | Gusts | Precip | Cloud | Condition |
|---|---|---|---|---|---|---|
| Fri, 2 AM MDT | 59°F | 9 mph SSE (158°) | 14 mph | 0% | 32% | Partly Cloudy |
| Fri, 3 AM MDT | 58°F | 9 mph S (180°) | 16 mph | 0% | 45% | Partly Cloudy |
| Fri, 4 AM MDT | 58°F | 10 mph S (180°) | 16 mph | 0% | 46% | Partly Cloudy |
| Fri, 5 AM MDT | 58°F | 10 mph S (180°) | 16 mph | 0% | 55% | Mostly Cloudy |
| Fri, 6 AM MDT | 56°F | 10 mph SSW (203°) | 16 mph | 0% | 54% | Partly Sunny |
| Fri, 7 AM MDT | 58°F | 9 mph SSW (203°) | 16 mph | 0% | 63% | Partly Sunny |
| Fri, 8 AM MDT | 58°F | 8 mph SSW (203°) | 16 mph | 0% | 49% | Mostly Sunny |
| Fri, 9 AM MDT | 59°F | 8 mph SSW (203°) | 16 mph | 0% | 45% | Mostly Sunny |
| Fri, 10 AM MDT | 64°F | 8 mph SSW (203°) | 15 mph | 0% | 43% | Mostly Sunny |
| Fri, 11 AM MDT | 67°F | 9 mph SW (225°) | 17 mph | 0% | 41% | Mostly Sunny |
| Fri, 12 PM MDT | 72°F | 9 mph SW (225°) | 18 mph | 0% | 31% | Mostly Sunny |
| Fri, 1 PM MDT | 74°F | 10 mph SW (225°) | 20 mph | 0% | 23% | Sunny |
| Fri, 2 PM MDT | 76°F | 12 mph SW (225°) | 21 mph | 0% | 15% | Sunny |
| Fri, 3 PM MDT | 78°F | 12 mph WSW (248°) | 21 mph | 0% | 10% | Sunny |
| Fri, 4 PM MDT | 77°F | 9 mph WSW (248°) | 17 mph | 0% | 12% | Sunny |
| Fri, 5 PM MDT | 77°F | 7 mph SW (225°) | 13 mph | 0% | 15% | Sunny |
| Fri, 6 PM MDT | 76°F | 5 mph SW (225°) | 9 mph | 1% | 16% | Mostly Clear |
| Fri, 7 PM MDT | 72°F | 6 mph SSW (203°) | 9 mph | 1% | 21% | Mostly Clear |
| Fri, 8 PM MDT | 69°F | 6 mph SW (225°) | 10 mph | 3% | 24% | Mostly Clear |
| Fri, 9 PM MDT | 67°F | 7 mph W (270°) | 10 mph | 4% | 36% | Partly Cloudy |
| Fri, 10 PM MDT | 66°F | 6 mph WSW (248°) | 10 mph | 4% | 38% | Partly Cloudy |
| Fri, 11 PM MDT | 65°F | 6 mph W (270°) | 9 mph | 2% | 36% | Partly Cloudy |
| Sat, 12 AM MDT | 65°F | 7 mph WNW (293°) | 12 mph | 2% | 45% | Partly Cloudy |
| Sat, 1 AM MDT | 64°F | 9 mph NW (315°) | 16 mph | 2% | 35% | Partly Cloudy |
| Sat, 2 AM MDT | 63°F | 12 mph NW (315°) | 20 mph | 1% | 47% | 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.
| 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) | 56° | 79° | 55° | 63° | 41° | 45° | 38° | 45° | 40° | 55° | 46° | 58° | 46° | 54° |
| Wind | S 10 mph | SW 7 to 12 mph | W 5 to 12 mph | NW 9 to 15 mph | N 16 mph | NNE 12 to 15 mph | NE 13 mph | ENE 7 to 12 mph | SE 6 mph | SE 6 mph | SE 6 mph | WNW 3 to 9 mph | NW 9 to 16 mph | NW 22 mph |
| Gusts | 16 mph | 21 mph | 21 mph | 25 mph | 25 mph | 23 mph | 21 mph | 17 mph | 12 mph | 14 mph | 12 mph | 17 mph | 27 mph | 37 mph |
| Precip % | 0% | 0% | 4% | 7% | 79% | 97% | 81% | 72% | 17% | 12% | 19% | 32% | 39% | 36% |
| Forecast |
No active USGS or USACE telemetry gauge is currently mapped to Fort Peck Lake. Not available from a verified source for this lake.
Good for fishing (85/100), from 5 available inputs. Supporting this: Wind 9 mph from the south-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.
Excellent for boating (90/100), from 4 available inputs. Supporting this: Wind 9 mph from the south-southeast. No active official alerts for this lake. 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.
Excellent for sailing (94/100), from 4 available inputs. Supporting this: Wind 9 mph from the SSE is in the preferred sailing range. No active official alerts for this lake. Not available from a verified source for this lake: visibility. Confidence is high (88%).
Good for kayaking (89/100), from 5 available inputs. Supporting this: Wind 9 mph from the south-southeast. No active official alerts for this lake. 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 MT Parks & Wildlife Authority. Public boaters should verify seasonal launch water levels, gate hours, and daily vehicle/vessel fees before traveling.
As one of MT's notable waterbodies, Fort Peck Lake provides vital freshwater habitat and extensive recreational opportunities for public use. Whether you are navigating main channels by motorboat or fishing along quiet shoreline coves, the lake offers diverse seasonal experiences. On-site facilities and access points are overseen by state and local natural resource agencies.
Valid freshwater sport fishing license issued by Montana Fish, Wildlife & Parks (FWP) is required for anglers age 12+. Digital license on mobile is accepted.
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 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 Smallmouth Bass, Northern Pike, Chinook Salmon, Bluegill. 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.
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.
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 Fort Peck 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, 2:07 AM MDT