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Fresno Reservoir is a reservoir located in Montana. Its recorded surface area is approximately 5,760 acres. Coverage here includes an hourly and 7-day forecast, wind and gust outlook, water readings, and activity scores for boating, paddling, and swimming. Water data on this page comes from a mapped monitoring station near the lake. This page combines the live forecast, wind, and conditions for Fresno Reservoir so you can plan a visit.
Updated
No active alerts for this lake as of the last check (Oct 11, 2:30 AM MDT). Alerts are re-checked automatically; see the official source for updates.
Overall Fair (71/100) across 4 activities. Best right now: Sailing (84/100).
How the score is calculated →Best good fishing window, averaging 75/100 across these hours. Wind 5 mph from the north-northeast. Morning hours (10:00 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) | 32° | 32° | 31° | 31° | 31° | 29° | 31° | 33° | 35° | 36° | 36° | 37° | 38° | 38° | 38° | 38° | 38° | 35° | 34° | 33° | 33° | 32° | 32° | 32° |
| Wind (kts) | 9 | 9 | 9 | 9 | 10 | 10 | 11 | 11 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 12 | 11 | 11 | 12 | 11 | 11 | 11 | 10 | 10 |
| Direction | NE | N | NE | NE | NE | NE | NE | NE | NE | NE | NE | NE | NE | NE | NE | NE | NE | NE | NE | NE | NE | NE | NE | NE |
| Gusts (kts) | 14 | 14 | 14 | 14 | 14 | 15 | 15 | 16 | 17 | 17 | 18 | 19 | 19 | 19 | 19 | 19 | 18 | 18 | 17 | 17 | 17 | 16 | 15 | 15 |
| Precip % | 96% | 86% | 86% | 90% | 94% | 94% | 95% | 94% | 85% | 78% | 95% | 94% | 81% | 71% | 72% | 73% | 71% | 79% | 89% | 93% | 96% | 96% | 94% | 91% |
| Time | Temp | Wind | Gusts | Precip | Cloud | Condition |
|---|---|---|---|---|---|---|
| Sun, 2 AM MDT | 32°F | 10 mph NNE (23°) | 16 mph | 96% | 98% | Light Rain |
| Sun, 3 AM MDT | 32°F | 10 mph N (0°) | 16 mph | 86% | 93% | Rain And Snow |
| Sun, 4 AM MDT | 31°F | 10 mph NNE (23°) | 16 mph | 86% | 95% | Rain And Snow |
| Sun, 5 AM MDT | 31°F | 10 mph NNE (23°) | 16 mph | 90% | 94% | Light Rain |
| Sun, 6 AM MDT | 31°F | 12 mph NNE (23°) | 16 mph | 94% | 96% | Light Rain |
| Sun, 7 AM MDT | 29°F | 12 mph NE (45°) | 17 mph | 94% | 100% | Light Snow |
| Sun, 8 AM MDT | 31°F | 13 mph NE (45°) | 17 mph | 95% | 100% | Rain And Snow |
| Sun, 9 AM MDT | 33°F | 13 mph NE (45°) | 18 mph | 94% | 97% | Rain And Snow |
| Sun, 10 AM MDT | 35°F | 14 mph NE (45°) | 20 mph | 85% | 93% | Rain And Snow |
| Sun, 11 AM MDT | 36°F | 14 mph NE (45°) | 20 mph | 78% | 93% | Rain And Snow |
| Sun, 12 PM MDT | 36°F | 14 mph NE (45°) | 21 mph | 95% | 100% | Rain And Snow |
| Sun, 1 PM MDT | 37°F | 14 mph NE (45°) | 22 mph | 94% | 96% | Rain And Snow |
| Sun, 2 PM MDT | 38°F | 14 mph NE (45°) | 22 mph | 81% | 93% | Rain And Snow |
| Sun, 3 PM MDT | 38°F | 13 mph NE (45°) | 22 mph | 71% | 96% | Rain And Snow Likely |
| Sun, 4 PM MDT | 38°F | 13 mph NE (45°) | 22 mph | 72% | 96% | Rain And Snow Likely |
| Sun, 5 PM MDT | 38°F | 14 mph NE (45°) | 22 mph | 73% | 96% | Rain And Snow Likely |
| Sun, 6 PM MDT | 38°F | 13 mph NE (45°) | 21 mph | 71% | 97% | Rain And Snow Likely |
| Sun, 7 PM MDT | 35°F | 13 mph NE (45°) | 21 mph | 79% | 96% | Rain And Snow |
| Sun, 8 PM MDT | 34°F | 14 mph NE (45°) | 20 mph | 89% | 96% | Rain And Snow |
| Sun, 9 PM MDT | 33°F | 13 mph NE (45°) | 20 mph | 93% | 97% | Rain And Snow |
| Sun, 10 PM MDT | 33°F | 13 mph NE (45°) | 20 mph | 96% | 98% | Rain And Snow |
| Sun, 11 PM MDT | 32°F | 13 mph NE (45°) | 18 mph | 96% | 98% | Rain And Snow |
| Mon, 12 AM MDT | 32°F | 12 mph NE (45°) | 17 mph | 94% | 97% | Rain And Snow |
| Mon, 1 AM MDT | 32°F | 12 mph NE (45°) | 17 mph | 91% | 96% | Rain And Snow |
| Mon, 2 AM MDT | 31°F | 10 mph NE (45°) | 15 mph | 90% | 97% | Rain And Snow |
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 11, 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 | Thursday Night October 15, 2026 | Friday October 16, 2026 | Friday Night October 16, 2026 | Saturday October 17, 2026 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp (°F) | 28° | 39° | 25° | 43° | 22° | 51° | 22° | 57° | 28° | 56° | 25° | 60° | 31° | 69° |
| Wind | NNE 10 mph | NE 14 mph | NE 7 to 14 mph | ENE 2 to 7 mph | S 5 mph | SW 3 to 8 mph | SW 6 mph | SSW 5 to 9 mph | WSW 9 mph | NW 10 mph | WNW 2 to 7 mph | SSE 2 to 6 mph | SSE 7 mph | SW 9 to 16 mph |
| Gusts | 16 mph | 22 mph | 21 mph | 12 mph | 8 mph | 13 mph | 10 mph | 17 mph | 15 mph | 17 mph | 12 mph | 12 mph | 12 mph | 22 mph |
| Precip % | 96% | 95% | 96% | 75% | 2% | 0% | 0% | 1% | 6% | 3% | 1% | 1% | 0% | 0% |
| Forecast |
No active USGS or USACE telemetry gauge is currently mapped to Fresno Reservoir. Not available from a verified source for this lake.
Fair for fishing (59/100), from 5 available inputs. Supporting this: Wind 10 mph from the north-northeast. Sky is overcast (98% cloud cover). Working against it: 96% chance of precipitation is likely. Air temperature 32°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.
Good for boating (76/100), from 4 available inputs. Supporting this: No active official alerts for this lake. Wind 10 mph from the north-northeast. Working against it: 96% chance of precipitation is likely. 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.
Good for sailing (84/100), from 4 available inputs. Supporting this: Wind 10 mph from the NNE is in the preferred sailing range. No active official alerts for this lake. Working against it: 96% chance of precipitation is likely. Not available from a verified source for this lake: visibility. Confidence is high (88%).
Fair for kayaking (74/100), from 5 available inputs. Supporting this: Wind 10 mph from the north-northeast. No active official alerts for this lake. Working against it: 96% chance of precipitation is likely. Air temperature 32°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 MT Parks & Wildlife Authority. Public boaters should verify seasonal launch water levels, gate hours, and daily vehicle/vessel fees before traveling.
Fresno Reservoir in MT offers a welcoming freshwater setting for recreational boaters, dedicated anglers, and shoreline explorers. Its waters present diverse fishing opportunities alongside scenic vistas of the surrounding terrain. Public access facilities and shoreline parklands 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. Active freshwater angling for native and stocked gamefish. 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.
NWS API Web Service · License: U.S. Government work · Attribution: Data provided by the National Weather Service (api.weather.gov)
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 Fresno Reservoir 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 11, 2:30 AM MDT