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Georgetown Lake is one of the reservoirs LakeRadar tracks in Montana. Its recorded surface area is approximately 2,818 acres. Coverage here includes an hourly and 7-day forecast, wind and gust outlook, and activity scores for boating, paddling, and swimming. Nearby alternatives include Georgetown Lake. Forecasts for Georgetown Lake come from the National Weather Service and refresh several times a day.
Updated
No active alerts for this lake as of the last check (Oct 9, 1:57 AM MDT). Alerts are re-checked automatically; see the official source for updates.
Overall Good (87/100) across 4 activities. Best right now: Boating (91/100).
How the score is calculated →Best excellent fishing window, averaging 90/100 across these hours. Wind 7 mph from the west-southwest. Dusk hours (19:00 local). Derived from the hourly forecast; official alerts are not forecast and are checked separately.
| Metric | 7a | 8a | 9a | 10a | 11a | 12p | 1p | 2p | 3p | 4p | 5p | 6p | 7p | 8p | 9p | 10p | 11p | 12a | 1a | 2a | 3a | 4a | 5a | 6a |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp (°F) | 43° | 41° | 39° | 37° | 37° | 36° | 34° | 36° | 40° | 49° | 54° | 59° | 62° | 63° | 64° | 66° | 65° | 62° | 59° | 52° | 49° | 46° | 44° | 42° |
| Wind (kts) | 6 | 5 | 6 | 6 | 7 | 7 | 9 | 10 | 14 | 14 | 14 | 16 | 16 | 16 | 15 | 13 | 11 | 8 | 6 | 6 | 8 | 8 | 8 | 6 |
| Direction | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | W | W | W | W | W | W | W | W | W | W | W | W | W |
| Gusts (kts) | 12 | 12 | 12 | 15 | 16 | 16 | 19 | 20 | 23 | 23 | 26 | 27 | 27 | 27 | 29 | 29 | 29 | 17 | 17 | 17 | 13 | 11 | 10 | 8 |
| Precip % | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% |
| Time | Temp | Wind | Gusts | Precip | Cloud | Condition |
|---|---|---|---|---|---|---|
| Fri, 1 AM MDT | 43°F | 7 mph SSW (203°) | 14 mph | 0% | 58% | Mostly Cloudy |
| Fri, 2 AM MDT | 41°F | 6 mph SSW (203°) | 14 mph | 0% | 58% | Mostly Cloudy |
| Fri, 3 AM MDT | 39°F | 7 mph SSW (203°) | 14 mph | 0% | 33% | Partly Cloudy |
| Fri, 4 AM MDT | 37°F | 7 mph SSW (203°) | 17 mph | 0% | 20% | Mostly Clear |
| Fri, 5 AM MDT | 37°F | 8 mph SSW (203°) | 18 mph | 0% | 29% | Partly Cloudy |
| Fri, 6 AM MDT | 36°F | 8 mph SSW (203°) | 18 mph | 0% | 25% | Sunny |
| Fri, 7 AM MDT | 34°F | 10 mph SSW (203°) | 22 mph | 0% | 41% | Mostly Sunny |
| Fri, 8 AM MDT | 36°F | 12 mph SW (225°) | 23 mph | 0% | 33% | Mostly Sunny |
| Fri, 9 AM MDT | 40°F | 16 mph SW (225°) | 27 mph | 0% | 12% | Sunny |
| Fri, 10 AM MDT | 49°F | 16 mph SW (225°) | 27 mph | 0% | 11% | Sunny |
| Fri, 11 AM MDT | 54°F | 16 mph SW (225°) | 30 mph | 0% | 9% | Sunny |
| Fri, 12 PM MDT | 59°F | 18 mph WSW (248°) | 31 mph | 0% | 21% | Sunny |
| Fri, 1 PM MDT | 62°F | 18 mph WSW (248°) | 31 mph | 0% | 9% | Sunny |
| Fri, 2 PM MDT | 63°F | 18 mph WSW (248°) | 31 mph | 0% | 12% | Sunny |
| Fri, 3 PM MDT | 64°F | 17 mph WSW (248°) | 33 mph | 0% | 6% | Sunny |
| Fri, 4 PM MDT | 66°F | 15 mph W (270°) | 33 mph | 0% | 10% | Sunny |
| Fri, 5 PM MDT | 65°F | 13 mph W (270°) | 33 mph | 0% | 14% | Sunny |
| Fri, 6 PM MDT | 62°F | 9 mph W (270°) | 20 mph | 0% | 32% | Partly Cloudy |
| Fri, 7 PM MDT | 59°F | 7 mph WSW (248°) | 20 mph | 0% | 46% | Partly Cloudy |
| Fri, 8 PM MDT | 52°F | 7 mph W (270°) | 20 mph | 0% | 64% | Mostly Cloudy |
| Fri, 9 PM MDT | 49°F | 9 mph W (270°) | 15 mph | 0% | 78% | Mostly Cloudy |
| Fri, 10 PM MDT | 46°F | 9 mph W (270°) | 13 mph | 0% | 63% | Mostly Cloudy |
| Fri, 11 PM MDT | 44°F | 9 mph W (270°) | 12 mph | 0% | 48% | Partly Cloudy |
| Sat, 12 AM MDT | 42°F | 7 mph W (270°) | 9 mph | 0% | 59% | Mostly Cloudy |
| Sat, 1 AM MDT | 41°F | 7 mph W (270°) | 7 mph | 1% | 68% | 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 | Today October 8, 2026 | Tonight October 8, 2026 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp (°F) | 68° | 33° | 33° | 67° | 34° | 46° | 22° | 32° | 21° | 41° | 26° | 47° | 27° | 45° |
| Wind | W 2 to 7 mph | SW 3 to 9 mph | SSW 8 mph | SW 8 to 18 mph | W 0 to 9 mph | N 0 to 12 mph | NE 8 to 15 mph | ENE 8 mph | ENE 2 to 7 mph | ENE 2 mph | SW 1 mph | WSW 2 mph | WSW 5 mph | WSW 6 mph |
| Gusts | 14 mph | 18 mph | 18 mph | 33 mph | 20 mph | 18 mph | 22 mph | 17 mph | 14 mph | 6 mph | 6 mph | 7 mph | 9 mph | 14 mph |
| Precip % | 0% | 0% | 0% | 0% | 2% | 83% | 98% | 89% | 73% | 42% | 17% | 15% | 19% | 24% |
| Forecast |
No active USGS or USACE telemetry gauge is currently mapped to Georgetown Lake. Not available from a verified source for this lake.
Good for fishing (84/100), from 5 available inputs. Supporting this: Wind 7 mph from the south-southwest. 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 (91/100), from 4 available inputs. Supporting this: Wind 7 mph from the south-southwest. 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.
Good for sailing (87/100), from 4 available inputs. Supporting this: Wind 7 mph from the SSW is workable but not ideal. 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 7 mph from the south-southwest. 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.
A versatile water resource in MT, Georgetown Lake offers expansive open waters for motorized cruising, sailing, and shoreline fishing. The lake's dynamic character across the seasons attracts outdoor enthusiasts year-round. Check current USGS streamflow gauges, water temperatures, and state regulations for the best experience.
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 Kokanee Salmon, Rainbow Trout, Brook Trout. 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 Georgetown 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, 1:57 AM MDT