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Official National Weather Service (NWS) point forecast and real-time wind conditions for Hebgen Lake (Montana). 24-hour hour-by-hour wind timelines, peak gusts, watercraft recreation safety thresholds, and 7-day marine outlook.
Winter Weather Advisory issued October 9 at 11:29AM MDT until October 12 at 6:00AM MDT by NWS Great Falls MT
Today: High 68°F · Low 49°F
Peak gusts: 15 mph · Lake surface chop expected
Humidity: 33% · Barometer: 29.96 inHg
USGS water monitoring available for Hebgen Lake.
Winter Weather Advisory issued October 9 at 11:29AM MDT until October 12 at 6:00AM MDT by NWS Great Falls MT
Very Poor / Avoid for boating (27/100), from 4 available inputs. Supporting this: 0% chance of precipitation. Working against it: Active severe alert: Red Flag Warning. The forecast mentions thunderstorms, which carries a risk penalty. 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.
Poor for fishing (48/100), from 5 available inputs. Supporting this: 0% chance of precipitation. Sky is clear (2% cloud cover). The forecast mentions thunderstorms, which carries a risk penalty. 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.
Very Poor / Avoid for kayaking (29/100), from 5 available inputs. Supporting this: 0% chance of precipitation. Air temperature 59°F. Working against it: Active severe alert: Red Flag Warning. The forecast mentions thunderstorms, which carries a risk penalty. Confidence is high (90%).
Water temperature is not available from a verified source for this lake. No swimming score is shown without it. Supporting this: 0% chance of precipitation. Wind 16 mph from the south-southwest. Working against it: Active severe alert: Red Flag Warning. The forecast mentions thunderstorms, which carries a risk penalty. Not available from a verified source for this lake: water temperature.
| Time | Air Temp | Wind (mph) | Direction | Peak Gusts | Rain Chance | Sky & Conditions |
|---|---|---|---|---|---|---|
| 12 PM | 59°F | 16 mph | SW | ⚡ 23 mph | 0% | Sunny |
| 1 PM | 64°F | 18 mph | SW | ⚡ 25 mph | 0% | Sunny |
| 2 PM | 66°F | 22 mph | SW | ⚡ 31 mph | 0% | Sunny |
| 3 PM | 67°F | 23 mph | SW | ⚡ 32 mph | 0% | Sunny |
| 4 PM | 68°F | 23 mph | SW | ⚡ 32 mph | 0% | Sunny |
| 5 PM | 65°F | 21 mph | SW | ⚡ 30 mph | 0% | Sunny |
| 6 PM | 62°F | 20 mph | SW | ⚡ 28 mph | 2% | Mostly Clear |
| 7 PM | 59°F | 18 mph | SW | ⚡ 28 mph | 2% | Partly Cloudy |
| 8 PM | 54°F | 17 mph | SW | ⚡ 29 mph | 2% | Mostly Cloudy |
| 9 PM | 53°F | 16 mph | SW | ⚡ 27 mph | 2% | Mostly Cloudy |
| 10 PM | 50°F | 15 mph | SW | ⚡ 24 mph | 2% | Mostly Cloudy |
| 11 PM | 49°F | 14 mph | SW | ⚡ 20 mph | 2% | Mostly Cloudy |
| 12 AM | 51°F | 13 mph | S | ⚡ 17 mph | 7% | Mostly Cloudy |
| 1 AM | 49°F | 12 mph | S | ⚡ 16 mph | 8% | Mostly Cloudy |
| 2 AM | 49°F | 12 mph | S | ⚡ 16 mph | 9% | Mostly Cloudy |
| 3 AM | 52°F | 12 mph | S | ⚡ 16 mph | 20% | Mostly Cloudy |
| 4 AM | 51°F | 12 mph | S | ⚡ 16 mph | 26% | Mostly Cloudy |
| 5 AM | 50°F | 12 mph | S | ⚡ 16 mph | 29% | Mostly Cloudy |
| 6 AM | 49°F | 12 mph | S | ⚡ 16 mph | 61% | Slight Chance Light Rain |
| 7 AM | 48°F | 13 mph | S | ⚡ 17 mph | 46% | Slight Chance Light Rain |
| 8 AM | 47°F | 15 mph | S | ⚡ 21 mph | 44% | Chance Light Rain |
| 9 AM | 47°F | 16 mph | S | ⚡ 23 mph | 38% | Mostly Cloudy |
| 10 AM | 48°F | 17 mph | S | ⚡ 24 mph | 40% | Chance Light Rain |
| 11 AM | 50°F | 18 mph | S | ⚡ 25 mph | 41% | Chance Light Rain |
Mirror-like to gentle rippled water. Optimal conditions for paddleboarding, kayaking, swimming, and beginner water skiing or wakeboarding.
Pleasant breeze with small wavelets. Great for sailing, pleasure cruising, pontoon boats, and trolling for trout and bass.
Moderate waves with whitecaps likely. Requires skilled boat handling; kayaks, canoes, and stand-up paddleboards should stay close to sheltered bays.
Steep waves, cold spray, and hazardous open water. Avoid small craft voyages. Always check official National Weather Service lake wind advisories.
Sunny. High near 68, with temperatures falling to around 65 in the afternoon. South southwest wind 12 to 23 mph, with gusts as high as 32 mph.
Mostly cloudy. Low around 39, with temperatures rising to around 50 overnight. South southwest wind 12 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 30%.
A chance of rain before noon, then showers and thunderstorms. Cloudy. High near 57, with temperatures falling to around 48 in the afternoon. South southwest wind 12 to 21 mph, with gusts as high as 29 mph. Chance of precipitation is 70%.
Showers and thunderstorms before 9pm, then rain. Cloudy, with a low around 34. South wind 7 to 12 mph, with gusts as high as 18 mph. Chance of precipitation is 90%.
Rain. Cloudy, with a high near 40. Northeast wind 5 to 8 mph. Chance of precipitation is 100%.
Rain before midnight, then rain and snow between midnight and 3am, then rain and snow. Cloudy, with a low around 31. Northeast wind 5 to 12 mph. Chance of precipitation is 100%. New snow accumulation of less than half an inch possible.
Rain and snow. Mostly cloudy, with a high near 51. South southeast wind around 3 mph.
A chance of rain before 9pm, then a chance of rain and snow. Mostly cloudy, with a low around 31. South wind around 3 mph.
A chance of snow before noon, then a chance of rain. Mostly cloudy, with a high near 51.
A chance of rain and snow. Mostly cloudy, with a low around 29.
A chance of snow. Partly sunny, with a high near 48.
A chance of snow. Mostly cloudy, with a low around 27. New snow accumulation of less than one inch possible.
A chance of snow before noon. Partly sunny, with a high near 47. Little or no snow accumulation expected.
Partly cloudy, with a low around 24.
Hebgen Lake currently reports 57°F with wind velocity near 5 mph from the SE. Atmospheric forecasts and 24-hour hour-by-hour wind timelines are updated hourly from the National Weather Service gridpoint matching the lake's coordinates.
At Hebgen Lake and surrounding mountain valleys, diurnal heating of the surrounding terrain causes strong thermal pressure differentials known locally as afternoon breezes (such as the Washoe Zephyr at Lake Tahoe). Wind speeds typically peak between 1:00 PM and 5:00 PM before calming near sunset.
For stand-up paddleboarding (SUP), canoeing, and light kayaks, winds under 7 mph (light breeze) offer the safest, glassiest surface conditions. Between 8–14 mph, small wavelets develop, suitable for sailboats and powerboats. Winds exceeding 15 mph create steep whitecaps and rapid drift; winds over 21 mph warrant small craft warnings.
All weather and wind telemetry is fetched directly from the National Weather Service (NOAA - WFO TFX) high-resolution numerical point-forecast API. LakeRadar uses the official gridpoint for Hebgen Lake without artificial smoothing or third-party estimates.
Yes. Live hydrological sensor readings, 30-day elevation histories, full-pool benchmarks, and USGS station provenance are available on our dedicated Hebgen Lake Water Level & Temperature page.
View Hebgen Lake Water Level & Temperature →