National Weather Service United States Department of Commerce
WFO BTV Lake Champlain Forecasts
Recreational Forecast
National Weather Service Burlington VT
231 PM EDT Sat Oct 21 2017

.The Lake Champlain Forecast...

.TONIGHT...South winds 5 to 15 knots. Waves 1 to 2 feet. 
.SUNDAY...South winds 10 to 20 knots. Waves 1 to 2 feet. 
.SUNDAY NIGHT...South winds 10 to 20 knots. Waves 1 to 2 feet,
building to 1 to 3 feet after midnight. 
.MONDAY...South winds 10 to 20 knots, increasing to 15 to 25 knots
in the afternoon. Waves 1 to 3 feet, building to 2 to 4 feet in the

The ultraviolet index for Sunday will be a 3. This is in the moderate

Latest Level and Temperature Data from Around Lake Champlain
                                Level           Temperature
USGS gage at Rouses Point NY    94.28 feet
USGS gage at Burlington VT      94.33 feet      59 degrees
King Street Ferry Dock          94.36 feet      55 degrees
USGS gage at Port Henry NY      94.41 feet
Colchester Reef                                 59 degrees
Diamond Island                                  56 degrees

Graphical Lake Forecast Lake Point Forecasts



Current Conditions

Last Updated on 7:00 PM EDT Sat Oct 21 2017
Location Tmp
Water Temp
Colchester Reef65S11G1359.1N/A
Diamond Island65S2G456.3N/A
Burton Island65SE2G3N/AN/A
Inland SeaN/AN/AN/AN/A
Valcour Island56S759.6N/A
Current Lake Champlain Readings
Lake data for 10/21/2017 from King St. Ferry dock
Level: 94.36 ft. Temp: 55 F

60 Day Lake Level & Temperature Plots
Current Year Lake Level & Temperature Plots


USGS Gage at Rouse's Point, NY

(near real-time)

USGS Gage at Burlington, VT

(near real-time)

USGS Gage at Port Henry, NY

(near real-time)
USGS Gage at Whitehall, NY

(near real-time)


Alternate USGS Links

Historical Lake Champlain Yearly Graphs
Graphs updated daily
Lake LevelLake Temperature


The Science Behind the Creation of the Lake Champlain Forecast


The National Weather Service in Burlington produces the Lake Champlain recreational forecast from April through December, twice per day at approximately 4 am and 4 pm, with updates made when weather conditions become unrepresentative. Forecasts are valid for either 36 or 48 hours dependent on issuance time, and predict winds, significant wave heights, sensible weather, and associated restrictions to visibility if applicable over the open lake waters. Text, graphical and "point and click" forecasts are available to the user. In addition to these official forecasts, the NWS in Burlington produces a Lake Champlain model forecast which is run 4 times daily. These "model produced" forecasts are created automatically, with no human involvement and predict winds and wave heights only. They have been shown to predict these elements reasonably well under most conditions, and provide an extra source of information to those wanting access to more data. However, having no human involvement should throw caution to the wind and during most situations boaters should refer to the official NWS forecast for the most accurate and representative information. Click here for answers to some frequently asked questions (FAQs) regarding the Lake Champlain Recreational Forecast process.


Lake Champlain Ice Coverage


As of mid December 2016 Lake Champlain is beginning to develop surface ice. From now until the end of the 2016-2017 ice season images will be regularly posted on this page to give winter recreational enthusiasts using the lake a rough idea of ice coverage. The imagery is MODIS 250 meter resolution data from NOAA's Terra and Aqua polar orbiting satellites on clear or predominantly sunny days and will show approximate ice coverage on the lake. The times of the images vary, but usually are within an hour or two of local noon when the satellite passes occur. Please note that ice may be clear or opaque in the pictures with a few apparently open water areas possibly having a thin, clear cover of ice. Thus this page is intended as a reference source only, and those planning winter activities on the lake should make use of additional resources to determine more precise ice coverage and thickness in their area of interest. 



Lake Champlain Nautical Charts



Other Champlain Information


WFO BTV Higher Summits Forecasts
Recreational Forecast
National Weather Service Burlington VT
231 PM EDT Sat Oct 21 2017

.The Higher Summits Forecast for Vermont and Northern New York...

.TONIGHT...Partly cloudy. Lows in the mid 40s. West winds 10 to
20 mph. 
.SUNDAY...Partly sunny. Highs in the low to mid 60s. Southwest 
winds 10 to 20 mph. 
.SUNDAY NIGHT...Mostly clear. Lows in the upper 40s. South winds
15 to 30 mph, becoming southwest at 25 to 40 mph after midnight. 
.MONDAY...Partly sunny. Highs in the upper 50s to lower 60s. 
Southwest winds 25 to 40 mph, becoming south at 15 to 30 mph in 
the afternoon.

Mountain Point Forecasts

*** Higher summits forecast is valid for 3000 to 5000 foot peaks *** 

During the traditional Mud Season (approximately mid-April to Memorial Day), the Vermont Department of Forests and Parks, and New York's Department of Environmental Conservation closes trails, or institutes a voluntary closure, asking hikers to refrain from traveling. This is done to protect sensitive alpine vegetation and trail erosion.

Mount Mansfield Current Conditions

6:05 PM EDT Sat Oct 21 2017
Temperature: 56F
Wind Direction: 275°
Wind Speed: 24 mph
Wind Gust: 28 mph

Click here for more data
Regional Mesonet Profile

Mount Mansfield Daily Summary
Daily Hydrometeorological Data
National Weather Service Burlington VT
524 PM EDT Sat Oct 21 2017

Station            Precip   Temperature   Present         Snow
                   24 Hrs   Max Min Cur   Weather     New Total SWE

Mount Mansfield     0.00    59  43  58                           

(Observations taken daily around 4pm at the WCAX transmitter atop Mount Mansfield.)