National Weather Service United States Department of Commerce

A Flash Flood Watch is in Effect for portions of the North Country

A Flash Flood Watch has been issued for Northern Adirondacks into parts of Central and Northern Vermont from 11 AM to 11 PM this evening. Heavy rainfall of 1 to 2 inches has already occurred with the potential for additional showers and thunderstorms through this evening. Localized flash flooding from high rainfall rates, along with isolated gusty winds and small hail are possible too. Read More >

WFO BTV Lake Champlain Forecasts
Recreational Forecast
National Weather Service Burlington VT
406 PM EDT Fri Jun 23 2017

.The Lake Champlain Forecast...

.TONIGHT...South to southwest winds around 5 knots, becoming west
after midnight. Waves less than 1 foot. Showers and thunderstorms
likely until midnight, then a chance of showers with a slight 
chance of thunderstorms after midnight. Visibility occasionally
reduced 3 to 5 miles, mainly this evening. Some thunderstorms may
produce gusty winds and heavy rainfall this evening. 
.SATURDAY...West winds 5 to 10 knots. Waves less than 1 foot. A 
chance of showers with a slight chance of thunderstorms, mainly in
the afternoon across northern portions of the lake. Visibility 
generally unrestricted.
.SATURDAY NIGHT...West winds 5 to 10 knots, becoming south to southwest
around 5 knots after midnight. Waves less than 1 foot. A chance 
of showers with a slight chance of thunderstorms in the evening. 
Visibility generally unrestricted.
.SUNDAY...Southwest winds 5 to 10 knots. Waves less than 1 foot. 
A chance of showers in the morning, then showers likely in the 
afternoon. Visibility occasionally reduced to 3 to 5 miles. 

Winds and waves may be locally higher in the vicinity of thunderstorms.

The ultraviolet index for Saturday will be a 9. This is in the very high

Latest Level and Temperature Data from Around Lake Champlain
                                Level           Temperature
USGS gage at Rouses Point NY    96.98 feet
USGS gage at Burlington VT      97.06 feet      64 degrees
King Street Ferry Dock          97.00 feet      63 degrees
USGS gage at Port Henry NY      97.09 feet
Colchester Reef                                 62 degrees
Diamond Island                                  58 degrees

Graphical Lake Forecast Lake Point Forecasts



Current Conditions

Last Updated on 4:00 PM EDT Fri Jun 23 2017
Location Tmp
Water Tmp
Colchester Reef7189S11G12997.062.6
Diamond Island7681S9G14980.058.9
Burton Island7482N0G1996.0N/A
Current Lake Champlain Readings
Lake data for 6/23/2017 from King St. Ferry dock
Level: 97.00 ft. Temp: 63 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
406 PM EDT Fri Jun 23 2017

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

.TONIGHT...Summits in and out of clouds until midnight, then becoming
obscured in clouds. Showers likely with a slight chance of 
thunderstorms until midnight, then a chance of showers and a 
slight chance of thunderstorms after midnight. Some thunderstorms 
may produce gusty winds and heavy rainfall early. Lows 55 to 60. 
West winds 15 to 30 mph. 
.SATURDAY...Summits obscured in clouds in the morning, then becoming
partly sunny. A slight chance of showers and thunderstorms in the
morning, then chance of showers with a slight chance of
thunderstorms in the afternoon, mainly north. Highs in the 60s. 
West winds 15 to 25 mph. 
.SATURDAY NIGHT...Partly cloudy until midnight, then becoming mostly
cloudy. Lows in the upper 40s to lower 50s. West winds 20 to 35 
.SUNDAY...Mostly cloudy. A chance of showers. Highs in the mid 50s
to lower 60s. West winds 10 to 20 mph. 

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

3:05 PM EDT Fri Jun 23 2017
Temperature: 63F
Wind Direction: 247°
Wind Speed: 22 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
427 PM EDT Fri Jun 23 2017

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

Mount Mansfield     1.67    64  52  62   Cloudy                  

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