Heat Advisory in effect tomorrow, then Heat Watch in effect Monday and Tuesday

Significant heat is expected for the Champlain Valley, the Connecticut River Valley, and the St Lawrence Valley in NY. Hot temperatures and high humidity will allow heat index values to reach into the upper 90s tomorrow afternoon. Please follow proper heat safety protocols. Stay hydrated, take breaks in air-conditioned rooms if possible, seek shade often, and check up on relatives and neighbors. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Burlington, Burlington International Airport (KBTV)

Lat: 44.47°NLon: 73.15°WElev: 331ft.

A Few Clouds

79°F

26°C

Humidity	35%
Wind Speed	N 7 mph
Barometer	30.09 in (1018.9 mb)
Dewpoint	49°F (9°C)
Visibility	10.00 mi
Heat Index	79°F (26°C)
Last update	21 Jun 12:54 pm EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Lewis NY

This Afternoon
High: 82 °F
Mostly Sunny
Tonight
Low: 69 °F
Slight Chance
Showers then
Showers
Likely
Sunday
High: 88 °F
Showers
Likely then
Mostly Sunny
Sunday Night
Low: 72 °F
Partly Cloudy
Monday
High: 96 °F
Hot
Monday Night
Low: 73 °F
Mostly Clear
Tuesday
High: 96 °F
Sunny then
Chance
T-storms
Tuesday Night
Low: 67 °F
Chance
T-storms then
Partly Cloudy
Wednesday
High: 81 °F
Mostly Sunny

Detailed Forecast

This Afternoon

Mostly sunny, with a high near 82. Light and variable wind.

Tonight

A chance of showers before 2am, then a chance of showers and thunderstorms between 2am and 4am, then showers likely and possibly a thunderstorm after 4am. Increasing clouds, with a low around 69. Light south wind increasing to 5 to 10 mph in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday

Showers and thunderstorms likely before noon, then a slight chance of showers and thunderstorms after 5pm. Cloudy, then gradually becoming mostly sunny, with a high near 88. Heat index values as high as 94. West wind 9 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Sunday Night

Partly cloudy, with a low around 72. West wind 3 to 5 mph.

Monday

Mostly sunny and hot, with a high near 96. West wind 3 to 8 mph.

Monday Night

Mostly clear, with a low around 73. West wind around 6 mph.

Tuesday

A 30 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 96. West wind 3 to 8 mph.

Tuesday Night

A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 67. Northwest wind 3 to 6 mph.

Wednesday

Mostly sunny, with a high near 81. Northeast wind around 6 mph.