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

Current conditions at

Massena, Massena International-Richards Field (KMSS)

Lat: 44.94°NLon: 74.85°WElev: 217ft.

Fair

66°F

19°C

Humidity	73%
Wind Speed	SW 3 mph
Barometer	30.09 in (1019.0 mb)
Dewpoint	57°F (14°C)
Visibility	10.00 mi
Last update	21 Jun 8:53 am EDT

More Information:

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

Extended Forecast for

6 Miles WNW Lisbon NY

Heat Advisory June 22, 11:00am until June 22, 08:00pm

Click here for hazard details and duration

Heat Advisory

Today
High: 82 °F
Mostly Sunny
Tonight
Low: 70 °F
Chance
Showers then
Showers
Likely
Sunday
High: 88 °F
Chance
Showers then
Slight Chance
T-storms
Sunday Night
Low: 72 °F
Partly Cloudy
Monday
High: 92 °F
Hot
Monday Night
Low: 75 °F
Mostly Clear
Tuesday
High: 92 °F
Sunny then
Chance
T-storms
Tuesday Night
Low: 64 °F
Chance
T-storms then
Partly Cloudy
Wednesday
High: 78 °F
Mostly Sunny

Detailed Forecast

Today

Mostly sunny, with a high near 82. Southwest wind 3 to 7 mph.

Tonight

A chance of showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 70. South wind 6 to 11 mph increasing to 13 to 18 mph after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Sunday

A chance of showers and thunderstorms before noon, then a slight chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 88. Heat index values as high as 96. Southwest wind 9 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Sunday Night

Partly cloudy, with a low around 72. Southwest wind around 6 mph.

Monday

Sunny and hot, with a high near 92. Southwest wind 8 to 14 mph.

Monday Night

Mostly clear, with a low around 75. Southwest wind 8 to 10 mph, with gusts as high as 20 mph.

Tuesday

A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92. West wind around 9 mph.

Tuesday Night

A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 64. Northwest wind around 5 mph becoming light and variable.

Wednesday

Mostly sunny, with a high near 78. North wind around 7 mph.

Wednesday Night

A 40 percent chance of showers after 8pm. Mostly cloudy, with a low around 62. Light northeast wind.

Thursday

A 40 percent chance of showers. Mostly cloudy, with a high near 76. Northeast wind around 7 mph.

Thursday Night

A 50 percent chance of showers. Mostly cloudy, with a low around 62. East wind around 6 mph.

Friday

Showers likely. Mostly cloudy, with a high near 76. East wind around 7 mph. Chance of precipitation is 60%.