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

77°F

25°C

Humidity	42%
Wind Speed	W 6 mph
Barometer	30.08 in (1018.7 mb)
Dewpoint	52°F (11°C)
Visibility	10.00 mi
Heat Index	78°F (26°C)
Last update	21 Jun 12:53 pm EDT

More Information:

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

Extended Forecast for

2 Miles WNW Winthrop NY

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

Click here for hazard details and duration

Heat Advisory

This Afternoon
High: 82 °F
Mostly Sunny
Tonight
Low: 70 °F
Chance
Showers then
Showers
Sunday
High: 87 °F
Showers
Likely then
Slight Chance
Showers
Sunday Night
Low: 73 °F
Mostly Cloudy
Monday
High: 93 °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: 79 °F
Mostly Sunny

Detailed Forecast

This Afternoon

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

Tonight

Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2am. Low around 70. South wind 5 to 10 mph increasing to 11 to 16 mph after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Sunday

Showers and thunderstorms likely before 11am, then a slight chance of showers between 11am and 1pm. Mostly cloudy, with a high near 87. Heat index values as high as 94. Southwest wind 10 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday Night

Mostly cloudy, with a low around 73. Southwest wind around 7 mph.

Monday

Sunny and hot, with a high near 93. Southwest wind 8 to 14 mph.

Monday Night

Mostly clear, with a low around 75. Southwest wind 9 to 11 mph.

Tuesday

A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92. West wind around 11 mph.

Tuesday Night

A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 64. West wind around 6 mph becoming light and variable in the evening.

Wednesday

Mostly sunny, with a high near 79. 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. Partly sunny, with a high near 76. Northeast wind around 7 mph.

Thursday Night

Showers likely. Mostly cloudy, with a low around 62. East wind around 6 mph. Chance of precipitation is 60%.

Friday

Showers likely. Mostly cloudy, with a high near 76. East wind 7 to 9 mph. Chance of precipitation is 60%.