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

79°F

26°C

Humidity	42%
Wind Speed	Vrbl 6 mph
Barometer	30.05 in (1017.6 mb)
Dewpoint	54°F (12°C)
Visibility	10.00 mi
Heat Index	79°F (26°C)
Last update	21 Jun 1:53 pm EDT

More Information:

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

Extended Forecast for

Potsdam NY

Heat Advisory June 23, 11:00am until June 24, 08:00pm

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: 71 °F
Chance
T-storms then
T-storms and
Breezy
Sunday
High: 86 °F
Showers
Likely then
Slight Chance
T-storms
Sunday Night
Low: 73 °F
Partly 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: 66 °F
Chance
T-storms then
Partly Cloudy
Wednesday
High: 81 °F
Mostly Sunny

Detailed Forecast

This Afternoon

Mostly sunny, with a high near 82. Southwest wind around 8 mph.

Tonight

Showers and thunderstorms, mainly between 3am and 5am, then showers likely and possibly a thunderstorm after 5am. Low around 71. Breezy, with a south wind 6 to 11 mph increasing to 18 to 23 mph after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday

Showers and thunderstorms likely, mainly before 10am. Cloudy, then gradually becoming mostly sunny, with a high near 86. Heat index values as high as 93. West wind 11 to 14 mph, with gusts as high as 32 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday Night

Partly cloudy, with a low around 73. Southwest wind around 6 mph.

Monday

Sunny and hot, with a high near 93. Southwest wind 8 to 15 mph.

Monday Night

Mostly clear, with a low around 75. Southwest wind 9 to 13 mph.

Tuesday

A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92. West wind 10 to 13 mph.

Tuesday Night

A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 66. West wind around 6 mph becoming calm in the evening.

Wednesday

Mostly sunny, with a high near 81. North wind 6 to 8 mph.

Wednesday Night

A 40 percent chance of showers after 8pm. Mostly cloudy, with a low around 62. Northeast wind 3 to 5 mph.

Thursday

A 40 percent chance of showers. Partly sunny, with a high near 78. North wind 6 to 8 mph.

Thursday Night

A 50 percent chance of showers. Mostly cloudy, with a low around 61. East wind around 6 mph.

Friday

A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 76. East wind 7 to 10 mph becoming south in the afternoon.