Extreme Heat Across the Southern U.S.; Severe Thunderstorms and Heavy Rain in the Northern Plains and Upper Midwest

Dangerous heat will remain across portions of the southern U.S. through the weekend. A heat wave over the Southwest will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Severe thunderstorms will produce damaging winds and heavy rainfall over portions of the northern/central Plains into the mid/upper-Mississippi Valleys today. Read More >

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Mostly Cloudy

74°F

23°C

Humidity	79%
Wind Speed	NE 13 mph
Barometer	29.78 in (1008.3 mb)
Dewpoint	67°F (19°C)
Visibility	10.00 mi
Last update	30 Jul 1:56 pm EDT

More Information:

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

Extended Forecast for

Terryville NY

This Afternoon
High: 75 °F
Chance
Showers
Tonight
Low: 66 °F
Chance
Showers then
Mostly Cloudy
Friday
High: 82 °F
Mostly Sunny
Friday Night
Low: 67 °F
Partly Cloudy
Saturday
High: 85 °F
Mostly Sunny
Saturday Night
Low: 69 °F
Mostly Cloudy
Sunday
High: 83 °F
Mostly Cloudy
Sunday Night
Low: 68 °F
Chance
Showers
Monday
High: 83 °F
Chance
Showers then
Chance
T-storms

Detailed Forecast

This Afternoon

A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 75. North wind around 9 mph.

Tonight

A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 11pm. Mostly cloudy, with a low around 66. Light northwest wind. Chance of precipitation is 30%.

Friday

Mostly sunny, with a high near 82. West wind 5 to 7 mph.

Friday Night

Partly cloudy, with a low around 67. Southwest wind 3 to 6 mph.

Saturday

Mostly sunny, with a high near 85. Calm wind becoming south 5 to 8 mph in the afternoon.

Saturday Night

Mostly cloudy, with a low around 69.

Sunday

Mostly cloudy, with a high near 83.

Sunday Night

A 40 percent chance of showers. Mostly cloudy, with a low around 68.

Monday

A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 50%.

Monday Night

A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Partly cloudy, with a low around 66. Chance of precipitation is 30%.

Tuesday

Mostly sunny, with a high near 83.

Tuesday Night

Partly cloudy, with a low around 67.

Wednesday

Mostly sunny, with a high near 84.