Continuous Heavy Rainfall And Threat For Flooding Over The Western Gulf Coast And Midwest; Excessive Heat Widespread Across The Desert Southwest

A very slow moving disturbance will deliver continuous tropical heavy rainfall and flooding along the Texas Gulf Coast into Louisiana. Additional heavy rainfall will be possible across the Midwest and Ohio Valley, from a circulation and stalled frontal zone. Very hot temperatures exceeding 110 degrees are likely over southern California, Nevada and Arizona, which includes Las Vegas and Phoenix. Read More >

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Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Overcast

76°F

24°C

Humidity	58%
Wind Speed	SW 7 mph
Barometer	29.84 in (1010.6 mb)
Dewpoint	60°F (16°C)
Visibility	10.00 mi
Heat Index	78°F (26°C)
Last update	20 Jun 2:56 pm EDT

More Information:

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

Extended Forecast for

Lake Ronkonkoma NY

Tonight

Heavy Rain
Low: 64 °F
Thursday

Chance
Showers then
Mostly Sunny
High: 80 °F
Thursday
Night

Mostly Clear
Low: 60 °F
Friday

Slight Chance
T-storms
High: 77 °F
Friday
Night

Chance
T-storms
Low: 60 °F
Saturday

T-storms
Likely
High: 76 °F
Saturday
Night

Chance
T-storms and
Patchy Fog
Low: 66 °F
Sunday

Patchy Fog
then Partly
Sunny
High: 83 °F
Sunday
Night

Mostly Cloudy
then Patchy
Fog
Low: 64 °F

Detailed Forecast

Tonight

A chance of showers, then showers likely and possibly a thunderstorm after midnight. Some of the storms could produce heavy rain. Cloudy, with a low around 64. South wind 5 to 10 mph becoming light after midnight. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

Thursday

A 50 percent chance of showers, mainly before 10am. Cloudy, then gradually becoming mostly sunny, with a high near 80. North wind 7 to 9 mph.

Thursday Night

Mostly clear, with a low around 60. East wind 6 to 8 mph.

Friday

A 20 percent chance of showers and thunderstorms after 11am. Increasing clouds, with a high near 77. East wind 9 to 11 mph.

Friday Night

A 40 percent chance of showers and thunderstorms. Cloudy, with a low around 60. East wind 8 to 10 mph.

Saturday

Showers and thunderstorms likely. Cloudy, with a high near 76. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday Night

A 30 percent chance of showers and thunderstorms before 3am. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 66.

Sunday

Patchy fog before 9am. Otherwise, partly sunny, with a high near 83.

Sunday Night

Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 64.

Monday

A 30 percent chance of showers and thunderstorms. Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 80.

Monday Night

Mostly cloudy, with a low around 59.

Tuesday

Mostly sunny, with a high near 79.