Dangerous Heat in the West; Coastal Flooding & High Rip Current Risk through the Weekend on the East Coast; Flash Flooding Concerns in the Southeast and Southwest
A dangerous, record heat wave continues across portions of the West through Tuesday. High rip current risk and dangerous surf continue through the weekend. There are flash flooding concerns through the weekend for portions of the Southeast and Southwest. Read More >
Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Fair
69°F
21°C
| Humidity | 70% |
| Wind Speed | S 7 mph |
| Barometer | 30.05 in (1017.4 mb) |
| Dewpoint | 59°F (15°C) |
| Visibility | 10.00 mi |
| Last update | 24 Aug 12:56 am EDT |
Extended Forecast for
Lake Ronkonkoma NY
Overnight
Low: 65 °F
Partly Cloudy
Sunday
High: 80 °F
Mostly Sunny
Sunday Night
Low: 67 °F
Mostly Cloudy
then Chance
ShowersMonday
High: 83 °F
Chance
ShowersMonday Night
Low: 63 °F
Partly Cloudy
Tuesday
High: 80 °F
Sunny
Tuesday Night
Low: 60 °F
Partly Cloudy
Wednesday
High: 77 °F
Mostly Sunny
Wednesday Night
Low: 59 °F
Mostly Clear
Detailed Forecast
Overnight
Partly cloudy, with a low around 65. South wind around 7 mph.
Sunday
Mostly sunny, with a high near 80. South wind 6 to 11 mph.
Sunday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 67. South wind 3 to 7 mph.
Monday
A 30 percent chance of showers, mainly before 2pm. Partly sunny, with a high near 83. Light south wind becoming southwest 5 to 9 mph in the morning.
Monday Night
Partly cloudy, with a low around 63. Northwest wind around 6 mph.
Tuesday
Sunny, with a high near 80.
Tuesday Night
Partly cloudy, with a low around 60.
Wednesday
Mostly sunny, with a high near 77.
Wednesday Night
Mostly clear, with a low around 59.
Thursday
Sunny, with a high near 78.
Thursday Night
Partly cloudy, with a low around 62.
Friday
Mostly sunny, with a high near 79.
Friday Night
Partly cloudy, with a low around 61.
Saturday
Mostly sunny, with a high near 78.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Lake Ronkonkoma NY
40.83°N 73.11°W (Elev. 98 ft)
40.83°N 73.11°W (Elev. 98 ft)
9:15 pm EDT Aug 23, 2025
1am EDT Aug 24, 2025-6pm EDT Aug 30, 2025
Additional Resources
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