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  • Coastal Flood Statement

    Starts in 21 min

    When
    Early Saturday morning.
    Where
    Southern Nassau County.

    Issued for this forecast zone · National Weather Service Upton NY

    What, impacts and precautions

    What

    Up to one half foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline.

    Impacts

    Brief minor flooding of the more vulnerable locations near the waterfront and shoreline.

    Precautionary actions

    Do not drive through flooded roadways.

    Areas: Southern Nassau

    See it on weather.gov (opens in a new tab)

Observed 4:10 AM EDT at KJFK

South Valley Stream, NY weather

Clear and 45°7°.

Today: low 43°6° (likely 42°6° to 43°6°), high 62°17° (likely 61°16° to 62°17°).

One forecast only

Now 45°7°

Clear

Wind
3 mph5 km/h
From the north. 35–5 mph8 km/h through 4 PM
Dew point
39°4°
Comfortable
Air quality
49Good
PM2.5 (fine particles) · tomorrow moderate

Next 48 hours

Good hours for
  • Low 44°7° today at 7 AM
  • Above 50°10° today by 9 AM
  • High 62°17° today at 2 PM
  1. TonightNear 46°8°
  2. This morningUp to 58°14° by 11 AM
  3. This afternoonNear 61°16°
  4. TonightDown to 46°8° by 4 AM
  5. Tomorrow morningUp to 57°14° by 11 AM
  6. Tomorrow afternoonUp to 65°18° by 3 PM
  7. Tomorrow nightDown to 49°9° by 3 AM
Hourly forecast, next 48 hours, in the place's local time
HourConditionsTemperatureFeels likePrecipitationWindHumidityCloud coverUV index
Sat 4aMostly clear46°8° (likely 44°7° to 46°8°)46°8°0%3 mph5 km/h from N76%——
Sat 5aPartly cloudy45°7° (likely 43°6° to 45°7°)43°6°0%5 mph8 km/h from N79%——
Sat 6aMostly cloudy45°7° (likely 42°6° to 45°7°)43°6°0%5 mph8 km/h from N79%——
Sat 7aMostly cloudy44°7° (likely 42°6° to 44°7°)41°5°0%5 mph8 km/h from N79%——
Sat 8aMostly cloudy46°8° (likely 43°6° to 46°8°)44°7°0%5 mph8 km/h from N76%——
Sat 9aMostly cloudy50°10° (likely 47°8° to 50°10°)48°9°0%5 mph8 km/h from N66%——
Sat 10aMostly cloudy55°13° (likely 51°11° to 55°13°)55°13°0%5 mph8 km/h from N55%——
Sat 11aMostly cloudy58°14° (likely 55°13° to 58°14°)58°14°0%5 mph8 km/h from N47%——
Sat 12pMostly cloudy61°16° (likely 58°14° to 61°16°)61°16°0%3 mph5 km/h from NW39%——
Sat 1pMostly cloudy61°16° (likely 60°16° to 61°16°)61°16°0%5 mph8 km/h from NW38%——
Sat 2pMostly cloudy62°17° (likely 61°16° to 62°17°)62°17°0%5 mph8 km/h from W33%——
Sat 3pMostly cloudy62°17° (likely 62°17° to 62°17°)62°17°0%5 mph8 km/h from W35%——
Sat 4pMostly cloudy61°16° (likely 61°16° to 61°16°)61°16°0%5 mph8 km/h from SW36%——
Sat 5pPartly sunny60°16° (likely 59°15° to 60°16°)60°16°0%3 mph5 km/h from SW37%——
Sat 6pMostly clear58°14° (likely 54°12° to 58°14°)58°14°0%3 mph5 km/h from SW40%——
Sat 7pMostly clear56°13° (likely 51°11° to 56°13°)56°13°0%2 mph3 km/h from SW45%——
Sat 8pMostly clear55°13° (likely 50°10° to 55°13°)55°13°0%2 mph3 km/h from SW47%——
Sat 9pClear54°12° (likely 48°9° to 54°12°)54°12°0%2 mph3 km/h from W50%——
Sat 10pMostly clear52°11° (likely 47°8° to 52°11°)52°11°0%1 mph2 km/h from W56%——
Sat 11pClear51°11° (likely 45°7° to 51°11°)51°11°0%2 mph3 km/h from NW63%——
Sun 12aClear50°10° (likely 44°7° to 50°10°)50°10°0%2 mph3 km/h from NW68%——
Sun 1aClear49°9° (likely 43°6° to 49°9°)49°9°0%2 mph3 km/h from NW71%——
Sun 2aClear48°9° (likely 42°6° to 48°9°)48°9°0%3 mph5 km/h from NW71%——
Sun 3aClear47°8° (likely 41°5° to 47°8°)47°8°0%3 mph5 km/h from NW74%——
Sun 4aClear46°8° (likely 40°4° to 46°8°)46°8°0%3 mph5 km/h from NW76%——
Sun 5aClear46°8° (likely 40°4° to 46°8°)46°8°0%3 mph5 km/h from NW76%——
Sun 6aClear45°7° (likely 39°4° to 45°7°)45°7°0%3 mph5 km/h from NW76%——
Sun 7aSunny45°7° (likely 38°3° to 45°7°)45°7°0%3 mph5 km/h from NW76%——
Sun 8aMostly sunny45°7° (likely 40°4° to 45°7°)45°7°0%3 mph5 km/h from NW79%——
Sun 9aSunny49°9° (likely 46°8° to 49°9°)49°9°0%3 mph5 km/h from NW68%——
Sun 10aSunny54°12° (likely 52°11° to 54°12°)54°12°0%3 mph5 km/h from NW57%——
Sun 11aSunny57°14° (likely 57°14° to 57°14°)57°14°0%3 mph5 km/h from NW51%——
Sun 12pSunny61°16° (likely 61°16° to 61°16°)61°16°0%3 mph5 km/h from NW42%——
Sun 1pSunny63°17° (likely 63°17° to 64°18°)63°17°0%5 mph8 km/h from W39%——
Sun 2pSunny63°17° (likely 63°17° to 65°18°)63°17°0%5 mph8 km/h from W38%——
Sun 3pSunny65°18° (likely 65°18° to 65°18°)65°18°0%6 mph10 km/h from W35%——
Sun 4pSunny63°17° (likely 63°17° to 64°18°)63°17°0%6 mph10 km/h from SW39%——
Sun 5pSunny63°17° (likely 61°16° to 63°17°)63°17°0%5 mph8 km/h from SW41%——
Sun 6pClear61°16° (likely 55°13° to 61°16°)61°16°0%5 mph8 km/h from SW44%——
Sun 7pClear58°14° (likely 52°11° to 58°14°)58°14°0%5 mph8 km/h from SW51%——
Sun 8pClear57°14° (likely 51°11° to 57°14°)57°14°0%5 mph8 km/h from SW55%——
Sun 9pClear56°13° (likely 49°9° to 56°13°)56°13°0%3 mph5 km/h from SW59%——
Sun 10pClear55°13° (likely 55°13° to 55°13°)55°13°0%3 mph5 km/h from SW64%——
Sun 11pClear54°12° (likely 54°12° to 54°12°)54°12°0%3 mph5 km/h from W66%——
Mon 12aClear53°12° (likely 53°12° to 53°12°)53°12°0%3 mph5 km/h from W69%——
Mon 1aClear51°11° (likely 51°11° to 51°11°)51°11°0%5 mph8 km/h from W71%——
Mon 2aClear50°10° (likely 50°10° to 50°10°)48°9°0%5 mph8 km/h from W74%——
Mon 3aClear49°9° (likely 49°9° to 49°9°)47°8°0%5 mph8 km/h from W77%——

Days ahead

Shaded: typical range for these dates (1991–2020)
  1. Today, Oct 24. Mostly cloudy. High 62°17°, low 43°6°. Typical 62°17° / 47°8°. Dry. One forecast only.
    1. Morning

      6 AM–noon

      Mostly cloudy, 46°8°

      Dry

    2. Afternoon

      noon–6 PM

      Mostly cloudy, 62°17°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 55°13°

      Dry

    4. Overnight

      midnight–6 AM

      Clear, 46°8°

      Dry

    Official NWS forecast

    Today: Partly sunny. High near 62, with temperatures falling to around 60 in the afternoon. Northwest wind around 5 mph.

    Tonight: Partly cloudy. Low around 43, with temperatures rising to around 45 overnight. North wind around 5 mph.

    One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.

    High, likely
    61°16°–62°17°
    Low, likely
    42°6°–43°6°
    Typical high / low
    62°17° / 47°8°
    Wind
    6 mph9 km/h
  2. Tomorrow, Oct 25. Sunny. High 65°18°, low 47°8°. Typical 61°16° / 46°8°. Dry. One forecast only.
    1. Morning

      6 AM–noon

      Sunny, 45°7°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 65°18°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 57°14°

      Dry

    4. Overnight

      midnight–6 AM

      Clear, 49°9°

      Dry

    Official NWS forecast

    Day: Sunny. High near 65, with temperatures falling to around 63 in the afternoon. West wind around 6 mph.

    Night: Clear, with a low around 47. West wind around 5 mph.

    One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.

    High, likely
    65°18°
    Low, likely
    39°4°–47°8°
    Typical high / low
    61°16° / 46°8°
    Wind
    6 mph9 km/h
  3. Monday, Oct 26. Sunny. High 69°21°, low 50°10°. Typical 61°16° / 46°8°. Dry. One forecast only.

    Official NWS forecast

    Day: Sunny. High near 69, with temperatures falling to around 67 in the afternoon.

    Night: Clear, with a low around 50.

    One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.

    High, likely
    68°20°–69°21°
    Low, likely
    42°6°–50°10°
    Typical high / low
    61°16° / 46°8°
    Wind
    7 mph12 km/h
  4. Tuesday, Oct 27. Mostly sunny. High 60°16°, low 44°7°. Typical 61°16° / 46°8°. Dry. One forecast only.

    Official NWS forecast

    Day: Sunny, with a high near 60.

    Night: Mostly clear, with a low around 44.

    One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.

    High, likely
    59°15°–60°16°
    Low, likely
    44°7°
    Typical high / low
    61°16° / 46°8°
    Wind
    9 mph15 km/h
  5. Wednesday, Oct 28. Partly sunny. High 60°16°, low 51°11°. Typical 60°16° / 45°7°. Dry. One forecast only.

    Official NWS forecast

    Day: Mostly sunny, with a high near 60.

    Night: Mostly cloudy, with a low around 51.

    One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.

    High, likely
    56°13°–60°16°
    Low, likely
    41°5°–51°11°
    Typical high / low
    60°16° / 45°7°
    Wind
    7 mph10 km/h
  6. Thursday, Oct 29. Partly sunny. High 65°18°, low 54°12°. Typical 60°16° / 45°7°. Dry. One forecast only.

    Official NWS forecast

    Day: Mostly sunny, with a high near 65.

    Night: Partly cloudy, with a low around 54.

    One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.

    High, likely
    63°17°–65°18°
    Low, likely
    46°8°–54°12°
    Typical high / low
    60°16° / 45°7°
    Wind
    7 mph12 km/h
  7. Friday, Oct 30. Partly sunny. High 67°19°, low 50°10°. Typical 60°16° / 45°7°. Dry. One forecast only.

    Official NWS forecast

    Day: Mostly sunny, with a high near 67.

    One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.

    High, likely
    67°19°–70°21°
    Low, likely
    50°10°
    Typical high / low
    60°16° / 45°7°
    Wind
    6 mph10 km/h

The outlook

  1. Today

    Dry, high 62°, low 43°.

  2. Tomorrow

    Dry, high 65°, low 47°, warming up.

  3. Monday

    Dry, high 69°, low 50°, warming up.

  4. Rest of week

    Mostly dry, highs 60–67°.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (OKX) (opens in a new tab)

What changed since yesterday

No meaningful changes from yesterday’s forecast.

Radar

Radar data: NOAA MRMS, rendered by forecast.blue
Radar loads when scrolled into view

Full-screen radar

Rivers

NOAA river gauges within 25 mi

Little Neck Bay at Kings Point (IN MLLW)

11 mi
Below flood stage
Level
2.0 ft

Forecast peak 9.4 ft Mon 11 AM

Reading from Sat 3:06 AM · NWS gauge page

New York Harbor at The Battery (IN MLLW)

16 mi
Below flood stage
Level
2.9 ft

Forecast peak 6.2 ft Sat 7 AM

Reading from Sat 3:06 AM · NWS gauge page

Jamaica Bay at Inwood (IN MLLW)

3.4 mi
Below flood stage
Level
2.7 ft

Reading from Sat 2:48 AM · NWS gauge page

East Rockaway Inlet at Atlantic Beach (IN MLLW)

4.5 mi
Below flood stage
Level
3.2 ft

Reading from Sat 3 AM · NWS gauge page

For your home

What this week’s weather means for heating, cooling, pipes and fresh air.

Heating this week

About 74% less heating than a typical week.

This week 22Typical 83

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F
10
h below 17°F
0
h below 5°F
0

47, 17 and 5°F are the test points heat pumps are rated at.

Comfort

Dry air outside (dew point 39°F).

Open the windows?

Today, 12:00 PM–5:00 PM

Good stretch to open the windows.

Is this typical?

Jfk International Airport · official normals 1991–2020 · records 1948–2026

Oct 24, today vs a typical year

Today’s expected high is about typical for the date.

Normal high / low
62°17° / 47°8°
Forecast high / low
62°17° / 43°6°
Record high
74°23° in 2017
Record low
32°0° in 1969

Last 7 days vs normal

On average 0° warmer than normal (daily mean temperature).

  1. −6°−3°SunOct 18
  2. −3°−2°MonOct 19
  3. +4°+2°TueOct 20
  4. +2°+1°WedOct 21
  5. +3°+2°ThuOct 22
  6. —FriOct 23
  7. —SatOct 24

South Valley Stream weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Sunrise 7:16 AM, sunset 6:01 PM.

Daylight
10 h 45 min
Losing 2 min 35 s a day; shortest Dec 21, 1 h 30 min less
Golden hour
5:23–6:18 PM
Morning 6:58–7:53 AM
Blue hour
6:18–6:29 PM
Morning 6:48–6:58 AM; first light 6:48 AM

Stars tonight? Unknown

Cloud forecast not available for tonight.

Moon

Waxing gibbous

96% lit · growing

Today
sets 5:26 AM · rises 4:58 PM
Full moon
Oct 26
New moon
Nov 9
Looking south from South Valley Stream. Open water to the horizon.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.