East Coast Flash Flood/Severe Thunderstorm Threat Monday

A cold front and waves of low pressure will slowly shift across the Mid-Atlantic and Southeast states Monday and Tuesday. Heavy thunderstorms along this front may produce heavy rain and flash flooding with the highest threat Monday from Tennessee into New England. A few strong to severe thunderstorms are also possible mainly from Northern Maryland to southern New Jersey. Read More >

Current conditions at

New York, La Guardia Airport (KLGA)

Lat: 40.78°NLon: 73.88°WElev: 20ft.

Mostly Cloudy

29°C

85°F

Humidity 57%
Wind Speed NW 24 km/h
Barometer 1009.6 mb (29.82 in)
Dewpoint 20°C (68°F)
Visibility 16 km
Heat Index31°C (88°F)
Last update 21 Jul 10:51 pm EDT
Extended Forecast for

New Rochelle NY

Flash Flood Watch July 22, 12:00pm until July 23, 08:00am
Click here for hazard details and duration
Flash Flood Watch
  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 24. North wind 11 to 13 km/h.

    Slight Chance
    T-storms

    Low: 24 °C

  • Monday

    Monday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Some of the storms could produce heavy rain.  Mostly cloudy, with a high near 27. Northeast wind 11 to 13 km/h.  Chance of precipitation is 60%. New rainfall amounts between 7.5 mm and 1 cm possible.

    Heavy Rain

    High: 27 °C

  • Monday
    Night

    Monday Night: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall.  Low around 20. North wind around 14 km/h.  Chance of precipitation is 80%. New precipitation amounts between 2 and 3 cm possible.

    Heavy Rain

    Low: 20 °C

  • Tuesday

    Tuesday: Showers likely, mainly before noon. The rain could be heavy at times.  Cloudy, with a high near 26. North wind 11 to 21 km/h.  Chance of precipitation is 70%. New precipitation amounts between 1 and 2 cm possible.

    Heavy Rain
    then Chance
    Showers

    High: 26 °C

  • Tuesday
    Night

    Tuesday Night: A 20 percent chance of showers before 9pm.  Mostly cloudy, with a low around 18. North wind 5 to 8 km/h.

    Slight Chance
    Showers then
    Mostly Cloudy

    Low: 18 °C

  • Wednesday

    Wednesday: Mostly sunny, with a high near 27.

    Mostly Sunny

    High: 27 °C

  • Wednesday
    Night

    Wednesday Night: Partly cloudy, with a low around 18.

    Partly Cloudy

    Low: 18 °C

  • Thursday

    Thursday: Sunny, with a high near 28.

    Sunny

    High: 28 °C

  • Thursday
    Night

    Thursday Night: Mostly clear, with a low around 21.

    Mostly Clear

    Low: 21 °C

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 24. North wind 11 to 13 km/h.
Monday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Some of the storms could produce heavy rain. Mostly cloudy, with a high near 27. Northeast wind 11 to 13 km/h. Chance of precipitation is 60%. New rainfall amounts between 7.5 mm and 1 cm possible.
Monday Night
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 20. North wind around 14 km/h. Chance of precipitation is 80%. New precipitation amounts between 2 and 3 cm possible.
Tuesday
Showers likely, mainly before noon. The rain could be heavy at times. Cloudy, with a high near 26. North wind 11 to 21 km/h. Chance of precipitation is 70%. New precipitation amounts between 1 and 2 cm possible.
Tuesday Night
A 20 percent chance of showers before 9pm. Mostly cloudy, with a low around 18. North wind 5 to 8 km/h.
Wednesday
Mostly sunny, with a high near 27.
Wednesday Night
Partly cloudy, with a low around 18.
Thursday
Sunny, with a high near 28.
Thursday Night
Mostly clear, with a low around 21.
Friday
Sunny, with a high near 29.
Friday Night
Mostly clear, with a low around 21.
Saturday
Sunny, with a high near 30.
Saturday Night
Mostly clear, with a low around 21.
Sunday
Sunny, with a high near 31.
Click Map For Forecast
Point Forecast:
New Rochelle NY
 40.91°N 73.77°W (Elev. 5 m)
8:26 pm EDT Jul 21, 2019
11pm EDT Jul 21, 2019-6pm EDT Jul 28, 2019
 
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Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database