National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Thunderstorms and Widespread Rainfall Across the Southern Plains

Isolated severe thunderstorms and widespread showers may produce flash flooding across the Southern Plains through Thursday. Numerous instances of flash flooding are expected in south-central Texas, including portions of the Hill Country; and an additional area across eastern Oklahoma into the Ozarks on Thursday. Heavy rainfall and mountain snow will return to southern California on Thursday. Read More >

Current conditions at

Marthas Vineyard Airport (KMVY)

Lat: 41.39°NLon: 70.62°WElev: 59ft.

Fair

25°F

-4°C

Humidity 100%
Wind Speed N 7 mph
Barometer 30.21 in (1023.0 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill17°F (-8°C)
Last update 20 Nov 3:53 am EST
Extended Forecast for

Chilmark MA

  • Today

    Today: Mostly cloudy, with a high near 47. North wind around 7 mph.

    High: 47 °F

    Mostly Cloudy

  • Tonight

    Tonight: Partly cloudy, with a low around 32. Light north wind.

    Low: 32 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 54. Light and variable wind becoming southwest 8 to 13 mph in the morning.

    High: 54 °F

    Partly Sunny

  • Friday Night

    Friday Night: Rain likely, mainly after 4am. Cloudy, with a low around 43. Southwest wind 9 to 11 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 43 °F

    Chance Rain
    then Rain
    Likely

  • Saturday

    Saturday: A chance of rain, mainly before noon. Partly sunny, with a high near 52. North wind 10 to 14 mph. Chance of precipitation is 40%.

    High: 52 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 32. North wind 9 to 11 mph.

    Low: 32 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 50. Northwest wind 8 to 10 mph becoming west in the afternoon.

    High: 50 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 40. West wind 9 to 11 mph.

    Low: 40 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 52. West wind around 14 mph.

    High: 52 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 47. North wind around 7 mph.
Tonight
Partly cloudy, with a low around 32. Light north wind.
Friday
Partly sunny, with a high near 54. Light and variable wind becoming southwest 8 to 13 mph in the morning.
Friday Night
Rain likely, mainly after 4am. Cloudy, with a low around 43. Southwest wind 9 to 11 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
A chance of rain, mainly before noon. Partly sunny, with a high near 52. North wind 10 to 14 mph. Chance of precipitation is 40%.
Saturday Night
Mostly clear, with a low around 32. North wind 9 to 11 mph.
Sunday
Mostly sunny, with a high near 50. Northwest wind 8 to 10 mph becoming west in the afternoon.
Sunday Night
Partly cloudy, with a low around 40. West wind 9 to 11 mph.
Monday
Sunny, with a high near 52. West wind around 14 mph.
Monday Night
Partly cloudy, with a low around 39. Northwest wind around 11 mph.
Tuesday
Mostly cloudy, with a high near 53. Northwest wind around 10 mph becoming south in the afternoon.
Tuesday Night
Rain likely. Cloudy, with a low around 43. South wind 9 to 11 mph. Chance of precipitation is 60%.
Wednesday
A chance of rain. Mostly cloudy, with a high near 56. South wind 11 to 13 mph becoming southwest in the afternoon. Chance of precipitation is 50%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Chilmark MA
 41.34°N 70.75°W (Elev. 79 ft)
Last Update:
12:44 am EST Nov 20, 2025
Forecast Valid:
4am EST Nov 20, 2025-6pm EST Nov 26, 2025
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation