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

Flash Flood Threats in the Southeast and Rockies; Excessive Heat in the Southwest

Flash and small stream flooding threats linger across the southern Rockies Wednesday. Strong thunderstorms with heavy downpours may cause local flash flooding along portions of the Southeast states into Thursday. Excessive heat will continue to impact the southern California mountains and deserts into Arizona and Nevada into Thursday. Read More >

Current conditions at

Marthas Vineyard Airport (KMVY)

Lat: 41.39°NLon: 70.62°WElev: 59ft.

Fair

17°C

62°F

Humidity 96%
Wind Speed Calm
Barometer 1018.1 mb (30.07 in)
Dewpoint 16°C (61°F)
Visibility 13 km
Last update 4 Aug 1:53 am EDT
Extended Forecast for

Chilmark MA

  • Overnight

    Overnight: Cloudy, with a low around 16. Southeast wind 5 to 8 km/h.

    Cloudy

    Low: 16 °C

  • Wednesday

    Wednesday: Showers likely, mainly after 3pm. Cloudy, with a high near 22. Southeast wind 8 to 14 km/h. Chance of precipitation is 60%. New precipitation amounts between 2.5 and 5 mm possible.

    Slight Chance
    Showers then
    Showers
    Likely

    High: 22 °C

  • Wednesday
    Night

    Wednesday Night: Showers, with thunderstorms also possible after midnight. Patchy fog before 2am. Low around 18. East wind 18 to 24 km/h. Chance of precipitation is 80%. New rainfall amounts between 2 and 3 cm possible.

    Showers and
    Patchy Fog

    Low: 18 °C

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm before 9am, then a chance of showers. Patchy fog between 8am and 9am. Otherwise, cloudy, with a high near 23. South wind 16 to 24 km/h. Chance of precipitation is 60%. New precipitation amounts between 1 and 2 cm possible.

    Showers
    Likely and
    Patchy Fog
    then Chance
    Showers

    High: 23 °C

  • Thursday
    Night

    Thursday Night: A slight chance of showers between 2am and 3am. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 18. South wind 11 to 16 km/h. Chance of precipitation is 20%.

    Slight Chance
    Showers and
    Patchy Fog

    Low: 18 °C

  • Friday

    Friday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 24. Southwest wind 10 to 14 km/h.

    Patchy Fog
    then Sunny

    High: 24 °C

  • Friday
    Night

    Friday Night: Patchy fog after 4am. Otherwise, partly cloudy, with a low around 19. Southwest wind around 11 km/h.

    Mostly Clear
    then Patchy
    Fog

    Low: 19 °C

  • Saturday

    Saturday: Patchy fog before 9am. Otherwise, partly sunny, with a high near 25. Southwest wind 10 to 16 km/h.

    Patchy Fog
    then Partly
    Sunny

    High: 25 °C

  • Saturday
    Night

    Saturday Night: Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 19. Southwest wind 10 to 14 km/h.

    Mostly Cloudy
    then Patchy
    Fog

    Low: 19 °C

Detailed Forecast

Overnight
Cloudy, with a low around 16. Southeast wind 5 to 8 km/h.
Wednesday
Showers likely, mainly after 3pm. Cloudy, with a high near 22. Southeast wind 8 to 14 km/h. Chance of precipitation is 60%. New precipitation amounts between 2.5 and 5 mm possible.
Wednesday Night
Showers, with thunderstorms also possible after midnight. Patchy fog before 2am. Low around 18. East wind 18 to 24 km/h. Chance of precipitation is 80%. New rainfall amounts between 2 and 3 cm possible.
Thursday
Showers likely and possibly a thunderstorm before 9am, then a chance of showers. Patchy fog between 8am and 9am. Otherwise, cloudy, with a high near 23. South wind 16 to 24 km/h. Chance of precipitation is 60%. New precipitation amounts between 1 and 2 cm possible.
Thursday Night
A slight chance of showers between 2am and 3am. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 18. South wind 11 to 16 km/h. Chance of precipitation is 20%.
Friday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 24. Southwest wind 10 to 14 km/h.
Friday Night
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 19. Southwest wind around 11 km/h.
Saturday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 25. Southwest wind 10 to 16 km/h.
Saturday Night
Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 19. Southwest wind 10 to 14 km/h.
Sunday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 25. Southwest wind around 11 km/h.
Sunday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 19. Southwest wind 8 to 10 km/h.
Monday
Patchy fog. Otherwise, mostly sunny, with a high near 24. Southeast wind 8 to 13 km/h.
Monday Night
Patchy fog. Otherwise, partly cloudy, with a low around 19. South wind around 11 km/h.
Tuesday
Patchy fog. Otherwise, mostly sunny, with a high near 25. South wind 10 to 18 km/h.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Chilmark MA
 41.37°N 70.75°W (Elev. 91 m)
Last Update:
2:02 am EDT Aug 4, 2021
Forecast Valid:
2am EDT Aug 4, 2021-6pm EDT Aug 10, 2021
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation