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

Hazardous Weather Conditions

Current conditions at

Otis Air National Guard Base (KFMH)

Lat: 41.65°NLon: 70.52°WElev: 131ft.

Partly Cloudy

68°F

20°C

Humidity 83%
Wind Speed SW 17 mph
Barometer 30.01 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 1 Jul 2:55 am EDT
Extended Forecast for

Sandwich MA

Heat Advisory July 1, 10:00am until July 4, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Southwest wind around 15 mph. Chance of precipitation is 20%.

    Low: 69 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, mainly before 11am. Partly sunny, with a high near 83. Breezy, with a southwest wind 16 to 21 mph. Chance of precipitation is 30%.

    High: 83 °F

    Chance
    Showers then
    Slight Chance
    T-storms and
    Breezy

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, mainly after 9pm. Mostly cloudy, with a low around 71. Breezy, with a southwest wind 17 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 40%.

    Low: 71 °F

    Chance
    Showers and
    Breezy

  • Thursday

    Thursday: A slight chance of showers and thunderstorms before 11am. Sunny and hot, with a high near 91. Heat index values as high as 98. Southwest wind around 16 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.

    High: 91 °F

    Slight Chance
    T-storms then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 73. Southwest wind 9 to 15 mph.

    Low: 73 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny and hot, with a high near 97. West wind 7 to 9 mph.

    High: 97 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 68. West wind 5 to 9 mph.

    Low: 68 °F

    Mostly Clear

  • Independence Day

    Independence Day: Sunny, with a high near 88. Light and variable wind becoming southwest 5 to 7 mph in the morning.

    High: 88 °F

    Sunny

  • Saturday Night

    Saturday Night: A chance of showers between 7pm and 8pm. Partly cloudy, with a low around 72. Southwest wind around 5 mph becoming light and variable in the evening. Chance of precipitation is 30%.

    Low: 72 °F

    Chance
    Showers then
    Mostly Cloudy

Detailed Forecast

Overnight
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Southwest wind around 15 mph. Chance of precipitation is 20%.
Wednesday
A chance of showers and thunderstorms, mainly before 11am. Partly sunny, with a high near 83. Breezy, with a southwest wind 16 to 21 mph. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms, mainly after 9pm. Mostly cloudy, with a low around 71. Breezy, with a southwest wind 17 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 40%.
Thursday
A slight chance of showers and thunderstorms before 11am. Sunny and hot, with a high near 91. Heat index values as high as 98. Southwest wind around 16 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Thursday Night
Mostly clear, with a low around 73. Southwest wind 9 to 15 mph.
Friday
Mostly sunny and hot, with a high near 97. West wind 7 to 9 mph.
Friday Night
Mostly clear, with a low around 68. West wind 5 to 9 mph.
Independence Day
Sunny, with a high near 88. Light and variable wind becoming southwest 5 to 7 mph in the morning.
Saturday Night
A chance of showers between 7pm and 8pm. Partly cloudy, with a low around 72. Southwest wind around 5 mph becoming light and variable in the evening. Chance of precipitation is 30%.
Sunday
A chance of showers after 3pm. Mostly sunny, with a high near 82. Northwest wind 5 to 7 mph becoming northeast in the afternoon. Chance of precipitation is 30%.
Sunday Night
Showers likely. Mostly cloudy, with a low around 64. Light south wind. Chance of precipitation is 60%.
Monday
Showers likely. Partly sunny, with a high near 79. East wind 3 to 8 mph. Chance of precipitation is 60%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 62. East wind 3 to 5 mph. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 82. Northeast wind 6 to 9 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sandwich MA
 41.78°N 70.5°W (Elev. 3 ft)
Last Update:
1:20 am EDT Jul 1, 2026
Forecast Valid:
3am EDT Jul 1, 2026-6pm EDT Jul 7, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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