The following are sources of information about terrestrial and solar viewing conditions.
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Boston Clear Sky Chart (THE last word on local weather) http://cleardarksky.com/c/Bostonkey.html?1 |
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WeatherStreet Cloud Cover (Boston) https://weatherstreet.com/states/massachusetts-cloud-cover-forecast.htm |
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Meteoblue (Cambridge) https://www.meteoblue.com/en/weather/outdoorsports/seeing/cambridge_united-states-of-america_4931972 |
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Astrospheric https://www.astrospheric.com/?Latitude=42.360050201416016&Longitude=-71.11006164550781&Loc=Forecast |
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Weather Underground (Cambridge) http://www.wunderground.com/cgi-bin/findweather/getForecast?hourly=1&query=02139& |
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Accuweather (Cambridge) (Stargazing Forecast) http://www.accuweather.com/us/ma/cambridge/02139/outdoor-astronomy.asp |
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Heavens Above (ISS, satellite passes, Iridium flares, etc.) http://www.heavens-above.com/ |
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Spaceweather (Solar flares, aurora, near-Earth asteroids, rocket trails, etc.) http://www.spaceweather.com/ |