Astrospheric

Welcome to Astrospheric

Astrospheric provides advanced weather tools for professional astronomers, astrophotographers, and universities across the continental US and Canada. It is the only service that generates dynamic, location-specific forecasts from the Canadian Meteorological Centre and Allan Rahill's Astronomy Forecast. Astrospheric also partners with leading scientists and integrates cutting-edge weather models to help you plan your nights under the stars with confidence.

Only Astrospheric's Transparency forecast includes wildfire smoke

Astrospheric is the only place you can get hourly seeing forecasts from Allan Rahill's powerful seeing model.

Astrospheric Pro provides access to the best in class multi-model cloud ensemble for astronomers and much more.

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Thanks to the ensemble forecast, if all forecasts agree that it will be clear ... you are probably in the clear.

Astrospheric was instrumental in helping us find a clear location to catch totality

Smoke is integrated into their transparency forecast!

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44° 19' 3" N

121° 28' 27" W

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44° 19' 3" N 121° 28' 27" W

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Astrospheric's Transparency forecast includes wildfire smoke data

Astrospheric provides free tools to astronomical societies and star parties

Astrospheric Pro provides access to the major cloud forecast models

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This API Key can be used to request raw weather data directly from Astrospheric's servers. Astrospheric Professional is required to use this key.

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Creating
Forecast

Basic Data

Cloud Cover

Transparency

Seeing

Wind

Temperature

Dew Point

Extended Cloud Forecast

Moon Details

Current Moon Phase

Moon Phase

Altitude
Illuminated
Age (days)

Next Moon Phase

lunar eclipse

Astronomical Clock

Midnight

Noon

My List

Edit

Planets

Aurora Nowcast

Forecast Details

Latitude: 44° 19' 3" N

Longitude: 121° 28' 27" W

Model Details

Model	Data Published	Available at Location
RDPS
GFS
ICON
RAP
NBM

Next major update approximately

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	Forecast data provided by the Canadian Meteorological Centre
	Smoke forecast data provided by RAP model
	Cloud forecast data provided by NAM, RDPS, and GFS models
	We acknowledge the use of imagery provided by services from NASA's Global Imagery Browse Services (GIBS), part of NASA's Earth Observing System Data and Information System (EOSDIS).
	Ads shown on Astrospheric are a blend of sponsor created assets and affliliate links.


Cloudy	Poor	< Average	Average	> Average	Excellent


Cloudy	Poor	< Average	Average	> Average	Excellent


0 to .1 Clear	.1 to .2 Average	.2 to .3	.3 to .4	.4 to .6	.6 to 1	1 to 2	> 2