© Copyright TWC Product and Technology LLC 2014, 2020. Ordinary outdoor activities are not possible at this time without extra illumination. Average Weather during June in Juneau (Alaska), United States of America The average minimum temperature (usually the minimum temperature is noted during the night) in Juneau in June is 7.0°C (44.6°F). The amount of rain in June is normal with an average of 80mm (3.1in). Take control of your data. You are about to report this weather station for bad data. Please select the information that is incorrect. Weather Underground provides local & long-range weather forecasts, weatherreports, maps & tropical weather conditions for the Juneau area. All Year Climate & Weather Averages in Juneau. Thank you for reporting this station. In the beginning of morning astronomical twilight and at the end of astronomical twilight in the evening, sky illumination is very faint, and might be undetectable. We will review the data in question. The horizon should be clearly defined and the brightest stars should be visible under good atmospheric conditions (i.e. The time of Actual Sunset minus the time of Actual Sunrise. We recognize our responsibility to use data and technology for good. One still should be able to carry on ordinary outdoor activities. Humidity: 83%. no moonlight, or other lights). High Temp: 63 °F. Dew Point: 37 °F. The horizon is well defined and the outline of objects might be visible without artificial light. The time period when the sun is between 6 and 12 degrees below the horizon at either sunrise or sunset. Low Temp: 25 °F. Get the monthly weather forecast for Juneau, AK, including daily high/low, historical averages, to help you plan ahead. Today’s and tonight’s Juneau, AK weather forecast, weather conditions and Doppler radar from The Weather Channel and Weather.com The time of Civil Sunset minus the time of Civil Sunrise. Precipitation: 4.13". The average maximum temperature lies around 16.0°C (60.8°F). Juneau Weather Forecasts. The change in length of daylight between today and tomorrow is also listed when available. The time period when the sun is between 12 and 18 degrees below the horizon at either sunrise or sunset. Showing: All Year January February March April May June July August September October November December. The time period when the sun is no more than 6 degrees below the horizon at either sunrise or sunset. Mean Temp: 42 °F. The sun does not contribute to the illumination of the sky before this time in the morning, or after this time in the evening.