What “Arctic Outflow – Warning” means in the weather forecast December 27, 2021December 26, 2021 UPDATE: As of 9 a.m. it's actually -13 °C. This is fine. It means this is the weather predicted for tomorrow: Average high/low: 6/2. Record low: -7 We may break both high1Achievement already unlocked and low temperature records this year. Climate change is fun 2Not actually fun! Share this post on social media.