Brief cloud-free window for rare Harvest Moon viewing

Clouds redevelop during late-night hours
Posted at 3:55 PM, Sep 13, 2019
and last updated 2019-09-13 17:55:22-04

MISSOULA — A rare full moon occurs tonight, and temperatures will be cooler and clouds mostly stay away until the very early hours of tomorrow.

Expect isolated showers to stay mostly north of I-90 this afternoon and evening.

Those move out later tonight, and we have a few hours of partly clear skies to watch the rare Harvest Moon peak on Friday the 13th at 10:33 PM MDT.

Tomorrow we will be mostly cloudy, but temperatures will rebound into the mid to low 70s.

By Sunday, more sunshine appears, and much warmer temperatures return.

Highs Sunday will be back into the upper 70s and low 80s.

The low pressure system moving in from the Pacific will arrive Monday evening, and scattered showers will develop late Monday through the southwest first.

Temperatures still stay warm Monday, since rain will not develop until we have already hit our highs for the day.

Tuesday temperatures take a major drop.

We get down into the mid to low 60s.

Models are having a difficult time with the amount and timing of precipitation from this low pressure system, so we may likely see scattered showers into Tuesday.

We will have a better idea of how long showers last next week after we head into the weekend.