FIRST ALERT FORECAST: A Christmas cool down is on the way!

TUCSON, Ariz. (KOLD News 13) - Slightly cooler air moves in through Friday. A weak system will bring light rain and/or snow to the mountains on Christmas Day. Temperatures warm to near 70 degrees over the weekend. A wetter storm system brings valley rain and mountain snow early next week.

TONIGHT: Clear skies with temps falling into the low 40s.

WEDNESDAY: Sunny with highs in the mid 60s.

THURSDAY: Partly cloudy with highs in the mid 60s. Light breeze.

CHRISTMAS: Mostly sunny with highs in the upper 60s.

SATURDAY: Sunny with highs in the upper 60s.

SUNDAY: Sunny with highs in the low 70s.

MONDAY: Sunny with highs in the low 70s. Breezy.

TUESDAY: 40% Rain chance, highs in the upper 50s.

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