Casper, Wyoming Weather:
Monday, December 21, 2026
Snowy Weather
Day 36°
Night 14°
Precipitation 25 %
Wind 24 mph
Weather Forecast History
Last Year's Weather on This Day (December 21, 2025)
Partly Sunny with Showers

Day

57°

Night

48°

Wind

17 mph

UV Index

2

Precipitation

55 %