Richland, Washington Weather:
Friday, December 18, 2026
Cloudy Weather
Day 45°
Night 32°
Precipitation 87 %
Wind 17 mph
Weather Forecast History
Last Year's Weather on This Day (December 18, 2025)
Rainy Weather

Day

55°

Night

45°

Wind

8 mph

UV Index

0

Precipitation

97 %