Hillsboro, Oregon Weather:
Monday, September 21, 2026
Cloudy Weather
Day 79°
Night 48°
Precipitation 2 %
Wind 5 mph
UV Index (0 - 11+) 3
Weather Forecast History
Last Year's Weather on This Day (September 21, 2025)
Night

Day

73°

Night

43°

Wind

4 mph

Precipitation

1 %