Sexton Mountain Weather Forecast
- 37
- 50
Dense Fog
- 38
- 50
Dense Fog
- 38
- 53
Mostly Sunny
- 36
- 55
Mostly Sunny
- 35
- 53
Mostly Sunny
- 34
- 51
Mostly Sunny
Today 13 Jan Tualatin Valley
Areas of dense fog this morning. Partly sunny. Highs in the mid 50s. Light and variable Winds.
Tonight 13 Jan Tualatin Valley
Partly cloudy in the Evening, then becoming mostly cloudy. Patchy fog in the evening. Areas of dense fog after midnight. Lows in the upper 30s. Light and variable Winds.
Sexton Mountain Temperature Statistics
January Temperature
Portland-Hillsboro Airport (8.1 miles)
Lowest 8 January, 2026
28.9 °FAverage January
41.7 °FHighest 3 January, 2026
52 °F
Climate (2021–Present)
Portland-Hillsboro Airport (8.1 miles)
Average Low 2021–2026
43.3 °FAverage 2021–2026
53.7 °FAverage High 2021–2026
64.4 °F