Frost Advisory

* WHAT...Low temperatures ranging between 33 and 36 degrees will result in frost formation.

* WHERE...Central and Southern Willamette Valley, Northern and Central Coast Range Valleys and Mountains of Oregon, Foothills of the Northern and Central Oregon Cascades, Lower Columbia River and Cowlitz River Valleys, Tualatin Valley, Outer Southeast Portland Metro, West Columbia River Gorge of Oregon above 500 ft, Upper Hood River Valley, Willapa Hills, North Clark County Lowlands, and South Washington Cascade Foothills.

* WHEN...From midnight Monday Night to 9 AM PDT Tuesday.

* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Monday, Apr 21, 6:00 AM PDT
Partially cloudy
56°
Feels 56°
 78%
Dewpt 49°
 nne
0 - 1 mph
Sunday, Apr 20
Partly cloudy throughout the day with afternoon rain.
48 58 48 - 58
Monday, Apr 21
Partly cloudy throughout the day.
43 57 43 - 57
Tuesday, Apr 22
Partly cloudy throughout the day.
38 61 38 - 61
Wednesday, Apr 23
Clear conditions throughout the day.
41 68 41 - 68
Thursday, Apr 24
Partly cloudy throughout the day.
45 70 45 - 70
Friday, Apr 25
Partly cloudy throughout the day with a chance of rain.
48 55 48 - 55
Saturday, Apr 26
Partly cloudy throughout the day.
45 54 45 - 54
Sunday, Apr 27
Partly cloudy throughout the day.
45 57 45 - 57
Monday, Apr 28
Partly cloudy throughout the day.
46 55 46 - 55
Tuesday, Apr 29
Partly cloudy throughout the day.
45 67 45 - 67
Wednesday, Apr 30
Partly cloudy throughout the day.
48 71 48 - 71
Thursday, May 1
Partly cloudy throughout the day.
49 75 49 - 75
Friday, May 2
Partly cloudy throughout the day.
52 73 52 - 73
Saturday, May 3
Partly cloudy throughout the day.
45 57 45 - 57
Sunday, May 4
Partly cloudy throughout the day.
43 59 43 - 59
Weather forecast for Portland, OR on Mon, 21 Apr 2025 01:08:33 GMT