Willamette River at Portland
6.5 mi- Level
- 2.9 ft
Forecast peak 5.7 ft Wed 7 PM
Reading from Sat 3:25 AM · NWS gauge page
Appearance
Observed 4:40 AM PDT at KHIO
Clear and 32°0°.
Today: low 39°4° (likely 35°2° to 39°4°), high 60°16° (likely 57°14° to 61°16°).
Now 32°0°
Clear
No precipitation expected in the next 2 hours.
From forecast models
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Sat 4a | Partly cloudy | 41°5° (likely 37°3° to 41°5°) | 41°5° | 0% | 0 mph0 km/h, gusts 5 mph7 km/h | 91% | 60% | 0 |
| Sat 5a | Partly cloudy | 41°5° (likely 36°2° to 41°5°) | 41°5° | 0% | 0 mph0 km/h, gusts 4 mph6 km/h | 92% | 61% | 0 |
| Sat 6a | Mostly cloudy | 41°5° (likely 36°2° to 41°5°) | 41°5° | 0% | 0 mph0 km/h, gusts 4 mph6 km/h | 94% | 80% | 0 |
| Sat 7a | Mostly cloudy | 39°4° (likely 35°2° to 39°4°) | 39°4° | 0% | 0 mph0 km/h, gusts 3 mph5 km/h | 94% | 67% | 0 |
| Sat 8a | Fog | 40°4° (likely 35°2° to 40°4°) | 40°4° | 0% | 0 mph0 km/h, gusts 3 mph5 km/h | 95% | 88% | 0 |
| Sat 9a | Cloudy | 41°5° (likely 37°3° to 42°6°) | 41°5° | 0% | 1 mph2 km/h from NNE, gusts 2 mph4 km/h | 93% | 88% | 0 |
| Sat 10a | Cloudy | 45°7° (likely 43°6° to 45°7°) | 45°7° | 0% | 1 mph2 km/h from N, gusts 3 mph4 km/h | 90% | 83% | 1 |
| Sat 11a | Cloudy | 48°9° (likely 47°8° to 49°9°) | 48°9° | 0% | 1 mph2 km/h from NE, gusts 3 mph5 km/h | 81% | 80% | 2 |
| Sat 12p | Partly sunny | 52°11° (likely 50°10° to 53°12°) | 52°11° | 0% | 1 mph2 km/h from E, gusts 5 mph8 km/h | 71% | 72% | 3 |
| Sat 1p | Cloudy | 56°13° (likely 53°12° to 56°13°) | 56°13° | 0% | 1 mph2 km/h from SE, gusts 4 mph7 km/h | 62% | 81% | 3 |
| Sat 2p | Cloudy | 58°14° (likely 55°13° to 59°15°) | 58°14° | 0% | 1 mph2 km/h from S, gusts 3 mph5 km/h | 55% | 81% | 3 |
| Sat 3p | Cloudy | 59°15° (likely 56°13° to 61°16°) | 59°15° | 0% | 1 mph2 km/h from S, gusts 3 mph5 km/h | 50% | 81% | 2 |
| Sat 4p | Cloudy | 60°16° (likely 57°14° to 61°16°) | 60°16° | 0% | 0 mph0 km/h, gusts 4 mph6 km/h | 49% | 82% | 2 |
| Sat 5p | Cloudy | 58°14° (likely 56°13° to 60°16°) | 58°14° | 0% | 0 mph0 km/h, gusts 4 mph6 km/h | 51% | 82% | 1 |
| Sat 6p | Cloudy | 57°14° (likely 53°12° to 57°14°) | 57°14° | 0% | 0 mph0 km/h, gusts 5 mph7 km/h | 53% | 82% | 0 |
| Sat 7p | Cloudy | 54°12° (likely 50°10° to 54°12°) | 54°12° | 0% | 0 mph0 km/h, gusts 5 mph9 km/h | 60% | 82% | 0 |
| Sat 8p | Cloudy | 51°11° (likely 48°9° to 51°11°) | 51°11° | 0% | 0 mph0 km/h, gusts 6 mph9 km/h | 62% | 81% | 0 |
| Sat 9p | Cloudy | 50°10° (likely 47°8° to 50°10°) | 50°10° | 0% | 0 mph0 km/h, gusts 5 mph9 km/h | 65% | 81% | 0 |
| Sat 10p | Cloudy | 48°9° (likely 46°8° to 51°11°) | 48°9° | 5% | 0 mph0 km/h, gusts 4 mph7 km/h | 70% | 81% | 0 |
| Sat 11p | Cloudy | 48°9° (likely 45°7° to 50°10°) | 48°9° | 5% | 0 mph0 km/h, gusts 5 mph8 km/h | 72% | 80% | 0 |
| Sun 12a | Cloudy | 47°8° (likely 44°7° to 49°9°) | 47°8° | 5% | 0 mph0 km/h, gusts 6 mph9 km/h | 75% | 77% | 0 |
| Sun 1a | Cloudy | 46°8° (likely 43°6° to 48°9°) | 46°8° | 5% | 0 mph0 km/h, gusts 7 mph11 km/h | 77% | 72% | 0 |
| Sun 2a | Cloudy | 45°7° (likely 42°6° to 46°8°) | 45°7° | 5% | 1 mph2 km/h from SE, gusts 7 mph12 km/h | 78% | 70% | 0 |
| Sun 3a | Cloudy | 44°7° (likely 42°6° to 46°8°) | 44°7° | 5% | 1 mph2 km/h from SE, gusts 8 mph13 km/h | 79% | 69% | 0 |
| Sun 4a | Cloudy | 44°7° (likely 41°5° to 45°7°) | 44°7° | 5% | 1 mph2 km/h from SSE, gusts 8 mph13 km/h | 81% | 77% | 0 |
| Sun 5a | Cloudy | 44°7° (likely 41°5° to 45°7°) | 44°7° | 40%, 0.05 in1.3 mm | 1 mph2 km/h from SSE, gusts 8 mph13 km/h | 81% | 80% | 0 |
| Sun 6a | Rain | 43°6° (likely 40°4° to 45°7°) | 43°6° | 50%, 0.05 in1.3 mm | 1 mph2 km/h from SSE, gusts 7 mph11 km/h | 81% | 62% | 0 |
| Sun 7a | Rain | 44°7° (likely 40°4° to 46°8°) | 44°7° | 30%, 0.05 in1.3 mm | 1 mph2 km/h from SSE, gusts 8 mph13 km/h | 82% | 69% | 0 |
| Sun 8a | Cloudy | 44°7° (likely 41°5° to 46°8°) | 44°7° | 30%, 0.05 in1.3 mm | 2 mph3 km/h from S, gusts 9 mph15 km/h | 84% | 86% | 0 |
| Sun 9a | Rain | 44°7° (likely 43°6° to 47°8°) | 44°7° | 40%, 0.05 in1.3 mm | 2 mph3 km/h from S, gusts 8 mph13 km/h | 85% | 99% | 0 |
| Sun 10a | Rain | 48°9° (likely 45°7° to 49°9°) | 48°9° | 40%, 0.05 in1.3 mm | 2 mph3 km/h from S, gusts 13 mph21 km/h | 83% | 100% | 1 |
| Sun 11a | Rain | 51°11° (likely 45°7° to 54°12°) | 51°11° | 40%, 0.21 in5.3 mm | 2 mph3 km/h from SSE, gusts 12 mph20 km/h | 78% | 100% | 2 |
| Sun 12p | Rain | 53°12° (likely 45°7° to 57°14°) | 53°12° | 50%, 0.21 in5.3 mm | 2 mph3 km/h from SSE, gusts 14 mph22 km/h | 75% | 100% | 2 |
| Sun 1p | Rain | 56°13° (likely 46°8° to 60°16°) | 56°13° | 70%, 0.21 in5.3 mm | 2 mph3 km/h from SSE, gusts 14 mph23 km/h | 72% | 100% | 3 |
| Sun 2p | Rain | 57°14° (likely 47°8° to 61°16°) | 57°14° | 70%, 0.21 in5.3 mm | 3 mph5 km/h from SE, gusts 13 mph21 km/h | 71% | 95% | 3 |
| Sun 3p | Rain | 57°14° (likely 48°9° to 62°17°) | 57°14° | 80%, 0.21 in5.3 mm | 3 mph5 km/h from SE, gusts 13 mph20 km/h | 69% | 58% | 3 |
| Sun 4p | Rain | 58°14° (likely 49°9° to 62°17°) | 58°14° | 70%, 0.21 in5.3 mm | 3 mph5 km/h from SE, gusts 11 mph17 km/h | 70% | 57% | 2 |
| Sun 5p | Rain | 57°14° (likely 49°9° to 60°16°) | 57°14° | 60%, 0.06 in1.5 mm | 3 mph5 km/h from SE, gusts 11 mph17 km/h | 73% | 68% | 1 |
| Sun 6p | Cloudy | 56°13° (likely 49°9° to 56°13°) | 56°13° | 60%, 0.06 in1.5 mm | 3 mph5 km/h from SE, gusts 14 mph22 km/h | 74% | 85% | 0 |
| Sun 7p | Mostly clear | 55°13° (likely 49°9° to 55°13°) | 55°13° | 60%, 0.06 in1.5 mm | 3 mph5 km/h from SE, gusts 15 mph23 km/h | 75% | 49% | 0 |
| Sun 8p | Cloudy | 53°12° (likely 49°9° to 53°12°) | 53°12° | 60%, 0.06 in1.5 mm | 2 mph3 km/h from SSE, gusts 11 mph17 km/h | 77% | 80% | 0 |
| Sun 9p | Cloudy | 53°12° (likely 49°9° to 53°12°) | 53°12° | 60%, 0.06 in1.5 mm | 2 mph3 km/h from SSE, gusts 10 mph17 km/h | 78% | 70% | 0 |
| Sun 10p | Rain | 52°11° (likely 49°9° to 52°11°) | 52°11° | 60%, 0.06 in1.5 mm | 2 mph3 km/h from SSE, gusts 12 mph19 km/h | 78% | 80% | 0 |
| Sun 11p | Rain | 52°11° (likely 49°9° to 52°11°) | 52°11° | 80%, 0.05 in1.3 mm | 3 mph5 km/h from SSE, gusts 13 mph21 km/h | 79% | 86% | 0 |
| Mon 12a | Rain | 51°11° (likely 48°9° to 51°11°) | 51°11° | 80%, 0.05 in1.3 mm | 3 mph5 km/h from SSE, gusts 8 mph13 km/h | 80% | 80% | 0 |
| Mon 1a | Rain | 51°11° (likely 48°9° to 51°11°) | 51°11° | 80%, 0.05 in1.3 mm | 3 mph5 km/h from SSE, gusts 6 mph10 km/h | 81% | 90% | 0 |
| Mon 2a | Rain | 50°10° (likely 48°9° to 51°11°) | 48°9° | 80%, 0.05 in1.3 mm | 5 mph8 km/h from SSE, gusts 9 mph14 km/h | 82% | 100% | 0 |
| Mon 3a | Rain | 50°10° (likely 48°9° to 51°11°) | 48°9° | 80%, 0.05 in1.3 mm | 5 mph8 km/h from SSE, gusts 9 mph14 km/h | 82% | 94% | 0 |
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
40% chance · 0.05 in1.3 mm
Official NWS forecast
Today: Patchy fog between 8am and 9am. Partly sunny. High near 60, with temperatures falling to around 58 in the afternoon. East wind around 1 mph.
Tonight: Partly cloudy. Low around 39, with temperatures rising to around 41 overnight. Wind around 0 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
50% chance · 0.46 in12 mm
Afternoon
noon–6 PM
80% chance · 1.1 in28 mm
Evening
6 PM–midnight
80% chance · 0.35 in8.9 mm
Overnight
midnight–6 AM
80% chance · 0.22 in5.5 mm
Official NWS forecast
Day: Rain. Mostly cloudy, with a high near 59. South southeast wind around 3 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Night: Rain. Mostly cloudy, with a low around 47. South southeast wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
80% chance · 0.09 in2.3 mm
Afternoon
noon–6 PM
80% chance · 0.1 in2.5 mm
Evening
6 PM–midnight
50% chance · 0.05 in1.2 mm
Overnight
midnight–6 AM
30% chance · 0.04 in0.9 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Rain. Mostly cloudy, with a high near 59. Chance of precipitation is 80%.
Night: A chance of rain before 5am. Mostly cloudy, with a low around 45.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
30% chance · 0.05 in1.4 mm
Afternoon
noon–6 PM
30% chance · 0.05 in1.1 mm
Evening
6 PM–midnight
30% chance · 0.03 in0.8 mm
Overnight
midnight–6 AM
50% chance · 0.07 in1.9 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Patchy fog between 7am and 11am, then a slight chance of rain. Mostly cloudy, with a high near 60.
Night: A chance of rain. Mostly cloudy, with a low around 44.
Forecasts agreeIndependent forecasts are close; the range is narrow.
Morning
6 AM–noon
50% chance · 0.14 in3.6 mm
Afternoon
noon–6 PM
60% chance · 0.07 in1.7 mm
Evening
6 PM–midnight
50% chance · 0.01 in0.3 mm
Overnight
midnight–6 AM
40% chance · 0.03 in0.8 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain. Mostly cloudy, with a high near 59.
Night: A chance of rain. Mostly cloudy, with a low around 43.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
40% chance · 0.11 in2.9 mm
Afternoon
noon–6 PM
50% chance · 0.1 in2.4 mm
Evening
6 PM–midnight
40% chance · 0.05 in1.2 mm
Overnight
midnight–6 AM
20% chance · 0.16 in4 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain. Partly sunny, with a high near 58.
Night: A slight chance of rain before 5am. Mostly cloudy, with a low around 40.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
20% chance · 0.04 in0.9 mm
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain between 11am and 5pm. Mostly sunny, with a high near 59.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Dry, high 60°, low 39°.
77% chance of rain, high 59°, low 47°.
77% chance of rain, high 59°, low 45°.
Highs 50–60°; chance of precipitation on Wednesday.
Want the meteorologists’ reasoning? Read the NWS forecast discussion (PQR) (opens in a new tab)
No meaningful changes from yesterday’s forecast.
Forecast peak 5.7 ft Wed 7 PM
Reading from Sat 3:25 AM · NWS gauge page
Forecast peak 5.2 ft Wed 7 PM
Reading from Sat 3:36 AM · NWS gauge page
Forecast peak 4.2 ft Thu 5 AM
Reading from Sat 2:30 AM · NWS gauge page
Reading from Sat 2:35 AM · NWS gauge page
What this week’s weather means for heating, cooling, pipes and fresh air.
About 68% less heating than a typical week.
Heating degree days, base 65°F
47, 17 and 5°F are the test points heat pumps are rated at. About 5 hours are near freezing and damp, when outdoor units defrost more often.
Dry air outside (dew point 30°F). Indoor air will run dry too — a humidifier keeping indoor relative humidity in the 30–50% range is more comfortable and cuts static shocks, without going so high it fogs cold windows.
No stretch in the next few days is comfortable enough outside, by temperature, dew point and air quality.
Today’s expected high is about typical for the date.
On average 3°2° warmer than normal (daily mean temperature).
Cedar Mill weather by month: normals, records, snow and freeze dates
Sunrise 7:39 AM, sunset 6:10 PM.
Clouds most of the night (about 67% cover).
Waxing gibbous
96% lit · growing