Tualatin River at West Linn
5.4 mi- Level
- 2.9 ft
- Flow
- 215 cfs
Forecast peak 3.1 ft Mon 11 AM
Reading from Fri 10:50 PM · NWS gauge page
Appearance
Ends in 9 h 20 min
Issued for this forecast zone · National Weather Service Portland OR
What
Sub-freezing temperatures expected.
Impacts
Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
Precautionary actions
To prevent water pipes from freezing; wrap or drain or allow them to drip slowly.
Take steps now to protect tender outdoor plants from the cold. Consider temporarily moving outdoor potted plants indoors if they are sensitive to cold temperatures.
Areas: North Oregon Coast Range Lowlands; North Oregon Coast Range; West Central Willamette Valley; East Central Willamette Valley; Benton County Lowlands; Linn County Lowlands; Lane County Lowlands; Cascade Foothills of Marion and Linn Counties; Lane County Cascade Foothills
See it on weather.gov (opens in a new tab)Observed 12:10 AM PDT at KUAO
Freeze Warning. 39°4° and clear now.
Today: low 37°3° (likely 35°2° to 40°4°), high 61°16° (likely 56°13° to 62°17°).
Now 39°4°
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 12a | Mostly clear | 43°6° (likely 39°4° to 44°7°) | 43°6° | 0% | 0 mph0 km/h, gusts 4 mph7 km/h | 87% | 21% | 0 |
| Sat 1a | Mostly clear | 42°6° (likely 38°3° to 43°6°) | 42°6° | 0% | 1 mph2 km/h from N, gusts 6 mph9 km/h | 90% | 41% | 0 |
| Sat 2a | Partly cloudy | 41°5° (likely 38°3° to 42°6°) | 41°5° | 0% | 1 mph2 km/h from N, gusts 6 mph10 km/h | 93% | 71% | 0 |
| Sat 3a | Partly cloudy | 40°4° (likely 37°3° to 41°5°) | 40°4° | 0% | 1 mph2 km/h from N, gusts 6 mph10 km/h | 93% | 72% | 0 |
| Sat 4a | Fog | 39°4° (likely 37°3° to 41°5°) | 39°4° | 0% | 1 mph2 km/h from N, gusts 6 mph9 km/h | 95% | 67% | 0 |
| Sat 5a | Fog | 39°4° (likely 36°2° to 41°5°) | 39°4° | 0% | 1 mph2 km/h from N, gusts 6 mph10 km/h | 95% | 73% | 0 |
| Sat 6a | Fog | 38°3° (likely 35°2° to 41°5°) | 38°3° | 0% | 1 mph2 km/h from N, gusts 6 mph9 km/h | 97% | 71% | 0 |
| Sat 7a | Fog | 37°3° (likely 35°2° to 40°4°) | 37°3° | 0% | 1 mph2 km/h from N, gusts 5 mph8 km/h | 99% | 79% | 0 |
| Sat 8a | Fog | 38°3° (likely 36°2° to 40°4°) | 38°3° | 0% | 1 mph2 km/h from N, gusts 4 mph7 km/h | 99% | 82% | 0 |
| Sat 9a | Fog | 39°4° (likely 38°3° to 43°6°) | 39°4° | 0% | 1 mph2 km/h from N, gusts 4 mph6 km/h | 99% | 82% | 0 |
| Sat 10a | Cloudy | 43°6° (likely 42°6° to 47°8°) | 43°6° | 0% | 1 mph2 km/h from N, gusts 5 mph7 km/h | 95% | 69% | 1 |
| Sat 11a | Cloudy | 47°8° (likely 47°8° to 51°11°) | 47°8° | 0% | 1 mph2 km/h from N, gusts 5 mph8 km/h | 87% | 80% | 2 |
| Sat 12p | Partly sunny | 51°11° (likely 50°10° to 54°12°) | 51°11° | 0% | 1 mph2 km/h from N, gusts 4 mph6 km/h | 75% | 70% | 3 |
| Sat 1p | Cloudy | 55°13° (likely 53°12° to 57°14°) | 55°13° | 0% | 1 mph2 km/h from N, gusts 3 mph5 km/h | 67% | 81% | 3 |
| Sat 2p | Cloudy | 57°14° (likely 55°13° to 60°16°) | 57°14° | 0% | 1 mph2 km/h from N, gusts 3 mph4 km/h | 63% | 79% | 3 |
| Sat 3p | Cloudy | 59°15° (likely 56°13° to 61°16°) | 59°15° | 0% | 1 mph2 km/h from E, gusts 3 mph4 km/h | 58% | 81% | 2 |
| Sat 4p | Cloudy | 60°16° (likely 56°13° to 62°17°) | 60°16° | 0% | 1 mph2 km/h from SSE, gusts 2 mph4 km/h | 56% | 82% | 2 |
| Sat 5p | Cloudy | 58°14° (likely 55°13° to 61°16°) | 58°14° | 0% | 1 mph2 km/h from S, gusts 3 mph5 km/h | 59% | 82% | 1 |
| Sat 6p | Cloudy | 56°13° (likely 52°11° to 57°14°) | 56°13° | 0% | 0 mph0 km/h, gusts 3 mph5 km/h | 64% | 83% | 0 |
| Sat 7p | Cloudy | 54°12° (likely 50°10° to 54°12°) | 54°12° | 0% | 0 mph0 km/h, gusts 3 mph5 km/h | 70% | 84% | 0 |
| Sat 8p | Cloudy | 50°10° (likely 48°9° to 52°11°) | 50°10° | 0% | 0 mph0 km/h, gusts 3 mph5 km/h | 73% | 82% | 0 |
| Sat 9p | Cloudy | 48°9° (likely 47°8° to 50°10°) | 48°9° | 0% | 0 mph0 km/h, gusts 4 mph6 km/h | 76% | 82% | 0 |
| Sat 10p | Cloudy | 47°8° (likely 46°8° to 49°9°) | 47°8° | 0% | 0 mph0 km/h, gusts 4 mph6 km/h | 80% | 82% | 0 |
| Sat 11p | Cloudy | 46°8° (likely 45°7° to 47°8°) | 46°8° | 5% | 0 mph0 km/h, gusts 6 mph9 km/h | 82% | 81% | 0 |
| Sun 12a | Cloudy | 45°7° (likely 45°7° to 46°8°) | 45°7° | 5% | 0 mph0 km/h, gusts 6 mph10 km/h | 82% | 79% | 0 |
| Sun 1a | Cloudy | 44°7° (likely 44°7° to 46°8°) | 44°7° | 5% | 1 mph2 km/h from SSE, gusts 6 mph9 km/h | 84% | 76% | 0 |
| Sun 2a | Cloudy | 44°7° (likely 43°6° to 46°8°) | 44°7° | 5% | 1 mph2 km/h from SSE, gusts 5 mph8 km/h | 85% | 73% | 0 |
| Sun 3a | Mostly cloudy | 42°6° (likely 42°6° to 46°8°) | 42°6° | 5% | 1 mph2 km/h from SSE, gusts 5 mph8 km/h | 83% | 62% | 0 |
| Sun 4a | Partly cloudy | 42°6° (likely 41°5° to 45°7°) | 42°6° | 5% | 1 mph2 km/h from SSE, gusts 5 mph8 km/h | 83% | 72% | 0 |
| Sun 5a | Cloudy | 42°6° (likely 40°4° to 45°7°) | 42°6° | 20%, 0.05 in1.3 mm | 2 mph3 km/h from SSE, gusts 5 mph8 km/h | 83% | 73% | 0 |
| Sun 6a | Rain | 41°5° (likely 40°4° to 45°7°) | 41°5° | 30%, 0.05 in1.3 mm | 2 mph3 km/h from SSE, gusts 8 mph12 km/h | 83% | 65% | 0 |
| Sun 7a | Rain | 42°6° (likely 40°4° to 46°8°) | 42°6° | 20%, 0.05 in1.3 mm | 2 mph3 km/h from SSE, gusts 6 mph9 km/h | 83% | 78% | 0 |
| Sun 8a | Cloudy | 42°6° (likely 40°4° to 47°8°) | 40°4° | 30%, 0.05 in1.3 mm | 3 mph5 km/h from S, gusts 7 mph11 km/h | 85% | 75% | 0 |
| Sun 9a | Rain | 44°7° (likely 43°6° to 49°9°) | 42°6° | 30%, 0.05 in1.3 mm | 3 mph5 km/h from S, gusts 8 mph13 km/h | 86% | 81% | 0 |
| Sun 10a | Rain | 48°9° (likely 48°9° to 50°10°) | 47°8° | 40%, 0.05 in1.3 mm | 3 mph5 km/h from S, gusts 13 mph21 km/h | 85% | 95% | 1 |
| Sun 11a | Rain | 51°11° (likely 49°9° to 55°13°) | 51°11° | 30%, 0.23 in5.8 mm | 3 mph5 km/h from S, gusts 14 mph22 km/h | 81% | 99% | 2 |
| Sun 12p | Rain | 54°12° (likely 49°9° to 58°14°) | 54°12° | 50%, 0.23 in5.8 mm | 3 mph5 km/h from S, gusts 16 mph26 km/h | 76% | 100% | 3 |
| Sun 1p | Rain | 56°13° (likely 49°9° to 59°15°) | 56°13° | 60%, 0.23 in5.8 mm | 3 mph5 km/h from S, gusts 14 mph23 km/h | 74% | 85% | 3 |
| Sun 2p | Rain | 58°14° (likely 50°10° to 60°16°) | 58°14° | 70%, 0.23 in5.8 mm | 3 mph5 km/h from SSE, gusts 13 mph21 km/h | 74% | 100% | 3 |
| Sun 3p | Rain | 58°14° (likely 51°11° to 58°14°) | 58°14° | 80%, 0.23 in5.8 mm | 3 mph5 km/h from SSE, gusts 12 mph19 km/h | 73% | 99% | 2 |
| Sun 4p | Rain | 60°16° (likely 52°11° to 60°16°) | 60°16° | 60%, 0.23 in5.8 mm | 3 mph5 km/h from SSE, gusts 13 mph21 km/h | 73% | 97% | 2 |
| Sun 5p | Rain | 57°14° (likely 52°11° to 57°14°) | 57°14° | 60%, 0.06 in1.5 mm | 3 mph5 km/h from SSE, gusts 14 mph23 km/h | 78% | 88% | 1 |
| Sun 6p | Rain | 56°13° (likely 52°11° to 56°13°) | 56°13° | 60%, 0.06 in1.5 mm | 3 mph5 km/h from SSE, gusts 8 mph14 km/h | 79% | 85% | 0 |
| Sun 7p | Rain | 54°12° (likely 50°10° to 54°12°) | 54°12° | 60%, 0.06 in1.5 mm | 3 mph5 km/h from SSE, gusts 9 mph15 km/h | 82% | 90% | 0 |
| Sun 8p | Rain | 52°11° (likely 49°9° to 52°11°) | 52°11° | 60%, 0.06 in1.5 mm | 3 mph5 km/h from S, gusts 10 mph16 km/h | 86% | 77% | 0 |
| Sun 9p | Rain | 52°11° (likely 49°9° to 52°11°) | 52°11° | 60%, 0.06 in1.5 mm | 3 mph5 km/h from S, gusts 10 mph16 km/h | 87% | 73% | 0 |
| Sun 10p | Rain | 51°11° (likely 47°8° to 52°11°) | 51°11° | 60%, 0.06 in1.5 mm | 3 mph5 km/h from S, gusts 10 mph16 km/h | 87% | 76% | 0 |
| Sun 11p | Rain | 51°11° (likely 45°7° to 52°11°) | 51°11° | 80%, 0.05 in1.3 mm | 6 mph10 km/h from S, gusts 10 mph16 km/h | 87% | 44% | 0 |
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
20% chance · 0.05 in1.3 mm
Official NWS forecast
Today: Patchy fog before 11am. Partly sunny. High near 61, with temperatures falling to around 58 in the afternoon. East wind around 1 mph.
Tonight: Patchy fog after 4am. Partly cloudy. Low around 37, with temperatures rising to around 39 overnight. North wind around 1 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
40% chance · 0.48 in12 mm
Afternoon
noon–6 PM
80% chance · 1.2 in31 mm
Evening
6 PM–midnight
80% chance · 0.35 in8.9 mm
Overnight
midnight–6 AM
80% chance · 0.12 in3 mm
Official NWS forecast
Day: Rain. Mostly cloudy, with a high near 61. 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 45. South southeast wind 3 to 9 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
70% chance · 0.12 in3 mm
Afternoon
noon–6 PM
70% chance · 0.1 in2.5 mm
Evening
6 PM–midnight
50% chance · 0.04 in1 mm
Overnight
midnight–6 AM
40% chance · 0.03 in0.7 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Rain. Mostly cloudy, with a high near 60. Chance of precipitation is 80%.
Night: Rain likely. Mostly cloudy, with a low around 44.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
30% chance · 0.04 in1 mm
Afternoon
noon–6 PM
30% chance · 0.05 in1.3 mm
Evening
6 PM–midnight
20% chance · 0.05 in1.2 mm
Overnight
midnight–6 AM
40% chance · 0.05 in1.3 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain. Mostly cloudy, with a high near 61.
Night: A chance of rain. Mostly cloudy, with a low around 42.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
40% chance · 0.05 in1.4 mm
Afternoon
noon–6 PM
40% chance · 0.07 in1.8 mm
Evening
6 PM–midnight
40% chance · 0.04 in1.1 mm
Overnight
midnight–6 AM
30% chance · 0.07 in1.8 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain. Mostly cloudy, with a high near 60.
Night: A chance of rain. Mostly cloudy, with a low around 41.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
40% chance · 0.08 in2.1 mm
Afternoon
noon–6 PM
30% chance · 0.08 in2.1 mm
Evening
6 PM–midnight
20% chance · 0.06 in1.4 mm
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain. Partly sunny, with a high near 59.
Night: A slight chance of rain before 11pm. Mostly cloudy, with a low around 39.
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.
Official NWS forecast
Day: A slight chance of rain between 11am and 5pm. Mostly sunny, with a high near 60.
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.
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.
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 61°, low 37°.
75% chance of rain, high 61°, low 45°.
76% chance of rain, high 60°, low 44°.
Highs 52–61°; 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 3.1 ft Mon 11 AM
Reading from Fri 10:50 PM · NWS gauge page
Forecast peak 5.7 ft Tue 5 PM
Reading from Fri 11 PM · NWS gauge page
Forecast peak 9.2 ft Mon 11 PM
Reading from Fri 10 PM · NWS gauge page
Forecast peak 56.0 ft Tue 5 PM
Reading from Fri 10:50 PM · NWS gauge page
What this week’s weather means for heating, cooling, pipes and fresh air.
About 65% 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 15 hours are near freezing and damp, when outdoor units defrost more often.
Dry air outside (dew point 37°F).
No stretch in the next few days is comfortable enough outside, by temperature, dew point and air quality.
Today’s expected high is 2°1° warmer than typical.
On average 4°2° warmer than normal (daily mean temperature).
Wilsonville weather by month: normals, records, snow and freeze dates
Sunrise 7:39 AM, sunset 6:10 PM.
Clouds most of the night (about 62% cover).
Waxing gibbous
96% lit · growing