Tualatin River at West Linn
3.7 mi- Level
- 2.9 ft
- Flow
- 215 cfs
Forecast peak 3.1 ft Mon 5 AM
Reading from Sat 4:10 PM · NWS gauge page
Appearance
Observed 5:20 PM PDT at KUAO
Overcast and 55°13°, rain tomorrow ~9 AM–6 PM (68%).
Today: low 41°5° (likely 35°2° to 41°5°), high 62°17° (likely 57°14° to 62°17°).
Now 55°13°
Cloudy
No precipitation expected in the next 2 hours.
From forecast models
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Sat 5p | Cloudy | 60°16° (likely 56°13° to 60°16°) | 60°16° | 0% | 1 mph2 km/h from SSE, gusts 3 mph5 km/h | 52% | 82% | 1 |
| Sat 6p | Cloudy | 58°14° (likely 52°11° to 58°14°) | 58°14° | 0% | 0 mph0 km/h, gusts 3 mph4 km/h | 57% | 83% | 0 |
| Sat 7p | Cloudy | 55°13° (likely 49°9° to 55°13°) | 55°13° | 0% | 0 mph0 km/h, gusts 4 mph6 km/h | 63% | 84% | 0 |
| Sat 8p | Cloudy | 51°11° (likely 48°9° to 51°11°) | 51°11° | 0% | 0 mph0 km/h, gusts 4 mph6 km/h | 69% | 83% | 0 |
| Sat 9p | Cloudy | 49°9° (likely 47°8° to 49°9°) | 49°9° | 0% | 0 mph0 km/h, gusts 3 mph5 km/h | 74% | 84% | 0 |
| Sat 10p | Cloudy | 48°9° (likely 46°8° to 48°9°) | 48°9° | 0% | 0 mph0 km/h, gusts 4 mph6 km/h | 76% | 83% | 0 |
| Sat 11p | Cloudy | 47°8° (likely 45°7° to 48°9°) | 47°8° | 0% | 0 mph0 km/h, gusts 4 mph7 km/h | 77% | 82% | 0 |
| Sun 12a | Cloudy | 46°8° (likely 44°7° to 47°8°) | 46°8° | 0% | 0 mph0 km/h, gusts 6 mph9 km/h | 81% | 78% | 0 |
| Sun 1a | Cloudy | 45°7° (likely 44°7° to 46°8°) | 45°7° | 0% | 0 mph0 km/h, gusts 6 mph9 km/h | 82% | 72% | 0 |
| Sun 2a | Cloudy | 45°7° (likely 44°7° to 45°7°) | 45°7° | 0% | 1 mph2 km/h from SSE, gusts 6 mph9 km/h | 82% | 69% | 0 |
| Sun 3a | Cloudy | 43°6° (likely 43°6° to 45°7°) | 43°6° | 0% | 1 mph2 km/h from SSE, gusts 7 mph11 km/h | 80% | 70% | 0 |
| Sun 4a | Mostly cloudy | 43°6° (likely 42°6° to 45°7°) | 43°6° | 0% | 1 mph2 km/h from SSE, gusts 7 mph12 km/h | 79% | 69% | 0 |
| Sun 5a | Cloudy | 43°6° (likely 42°6° to 45°7°) | 43°6° | 10%, 0.06 in1.5 mm | 2 mph3 km/h from SSE, gusts 8 mph13 km/h | 78% | 70% | 0 |
| Sun 6a | Rain | 42°6° (likely 41°5° to 45°7°) | 42°6° | 20%, 0.06 in1.5 mm | 2 mph3 km/h from S, gusts 8 mph13 km/h | 78% | 60% | 0 |
| Sun 7a | Cloudy | 43°6° (likely 41°5° to 46°8°) | 43°6° | 20%, 0.06 in1.5 mm | 1 mph2 km/h from S, gusts 10 mph15 km/h | 78% | 78% | 0 |
| Sun 8a | Rain | 43°6° (likely 43°6° to 48°9°) | 43°6° | 40%, 0.06 in1.5 mm | 2 mph3 km/h from S, gusts 10 mph16 km/h | 81% | 87% | 0 |
| Sun 9a | Rain | 44°7° (likely 44°7° to 49°9°) | 44°7° | 50%, 0.06 in1.5 mm | 2 mph3 km/h from S, gusts 11 mph17 km/h | 86% | 91% | 0 |
| Sun 10a | Rain | 48°9° (likely 47°8° to 50°10°) | 48°9° | 50%, 0.06 in1.5 mm | 2 mph3 km/h from S, gusts 12 mph20 km/h | 87% | 99% | 0 |
| Sun 11a | Rain | 51°11° (likely 48°9° to 51°11°) | 51°11° | 70%, 0.14 in3.6 mm | 3 mph5 km/h from S, gusts 19 mph30 km/h | 84% | 100% | 0 |
| Sun 12p | Rain | 53°12° (likely 47°8° to 53°12°) | 53°12° | 70%, 0.14 in3.6 mm | 3 mph5 km/h from S, gusts 17 mph27 km/h | 83% | 100% | 0 |
| Sun 1p | Rain | 55°13° (likely 48°9° to 55°13°) | 55°13° | 60%, 0.14 in3.6 mm | 3 mph5 km/h from S, gusts 16 mph25 km/h | 81% | 100% | 0 |
| Sun 2p | Rain | 56°13° (likely 49°9° to 56°13°) | 56°13° | 70%, 0.14 in3.6 mm | 5 mph8 km/h from S, gusts 16 mph25 km/h | 81% | 99% | 1 |
| Sun 3p | Rain | 57°14° (likely 50°10° to 57°14°) | 57°14° | 70%, 0.14 in3.6 mm | 3 mph5 km/h from SSW, gusts 13 mph21 km/h | 80% | 97% | 1 |
| Sun 4p | Rain | 58°14° (likely 50°10° to 58°14°) | 58°14° | 60%, 0.14 in3.6 mm | 3 mph5 km/h from SSW, gusts 13 mph21 km/h | 84% | 92% | 0 |
| Sun 5p | Rain | 57°14° (likely 50°10° to 57°14°) | 57°14° | 70%, 0.09 in2.3 mm | 3 mph5 km/h from S, gusts 15 mph25 km/h | 83% | 91% | 0 |
| Sun 6p | Cloudy | 56°13° (likely 50°10° to 56°13°) | 56°13° | 70%, 0.09 in2.3 mm | 3 mph5 km/h from S, gusts 15 mph24 km/h | 84% | 96% | 0 |
| Sun 7p | Cloudy | 55°13° (likely 50°10° to 55°13°) | 55°13° | 30%, 0.09 in2.3 mm | 3 mph5 km/h from S, gusts 16 mph25 km/h | 88% | 93% | 0 |
| Sun 8p | Cloudy | 52°11° (likely 50°10° to 52°11°) | 52°11° | 20%, 0.09 in2.3 mm | 2 mph3 km/h from SSE, gusts 16 mph26 km/h | 90% | 86% | 0 |
| Sun 9p | Rain | 52°11° (likely 50°10° to 52°11°) | 52°11° | 30%, 0.09 in2.3 mm | 2 mph3 km/h from SSE, gusts 17 mph28 km/h | 91% | 73% | 0 |
| Sun 10p | Rain | 51°11° (likely 50°10° to 52°11°) | 51°11° | 80%, 0.09 in2.3 mm | 2 mph3 km/h from SSE, gusts 15 mph25 km/h | 90% | 87% | 0 |
| Sun 11p | Rain | 51°11° (likely 50°10° to 51°11°) | 51°11° | 60%, 0.05 in1.3 mm | 6 mph10 km/h from S, gusts 21 mph33 km/h | 89% | 87% | 0 |
| Mon 12a | Rain | 50°10° (likely 49°9° to 51°11°) | 48°9° | 30%, 0.05 in1.3 mm | 6 mph10 km/h from S, gusts 16 mph26 km/h | 90% | 83% | 0 |
| Mon 1a | Rain | 50°10° (likely 49°9° to 51°11°) | 48°9° | 80%, 0.05 in1.3 mm | 6 mph10 km/h from S, gusts 17 mph28 km/h | 90% | 90% | 0 |
| Mon 2a | Rain | 50°10° (likely 49°9° to 51°11°) | 48°9° | 40%, 0.05 in1.3 mm | 5 mph8 km/h from SSE, gusts 17 mph28 km/h | 90% | 100% | 0 |
| Mon 3a | Cloudy | 50°10° (likely 49°9° to 51°11°) | 48°9° | 10%, 0.05 in1.3 mm | 5 mph8 km/h from SSE, gusts 18 mph29 km/h | 89% | 100% | 0 |
| Mon 4a | Rain | 48°9° (likely 48°9° to 51°11°) | 46°8° | 50%, 0.05 in1.3 mm | 5 mph8 km/h from SSE, gusts 18 mph30 km/h | 90% | 99% | 0 |
| Mon 5a | Rain | 48°9° (likely 48°9° to 51°11°) | 45°7° | 90%, 0.12 in3 mm | 6 mph10 km/h from SSE, gusts 18 mph29 km/h | 89% | 96% | 0 |
| Mon 6a | Rain | 48°9° (likely 48°9° to 51°11°) | 45°7° | 90%, 0.12 in3 mm | 6 mph10 km/h from SSE, gusts 20 mph32 km/h | 90% | 98% | 0 |
| Mon 7a | Rain | 48°9° (likely 48°9° to 51°11°) | 45°7° | 90%, 0.12 in3 mm | 6 mph10 km/h from SSE, gusts 20 mph33 km/h | 91% | 92% | 0 |
| Mon 8a | Rain | 48°9° (likely 48°9° to 51°11°) | 46°8° | 90%, 0.12 in3 mm | 5 mph8 km/h from SSE, gusts 21 mph33 km/h | 93% | 100% | 0 |
| Mon 9a | Rain | 49°9° (likely 49°9° to 52°11°) | 47°8° | 90%, 0.12 in3 mm | 5 mph8 km/h from SSE, gusts 18 mph29 km/h | 95% | 73% | 0 |
| Mon 10a | Drizzle | 51°11° (likely 50°10° to 53°12°) | 51°11° | 90%, 0.12 in3 mm | 5 mph8 km/h from SSE, gusts 20 mph32 km/h | 97% | 96% | 0 |
| Mon 11a | Cloudy | 52°11° (likely 51°11° to 54°12°) | 52°11° | 80%, 0.04 in1 mm | 5 mph8 km/h from S, gusts 19 mph31 km/h | 98% | 95% | 0 |
| Mon 12p | Rain | 54°12° (likely 50°10° to 56°13°) | 54°12° | 80%, 0.04 in1 mm | 5 mph8 km/h from S, gusts 17 mph27 km/h | 96% | 84% | 0 |
| Mon 1p | Drizzle | 55°13° (likely 50°10° to 57°14°) | 55°13° | 80%, 0.04 in1 mm | 5 mph8 km/h from S, gusts 16 mph26 km/h | 94% | 88% | 0 |
| Mon 2p | Drizzle | 57°14° (likely 50°10° to 58°14°) | 57°14° | 80%, 0.04 in1 mm | 5 mph8 km/h from SSW, gusts 16 mph25 km/h | 91% | 88% | 0 |
| Mon 3p | Rain | 57°14° (likely 50°10° to 59°15°) | 57°14° | 80%, 0.04 in1 mm | 5 mph8 km/h from SSW, gusts 14 mph23 km/h | 89% | 68% | 0 |
| Mon 4p | Drizzle | 58°14° (likely 50°10° to 58°14°) | 58°14° | 80%, 0.04 in1 mm | 5 mph8 km/h from SSW, gusts 12 mph20 km/h | 88% | 67% | 0 |
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Official NWS forecast
Today: Partly sunny. High near 62, with temperatures falling to around 60 in the afternoon. South southeast wind around 1 mph.
Tonight: Mostly cloudy. Low around 41, with temperatures rising to around 43 overnight. East northeast wind around 2 mph. New rainfall amounts less than a tenth of an inch possible.
Forecasts agreeIndependent forecasts are close; the range is narrow.
Best day outdoors this week: the one dry, mild day the forecasts agree on (high 62°17°).
Morning
6 AM–noon
70% chance · 0.44 in11 mm
Afternoon
noon–6 PM
70% chance · 0.79 in20 mm
Evening
6 PM–midnight
80% chance · 0.5 in13 mm
Overnight
midnight–6 AM
90% chance · 0.37 in9.4 mm
Official NWS forecast
Day: Rain likely. Mostly cloudy. High near 60, with temperatures falling to around 57 in the afternoon. South wind 1 to 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Night: Rain. Cloudy, with a low around 46. South southeast wind 2 to 6 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
90% chance · 0.64 in16 mm
Afternoon
noon–6 PM
80% chance · 0.22 in5.6 mm
Evening
6 PM–midnight
60% chance · 0.02 in0.5 mm
Overnight
midnight–6 AM
60% chance · 0.02 in0.5 mm
Official NWS forecast
Day: Rain. Mostly cloudy, with a high near 60. South wind 2 to 6 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
Night: A chance of rain before 9pm, then rain likely and patchy fog. Mostly cloudy, with a low around 45. Chance of precipitation is 60%.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
60% chance · 0.04 in1.1 mm
Afternoon
noon–6 PM
50% chance · 0.06 in1.4 mm
Evening
6 PM–midnight
40% chance · 0.02 in0.4 mm
Overnight
midnight–6 AM
40% chance · 0.01 in0.3 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Rain likely and patchy fog. Mostly cloudy, with a high near 61.
Night: A chance of rain before 11pm, then a chance of rain and patchy fog between 11pm and midnight, then areas of fog and a chance of rain between midnight and 1am, then rain likely and patchy fog. Mostly cloudy, with a low around 43.
Forecasts agreeIndependent forecasts are close; the range is narrow.
Morning
6 AM–noon
70% chance · 0.13 in3.3 mm
Afternoon
noon–6 PM
80% chance · 0.09 in2.4 mm
Evening
6 PM–midnight
60% chance · 0.02 in0.5 mm
Overnight
midnight–6 AM
60% chance · 0.06 in1.6 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Rain. Mostly cloudy, with a high near 58.
Night: Rain likely. Mostly cloudy, with a low around 40.
Forecasts agreeIndependent forecasts are close; the range is narrow.
Morning
6 AM–noon
50% chance · 0.09 in2.4 mm
Afternoon
noon–6 PM
60% chance · 0.08 in2 mm
Evening
6 PM–midnight
50% chance · 0.02 in0.5 mm
Overnight
midnight–6 AM
30% chance · 0.02 in0.6 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Rain likely. Mostly cloudy, with a high near 57.
Night: A chance of rain. Mostly cloudy, with a low around 37.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
30% chance · 0.02 in0.6 mm
Afternoon
noon–6 PM
30% chance · 0.05 in1.4 mm
Evening
6 PM–midnight
20% chance · 0.03 in0.7 mm
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain before 5pm. Partly sunny, with a high near 58.
Night: Mostly cloudy, with a low around 36.
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
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
20% chance · 0.05 in1.2 mm
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.
Dry, high 62°, low 41°.
68% chance of rain, high 60°, low 46°.
86% chance of rain, high 60°, low 45°.
Highs 51–61°; chance of precipitation on Tuesday, Wednesday, Thursday.
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 5 AM
Reading from Sat 4:10 PM · NWS gauge page
Forecast peak 56.0 ft Thu 5 AM
Reading from Sat 4:10 PM · NWS gauge page
Forecast peak 7.0 ft Wed 7 PM
Reading from Sat 3:15 PM · NWS gauge page
Forecast peak 23.1 ft Thu 11 AM
Reading from Sat 3 PM · NWS gauge page
What this week’s weather means for heating, cooling, pipes and fresh air.
About 69% 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.
Dry air outside (dew point 39°F).
No stretch in the next few days is comfortable enough outside, by temperature, dew point and air quality.
Today’s expected high is 3°2° warmer than typical.
On average 4°2° warmer than normal (daily mean temperature).
Rivergrove weather by month: normals, records, snow and freeze dates
Sunrise 7:39 AM, sunset 6:10 PM.
Clouds most of the night (about 76% cover).
Waxing gibbous
98% lit · growing