Columbia River at Wauna
8.2 mi- Level
- 6.7 ft
Forecast peak 9.2 ft Wed 4 PM
Reading from Sat 1:06 AM · NWS gauge page
Appearance
Ends in 7 h 32 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 2:10 AM PDT at KAST
Freeze Warning. 39°4° and clear now.
Today: low 40°4° (likely 40°4° to 42°6°), high 58°14° (likely 55°13° to 58°14°).
Now 39°4°
Clear · Feels like 36°2°
No precipitation expected in the next 2 hours.
From forecast models
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Sat 2a | Fog | 42°6° (likely 41°5° to 44°7°) | 42°6° | 0% | 1 mph2 km/h from SSE, gusts 3 mph5 km/h | 96% | 77% | 0 |
| Sat 3a | Cloudy | 41°5° (likely 41°5° to 43°6°) | 41°5° | 0% | 2 mph3 km/h from SE, gusts 3 mph5 km/h | 95% | 76% | 0 |
| Sat 4a | Cloudy | 41°5° (likely 41°5° to 43°6°) | 41°5° | 0% | 2 mph3 km/h from SSE, gusts 3 mph5 km/h | 97% | 78% | 0 |
| Sat 5a | Cloudy | 40°4° (likely 40°4° to 43°6°) | 40°4° | 0% | 2 mph3 km/h from SSE, gusts 3 mph5 km/h | 97% | 78% | 0 |
| Sat 6a | Cloudy | 41°5° (likely 41°5° to 42°6°) | 41°5° | 0% | 2 mph3 km/h from SE, gusts 3 mph5 km/h | 93% | 77% | 0 |
| Sat 7a | Cloudy | 40°4° (likely 40°4° to 42°6°) | 38°3° | 0% | 3 mph5 km/h from SE, gusts 3 mph5 km/h | 92% | 79% | 0 |
| Sat 8a | Cloudy | 40°4° (likely 40°4° to 42°6°) | 38°3° | 0% | 3 mph5 km/h from SE, gusts 3 mph5 km/h | 94% | 84% | 0 |
| Sat 9a | Cloudy | 42°6° (likely 42°6° to 44°7°) | 40°4° | 0% | 3 mph5 km/h from SE, gusts 3 mph5 km/h | 91% | 85% | 0 |
| Sat 10a | Cloudy | 47°8° (likely 46°8° to 48°9°) | 47°8° | 0% | 2 mph3 km/h from ESE, gusts 4 mph7 km/h | 91% | 84% | 1 |
| Sat 11a | Cloudy | 51°11° (likely 49°9° to 53°12°) | 51°11° | 0% | 2 mph3 km/h from ENE, gusts 5 mph7 km/h | 83% | 77% | 2 |
| Sat 12p | Cloudy | 54°12° (likely 52°11° to 55°13°) | 54°12° | 0% | 2 mph3 km/h from NNE, gusts 5 mph8 km/h | 71% | 83% | 2 |
| Sat 1p | Cloudy | 57°14° (likely 53°12° to 57°14°) | 57°14° | 0% | 2 mph3 km/h from WNW, gusts 6 mph10 km/h | 65% | 84% | 3 |
| Sat 2p | Cloudy | 58°14° (likely 55°13° to 58°14°) | 58°14° | 0% | 2 mph3 km/h from WNW, gusts 6 mph9 km/h | 61% | 84% | 3 |
| Sat 3p | Cloudy | 58°14° (likely 55°13° to 58°14°) | 58°14° | 0% | 2 mph3 km/h from WNW, gusts 6 mph9 km/h | 61% | 82% | 2 |
| Sat 4p | Cloudy | 58°14° (likely 54°12° to 58°14°) | 58°14° | 0% | 1 mph2 km/h from WNW, gusts 6 mph10 km/h | 61% | 77% | 2 |
| Sat 5p | Cloudy | 57°14° (likely 53°12° to 57°14°) | 57°14° | 0% | 1 mph2 km/h from W, gusts 7 mph11 km/h | 67% | 74% | 1 |
| Sat 6p | Cloudy | 56°13° (likely 51°11° to 56°13°) | 56°13° | 5% | 0 mph0 km/h, gusts 8 mph12 km/h | 72% | 72% | 0 |
| Sat 7p | Mostly cloudy | 53°12° (likely 47°8° to 53°12°) | 53°12° | 5% | 0 mph0 km/h, gusts 7 mph11 km/h | 78% | 71% | 0 |
| Sat 8p | Mostly cloudy | 50°10° (likely 46°8° to 50°10°) | 50°10° | 5% | 1 mph2 km/h from SW, gusts 7 mph11 km/h | 83% | 71% | 0 |
| Sat 9p | Mostly cloudy | 48°9° (likely 46°8° to 48°9°) | 48°9° | 5% | 1 mph2 km/h from S, gusts 8 mph13 km/h | 85% | 74% | 0 |
| Sat 10p | Cloudy | 47°8° (likely 44°7° to 47°8°) | 46°8° | 10% | 3 mph5 km/h from SSE, gusts 7 mph12 km/h | 85% | 80% | 0 |
| Sat 11p | Cloudy | 46°8° (likely 44°7° to 47°8°) | 44°7° | 20%, 0.06 in1.5 mm | 5 mph8 km/h from SSE, gusts 7 mph11 km/h | 85% | 82% | 0 |
| Sun 12a | Cloudy | 46°8° (likely 45°7° to 47°8°) | 43°6° | 20%, 0.06 in1.5 mm | 6 mph10 km/h from SSE, gusts 6 mph10 km/h | 84% | 91% | 0 |
| Sun 1a | Rain | 46°8° (likely 45°7° to 47°8°) | 42°6° | 30%, 0.06 in1.5 mm | 7 mph11 km/h from SE, gusts 8 mph12 km/h | 83% | 62% | 0 |
| Sun 2a | Rain | 46°8° (likely 45°7° to 48°9°) | 42°6° | 40%, 0.06 in1.5 mm | 7 mph11 km/h from SE, gusts 9 mph15 km/h | 82% | 57% | 0 |
| Sun 3a | Rain | 45°7° (likely 45°7° to 48°9°) | 41°5° | 40%, 0.06 in1.5 mm | 8 mph13 km/h from SE, gusts 9 mph15 km/h | 81% | 88% | 0 |
| Sun 4a | Rain | 45°7° (likely 45°7° to 49°9°) | 41°5° | 40%, 0.06 in1.5 mm | 8 mph13 km/h from ESE, gusts 9 mph14 km/h | 83% | 96% | 0 |
| Sun 5a | Rain | 45°7° (likely 45°7° to 49°9°) | 41°5° | 80%, 0.21 in5.3 mm | 8 mph13 km/h from ESE, gusts 9 mph15 km/h | 84% | 100% | 0 |
| Sun 6a | Rain | 44°7° (likely 44°7° to 49°9°) | 39°4° | 70%, 0.21 in5.3 mm | 8 mph13 km/h from ESE, gusts 8 mph13 km/h | 84% | 100% | 0 |
| Sun 7a | Rain | 45°7° (likely 45°7° to 50°10°) | 41°5° | 40%, 0.21 in5.3 mm | 8 mph13 km/h from ESE, gusts 12 mph19 km/h | 85% | 100% | 0 |
| Sun 8a | Rain | 45°7° (likely 45°7° to 50°10°) | 40°4° | 60%, 0.21 in5.3 mm | 9 mph14 km/h from ESE, gusts 10 mph16 km/h | 89% | 100% | 0 |
| Sun 9a | Cloudy | 45°7° (likely 45°7° to 50°10°) | 40°4° | 70%, 0.21 in5.3 mm | 9 mph14 km/h from ESE, gusts 11 mph18 km/h | 96% | 99% | 0 |
| Sun 10a | Rain | 48°9° (likely 48°9° to 51°11°) | 44°7° | 90%, 0.21 in5.3 mm | 9 mph14 km/h from ESE, gusts 11 mph17 km/h | 97% | 97% | 0 |
| Sun 11a | Cloudy | 51°11° (likely 49°9° to 52°11°) | 51°11° | 90%, 0.12 in3 mm | 8 mph13 km/h from ESE, gusts 14 mph22 km/h | 95% | 96% | 0 |
| Sun 12p | Cloudy | 53°12° (likely 51°11° to 53°12°) | 53°12° | 70%, 0.12 in3 mm | 8 mph13 km/h from ESE, gusts 14 mph23 km/h | 88% | 94% | 0 |
| Sun 1p | Drizzle | 54°12° (likely 52°11° to 54°12°) | 54°12° | 60%, 0.12 in3 mm | 8 mph13 km/h from ESE, gusts 17 mph27 km/h | 85% | 95% | 1 |
| Sun 2p | Drizzle | 55°13° (likely 53°12° to 55°13°) | 55°13° | 70%, 0.12 in3 mm | 7 mph11 km/h from SE, gusts 21 mph34 km/h | 84% | 77% | 0 |
| Sun 3p | Rain | 55°13° (likely 53°12° to 55°13°) | 55°13° | 70%, 0.12 in3 mm | 7 mph11 km/h from SE, gusts 19 mph30 km/h | 82% | 84% | 0 |
| Sun 4p | Drizzle | 56°13° (likely 53°12° to 56°13°) | 56°13° | 80%, 0.12 in3 mm | 7 mph11 km/h from SE, gusts 18 mph29 km/h | 82% | 94% | 1 |
| Sun 5p | Rain | 54°12° (likely 52°11° to 54°12°) | 54°12° | 80%, 0.05 in1.3 mm | 7 mph11 km/h from SE, gusts 17 mph27 km/h | 89% | 95% | 0 |
| Sun 6p | Rain | 54°12° (likely 51°11° to 54°12°) | 54°12° | 80%, 0.05 in1.3 mm | 7 mph11 km/h from SE, gusts 23 mph36 km/h | 90% | 95% | 0 |
| Sun 7p | Cloudy | 53°12° (likely 50°10° to 53°12°) | 53°12° | 80%, 0.05 in1.3 mm | 7 mph11 km/h from SE, gusts 17 mph28 km/h | 91% | 94% | 0 |
| Sun 8p | Drizzle | 51°11° (likely 51°11° to 52°11°) | 51°11° | 80%, 0.05 in1.3 mm | 8 mph13 km/h from SE, gusts 20 mph32 km/h | 92% | 97% | 0 |
| Sun 9p | Drizzle | 50°10° (likely 50°10° to 52°11°) | 47°8° | 80%, 0.05 in1.3 mm | 8 mph13 km/h from SE, gusts 18 mph28 km/h | 92% | 96% | 0 |
| Sun 10p | Rain | 50°10° (likely 49°9° to 52°11°) | 47°8° | 80%, 0.05 in1.3 mm | 8 mph13 km/h from SE, gusts 18 mph30 km/h | 92% | 96% | 0 |
| Sun 11p | Rain | 49°9° (likely 49°9° to 53°12°) | 44°7° | 70%, 0.01 in0.3 mm | 12 mph19 km/h from ESE, gusts 19 mph30 km/h | 92% | 99% | 0 |
| Mon 12a | Rain | 49°9° (likely 46°8° to 53°12°) | 44°7° | 70%, 0.01 in0.3 mm | 12 mph19 km/h from ESE, gusts 16 mph26 km/h | 91% | 98% | 0 |
| Mon 1a | Rain | 48°9° (likely 47°8° to 53°12°) | 43°6° | 70%, 0.01 in0.3 mm | 12 mph19 km/h from ESE, gusts 17 mph27 km/h | 90% | 90% | 0 |
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
80% chance · 0.51 in13 mm
Official NWS forecast
Today: Mostly cloudy, with a high near 58. East northeast wind around 3 mph.
Tonight: Patchy fog before 3am. Mostly cloudy, with a low around 40. South southeast wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
90% chance · 1.2 in30 mm
Afternoon
noon–6 PM
80% chance · 0.65 in17 mm
Evening
6 PM–midnight
80% chance · 0.26 in6.6 mm
Overnight
midnight–6 AM
70% chance · 0.05 in1.2 mm
Official NWS forecast
Day: Rain. Cloudy, with a high near 56. East southeast wind around 9 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Night: Rain. Mostly cloudy, with a low around 46. Southeast wind 7 to 12 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
Forecasts agreeIndependent forecasts are close; the range is narrow.
Morning
6 AM–noon
60% chance · 0.02 in0.5 mm
Afternoon
noon–6 PM
40% chance · 0.03 in0.7 mm
Evening
6 PM–midnight
30% chance
Overnight
midnight–6 AM
30% chance · 0.01 in0.4 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain before 5pm. Partly sunny, with a high near 59. Chance of precipitation is 50%.
Night: A slight chance of rain after 5am. Mostly cloudy, with a low around 45.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
30% chance · 0.06 in1.6 mm
Afternoon
noon–6 PM
40% chance · 0.05 in1.2 mm
Evening
6 PM–midnight
40% chance · 0.07 in1.8 mm
Overnight
midnight–6 AM
60% chance · 0.18 in4.6 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain. Mostly cloudy, with a high near 58.
Night: Rain likely. Mostly cloudy, with a low around 43.
Forecasts agreeIndependent forecasts are close; the range is narrow.
Morning
6 AM–noon
60% chance · 0.16 in4 mm
Afternoon
noon–6 PM
60% chance · 0.16 in4.2 mm
Evening
6 PM–midnight
50% chance · 0.06 in1.5 mm
Overnight
midnight–6 AM
50% chance · 0.09 in2.2 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Rain likely. Mostly cloudy, with a high near 56.
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 in1.9 mm
Afternoon
noon–6 PM
40% chance · 0.13 in3.4 mm
Evening
6 PM–midnight
20% chance · 0.08 in1.9 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 56.
Night: A slight chance of rain before 5am. Mostly cloudy, with a low around 39.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
20% chance · 0.02 in0.5 mm
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 57.
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.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
20% chance
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
20% chance
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 58°, low 40°.
88% chance of rain, high 56°, low 46°.
53% chance of rain, high 59°, low 45°, warming up.
Highs 52–58°; 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 9.2 ft Wed 4 PM
Reading from Sat 1:06 AM · NWS gauge page
Forecast peak 4.0 ft Thu 11 AM
Reading from Sat 12:30 AM · NWS gauge page
Reading from Sat 1:06 AM · NWS gauge page
Reading from Sat 1 AM · 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. About 7 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 about typical for the date.
On average 1°0° colder than normal (daily mean temperature).
Knappa weather by month: normals, records, snow and freeze dates
Sunrise 7:44 AM, sunset 6:12 PM.
Clouds most of the night (about 78% cover).
Waxing gibbous
96% lit · growing