Alsea River near Tidewater
13 mi- Level
- 1.1 ft
- Flow
- 65 cfs
Forecast peak 1.6 ft Mon 11 PM
Reading from Sat 5 AM · NWS gauge page
Appearance
Ends in 3 h 16 min
Issued for this forecast zone · National Weather Service Portland OR
What
Temperatures of 33 to 36 degrees will result in frost formation.
Impacts
Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.
Precautionary actions
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, or temporarily covering sensitive plants with a lightweight cotton fabric (i.e., bedsheets, thin blankets), as this will help retain heat and provide frost protection for your plants.
Areas: Clatsop County Coast; Tillamook County Coast; Central Coast of Oregon; Central Oregon Coast Range Lowlands; Central Oregon Coast Range; Lower Columbia River; Tualatin Valley; Inner Portland Metro; East Portland Metro; Outer Southeast Portland Metro; West Columbia River Gorge of Oregon above 500 ft; Clackamas County Cascade Foothills; Willapa Hills; Cowlitz County Lowlands; North Clark County Lowlands; Inner Vancouver Metro; East Clark County Lowlands; South Washington Cascade Foothills
See it on weather.gov (opens in a new tab)Observed 6:15 AM PDT at KONP
Clear and 39°4°.
Today: low 43°6° (likely 38°3° to 43°6°), high 54°12° (likely 54°12° to 59°15°).
Now 39°4°
Clear · Feels like 34°1°
No precipitation expected in the next 2 hours.
From forecast models
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Sat 6a | Cloudy | 41°5° (likely 39°4° to 42°6°) | 41°5° | 0% | 1 mph2 km/h from NE, gusts 6 mph9 km/h | 91% | 78% | 0 |
| Sat 7a | Cloudy | 41°5° (likely 39°4° to 42°6°) | 41°5° | 0% | 1 mph2 km/h from NE, gusts 6 mph9 km/h | 93% | 73% | 0 |
| Sat 8a | Cloudy | 41°5° (likely 39°4° to 42°6°) | 41°5° | 0% | 2 mph3 km/h from ENE, gusts 6 mph9 km/h | 93% | 82% | 0 |
| Sat 9a | Cloudy | 43°6° (likely 41°5° to 45°7°) | 43°6° | 0% | 2 mph3 km/h from ENE, gusts 5 mph8 km/h | 93% | 82% | 0 |
| Sat 10a | Cloudy | 48°9° (likely 47°8° to 51°11°) | 48°9° | 0% | 2 mph3 km/h from NE, gusts 4 mph7 km/h | 88% | 80% | 1 |
| Sat 11a | Cloudy | 50°10° (likely 50°10° to 55°13°) | 50°10° | 0% | 2 mph3 km/h from NNE, gusts 3 mph6 km/h | 83% | 81% | 2 |
| Sat 12p | Cloudy | 52°11° (likely 52°11° to 57°14°) | 52°11° | 0% | 3 mph5 km/h from NNW, gusts 3 mph5 km/h | 80% | 81% | 3 |
| Sat 1p | Cloudy | 52°11° (likely 52°11° to 58°14°) | 52°11° | 0% | 5 mph8 km/h from NNW, gusts 6 mph10 km/h | 80% | 63% | 3 |
| Sat 2p | Cloudy | 54°12° (likely 54°12° to 58°14°) | 54°12° | 0% | 6 mph10 km/h from NNW, gusts 8 mph13 km/h | 76% | 64% | 3 |
| Sat 3p | Cloudy | 54°12° (likely 54°12° to 58°14°) | 54°12° | 0% | 6 mph10 km/h from NNW, gusts 9 mph14 km/h | 76% | 77% | 3 |
| Sat 4p | Cloudy | 54°12° (likely 53°12° to 56°13°) | 54°12° | 0% | 5 mph8 km/h from NNW, gusts 8 mph13 km/h | 80% | 81% | 2 |
| Sat 5p | Cloudy | 53°12° (likely 52°11° to 55°13°) | 53°12° | 0% | 5 mph8 km/h from NNW, gusts 6 mph10 km/h | 84% | 84% | 1 |
| Sat 6p | Cloudy | 52°11° (likely 50°10° to 53°12°) | 52°11° | 0% | 2 mph3 km/h from N, gusts 5 mph9 km/h | 88% | 84% | 0 |
| Sat 7p | Cloudy | 50°10° (likely 48°9° to 50°10°) | 50°10° | 0% | 0 mph0 km/h, gusts 5 mph8 km/h | 92% | 82% | 0 |
| Sat 8p | Cloudy | 47°8° (likely 47°8° to 50°10°) | 47°8° | 0% | 0 mph0 km/h, gusts 3 mph5 km/h | 93% | 83% | 0 |
| Sat 9p | Cloudy | 46°8° (likely 46°8° to 49°9°) | 46°8° | 0% | 0 mph0 km/h, gusts 3 mph5 km/h | 93% | 85% | 0 |
| Sat 10p | Cloudy | 45°7° (likely 44°7° to 49°9°) | 45°7° | 0% | 0 mph0 km/h, gusts 4 mph7 km/h | 93% | 82% | 0 |
| Sat 11p | Cloudy | 45°7° (likely 45°7° to 49°9°) | 45°7° | 0% | 0 mph0 km/h, gusts 5 mph9 km/h | 93% | 81% | 0 |
| Sun 12a | Cloudy | 44°7° (likely 44°7° to 48°9°) | 44°7° | 0% | 0 mph0 km/h, gusts 7 mph11 km/h | 91% | 77% | 0 |
| Sun 1a | Cloudy | 44°7° (likely 44°7° to 48°9°) | 44°7° | 0% | 1 mph2 km/h from SSE, gusts 7 mph11 km/h | 91% | 69% | 0 |
| Sun 2a | Cloudy | 45°7° (likely 45°7° to 49°9°) | 44°7° | 5% | 3 mph5 km/h from SSE, gusts 8 mph13 km/h | 91% | 65% | 0 |
| Sun 3a | Cloudy | 45°7° (likely 45°7° to 50°10°) | 44°7° | 5% | 3 mph5 km/h from SSE, gusts 9 mph14 km/h | 91% | 67% | 0 |
| Sun 4a | Mostly cloudy | 45°7° (likely 45°7° to 50°10°) | 42°6° | 10% | 6 mph10 km/h from SSE, gusts 9 mph14 km/h | 91% | 65% | 0 |
| Sun 5a | Cloudy | 45°7° (likely 45°7° to 51°11°) | 40°4° | 40%, 0.11 in2.8 mm | 9 mph14 km/h from SSE, gusts 9 mph15 km/h | 91% | 97% | 0 |
| Sun 6a | Cloudy | 44°7° (likely 44°7° to 53°12°) | 39°4° | 50%, 0.11 in2.8 mm | 9 mph14 km/h from SSE, gusts 15 mph24 km/h | 90% | 100% | 0 |
| Sun 7a | Cloudy | 46°8° (likely 46°8° to 53°12°) | 41°5° | 30%, 0.11 in2.8 mm | 9 mph14 km/h from SSE, gusts 15 mph25 km/h | 91% | 100% | 0 |
| Sun 8a | Rain | 46°8° (likely 46°8° to 53°12°) | 40°4° | 40%, 0.11 in2.8 mm | 13 mph21 km/h from S, gusts 17 mph27 km/h | 92% | 100% | 0 |
| Sun 9a | Rain | 46°8° (likely 46°8° to 53°12°) | 40°4° | 50%, 0.11 in2.8 mm | 13 mph21 km/h from S, gusts 17 mph27 km/h | 99% | 100% | 0 |
| Sun 10a | Rain | 50°10° (likely 50°10° to 54°12°) | 45°7° | 60%, 0.11 in2.8 mm | 13 mph21 km/h from S, gusts 24 mph38 km/h | 98% | 100% | 0 |
| Sun 11a | Rain | 51°11° (likely 51°11° to 55°13°) | 51°11° | 70%, 0.22 in5.6 mm | 15 mph24 km/h from S, gusts 26 mph42 km/h | 97% | 100% | 1 |
| Sun 12p | Rain | 52°11° (likely 52°11° to 55°13°) | 52°11° | 70%, 0.22 in5.6 mm | 15 mph24 km/h from S, gusts 28 mph45 km/h | 98% | 97% | 2 |
| Sun 1p | Rain | 52°11° (likely 52°11° to 56°13°) | 52°11° | 70%, 0.22 in5.6 mm | 15 mph24 km/h from S, gusts 30 mph47 km/h | 99% | 92% | 1 |
| Sun 2p | Rain | 53°12° (likely 53°12° to 56°13°) | 53°12° | 60%, 0.22 in5.6 mm | 15 mph24 km/h from SSW, gusts 29 mph47 km/h | 97% | 92% | 0 |
| Sun 3p | Rain | 53°12° (likely 52°11° to 56°13°) | 53°12° | 60%, 0.22 in5.6 mm | 15 mph24 km/h from SSW, gusts 32 mph51 km/h | 96% | 91% | 0 |
| Sun 4p | Rain | 54°12° (likely 52°11° to 55°13°) | 54°12° | 90%, 0.22 in5.6 mm | 15 mph24 km/h from SSW, gusts 29 mph47 km/h | 97% | 79% | 0 |
| Sun 5p | Drizzle | 53°12° (likely 53°12° to 55°13°) | 53°12° | 90%, 0.12 in3 mm | 14 mph23 km/h from SSW, gusts 29 mph46 km/h | 99% | 82% | 0 |
| Sun 6p | Rain | 52°11° (likely 52°11° to 54°12°) | 52°11° | 90%, 0.12 in3 mm | 14 mph23 km/h from SSW, gusts 21 mph34 km/h | 99% | 90% | 0 |
| Sun 7p | Cloudy | 51°11° (likely 51°11° to 54°12°) | 51°11° | 90%, 0.12 in3 mm | 14 mph23 km/h from SSW, gusts 20 mph31 km/h | 99% | 96% | 0 |
| Sun 8p | Cloudy | 50°10° (likely 50°10° to 54°12°) | 46°8° | 90%, 0.12 in3 mm | 12 mph19 km/h from S, gusts 20 mph32 km/h | 99% | 100% | 0 |
| Sun 9p | Drizzle | 50°10° (likely 50°10° to 54°12°) | 46°8° | 90%, 0.12 in3 mm | 12 mph19 km/h from S, gusts 25 mph40 km/h | 99% | 100% | 0 |
| Sun 10p | Rain | 49°9° (likely 49°9° to 54°12°) | 44°7° | 90%, 0.12 in3 mm | 12 mph19 km/h from S, gusts 27 mph44 km/h | 100% | 100% | 0 |
| Sun 11p | Rain | 49°9° (likely 49°9° to 53°12°) | 44°7° | 90%, 0.12 in3 mm | 12 mph19 km/h from S, gusts 23 mph38 km/h | 100% | 99% | 0 |
| Mon 12a | Rain | 49°9° (likely 49°9° to 54°12°) | 44°7° | 90%, 0.12 in3 mm | 12 mph19 km/h from S, gusts 20 mph33 km/h | 100% | 99% | 0 |
| Mon 1a | Rain | 49°9° (likely 49°9° to 54°12°) | 44°7° | 90%, 0.12 in3 mm | 12 mph19 km/h from S, gusts 21 mph33 km/h | 99% | 99% | 0 |
| Mon 2a | Rain | 49°9° (likely 49°9° to 54°12°) | 45°7° | 90%, 0.12 in3 mm | 9 mph14 km/h from S, gusts 18 mph29 km/h | 99% | 94% | 0 |
| Mon 3a | Rain | 49°9° (likely 49°9° to 54°12°) | 45°7° | 90%, 0.12 in3 mm | 9 mph14 km/h from S, gusts 18 mph28 km/h | 99% | 97% | 0 |
| Mon 4a | Rain | 48°9° (likely 48°9° to 54°12°) | 44°7° | 90%, 0.12 in3 mm | 9 mph14 km/h from S, gusts 19 mph31 km/h | 100% | 100% | 0 |
| Mon 5a | Rain | 48°9° (likely 48°9° to 54°12°) | 44°7° | 80%, 0.1 in2.5 mm | 9 mph14 km/h from S, gusts 19 mph30 km/h | 100% | 99% | 0 |
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
40% chance · 0.11 in2.8 mm
Official NWS forecast
Today: Partly sunny, with a high near 54. Northeast wind 1 to 6 mph.
Tonight: A chance of rain after 5am. Mostly cloudy. Low around 43, with temperatures rising to around 45 overnight. East northeast wind 0 to 9 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
70% chance · 0.77 in20 mm
Afternoon
noon–6 PM
90% chance · 1.2 in31 mm
Evening
6 PM–midnight
90% chance · 0.72 in18 mm
Overnight
midnight–6 AM
90% chance · 0.7 in18 mm
Official NWS forecast
Day: Rain. Cloudy, with a high near 54. South wind 9 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Night: Rain. Cloudy, with a low around 47. South wind 9 to 14 mph, with gusts as high as 22 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
100% chance · 0.3 in7.7 mm
Afternoon
noon–6 PM
90% chance · 0.13 in3.3 mm
Evening
6 PM–midnight
60% chance · 0.01 in0.4 mm
Overnight
midnight–6 AM
50% chance · 0.04 in1 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Rain. Mostly cloudy, with a high near 53. Southwest wind 8 to 13 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
Night: A chance of rain before 11pm, then a chance of rain and patchy fog between 11pm and 5am, then patchy fog and a slight chance of rain. Mostly cloudy, with a low around 46. Chance of precipitation is 50%.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
50% chance · 0.06 in1.6 mm
Afternoon
noon–6 PM
40% chance · 0.03 in0.7 mm
Evening
6 PM–midnight
20% chance
Overnight
midnight–6 AM
50% chance · 0.08 in2 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Patchy fog and a slight chance of rain before 5pm. Mostly cloudy, with a high near 54.
Night: A chance of rain after 11pm. Mostly cloudy, with a low around 43.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
60% chance · 0.09 in2.2 mm
Afternoon
noon–6 PM
60% chance · 0.06 in1.6 mm
Evening
6 PM–midnight
50% chance · 0.03 in0.8 mm
Overnight
midnight–6 AM
60% chance · 0.04 in0.9 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain. Mostly cloudy, with a high near 54.
Night: A chance of rain. Mostly cloudy, with a low around 43.
Forecasts agreeIndependent forecasts are close; the range is narrow.
Morning
6 AM–noon
50% chance · 0.03 in0.7 mm
Afternoon
noon–6 PM
50% chance · 0.11 in2.8 mm
Evening
6 PM–midnight
30% chance · 0.08 in2.1 mm
Overnight
midnight–6 AM
30% chance · 0.04 in1 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain. Partly sunny, with a high near 54.
Night: A slight chance of rain. Mostly cloudy, with a low around 41.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
30% chance
Afternoon
noon–6 PM
30% chance · 0.05 in1.4 mm
Evening
6 PM–midnight
30% 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 11am. Partly sunny, with a high near 55.
Night: Mostly cloudy, with a low around 41.
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
Dry
Afternoon
noon–6 PM
30% chance · 0.07 in1.8 mm
Evening
6 PM–midnight
30% 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 54°, low 43°.
92% chance of rain, high 54°, low 47°.
84% chance of rain, high 53°, low 46°.
Highs 53–57°; 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 1.6 ft Mon 11 PM
Reading from Sat 5 AM · NWS gauge page
Forecast peak 2.3 ft Thu 11 AM
Reading from Sat 5:30 AM · NWS gauge page
Reading from Sat 5:15 AM · NWS gauge page
Reading from Sat 5:15 AM · 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 2 hours are near freezing and damp, when outdoor units defrost more often.
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 5°3° colder than typical.
Bayshore weather by month: normals, records, snow and freeze dates
Sunrise 7:43 AM, sunset 6:16 PM.
Clouds most of the night (about 76% cover).
Waxing gibbous
97% lit · growing