Lewis River at Yale Reservoir
1.2 mi- Level
- 473 ft
Reading from Sat 2 AM · NWS gauge page
Appearance
Ends in 6 h 46 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 2:55 AM PDT at KKLS
Overcast and 39°4°.
Today: low 38°3° (likely 36°2° to 41°5°), high 54°12° (likely 54°12° to 65°18°).
Now 39°4°
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 3a | Mostly cloudy | 41°5° (likely 37°3° to 42°6°) | 38°3° | 0% | 5 mph8 km/h from NE, gusts 6 mph9 km/h | 69% | 32% | 0 |
| Sat 4a | Cloudy | 40°4° (likely 36°2° to 42°6°) | 37°3° | 0% | 5 mph8 km/h from ENE, gusts 6 mph10 km/h | 70% | 58% | 0 |
| Sat 5a | Cloudy | 40°4° (likely 36°2° to 42°6°) | 37°3° | 0% | 5 mph8 km/h from NE, gusts 7 mph11 km/h | 70% | 62% | 0 |
| Sat 6a | Partly cloudy | 40°4° (likely 36°2° to 42°6°) | 36°2° | 0% | 6 mph10 km/h from ENE, gusts 7 mph12 km/h | 65% | 71% | 0 |
| Sat 7a | Cloudy | 39°4° (likely 36°2° to 43°6°) | 35°2° | 0% | 6 mph10 km/h from ENE, gusts 8 mph12 km/h | 64% | 79% | 0 |
| Sat 8a | Cloudy | 40°4° (likely 37°3° to 44°7°) | 36°2° | 0% | 6 mph10 km/h from NE, gusts 8 mph12 km/h | 62% | 80% | 0 |
| Sat 9a | Cloudy | 41°5° (likely 41°5° to 46°8°) | 38°3° | 0% | 5 mph8 km/h from ENE, gusts 7 mph11 km/h | 61% | 81% | 0 |
| Sat 10a | Cloudy | 44°7° (likely 44°7° to 53°12°) | 44°7° | 0% | 2 mph3 km/h from ENE, gusts 8 mph12 km/h | 58% | 71% | 1 |
| Sat 11a | Cloudy | 47°8° (likely 47°8° to 57°14°) | 47°8° | 0% | 2 mph3 km/h from ENE, gusts 7 mph12 km/h | 51% | 83% | 1 |
| Sat 12p | Cloudy | 50°10° (likely 50°10° to 60°16°) | 50°10° | 0% | 1 mph2 km/h from E, gusts 5 mph9 km/h | 51% | 82% | 2 |
| Sat 1p | Cloudy | 52°11° (likely 52°11° to 63°17°) | 52°11° | 0% | 1 mph2 km/h from E, gusts 4 mph7 km/h | 46% | 82% | 2 |
| Sat 2p | Cloudy | 54°12° (likely 54°12° to 65°18°) | 54°12° | 0% | 1 mph2 km/h from SSE, gusts 4 mph6 km/h | 41% | 83% | 2 |
| Sat 3p | Cloudy | 54°12° (likely 54°12° to 65°18°) | 54°12° | 0% | 0 mph0 km/h, gusts 5 mph8 km/h | 40% | 83% | 1 |
| Sat 4p | Cloudy | 54°12° (likely 54°12° to 65°18°) | 54°12° | 0% | 0 mph0 km/h, gusts 5 mph9 km/h | 43% | 83% | 1 |
| Sat 5p | Cloudy | 52°11° (likely 52°11° to 62°17°) | 52°11° | 0% | 0 mph0 km/h, gusts 6 mph9 km/h | 50% | 84% | 1 |
| Sat 6p | Cloudy | 51°11° (likely 51°11° to 58°14°) | 51°11° | 0% | 0 mph0 km/h, gusts 5 mph8 km/h | 56% | 83% | 0 |
| Sat 7p | Cloudy | 49°9° (likely 49°9° to 55°13°) | 49°9° | 5% | 2 mph3 km/h from NE, gusts 5 mph7 km/h | 58% | 81% | 0 |
| Sat 8p | Cloudy | 47°8° (likely 47°8° to 55°13°) | 46°8° | 0% | 3 mph5 km/h from NE, gusts 4 mph6 km/h | 57% | 80% | 0 |
| Sat 9p | Cloudy | 46°8° (likely 45°7° to 54°12°) | 44°7° | 5% | 5 mph8 km/h from NE, gusts 4 mph6 km/h | 56% | 80% | 0 |
| Sat 10p | Cloudy | 46°8° (likely 45°7° to 53°12°) | 42°6° | 5% | 7 mph11 km/h from NE, gusts 5 mph8 km/h | 55% | 78% | 0 |
| Sat 11p | Cloudy | 46°8° (likely 44°7° to 53°12°) | 42°6° | 5% | 8 mph13 km/h from NE, gusts 6 mph9 km/h | 55% | 77% | 0 |
| Sun 12a | Cloudy | 46°8° (likely 44°7° to 52°11°) | 41°5° | 5% | 9 mph14 km/h from ENE, gusts 6 mph9 km/h | 55% | 74% | 0 |
| Sun 1a | Cloudy | 46°8° (likely 43°6° to 52°11°) | 41°5° | 5% | 9 mph14 km/h from ENE, gusts 6 mph9 km/h | 54% | 71% | 0 |
| Sun 2a | Cloudy | 46°8° (likely 43°6° to 51°11°) | 42°6° | 5% | 8 mph13 km/h from ENE, gusts 5 mph8 km/h | 54% | 69% | 0 |
| Sun 3a | Cloudy | 45°7° (likely 43°6° to 50°10°) | 41°5° | 5% | 8 mph13 km/h from ENE, gusts 6 mph9 km/h | 55% | 70% | 0 |
| Sun 4a | Cloudy | 45°7° (likely 43°6° to 50°10°) | 41°5° | 5% | 8 mph13 km/h from ENE, gusts 5 mph8 km/h | 58% | 72% | 0 |
| Sun 5a | Rain | 45°7° (likely 42°6° to 49°9°) | 41°5° | 20%, 0.04 in1 mm | 8 mph13 km/h from E, gusts 5 mph8 km/h | 60% | 57% | 0 |
| Sun 6a | Cloudy | 44°7° (likely 43°6° to 49°9°) | 39°4° | 30%, 0.04 in1 mm | 8 mph13 km/h from E, gusts 6 mph9 km/h | 59% | 65% | 0 |
| Sun 7a | Cloudy | 45°7° (likely 44°7° to 49°9°) | 41°5° | 10%, 0.04 in1 mm | 8 mph13 km/h from E, gusts 6 mph10 km/h | 61% | 86% | 0 |
| Sun 8a | Cloudy | 44°7° (likely 44°7° to 49°9°) | 39°4° | 10%, 0.04 in1 mm | 8 mph13 km/h from E, gusts 7 mph11 km/h | 62% | 89% | 0 |
| Sun 9a | Rain | 44°7° (likely 44°7° to 51°11°) | 39°4° | 20%, 0.04 in1 mm | 8 mph13 km/h from E, gusts 7 mph11 km/h | 64% | 79% | 0 |
| Sun 10a | Rain | 45°7° (likely 45°7° to 55°13°) | 41°5° | 20%, 0.04 in1 mm | 8 mph13 km/h from E, gusts 7 mph11 km/h | 66% | 86% | 1 |
| Sun 11a | Cloudy | 45°7° (likely 45°7° to 58°14°) | 43°6° | 10%, 0.25 in6.4 mm | 5 mph8 km/h from ESE, gusts 10 mph15 km/h | 64% | 93% | 2 |
| Sun 12p | Rain | 47°8° (likely 46°8° to 60°16°) | 45°7° | 30%, 0.25 in6.4 mm | 5 mph8 km/h from ESE, gusts 7 mph11 km/h | 69% | 100% | 2 |
| Sun 1p | Rain | 48°9° (likely 47°8° to 62°17°) | 46°8° | 40%, 0.25 in6.4 mm | 5 mph8 km/h from ESE, gusts 10 mph16 km/h | 66% | 100% | 3 |
| Sun 2p | Rain | 48°9° (likely 47°8° to 64°18°) | 48°9° | 60%, 0.25 in6.4 mm | 2 mph3 km/h from E, gusts 12 mph19 km/h | 64% | 100% | 3 |
| Sun 3p | Rain | 49°9° (likely 48°9° to 64°18°) | 49°9° | 70%, 0.25 in6.4 mm | 2 mph3 km/h from E, gusts 13 mph21 km/h | 63% | 100% | 2 |
| Sun 4p | Rain | 50°10° (likely 48°9° to 63°17°) | 50°10° | 70%, 0.25 in6.4 mm | 2 mph3 km/h from E, gusts 13 mph21 km/h | 64% | 60% | 2 |
| Sun 5p | Rain | 48°9° (likely 48°9° to 62°17°) | 47°8° | 70%, 0.11 in2.8 mm | 3 mph5 km/h from E, gusts 14 mph22 km/h | 68% | 60% | 1 |
| Sun 6p | Rain | 48°9° (likely 48°9° to 57°14°) | 47°8° | 70%, 0.11 in2.8 mm | 3 mph5 km/h from E, gusts 15 mph23 km/h | 73% | 60% | 0 |
| Sun 7p | Rain | 48°9° (likely 48°9° to 54°12°) | 47°8° | 70%, 0.11 in2.8 mm | 3 mph5 km/h from E, gusts 12 mph20 km/h | 73% | 60% | 0 |
| Sun 8p | Rain | 47°8° (likely 47°8° to 52°11°) | 44°7° | 70%, 0.11 in2.8 mm | 6 mph10 km/h from ESE, gusts 15 mph24 km/h | 71% | 65% | 0 |
| Sun 9p | Cloudy | 47°8° (likely 47°8° to 51°11°) | 44°7° | 70%, 0.11 in2.8 mm | 6 mph10 km/h from ESE, gusts 8 mph13 km/h | 71% | 96% | 0 |
| Sun 10p | Cloudy | 47°8° (likely 47°8° to 52°11°) | 44°7° | 70%, 0.11 in2.8 mm | 6 mph10 km/h from ESE, gusts 10 mph15 km/h | 72% | 89% | 0 |
| Sun 11p | Cloudy | 47°8° (likely 47°8° to 52°11°) | 43°6° | 70%, 0.09 in2.3 mm | 9 mph14 km/h from ESE, gusts 8 mph13 km/h | 72% | 78% | 0 |
| Mon 12a | Rain | 47°8° (likely 45°7° to 50°10°) | 43°6° | 70%, 0.09 in2.3 mm | 9 mph14 km/h from ESE, gusts 8 mph13 km/h | 71% | 64% | 0 |
| Mon 1a | Rain | 47°8° (likely 45°7° to 50°10°) | 43°6° | 70%, 0.09 in2.3 mm | 9 mph14 km/h from ESE, gusts 9 mph14 km/h | 70% | 69% | 0 |
| Mon 2a | Rain | 47°8° (likely 45°7° to 50°10°) | 43°6° | 70%, 0.09 in2.3 mm | 8 mph13 km/h from ESE, gusts 9 mph14 km/h | 70% | 74% | 0 |
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
20% chance · 0.04 in1 mm
Official NWS forecast
Today: Partly sunny. High near 54, with temperatures falling to around 52 in the afternoon. East wind 0 to 6 mph.
Tonight: Mostly cloudy. Low around 38, with temperatures rising to around 40 overnight. Northeast wind around 5 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
30% chance · 0.45 in11 mm
Afternoon
noon–6 PM
70% chance · 1.4 in35 mm
Evening
6 PM–midnight
70% chance · 0.64 in16 mm
Overnight
midnight–6 AM
70% chance · 0.36 in9.1 mm
Official NWS forecast
Day: Rain likely. Mostly cloudy, with a high near 50. East wind 2 to 8 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Night: Rain likely. Mostly cloudy, with a low around 44. East southeast wind 3 to 9 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
70% chance · 0.14 in3.5 mm
Afternoon
noon–6 PM
70% chance · 0.08 in2 mm
Evening
6 PM–midnight
60% chance · 0.02 in0.6 mm
Overnight
midnight–6 AM
60% chance · 0.13 in3.3 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Rain likely. Mostly cloudy, with a high near 49. Chance of precipitation is 70%.
Night: Rain likely. Mostly cloudy, with a low around 43.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
60% chance · 0.1 in2.6 mm
Afternoon
noon–6 PM
60% chance · 0.08 in2.1 mm
Evening
6 PM–midnight
50% chance · 0.11 in2.9 mm
Overnight
midnight–6 AM
60% chance · 0.25 in6.4 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain. Mostly cloudy, with a high near 48.
Night: Rain likely. Mostly cloudy, with a low around 42.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
70% chance · 0.3 in7.6 mm
Afternoon
noon–6 PM
70% chance · 0.26 in6.6 mm
Evening
6 PM–midnight
70% chance · 0.18 in4.5 mm
Overnight
midnight–6 AM
70% chance · 0.13 in3.4 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Rain likely. Mostly cloudy, with a high near 48.
Night: Rain likely. Mostly cloudy, with a low around 41.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
60% chance · 0.17 in4.2 mm
Afternoon
noon–6 PM
60% chance · 0.12 in3 mm
Evening
6 PM–midnight
40% chance · 0.16 in4.2 mm
Overnight
midnight–6 AM
30% chance · 0.13 in3.4 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain. Partly sunny, with a high near 47.
Night: A chance of rain. Mostly cloudy, with a low around 40.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
20% chance · 0.3 in0.7 cm
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 before 5pm. Partly sunny, with a high near 50.
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
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 54°, low 38°.
72% chance of rain, high 50°, low 44°, cooling off.
72% chance of rain, high 49°, low 43°.
Highs 47–52°; 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.
Reading from Sat 2 AM · NWS gauge page
Reading from Sat 1:30 AM · NWS gauge page
Reading from Sat 1:30 AM · NWS gauge page
Reading from Sat 2:15 AM · NWS gauge page
What this week’s weather means for heating, cooling, pipes and fresh air.
About 66% 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 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 5°3° colder than typical.
On average 7°4° warmer than normal (daily mean temperature).
Cougar weather by month: normals, records, snow and freeze dates
Sunrise 7:38 AM, sunset 6:07 PM.
Clouds most of the night (about 60% cover).
Waxing gibbous
96% lit · growing