Cowlitz River at Kelso
3.1 mi- Level
- 10.0 ft
Forecast peak 10.0 ft Sat 5 AM
Reading from Sat 2:06 AM · NWS gauge page
Appearance
Ends in 6 h 50 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 37°3° (likely 33°1° to 39°4°), high 57°14° (likely 55°13° to 59°15°).
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 | Cloudy | 40°4° (likely 35°2° to 40°4°) | 40°4° | 0% | 1 mph2 km/h from NNE, gusts 5 mph8 km/h | 92% | 81% | 0 |
| Sat 4a | Cloudy | 39°4° (likely 34°1° to 40°4°) | 39°4° | 0% | 0 mph0 km/h, gusts 5 mph8 km/h | 94% | 85% | 0 |
| Sat 5a | Cloudy | 39°4° (likely 33°1° to 39°4°) | 39°4° | 0% | 1 mph2 km/h from N, gusts 5 mph7 km/h | 93% | 85% | 0 |
| Sat 6a | Cloudy | 39°4° (likely 34°1° to 39°4°) | 39°4° | 0% | 1 mph2 km/h from N, gusts 4 mph6 km/h | 93% | 86% | 0 |
| Sat 7a | Fog | 37°3° (likely 34°1° to 39°4°) | 37°3° | 0% | 1 mph2 km/h from N, gusts 2 mph3 km/h | 95% | 87% | 0 |
| Sat 8a | Fog | 37°3° (likely 34°1° to 40°4°) | 37°3° | 0% | 1 mph2 km/h from NNE, gusts 2 mph3 km/h | 95% | 88% | 0 |
| Sat 9a | Fog | 39°4° (likely 36°2° to 41°5°) | 39°4° | 0% | 1 mph2 km/h from N, gusts 2 mph3 km/h | 95% | 88% | 0 |
| Sat 10a | Fog | 42°6° (likely 41°5° to 44°7°) | 42°6° | 0% | 1 mph2 km/h from N, gusts 2 mph3 km/h | 95% | 89% | 1 |
| Sat 11a | Cloudy | 44°7° (likely 44°7° to 48°9°) | 44°7° | 0% | 1 mph2 km/h from N, gusts 4 mph6 km/h | 88% | 83% | 2 |
| Sat 12p | Cloudy | 48°9° (likely 48°9° to 52°11°) | 48°9° | 0% | 1 mph2 km/h from SSW, gusts 6 mph9 km/h | 80% | 82% | 2 |
| Sat 1p | Cloudy | 53°12° (likely 52°11° to 55°13°) | 53°12° | 0% | 1 mph2 km/h from SSW, gusts 8 mph12 km/h | 69% | 84% | 3 |
| Sat 2p | Cloudy | 55°13° (likely 54°12° to 57°14°) | 55°13° | 0% | 2 mph3 km/h from SW, gusts 7 mph12 km/h | 62% | 84% | 3 |
| Sat 3p | Cloudy | 57°14° (likely 55°13° to 59°15°) | 57°14° | 0% | 2 mph3 km/h from SW, gusts 7 mph11 km/h | 57% | 84% | 2 |
| Sat 4p | Cloudy | 57°14° (likely 55°13° to 59°15°) | 57°14° | 0% | 1 mph2 km/h from SW, gusts 6 mph9 km/h | 55% | 82% | 2 |
| Sat 5p | Cloudy | 55°13° (likely 54°12° to 58°14°) | 55°13° | 0% | 1 mph2 km/h from W, gusts 4 mph7 km/h | 62% | 81% | 1 |
| Sat 6p | Cloudy | 54°12° (likely 51°11° to 54°12°) | 54°12° | 0% | 0 mph0 km/h, gusts 6 mph10 km/h | 66% | 78% | 0 |
| Sat 7p | Cloudy | 52°11° (likely 47°8° to 52°11°) | 52°11° | 0% | 0 mph0 km/h, gusts 7 mph12 km/h | 70% | 76% | 0 |
| Sat 8p | Cloudy | 49°9° (likely 44°7° to 49°9°) | 49°9° | 0% | 1 mph2 km/h from WNW, gusts 6 mph10 km/h | 75% | 74% | 0 |
| Sat 9p | Cloudy | 48°9° (likely 43°6° to 48°9°) | 48°9° | 0% | 1 mph2 km/h from W, gusts 6 mph10 km/h | 77% | 75% | 0 |
| Sat 10p | Cloudy | 46°8° (likely 41°5° to 46°8°) | 46°8° | 0% | 1 mph2 km/h from SSW, gusts 5 mph8 km/h | 81% | 77% | 0 |
| Sat 11p | Cloudy | 45°7° (likely 39°4° to 45°7°) | 45°7° | 5%, 0.02 in0.5 mm | 2 mph3 km/h from S, gusts 6 mph9 km/h | 81% | 79% | 0 |
| Sun 12a | Cloudy | 46°8° (likely 37°3° to 46°8°) | 44°7° | 5%, 0.02 in0.5 mm | 5 mph8 km/h from S, gusts 5 mph8 km/h | 76% | 79% | 0 |
| Sun 1a | Cloudy | 45°7° (likely 38°3° to 45°7°) | 41°5° | 5%, 0.02 in0.5 mm | 7 mph11 km/h from S, gusts 5 mph8 km/h | 78% | 79% | 0 |
| Sun 2a | Cloudy | 45°7° (likely 38°3° to 45°7°) | 40°4° | 10%, 0.02 in0.5 mm | 9 mph14 km/h from S, gusts 5 mph8 km/h | 78% | 79% | 0 |
| Sun 3a | Cloudy | 44°7° (likely 38°3° to 44°7°) | 38°3° | 10%, 0.02 in0.5 mm | 12 mph19 km/h from S, gusts 5 mph8 km/h | 77% | 84% | 0 |
| Sun 4a | Rain | 44°7° (likely 40°4° to 44°7°) | 38°3° | 20%, 0.02 in0.5 mm | 13 mph21 km/h from S, gusts 8 mph12 km/h | 79% | 70% | 0 |
| Sun 5a | Rain | 44°7° (likely 41°5° to 44°7°) | 37°3° | 70%, 0.17 in4.3 mm | 14 mph23 km/h from SSE, gusts 9 mph14 km/h | 79% | 89% | 0 |
| Sun 6a | Rain | 43°6° (likely 39°4° to 44°7°) | 36°2° | 70%, 0.17 in4.3 mm | 14 mph23 km/h from SSE, gusts 10 mph17 km/h | 80% | 80% | 0 |
| Sun 7a | Rain | 43°6° (likely 40°4° to 45°7°) | 36°2° | 30%, 0.17 in4.3 mm | 14 mph23 km/h from SSE, gusts 11 mph18 km/h | 82% | 100% | 0 |
| Sun 8a | Rain | 43°6° (likely 40°4° to 45°7°) | 36°2° | 30%, 0.17 in4.3 mm | 13 mph21 km/h from SSE, gusts 13 mph21 km/h | 84% | 100% | 0 |
| Sun 9a | Rain | 44°7° (likely 44°7° to 46°8°) | 38°3° | 40%, 0.17 in4.3 mm | 13 mph21 km/h from SSE, gusts 16 mph26 km/h | 88% | 100% | 0 |
| Sun 10a | Rain | 45°7° (likely 44°7° to 48°9°) | 39°4° | 40%, 0.17 in4.3 mm | 13 mph21 km/h from SSE, gusts 21 mph34 km/h | 91% | 100% | 1 |
| Sun 11a | Rain | 46°8° (likely 45°7° to 51°11°) | 41°5° | 70%, 0.11 in2.8 mm | 10 mph16 km/h from SSE, gusts 21 mph34 km/h | 92% | 100% | 1 |
| Sun 12p | Cloudy | 48°9° (likely 46°8° to 54°12°) | 43°6° | 80%, 0.11 in2.8 mm | 10 mph16 km/h from SSE, gusts 19 mph31 km/h | 92% | 99% | 0 |
| Sun 1p | Cloudy | 50°10° (likely 47°8° to 56°13°) | 46°8° | 80%, 0.11 in2.8 mm | 10 mph16 km/h from SSE, gusts 17 mph28 km/h | 88% | 97% | 1 |
| Sun 2p | Rain | 51°11° (likely 48°9° to 58°14°) | 51°11° | 80%, 0.11 in2.8 mm | 8 mph13 km/h from SSE, gusts 16 mph26 km/h | 86% | 63% | 1 |
| Sun 3p | Cloudy | 52°11° (likely 49°9° to 59°15°) | 52°11° | 50%, 0.11 in2.8 mm | 8 mph13 km/h from SSE, gusts 16 mph26 km/h | 84% | 93% | 0 |
| Sun 4p | Cloudy | 53°12° (likely 49°9° to 56°13°) | 53°12° | 60%, 0.11 in2.8 mm | 8 mph13 km/h from SSE, gusts 13 mph21 km/h | 83% | 93% | 1 |
| Sun 5p | Cloudy | 51°11° (likely 49°9° to 53°12°) | 51°11° | 70%, 0.04 in1 mm | 7 mph11 km/h from SSE, gusts 14 mph22 km/h | 87% | 93% | 1 |
| Sun 6p | Cloudy | 51°11° (likely 49°9° to 52°11°) | 51°11° | 70%, 0.04 in1 mm | 7 mph11 km/h from SSE, gusts 15 mph24 km/h | 87% | 95% | 0 |
| Sun 7p | Rain | 51°11° (likely 48°9° to 51°11°) | 51°11° | 70%, 0.04 in1 mm | 7 mph11 km/h from SSE, gusts 16 mph26 km/h | 88% | 97% | 0 |
| Sun 8p | Cloudy | 50°10° (likely 48°9° to 51°11°) | 47°8° | 70%, 0.04 in1 mm | 7 mph11 km/h from SE, gusts 13 mph21 km/h | 90% | 95% | 0 |
| Sun 9p | Cloudy | 49°9° (likely 48°9° to 50°10°) | 46°8° | 70%, 0.04 in1 mm | 7 mph11 km/h from SE, gusts 11 mph18 km/h | 91% | 96% | 0 |
| Sun 10p | Rain | 49°9° (likely 47°8° to 49°9°) | 46°8° | 70%, 0.04 in1 mm | 7 mph11 km/h from SE, gusts 14 mph23 km/h | 90% | 99% | 0 |
| Sun 11p | Drizzle | 48°9° (likely 45°7° to 49°9°) | 42°6° | 80%, 0.03 in0.8 mm | 15 mph24 km/h from SE, gusts 15 mph24 km/h | 90% | 98% | 0 |
| Mon 12a | Rain | 48°9° (likely 41°5° to 50°10°) | 42°6° | 80%, 0.03 in0.8 mm | 15 mph24 km/h from SE, gusts 10 mph17 km/h | 89% | 99% | 0 |
| Mon 1a | Rain | 48°9° (likely 41°5° to 50°10°) | 42°6° | 80%, 0.03 in0.8 mm | 15 mph24 km/h from SE, gusts 11 mph17 km/h | 89% | 98% | 0 |
| Mon 2a | Rain | 48°9° (likely 41°5° to 49°9°) | 42°6° | 80%, 0.03 in0.8 mm | 16 mph26 km/h from SE, gusts 10 mph16 km/h | 88% | 98% | 0 |
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
70% chance · 0.27 in6.9 mm
Official NWS forecast
Today: Patchy fog between 7am and 11am. Mostly cloudy. High near 57, with temperatures falling to around 55 in the afternoon. North northwest wind around 2 mph.
Tonight: Mostly cloudy. Low around 37, with temperatures rising to around 39 overnight. North northeast wind around 1 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
70% chance · 0.96 in24 mm
Afternoon
noon–6 PM
80% chance · 0.59 in15 mm
Evening
6 PM–midnight
80% chance · 0.23 in5.8 mm
Overnight
midnight–6 AM
80% chance · 0.15 in3.8 mm
Official NWS forecast
Day: Rain. Mostly cloudy, with a high near 53. South southeast wind 7 to 14 mph, with gusts as high as 21 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. Southeast wind 7 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
70% chance · 0.03 in0.9 mm
Afternoon
noon–6 PM
50% chance · 0.03 in0.9 mm
Evening
6 PM–midnight
30% chance
Overnight
midnight–6 AM
30% chance · 0.01 in0.3 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Rain likely. Partly sunny, with a high near 56. Chance of precipitation is 60%.
Night: A chance of rain before 10pm, then a chance of rain and patchy fog. Mostly cloudy, with a low around 44.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
30% chance · 0.04 in1 mm
Afternoon
noon–6 PM
40% chance · 0.03 in0.8 mm
Evening
6 PM–midnight
40% chance · 0.08 in2.1 mm
Overnight
midnight–6 AM
60% chance · 0.14 in3.7 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain. Mostly cloudy, with a high near 56.
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
50% chance · 0.06 in1.6 mm
Afternoon
noon–6 PM
60% chance · 0.18 in4.6 mm
Evening
6 PM–midnight
50% chance · 0.11 in2.7 mm
Overnight
midnight–6 AM
50% chance · 0.1 in2.5 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Rain likely. Mostly cloudy, with a high near 54.
Night: A chance of rain. Mostly cloudy, with a low around 39.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
40% chance · 0.03 in0.7 mm
Afternoon
noon–6 PM
40% chance · 0.14 in3.5 mm
Evening
6 PM–midnight
30% 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 54.
Night: A chance of rain before 5am. Mostly cloudy, with a low around 38.
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: Partly sunny, with a high near 56.
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 57°, low 37°.
82% chance of rain, high 53°, low 45°, cooling off.
60% chance of rain, high 56°, low 44°, warming up.
Highs 49–56°; chance of precipitation on 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 10.0 ft Sat 5 AM
Reading from Sat 2:06 AM · NWS gauge page
Forecast peak 7.3 ft Wed 5 PM
Reading from Sat 2:06 AM · NWS gauge page
Forecast peak 33.7 ft Sat 5 AM
Reading from Sat 1:30 AM · NWS gauge page
Forecast peak 120 ft Sat 5 AM
Reading from Sat 1:45 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. 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 3°2° colder than typical.
On average 1° warmer than normal (daily mean temperature).
Longview Heights weather by month: normals, records, snow and freeze dates
Sunrise 7:41 AM, sunset 6:09 PM.
Clouds most of the night (about 85% cover).
Waxing gibbous
96% lit · growing