Cowlitz River at Kelso
3.2 mi- Level
- 10.0 ft
Forecast peak 10.0 ft Sat 5 AM
Reading from Sat 12:21 AM · NWS gauge page
Appearance
Ends in 8 h 24 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 1:15 AM PDT at KKLS
Overcast and 39°4°.
Today: low 35°2° (likely 33°1° to 40°4°), high 61°16° (likely 57°14° to 64°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 1a | Fog | 39°4° (likely 37°3° to 44°7°) | 39°4° | 0% | 0 mph0 km/h, gusts 2 mph4 km/h | 97% | 60% | 0 |
| Sat 2a | Fog | 38°3° (likely 37°3° to 43°6°) | 38°3° | 0% | 0 mph0 km/h, gusts 4 mph6 km/h | 98% | 62% | 0 |
| Sat 3a | Fog | 38°3° (likely 36°2° to 42°6°) | 38°3° | 0% | 0 mph0 km/h, gusts 4 mph6 km/h | 95% | 75% | 0 |
| Sat 4a | Fog | 37°3° (likely 35°2° to 42°6°) | 37°3° | 0% | 0 mph0 km/h, gusts 4 mph6 km/h | 97% | 79% | 0 |
| Sat 5a | Fog | 37°3° (likely 35°2° to 41°5°) | 37°3° | 0% | 0 mph0 km/h, gusts 4 mph6 km/h | 96% | 79% | 0 |
| Sat 6a | Fog | 36°2° (likely 33°1° to 41°5°) | 36°2° | 0% | 0 mph0 km/h, gusts 2 mph3 km/h | 98% | 79% | 0 |
| Sat 7a | Fog | 35°2° (likely 33°1° to 41°5°) | 35°2° | 0% | 0 mph0 km/h, gusts 2 mph3 km/h | 100% | 80% | 0 |
| Sat 8a | Fog | 35°2° (likely 34°1° to 41°5°) | 35°2° | 0% | 0 mph0 km/h, gusts 2 mph3 km/h | 99% | 83% | 0 |
| Sat 9a | Fog | 37°3° (likely 36°2° to 43°6°) | 37°3° | 0% | 1 mph2 km/h from ESE, gusts 1 mph2 km/h | 96% | 82% | 0 |
| Sat 10a | Cloudy | 43°6° (likely 41°5° to 47°8°) | 43°6° | 0% | 0 mph0 km/h, gusts 3 mph4 km/h | 91% | 84% | 1 |
| Sat 11a | Cloudy | 46°8° (likely 46°8° to 52°11°) | 46°8° | 0% | 1 mph2 km/h from W, gusts 2 mph4 km/h | 88% | 83% | 2 |
| Sat 12p | Cloudy | 51°11° (likely 51°11° to 55°13°) | 51°11° | 0% | 1 mph2 km/h from WSW, gusts 4 mph6 km/h | 79% | 82% | 2 |
| Sat 1p | Cloudy | 56°13° (likely 54°12° to 59°15°) | 56°13° | 0% | 1 mph2 km/h from SW, gusts 6 mph10 km/h | 70% | 84% | 3 |
| Sat 2p | Cloudy | 59°15° (likely 56°13° to 62°17°) | 59°15° | 0% | 1 mph2 km/h from SW, gusts 7 mph12 km/h | 62% | 84% | 3 |
| Sat 3p | Cloudy | 60°16° (likely 57°14° to 63°17°) | 60°16° | 0% | 0 mph0 km/h, gusts 7 mph12 km/h | 56% | 83% | 2 |
| Sat 4p | Cloudy | 61°16° (likely 57°14° to 64°18°) | 61°16° | 0% | 0 mph0 km/h, gusts 7 mph11 km/h | 54% | 83% | 2 |
| Sat 5p | Cloudy | 59°15° (likely 55°13° to 62°17°) | 59°15° | 0% | 0 mph0 km/h, gusts 5 mph8 km/h | 61% | 83% | 1 |
| Sat 6p | Cloudy | 56°13° (likely 52°11° to 57°14°) | 56°13° | 0% | 0 mph0 km/h, gusts 6 mph10 km/h | 65% | 82% | 0 |
| Sat 7p | Cloudy | 53°12° (likely 50°10° to 53°12°) | 53°12° | 0% | 0 mph0 km/h, gusts 6 mph9 km/h | 73% | 88% | 0 |
| Sat 8p | Cloudy | 48°9° (likely 48°9° to 50°10°) | 48°9° | 0% | 0 mph0 km/h, gusts 6 mph9 km/h | 78% | 94% | 0 |
| Sat 9p | Cloudy | 47°8° (likely 47°8° to 49°9°) | 47°8° | 0% | 0 mph0 km/h, gusts 6 mph9 km/h | 79% | 95% | 0 |
| Sat 10p | Cloudy | 45°7° (likely 45°7° to 48°9°) | 45°7° | 0% | 0 mph0 km/h, gusts 5 mph9 km/h | 82% | 94% | 0 |
| Sat 11p | Cloudy | 44°7° (likely 44°7° to 47°8°) | 44°7° | 0%, 0.02 in0.5 mm | 1 mph2 km/h from SSE, gusts 6 mph10 km/h | 82% | 92% | 0 |
| Sun 12a | Cloudy | 44°7° (likely 43°6° to 46°8°) | 44°7° | 5%, 0.02 in0.5 mm | 2 mph3 km/h from S, gusts 5 mph9 km/h | 81% | 75% | 0 |
| Sun 1a | Cloudy | 43°6° (likely 42°6° to 46°8°) | 41°5° | 5%, 0.02 in0.5 mm | 3 mph5 km/h from S, gusts 5 mph9 km/h | 82% | 80% | 0 |
| Sun 2a | Cloudy | 43°6° (likely 42°6° to 46°8°) | 40°4° | 10%, 0.02 in0.5 mm | 5 mph8 km/h from SSE, gusts 5 mph9 km/h | 82% | 82% | 0 |
| Sun 3a | Cloudy | 42°6° (likely 42°6° to 46°8°) | 38°3° | 10%, 0.02 in0.5 mm | 6 mph10 km/h from SSE, gusts 6 mph10 km/h | 79% | 76% | 0 |
| Sun 4a | Rain | 42°6° (likely 42°6° to 46°8°) | 38°3° | 20%, 0.02 in0.5 mm | 7 mph11 km/h from S, gusts 7 mph11 km/h | 80% | 74% | 0 |
| Sun 5a | Cloudy | 42°6° (likely 42°6° to 47°8°) | 36°2° | 60%, 0.16 in4.1 mm | 9 mph14 km/h from SSE, gusts 7 mph12 km/h | 80% | 80% | 0 |
| Sun 6a | Rain | 41°5° (likely 41°5° to 48°9°) | 35°2° | 70%, 0.16 in4.1 mm | 9 mph14 km/h from SSE, gusts 8 mph12 km/h | 83% | 80% | 0 |
| Sun 7a | Rain | 41°5° (likely 41°5° to 48°9°) | 35°2° | 30%, 0.16 in4.1 mm | 9 mph14 km/h from SSE, gusts 8 mph13 km/h | 86% | 86% | 0 |
| Sun 8a | Rain | 41°5° (likely 41°5° to 49°9°) | 35°2° | 30%, 0.16 in4.1 mm | 10 mph16 km/h from SSE, gusts 9 mph15 km/h | 87% | 100% | 0 |
| Sun 9a | Rain | 42°6° (likely 42°6° to 49°9°) | 36°2° | 30%, 0.16 in4.1 mm | 10 mph16 km/h from SSE, gusts 14 mph23 km/h | 93% | 100% | 0 |
| Sun 10a | Rain | 45°7° (likely 45°7° to 53°12°) | 40°4° | 30%, 0.16 in4.1 mm | 10 mph16 km/h from SSE, gusts 21 mph34 km/h | 93% | 100% | 1 |
| Sun 11a | Rain | 47°8° (likely 47°8° to 56°13°) | 42°6° | 60%, 0.12 in3 mm | 10 mph16 km/h from SSE, gusts 21 mph33 km/h | 94% | 100% | 1 |
| Sun 12p | Rain | 50°10° (likely 48°9° to 58°14°) | 46°8° | 70%, 0.12 in3 mm | 10 mph16 km/h from SSE, gusts 19 mph31 km/h | 91% | 98% | 0 |
| Sun 1p | Rain | 53°12° (likely 49°9° to 60°16°) | 53°12° | 80%, 0.12 in3 mm | 10 mph16 km/h from SSE, gusts 19 mph30 km/h | 87% | 94% | 1 |
| Sun 2p | Rain | 55°13° (likely 50°10° to 61°16°) | 55°13° | 80%, 0.12 in3 mm | 7 mph11 km/h from SSE, gusts 17 mph27 km/h | 86% | 47% | 1 |
| Sun 3p | Cloudy | 55°13° (likely 50°10° to 62°17°) | 55°13° | 50%, 0.12 in3 mm | 7 mph11 km/h from SSE, gusts 18 mph29 km/h | 82% | 88% | 0 |
| Sun 4p | Rain | 57°14° (likely 51°11° to 63°17°) | 57°14° | 60%, 0.12 in3 mm | 7 mph11 km/h from SSE, gusts 17 mph28 km/h | 80% | 62% | 1 |
| Sun 5p | Cloudy | 55°13° (likely 51°11° to 59°15°) | 55°13° | 70%, 0.04 in1 mm | 6 mph10 km/h from SSE, gusts 15 mph24 km/h | 85% | 78% | 1 |
| Sun 6p | Cloudy | 55°13° (likely 51°11° to 56°13°) | 55°13° | 70%, 0.04 in1 mm | 6 mph10 km/h from SSE, gusts 15 mph24 km/h | 86% | 87% | 0 |
| Sun 7p | Drizzle | 53°12° (likely 51°11° to 55°13°) | 53°12° | 70%, 0.04 in1 mm | 6 mph10 km/h from SSE, gusts 15 mph24 km/h | 90% | 92% | 0 |
| Sun 8p | Cloudy | 50°10° (likely 50°10° to 55°13°) | 48°9° | 70%, 0.04 in1 mm | 5 mph8 km/h from SE, gusts 12 mph20 km/h | 94% | 90% | 0 |
| Sun 9p | Cloudy | 49°9° (likely 49°9° to 53°12°) | 47°8° | 70%, 0.04 in1 mm | 5 mph8 km/h from SE, gusts 13 mph20 km/h | 95% | 90% | 0 |
| Sun 10p | Drizzle | 48°9° (likely 48°9° to 53°12°) | 46°8° | 70%, 0.04 in1 mm | 5 mph8 km/h from SE, gusts 17 mph28 km/h | 94% | 86% | 0 |
| Sun 11p | Drizzle | 47°8° (likely 47°8° to 53°12°) | 42°6° | 80%, 0.04 in1 mm | 12 mph19 km/h from SE, gusts 17 mph27 km/h | 93% | 83% | 0 |
| Mon 12a | Rain | 47°8° (likely 45°7° to 53°12°) | 42°6° | 80%, 0.04 in1 mm | 12 mph19 km/h from SE, gusts 12 mph19 km/h | 92% | 86% | 0 |
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
60% chance · 0.26 in6.6 mm
Official NWS forecast
Today: Areas of fog before 10am. Mostly cloudy. High near 61, with temperatures falling to around 59 in the afternoon. West southwest wind around 1 mph.
Tonight: Patchy fog before 4am, then patchy frost and patchy fog. Mostly cloudy. Low around 35, with temperatures rising to around 37 overnight. Wind around 0 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
70% chance · 0.92 in23 mm
Afternoon
noon–6 PM
80% chance · 0.64 in16 mm
Evening
6 PM–midnight
80% chance · 0.24 in6.1 mm
Overnight
midnight–6 AM
80% chance · 0.11 in2.7 mm
Official NWS forecast
Day: Rain. Mostly cloudy, with a high near 57. South southeast wind 6 to 10 mph, with gusts as high as 18 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 44. Southeast wind 5 to 12 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
70% chance · 0.05 in1.2 mm
Afternoon
noon–6 PM
50% chance · 0.03 in0.7 mm
Evening
6 PM–midnight
40% chance · 0.01 in0.3 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 59. Chance of precipitation is 60%.
Night: A chance of rain before 8pm, then a chance of rain and patchy fog between 8pm and 10pm, then areas of fog and a chance of rain. Mostly cloudy, with a low around 43.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
30% chance · 0.04 in1 mm
Afternoon
noon–6 PM
30% chance · 0.06 in1.6 mm
Evening
6 PM–midnight
30% chance · 0.09 in2.2 mm
Overnight
midnight–6 AM
50% chance · 0.14 in3.5 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain. Mostly cloudy, with a high near 59.
Night: A chance of rain. Mostly cloudy, with a low around 40.
Forecasts agreeIndependent forecasts are close; the range is narrow.
Morning
6 AM–noon
60% chance · 0.09 in2.2 mm
Afternoon
noon–6 PM
60% chance · 0.19 in4.7 mm
Evening
6 PM–midnight
50% chance · 0.1 in2.6 mm
Overnight
midnight–6 AM
40% chance · 0.09 in2.4 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Rain likely. Mostly cloudy, with a high near 58.
Night: A chance of rain. Mostly cloudy, with a low around 37.
Forecasts agreeIndependent forecasts are close; the range is narrow.
Morning
6 AM–noon
30% chance · 0.03 in0.7 mm
Afternoon
noon–6 PM
30% chance · 0.14 in3.5 mm
Evening
6 PM–midnight
30% chance · 0.04 in1.1 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 57.
Night: A chance of rain before 5am. Mostly cloudy, with a low around 36.
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 59.
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
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.
Morning
6 AM–noon
20% chance · 0.01 in0.3 mm
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 61°, low 35°.
81% chance of rain, high 57°, low 44°, cooling off.
61% chance of rain, high 59°, low 43°.
Highs 52–59°; 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 10.0 ft Sat 5 AM
Reading from Sat 12:21 AM · NWS gauge page
Forecast peak 33.7 ft Sat 5 AM
Reading from Fri 11:30 PM · NWS gauge page
Forecast peak 7.3 ft Wed 5 PM
Reading from Sat 12:06 AM · NWS gauge page
Forecast peak 120 ft Sat 5 AM
Reading from Fri 11:45 PM · 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 14 hours are near freezing and damp, when outdoor units defrost more often.
Dry air outside (dew point 37°F).
Today, 3:00 PM–4:00 PM
Good stretch to open the windows.
Today’s expected high is about typical for the date.
On average 1° warmer than normal (daily mean temperature).
Lexington weather by month: normals, records, snow and freeze dates
Sunrise 7:41 AM, sunset 6:09 PM.
Clouds most of the night (about 74% cover).
Waxing gibbous
96% lit · growing