Stillaguamish River at Arlington
9.3 mi- Level
- 0.0 ft
- Flow
- 358 cfs
Forecast peak 0.3 ft Mon 4 AM
Reading from Sat 6:05 AM · NWS gauge page
Appearance
Observed 6:40 AM PDT at KAWO
Overcast and 37°3°.
Today: low 42°6° (likely 39°4° to 42°6°), high 54°12° (likely 48°9° to 54°12°).
Now 37°3°
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 7a | Cloudy | 40°4° (likely 40°4° to 43°6°) | 38°3° | 5% | 3 mph5 km/h from ESE, gusts 7 mph11 km/h | 80% | 83% | 0 |
| Sat 8a | Cloudy | 41°5° (likely 41°5° to 43°6°) | 41°5° | 5% | 2 mph3 km/h from SE, gusts 5 mph9 km/h | 77% | 83% | 0 |
| Sat 9a | Cloudy | 41°5° (likely 41°5° to 44°7°) | 41°5° | 5% | 2 mph3 km/h from SE, gusts 5 mph8 km/h | 86% | 98% | 0 |
| Sat 10a | Cloudy | 44°7° (likely 44°7° to 47°8°) | 44°7° | 10% | 1 mph2 km/h from SE, gusts 6 mph10 km/h | 84% | 99% | 1 |
| Sat 11a | Cloudy | 48°9° (likely 46°8° to 50°10°) | 48°9° | 10% | 0 mph0 km/h, gusts 6 mph9 km/h | 75% | 100% | 1 |
| Sat 12p | Cloudy | 50°10° (likely 47°8° to 53°12°) | 50°10° | 5% | 0 mph0 km/h, gusts 6 mph9 km/h | 71% | 99% | 2 |
| Sat 1p | Cloudy | 52°11° (likely 47°8° to 54°12°) | 52°11° | 5% | 0 mph0 km/h, gusts 6 mph10 km/h | 67% | 100% | 2 |
| Sat 2p | Cloudy | 53°12° (likely 48°9° to 54°12°) | 53°12° | 5% | 0 mph0 km/h, gusts 5 mph8 km/h | 66% | 99% | 1 |
| Sat 3p | Cloudy | 54°12° (likely 48°9° to 54°12°) | 54°12° | 10% | 0 mph0 km/h, gusts 4 mph6 km/h | 65% | 100% | 1 |
| Sat 4p | Cloudy | 54°12° (likely 48°9° to 54°12°) | 54°12° | 10% | 1 mph2 km/h from SE, gusts 6 mph10 km/h | 66% | 100% | 1 |
| Sat 5p | Cloudy | 52°11° (likely 48°9° to 52°11°) | 52°11° | 5% | 1 mph2 km/h from ESE, gusts 7 mph11 km/h | 70% | 91% | 0 |
| Sat 6p | Cloudy | 51°11° (likely 47°8° to 51°11°) | 51°11° | 5% | 1 mph2 km/h from ESE, gusts 8 mph13 km/h | 73% | 88% | 0 |
| Sat 7p | Cloudy | 48°9° (likely 46°8° to 51°11°) | 48°9° | 5% | 2 mph3 km/h from ESE, gusts 6 mph10 km/h | 75% | 90% | 0 |
| Sat 8p | Cloudy | 47°8° (likely 45°7° to 50°10°) | 46°8° | 5% | 3 mph5 km/h from SE, gusts 6 mph9 km/h | 72% | 89% | 0 |
| Sat 9p | Cloudy | 46°8° (likely 45°7° to 49°9°) | 44°7° | 5% | 5 mph8 km/h from SE, gusts 6 mph10 km/h | 75% | 93% | 0 |
| Sat 10p | Cloudy | 46°8° (likely 45°7° to 49°9°) | 43°6° | 5% | 6 mph10 km/h from ESE, gusts 9 mph14 km/h | 74% | 97% | 0 |
| Sat 11p | Cloudy | 46°8° (likely 45°7° to 50°10°) | 43°6° | 10%, 0.02 in0.5 mm | 6 mph10 km/h from SE, gusts 9 mph14 km/h | 76% | 100% | 0 |
| Sun 12a | Cloudy | 46°8° (likely 45°7° to 49°9°) | 44°7° | 10%, 0.02 in0.5 mm | 5 mph8 km/h from ESE, gusts 8 mph13 km/h | 72% | 100% | 0 |
| Sun 1a | Cloudy | 46°8° (likely 45°7° to 48°9°) | 44°7° | 10%, 0.02 in0.5 mm | 5 mph8 km/h from SE, gusts 9 mph15 km/h | 71% | 100% | 0 |
| Sun 2a | Cloudy | 46°8° (likely 45°7° to 47°8°) | 44°7° | 20%, 0.02 in0.5 mm | 5 mph8 km/h from SE, gusts 10 mph15 km/h | 73% | 100% | 0 |
| Sun 3a | Cloudy | 46°8° (likely 44°7° to 48°9°) | 44°7° | 20%, 0.02 in0.5 mm | 5 mph8 km/h from SE, gusts 11 mph18 km/h | 72% | 99% | 0 |
| Sun 4a | Cloudy | 44°7° (likely 44°7° to 48°9°) | 41°5° | 20%, 0.02 in0.5 mm | 5 mph8 km/h from SE, gusts 8 mph14 km/h | 76% | 99% | 0 |
| Sun 5a | Rain | 44°7° (likely 44°7° to 47°8°) | 42°6° | 50%, 0.01 in0.3 mm | 3 mph5 km/h from ESE, gusts 9 mph14 km/h | 73% | 100% | 0 |
| Sun 6a | Rain | 44°7° (likely 44°7° to 48°9°) | 42°6° | 40%, 0.01 in0.3 mm | 3 mph5 km/h from ESE, gusts 8 mph12 km/h | 71% | 100% | 0 |
| Sun 7a | Cloudy | 43°6° (likely 43°6° to 47°8°) | 41°5° | 10%, 0.01 in0.3 mm | 3 mph5 km/h from ESE, gusts 7 mph11 km/h | 76% | 98% | 0 |
| Sun 8a | Cloudy | 44°7° (likely 44°7° to 47°8°) | 42°6° | 10%, 0.01 in0.3 mm | 3 mph5 km/h from ESE, gusts 8 mph12 km/h | 75% | 100% | 0 |
| Sun 9a | Cloudy | 44°7° (likely 44°7° to 48°9°) | 42°6° | 10%, 0.01 in0.3 mm | 3 mph5 km/h from ESE, gusts 7 mph11 km/h | 86% | 98% | 0 |
| Sun 10a | Cloudy | 46°8° (likely 46°8° to 50°10°) | 45°7° | 5%, 0.01 in0.3 mm | 3 mph5 km/h from ESE, gusts 13 mph21 km/h | 89% | 99% | 1 |
| Sun 11a | Cloudy | 50°10° (likely 48°9° to 51°11°) | 50°10° | 0%, 0.01 in0.3 mm | 2 mph3 km/h from ESE, gusts 12 mph20 km/h | 81% | 100% | 1 |
| Sun 12p | Cloudy | 52°11° (likely 49°9° to 53°12°) | 52°11° | 10%, 0.01 in0.3 mm | 2 mph3 km/h from ESE, gusts 12 mph19 km/h | 77% | 100% | 2 |
| Sun 1p | Drizzle | 54°12° (likely 50°10° to 54°12°) | 54°12° | 50%, 0.01 in0.3 mm | 2 mph3 km/h from ESE, gusts 15 mph24 km/h | 71% | 100% | 2 |
| Sun 2p | Rain | 55°13° (likely 50°10° to 55°13°) | 55°13° | 50%, 0.01 in0.3 mm | 2 mph3 km/h from ESE, gusts 19 mph30 km/h | 71% | 99% | 2 |
| Sun 3p | Drizzle | 56°13° (likely 50°10° to 56°13°) | 56°13° | 20%, 0.01 in0.3 mm | 2 mph3 km/h from ESE, gusts 16 mph26 km/h | 69% | 95% | 2 |
| Sun 4p | Drizzle | 56°13° (likely 50°10° to 56°13°) | 56°13° | 5%, 0.01 in0.3 mm | 2 mph3 km/h from ESE, gusts 15 mph24 km/h | 72% | 90% | 1 |
| Sun 5p | Mostly cloudy | 54°12° (likely 50°10° to 54°12°) | 54°12° | 10% | 2 mph3 km/h from E, gusts 14 mph22 km/h | 77% | 89% | 1 |
| Sun 6p | Mostly cloudy | 52°11° (likely 49°9° to 52°11°) | 52°11° | 10% | 2 mph3 km/h from E, gusts 12 mph19 km/h | 81% | 94% | 0 |
| Sun 7p | Cloudy | 50°10° (likely 48°9° to 50°10°) | 50°10° | 10% | 2 mph3 km/h from E, gusts 9 mph15 km/h | 83% | 99% | 0 |
| Sun 8p | Mostly cloudy | 48°9° (likely 48°9° to 49°9°) | 47°8° | 10% | 3 mph5 km/h from ENE, gusts 7 mph12 km/h | 84% | 78% | 0 |
| Sun 9p | Cloudy | 47°8° (likely 47°8° to 49°9°) | 46°8° | 10% | 3 mph5 km/h from ENE, gusts 4 mph6 km/h | 86% | 93% | 0 |
| Sun 10p | Cloudy | 46°8° (likely 46°8° to 49°9°) | 45°7° | 10% | 3 mph5 km/h from ENE, gusts 7 mph11 km/h | 87% | 86% | 0 |
| Sun 11p | Mostly cloudy | 46°8° (likely 46°8° to 49°9°) | 44°7° | 10% | 5 mph8 km/h from ENE, gusts 10 mph15 km/h | 87% | 81% | 0 |
| Mon 12a | Mostly cloudy | 46°8° (likely 45°7° to 49°9°) | 44°7° | 10% | 5 mph8 km/h from ENE, gusts 10 mph16 km/h | 85% | 78% | 0 |
| Mon 1a | Cloudy | 46°8° (likely 45°7° to 49°9°) | 44°7° | 10% | 5 mph8 km/h from ENE, gusts 7 mph11 km/h | 83% | 81% | 0 |
| Mon 2a | Cloudy | 46°8° (likely 44°7° to 49°9°) | 45°7° | 10% | 3 mph5 km/h from ENE, gusts 6 mph10 km/h | 81% | 86% | 0 |
| Mon 3a | Mostly cloudy | 46°8° (likely 43°6° to 48°9°) | 44°7° | 10% | 3 mph5 km/h from ENE, gusts 6 mph9 km/h | 81% | 85% | 0 |
| Mon 4a | Mostly cloudy | 45°7° (likely 43°6° to 48°9°) | 44°7° | 10% | 3 mph5 km/h from ENE, gusts 6 mph10 km/h | 81% | 73% | 0 |
| Mon 5a | Cloudy | 45°7° (likely 43°6° to 48°9°) | 45°7° | 10% | 2 mph3 km/h from NE, gusts 6 mph10 km/h | 81% | 64% | 0 |
| Mon 6a | Mostly cloudy | 44°7° (likely 40°4° to 48°9°) | 44°7° | 10% | 2 mph3 km/h from NE, gusts 4 mph6 km/h | 80% | 48% | 0 |
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
50% chance · 0.11 in2.8 mm
Official NWS forecast
Today: Mostly cloudy. High near 54, with temperatures falling to around 52 in the afternoon. Southeast wind 0 to 3 mph.
Tonight: A chance of rain after 2am. Mostly cloudy. Low around 42, with temperatures rising to around 44 overnight. Southeast wind 1 to 6 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
40% chance · 0.06 in1.5 mm
Afternoon
noon–6 PM
50% chance · 0.05 in1.3 mm
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Official NWS forecast
Day: A chance of rain before 4pm. Mostly cloudy. High near 56, with temperatures falling to around 54 in the afternoon. East southeast wind around 3 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Night: Mostly cloudy, with a low around 43. East northeast wind around 5 mph.
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
40% chance
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 57. North wind around 2 mph.
Night: A chance of rain after 11pm. Mostly cloudy, with a low around 42. Chance of precipitation is 30%.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
50% chance · 0.05 in1.1 mm
Afternoon
noon–6 PM
60% chance · 0.13 in3.4 mm
Evening
6 PM–midnight
70% chance · 0.18 in4.5 mm
Overnight
midnight–6 AM
80% chance · 0.14 in3.6 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain. Mostly cloudy, with a high near 56.
Night: Rain likely. Mostly cloudy, with a low around 41.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
80% chance · 0.17 in4.4 mm
Afternoon
noon–6 PM
60% chance · 0.18 in4.5 mm
Evening
6 PM–midnight
60% chance · 0.17 in4.3 mm
Overnight
midnight–6 AM
50% chance · 0.1 in2.6 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain. Mostly cloudy, with a high near 54.
Night: A chance of rain. Mostly cloudy, with a low around 38.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
40% chance · 0.09 in2.3 mm
Afternoon
noon–6 PM
30% chance · 0.03 in0.7 mm
Evening
6 PM–midnight
20% chance · 0.02 in0.4 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 slight 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 54.
Night: Partly cloudy, with a low around 36.
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.
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
20% chance · 0.04 in1.1 mm
Afternoon
noon–6 PM
20% chance · 0.03 in0.9 mm
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 42°.
54% chance of rain, high 56°, low 43°.
Dry, high 57°, low 42°.
Highs 48–56°; chance of precipitation on Wednesday.
Want the meteorologists’ reasoning? Read the NWS forecast discussion (SEW) (opens in a new tab)
No meaningful changes from yesterday’s forecast.
Forecast peak 0.3 ft Mon 4 AM
Reading from Sat 6:05 AM · NWS gauge page
Forecast peak 1.8 ft Mon 4 AM
Reading from Sat 5:15 AM · NWS gauge page
Forecast peak 10.3 ft Sat 11 AM
Reading from Sat 5:15 AM · NWS gauge page
Forecast peak 0.8 ft Mon 4 AM
Reading from Sat 6 AM · NWS gauge page
What this week’s weather means for heating, cooling, pipes and fresh air.
About 71% 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 1 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.
Lake McMurray weather by month: normals, records, snow and freeze dates
Sunrise 7:42 AM, sunset 6:02 PM.
Clouds most of the night (about 97% cover).
Waxing gibbous
97% lit · growing