Siuslaw River near Mapleton
2.3 mi- Level
- 2.8 ft
- Flow
- 73 cfs
Forecast peak 3.3 ft Mon 11 PM
Reading from Sat 1 AM · NWS gauge page
Appearance
Ends in 7 h 35 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 1:35 AM PDT at K6S2
Clear and 41°5°, 9°5° warmer than a typical Oct 24.
Today: low 38°3° (likely 34°1° to 40°4°), high 67°19° (likely 60°16° to 67°19°).
Now 41°5°
Clear
No precipitation expected in the next 2 hours.
From forecast models
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Sat 2a | Partly cloudy | 41°5° (likely 37°3° to 42°6°) | 41°5° | 0% | 1 mph2 km/h from NE, gusts 6 mph10 km/h | 93% | 35% | 0 |
| Sat 3a | Partly cloudy | 41°5° (likely 36°2° to 42°6°) | 41°5° | 0% | 1 mph2 km/h from NE, gusts 6 mph9 km/h | 92% | 41% | 0 |
| Sat 4a | Partly cloudy | 40°4° (likely 36°2° to 41°5°) | 40°4° | 0% | 1 mph2 km/h from ENE, gusts 6 mph9 km/h | 94% | 74% | 0 |
| Sat 5a | Partly cloudy | 40°4° (likely 36°2° to 41°5°) | 40°4° | 0% | 1 mph2 km/h from ENE, gusts 5 mph8 km/h | 93% | 75% | 0 |
| Sat 6a | Cloudy | 39°4° (likely 35°2° to 40°4°) | 39°4° | 0% | 2 mph3 km/h from ENE, gusts 5 mph8 km/h | 95% | 73% | 0 |
| Sat 7a | Cloudy | 38°3° (likely 35°2° to 40°4°) | 38°3° | 0% | 2 mph3 km/h from ENE, gusts 5 mph9 km/h | 98% | 76% | 0 |
| Sat 8a | Cloudy | 38°3° (likely 35°2° to 40°4°) | 38°3° | 0% | 2 mph3 km/h from ENE, gusts 6 mph9 km/h | 96% | 77% | 0 |
| Sat 9a | Cloudy | 41°5° (likely 38°3° to 43°6°) | 41°5° | 0% | 2 mph3 km/h from ENE, gusts 5 mph9 km/h | 91% | 87% | 0 |
| Sat 10a | Cloudy | 47°8° (likely 46°8° to 50°10°) | 47°8° | 0% | 1 mph2 km/h from ENE, gusts 8 mph13 km/h | 81% | 81% | 1 |
| Sat 11a | Cloudy | 53°12° (likely 51°11° to 55°13°) | 53°12° | 0% | 1 mph2 km/h from ENE, gusts 7 mph12 km/h | 68% | 81% | 1 |
| Sat 12p | Cloudy | 58°14° (likely 55°13° to 60°16°) | 58°14° | 0% | 0 mph0 km/h, gusts 7 mph11 km/h | 57% | 83% | 2 |
| Sat 1p | Partly sunny | 63°17° (likely 58°14° to 63°17°) | 63°17° | 0% | 0 mph0 km/h, gusts 6 mph9 km/h | 47% | 74% | 2 |
| Sat 2p | Cloudy | 65°18° (likely 60°16° to 65°18°) | 65°18° | 0% | 0 mph0 km/h, gusts 4 mph7 km/h | 40% | 81% | 2 |
| Sat 3p | Cloudy | 66°19° (likely 60°16° to 66°19°) | 66°19° | 0% | 0 mph0 km/h, gusts 3 mph4 km/h | 39% | 81% | 2 |
| Sat 4p | Cloudy | 67°19° (likely 60°16° to 67°19°) | 67°19° | 0% | 0 mph0 km/h, gusts 2 mph4 km/h | 42% | 83% | 1 |
| Sat 5p | Cloudy | 65°18° (likely 57°14° to 65°18°) | 65°18° | 0% | 0 mph0 km/h, gusts 5 mph8 km/h | 48% | 82% | 1 |
| Sat 6p | Cloudy | 61°16° (likely 53°12° to 61°16°) | 61°16° | 0% | 0 mph0 km/h, gusts 5 mph8 km/h | 56% | 82% | 0 |
| Sat 7p | Cloudy | 57°14° (likely 49°9° to 57°14°) | 57°14° | 0% | 0 mph0 km/h, gusts 3 mph5 km/h | 65% | 81% | 0 |
| Sat 8p | Cloudy | 50°10° (likely 47°8° to 50°10°) | 50°10° | 0% | 0 mph0 km/h, gusts 3 mph5 km/h | 75% | 81% | 0 |
| Sat 9p | Cloudy | 48°9° (likely 46°8° to 48°9°) | 48°9° | 0% | 0 mph0 km/h, gusts 3 mph5 km/h | 83% | 82% | 0 |
| Sat 10p | Cloudy | 46°8° (likely 45°7° to 46°8°) | 46°8° | 0% | 0 mph0 km/h, gusts 3 mph5 km/h | 85% | 83% | 0 |
| Sat 11p | Cloudy | 45°7° (likely 44°7° to 45°7°) | 45°7° | 5% | 0 mph0 km/h, gusts 4 mph6 km/h | 88% | 81% | 0 |
| Sun 12a | Cloudy | 45°7° (likely 43°6° to 45°7°) | 45°7° | 0% | 0 mph0 km/h, gusts 4 mph6 km/h | 89% | 80% | 0 |
| Sun 1a | Cloudy | 44°7° (likely 42°6° to 44°7°) | 44°7° | 5% | 0 mph0 km/h, gusts 3 mph5 km/h | 90% | 79% | 0 |
| Sun 2a | Cloudy | 44°7° (likely 42°6° to 44°7°) | 44°7° | 5% | 0 mph0 km/h, gusts 3 mph4 km/h | 89% | 77% | 0 |
| Sun 3a | Cloudy | 43°6° (likely 42°6° to 44°7°) | 43°6° | 5% | 0 mph0 km/h, gusts 3 mph4 km/h | 89% | 76% | 0 |
| Sun 4a | Cloudy | 43°6° (likely 42°6° to 45°7°) | 43°6° | 5% | 0 mph0 km/h, gusts 3 mph5 km/h | 91% | 84% | 0 |
| Sun 5a | Cloudy | 43°6° (likely 41°5° to 46°8°) | 43°6° | 10%, 0.02 in0.5 mm | 2 mph3 km/h from S, gusts 3 mph5 km/h | 89% | 76% | 0 |
| Sun 6a | Cloudy | 42°6° (likely 42°6° to 47°8°) | 42°6° | 20%, 0.02 in0.5 mm | 2 mph3 km/h from S, gusts 4 mph6 km/h | 90% | 86% | 0 |
| Sun 7a | Cloudy | 44°7° (likely 42°6° to 48°9°) | 44°7° | 10%, 0.02 in0.5 mm | 2 mph3 km/h from S, gusts 5 mph8 km/h | 91% | 95% | 0 |
| Sun 8a | Cloudy | 44°7° (likely 42°6° to 49°9°) | 41°5° | 20%, 0.02 in0.5 mm | 5 mph8 km/h from S, gusts 6 mph10 km/h | 92% | 99% | 0 |
| Sun 9a | Cloudy | 45°7° (likely 45°7° to 51°11°) | 43°6° | 20%, 0.02 in0.5 mm | 5 mph8 km/h from S, gusts 9 mph15 km/h | 93% | 100% | 0 |
| Sun 10a | Rain | 51°11° (likely 51°11° to 52°11°) | 51°11° | 40%, 0.02 in0.5 mm | 5 mph8 km/h from S, gusts 13 mph20 km/h | 87% | 100% | 1 |
| Sun 11a | Rain | 55°13° (likely 51°11° to 56°13°) | 55°13° | 50%, 0.26 in6.6 mm | 6 mph10 km/h from SSW, gusts 11 mph18 km/h | 79% | 100% | 2 |
| Sun 12p | Rain | 59°15° (likely 52°11° to 59°15°) | 59°15° | 70%, 0.26 in6.6 mm | 6 mph10 km/h from SSW, gusts 13 mph21 km/h | 76% | 100% | 3 |
| Sun 1p | Rain | 61°16° (likely 52°11° to 61°16°) | 61°16° | 80%, 0.26 in6.6 mm | 6 mph10 km/h from SSW, gusts 17 mph27 km/h | 72% | 100% | 3 |
| Sun 2p | Rain | 61°16° (likely 52°11° to 61°16°) | 61°16° | 80%, 0.26 in6.6 mm | 6 mph10 km/h from SW, gusts 20 mph33 km/h | 71% | 100% | 3 |
| Sun 3p | Rain | 62°17° (likely 52°11° to 62°17°) | 62°17° | 60%, 0.26 in6.6 mm | 6 mph10 km/h from SW, gusts 24 mph39 km/h | 71% | 98% | 1 |
| Sun 4p | Drizzle | 61°16° (likely 52°11° to 61°16°) | 61°16° | 60%, 0.26 in6.6 mm | 6 mph10 km/h from SW, gusts 23 mph38 km/h | 75% | 93% | 0 |
| Sun 5p | Cloudy | 60°16° (likely 52°11° to 60°16°) | 60°16° | 90%, 0.12 in3 mm | 5 mph8 km/h from SW, gusts 28 mph46 km/h | 81% | 94% | 0 |
| Sun 6p | Rain | 57°14° (likely 51°11° to 57°14°) | 57°14° | 90%, 0.12 in3 mm | 5 mph8 km/h from SW, gusts 22 mph36 km/h | 84% | 98% | 0 |
| Sun 7p | Drizzle | 55°13° (likely 51°11° to 55°13°) | 55°13° | 90%, 0.12 in3 mm | 5 mph8 km/h from SW, gusts 17 mph27 km/h | 88% | 95% | 0 |
| Sun 8p | Rain | 52°11° (likely 51°11° to 52°11°) | 52°11° | 90%, 0.12 in3 mm | 6 mph10 km/h from SSW, gusts 16 mph25 km/h | 92% | 96% | 0 |
| Sun 9p | Rain | 51°11° (likely 51°11° to 52°11°) | 51°11° | 90%, 0.12 in3 mm | 6 mph10 km/h from SSW, gusts 18 mph29 km/h | 95% | 96% | 0 |
| Sun 10p | Rain | 51°11° (likely 50°10° to 52°11°) | 51°11° | 90%, 0.12 in3 mm | 6 mph10 km/h from SSW, gusts 17 mph28 km/h | 96% | 99% | 0 |
| Sun 11p | Rain | 50°10° (likely 50°10° to 52°11°) | 47°8° | 90%, 0.16 in4.1 mm | 8 mph13 km/h from S, gusts 23 mph37 km/h | 97% | 100% | 0 |
| Mon 12a | Rain | 50°10° (likely 49°9° to 52°11°) | 47°8° | 90%, 0.16 in4.1 mm | 8 mph13 km/h from S, gusts 20 mph32 km/h | 97% | 99% | 0 |
| Mon 1a | Rain | 50°10° (likely 48°9° to 52°11°) | 47°8° | 90%, 0.16 in4.1 mm | 8 mph13 km/h from S, gusts 12 mph19 km/h | 97% | 100% | 0 |
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Official NWS forecast
Today: Mostly sunny. High near 67, with temperatures falling to around 65 in the afternoon. Northeast wind around 2 mph.
Tonight: Partly cloudy. Low around 38, with temperatures rising to around 40 overnight. Northeast wind around 1 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
50% chance · 0.36 in9.1 mm
Afternoon
noon–6 PM
90% chance · 1.4 in36 mm
Evening
6 PM–midnight
90% chance · 0.76 in19 mm
Overnight
midnight–6 AM
100% chance · 0.55 in14 mm
Official NWS forecast
Day: Rain. Mostly cloudy, with a high near 63. South southwest wind 2 to 6 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 southwest wind 5 to 8 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
90% chance · 0.2 in5.1 mm
Afternoon
noon–6 PM
90% chance · 0.09 in2.3 mm
Evening
6 PM–midnight
70% chance · 0.04 in0.9 mm
Overnight
midnight–6 AM
50% chance · 0.04 in1.1 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Rain. Mostly cloudy, with a high near 61. Chance of precipitation is 90%.
Night: A chance of rain before 9pm, then a chance of rain and patchy fog between 9pm and 2am, then areas of fog and a chance of rain between 2am and 3am, then a chance of rain and patchy fog between 3am and 4am, then areas of fog and a chance of rain. Mostly cloudy, with a low around 45.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
40% chance · 0.02 in0.5 mm
Afternoon
noon–6 PM
50% chance · 0.05 in1.2 mm
Evening
6 PM–midnight
20% chance
Overnight
midnight–6 AM
30% chance · 0.02 in0.6 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Areas of fog and a slight chance of rain before 5pm. Mostly cloudy, with a high near 64.
Night: A slight 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
40% chance · 0.04 in1 mm
Afternoon
noon–6 PM
50% chance · 0.04 in1.1 mm
Evening
6 PM–midnight
40% chance · 0.05 in1.1 mm
Overnight
midnight–6 AM
50% chance · 0.05 in1.3 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain. Mostly cloudy, with a high near 64.
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 · 0.04 in1.1 mm
Afternoon
noon–6 PM
40% chance · 0.09 in2.4 mm
Evening
6 PM–midnight
20% chance · 0.08 in2 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 63.
Night: A slight chance of rain before 5am. Mostly cloudy, with a low around 39.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
20% chance
Afternoon
noon–6 PM
20% chance · 0.05 in1.1 mm
Evening
6 PM–midnight
20% chance · 0.03 in0.8 mm
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 64.
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
20% chance · 0.03 in0.8 mm
Afternoon
noon–6 PM
20% chance · 0.06 in1.5 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 67°, low 38°.
88% chance of rain, high 63°, low 47°, cooling off.
87% chance of rain, high 61°, low 45°.
Highs 53–64°; 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 3.3 ft Mon 11 PM
Reading from Sat 1 AM · NWS gauge page
Forecast peak 1.6 ft Mon 11 PM
Reading from Sat 1 AM · NWS gauge page
Reading from Sat 12:45 AM · NWS gauge page
Reading from Sat 12:45 AM · NWS gauge page
What this week’s weather means for heating, cooling, pipes and fresh air.
About 72% 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 8 hours are near freezing and damp, when outdoor units defrost more often.
Dry air outside (dew point 41°F).
Today, 1:00 PM–6:00 PM
Good stretch to open the windows.
Today’s expected high is 9°5° warmer than typical.
Mapleton weather by month: normals, records, snow and freeze dates
Sunrise 7:41 AM, sunset 6:16 PM.
Clouds most of the night (about 62% cover).
Waxing gibbous
96% lit · growing