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Observed 12:00 PM PDT at KBLI

Sumas, WA weather

Rainy and 45°7°, rain ~1–5 PM (60%).

Today: low 43°6° (likely 36°2° to 43°6°), high 54°12° (likely 46°8° to 54°12°).

Mostly agree

Now 45°7°

Rain

Wind
3 mph5 km/h
From the north. 35–15 mph24 km/h through 12 AM
Dew point
41°5°
Comfortable
UV tomorrow
1Low
Low all day (peak 1)
Pressure
30.2 inHg1023 hPa
Falling slowly · −0.03 inHg−0.9 hPa in 3 h

Next 2 hours

No precipitation expected in the next 2 hours.

Next 48 hours

Good hours for
  • Rain until 5 AM tomorrow (60%, 0.43 in11 mm)
  • High 53°12° today at 4 PM
  • Low 43°6° tonight at 4 AM
  1. This afternoonUp to 53°12° by 4 PM · Rain all afternoon (60%)
  2. TonightDown to 43°6° by 4 AM · Rain 6 PM–5 AM (50%)
  3. Tomorrow morningUp to 49°9° by 11 AM · Cloudy · rain chance 40%
  4. Tomorrow afternoonUp to 57°14° by 4 PM · rain chance 20% · Cloudy
  5. Tomorrow nightDown to 42°6° by 5 AM · rain chance 10% · Cloudy
  6. Monday morningUp to 51°11° by 11 AM · Mostly cloudy
Hourly forecast, next 48 hours, in the place's local time
HourConditionsTemperatureFeels likePrecipitationWindHumidityCloud coverUV index
Sat 12pDrizzle49°9° (likely 45°7° to 49°9°)47°8°50%, 0.05 in1.3 mm5 mph8 km/h from NNE, gusts 6 mph9 km/h79%100%2
Sat 1pRain51°11° (likely 45°7° to 51°11°)51°11°60%, 0.05 in1.3 mm5 mph8 km/h from NE, gusts 7 mph12 km/h78%100%2
Sat 2pRain51°11° (likely 45°7° to 51°11°)51°11°60%, 0.05 in1.3 mm6 mph10 km/h from NE, gusts 11 mph17 km/h77%100%2
Sat 3pRain51°11° (likely 45°7° to 51°11°)51°11°60%, 0.05 in1.3 mm7 mph11 km/h from NE, gusts 11 mph18 km/h77%100%1
Sat 4pRain53°12° (likely 45°7° to 53°12°)53°12°50%, 0.05 in1.3 mm8 mph13 km/h from NE, gusts 15 mph24 km/h76%100%0
Sat 5pDrizzle51°11° (likely 45°7° to 51°11°)51°11°40%, 0.01 in0.3 mm9 mph14 km/h from NE, gusts 15 mph25 km/h72%100%0
Sat 6pRain51°11° (likely 45°7° to 51°11°)51°11°40%, 0.01 in0.3 mm10 mph16 km/h from NE, gusts 13 mph21 km/h76%100%0
Sat 7pDrizzle49°9° (likely 45°7° to 49°9°)44°7°50%, 0.01 in0.3 mm13 mph21 km/h from NE, gusts 17 mph27 km/h82%98%0
Sat 8pRain47°8° (likely 45°7° to 47°8°)41°5°50%, 0.01 in0.3 mm14 mph23 km/h from NE, gusts 19 mph30 km/h84%99%0
Sat 9pRain46°8° (likely 45°7° to 47°8°)40°4°30%, 0.01 in0.3 mm15 mph24 km/h from NE, gusts 16 mph26 km/h88%100%0
Sat 10pRain46°8° (likely 44°7° to 47°8°)40°4°30%, 0.01 in0.3 mm15 mph24 km/h from NE, gusts 13 mph20 km/h92%100%0
Sat 11pRain45°7° (likely 44°7° to 48°9°)38°3°30%, 0.02 in0.5 mm15 mph24 km/h from ENE, gusts 9 mph15 km/h93%96%0
Sun 12aRain45°7° (likely 45°7° to 48°9°)39°4°30%, 0.02 in0.5 mm14 mph23 km/h from ENE, gusts 12 mph19 km/h96%91%0
Sun 1aRain45°7° (likely 45°7° to 48°9°)39°4°30%, 0.02 in0.5 mm13 mph21 km/h from ENE, gusts 9 mph14 km/h97%97%0
Sun 2aRain44°7° (likely 44°7° to 48°9°)38°3°40%, 0.02 in0.5 mm12 mph19 km/h from ENE, gusts 11 mph17 km/h98%100%0
Sun 3aDrizzle44°7° (likely 44°7° to 48°9°)38°3°40%, 0.02 in0.5 mm10 mph16 km/h from NE, gusts 13 mph21 km/h99%99%0
Sun 4aDrizzle43°6° (likely 43°6° to 48°9°)37°3°40%, 0.02 in0.5 mm10 mph16 km/h from NE, gusts 13 mph20 km/h99%100%0
Sun 5aDrizzle43°6° (likely 43°6° to 48°9°)37°3°40%10 mph16 km/h from NE, gusts 12 mph20 km/h100%100%0
Sun 6aRain43°6° (likely 43°6° to 48°9°)37°3°40%10 mph16 km/h from NE, gusts 15 mph25 km/h100%100%0
Sun 7aRain43°6° (likely 43°6° to 48°9°)37°3°30%12 mph19 km/h from NE, gusts 16 mph25 km/h99%99%0
Sun 8aDrizzle43°6° (likely 43°6° to 48°9°)37°3°30%12 mph19 km/h from ENE, gusts 14 mph23 km/h99%99%0
Sun 9aRain44°7° (likely 44°7° to 49°9°)38°3°30%13 mph21 km/h from ENE, gusts 12 mph20 km/h99%99%0
Sun 10aRain47°8° (likely 46°8° to 51°11°)41°5°30%13 mph21 km/h from ENE, gusts 14 mph23 km/h94%99%0
Sun 11aDrizzle49°9° (likely 47°8° to 53°12°)44°7°20%12 mph19 km/h from ENE, gusts 15 mph25 km/h87%93%0
Sun 12pCloudy51°11° (likely 48°9° to 54°12°)51°11°20%10 mph16 km/h from ENE, gusts 14 mph22 km/h82%100%1
Sun 1pDrizzle54°12° (likely 49°9° to 54°12°)54°12°10%9 mph14 km/h from ENE, gusts 12 mph20 km/h77%99%1
Sun 2pDrizzle55°13° (likely 49°9° to 55°13°)55°13°10%8 mph13 km/h from NE, gusts 11 mph17 km/h73%99%1
Sun 3pCloudy56°13° (likely 50°10° to 56°13°)56°13°10%8 mph13 km/h from NE, gusts 9 mph14 km/h71%91%1
Sun 4pCloudy57°14° (likely 49°9° to 57°14°)57°14°10%8 mph13 km/h from NNE, gusts 14 mph22 km/h70%89%1
Sun 5pCloudy57°14° (likely 49°9° to 57°14°)57°14°5%8 mph13 km/h from NNE, gusts 10 mph17 km/h64%92%0
Sun 6pCloudy55°13° (likely 48°9° to 55°13°)55°13°5%8 mph13 km/h from NNE, gusts 9 mph15 km/h69%96%0
Sun 7pCloudy53°12° (likely 48°9° to 53°12°)53°12°0%8 mph13 km/h from NNE, gusts 8 mph13 km/h76%98%0
Sun 8pCloudy50°10° (likely 48°9° to 52°11°)46°8°0%12 mph19 km/h from ENE, gusts 8 mph12 km/h78%94%0
Sun 9pCloudy48°9° (likely 47°8° to 52°11°)43°6°0%12 mph19 km/h from ENE, gusts 8 mph12 km/h83%92%0
Sun 10pCloudy47°8° (likely 47°8° to 52°11°)42°6°0%12 mph19 km/h from ENE, gusts 7 mph11 km/h86%89%0
Sun 11pCloudy46°8° (likely 46°8° to 51°11°)41°5°10%9 mph14 km/h from ENE, gusts 6 mph10 km/h88%78%0
Mon 12aCloudy45°7° (likely 45°7° to 51°11°)40°4°0%9 mph14 km/h from ENE, gusts 8 mph12 km/h91%84%0
Mon 1aCloudy45°7° (likely 45°7° to 51°11°)40°4°0%9 mph14 km/h from ENE, gusts 6 mph10 km/h92%84%0
Mon 2aCloudy44°7° (likely 44°7° to 49°9°)41°5°0%5 mph8 km/h from ENE, gusts 7 mph12 km/h94%85%0
Mon 3aCloudy43°6° (likely 43°6° to 49°9°)40°4°0%5 mph8 km/h from ENE, gusts 6 mph10 km/h96%83%0
Mon 4aCloudy43°6° (likely 43°6° to 48°9°)40°4°5%5 mph8 km/h from ENE, gusts 5 mph8 km/h96%79%0
Mon 5aMostly cloudy42°6° (likely 42°6° to 47°8°)40°4°5%3 mph5 km/h from NE, gusts 6 mph10 km/h98%80%0
Mon 6aMostly cloudy42°6° (likely 40°4° to 48°9°)40°4°5%3 mph5 km/h from NE, gusts 7 mph10 km/h97%64%0
Mon 7aMostly cloudy41°5° (likely 39°4° to 48°9°)39°4°5%3 mph5 km/h from NE, gusts 6 mph10 km/h97%56%0
Mon 8aMostly cloudy41°5° (likely 39°4° to 48°9°)39°4°5%3 mph5 km/h from NE, gusts 6 mph10 km/h97%68%0
Mon 9aCloudy43°6° (likely 42°6° to 50°10°)42°6°5%3 mph5 km/h from NE, gusts 6 mph9 km/h93%85%0
Mon 10aMostly cloudy47°8° (likely 47°8° to 51°11°)46°8°5%3 mph5 km/h from NE, gusts 5 mph8 km/h87%82%1
Mon 11aMostly cloudy51°11° (likely 51°11° to 53°12°)51°11°5%1 mph2 km/h from NNE, gusts 5 mph8 km/h80%74%2

Days ahead

Shaded: typical range for these dates (1991–2020)
  1. Today, Oct 24. Rain. High 54°12°, low 43°6°. Typical 56°13° / 40°4°. Rain 0.22 in5.6 mm, 60% chance. Mostly agree.
    1. Afternoon

      noon–6 PM

      Rain, 53°12°

      60% chance · 0.26 in6.6 mm

    2. Evening

      6 PM–midnight

      Rain, 47°8°

      50% chance · 0.07 in1.8 mm

    3. Overnight

      midnight–6 AM

      Rain, 43°6°

      40% chance · 0.1 in2.5 mm

    Official NWS forecast

    Today: Rain likely. Cloudy. High near 54, with temperatures falling to around 51 in the afternoon. Northeast wind 5 to 9 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.

    Tonight: A chance of rain. Cloudy, with a low around 43. Northeast wind 10 to 15 mph, with gusts as high as 24 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.

    High, likely
    46°8°–54°12°
    Low, likely
    36°2°–43°6°
    Typical high / low
    56°13° / 40°4°
    Wind
    11 mph17 km/h, gusts 23 mph37 km/h
    UV peak
    1
  2. Tomorrow, Oct 25. Drizzle. High 58°14°, low 41°5°. Typical 56°13° / 40°4°. Rain 0.22 in5.6 mm, 40% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Rain, 43°6°

      40% chance

    2. Afternoon

      noon–6 PM

      Cloudy, 57°14°

      Dry

    3. Evening

      6 PM–midnight

      Cloudy, 50°10°

      Dry

    4. Overnight

      midnight–6 AM

      Cloudy, 42°6°

      Dry

    Official NWS forecast

    Day: A chance of rain before 1pm. Cloudy, with a high near 58. Northeast wind 8 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.

    Night: Mostly cloudy, with a low around 41. Northeast wind 3 to 12 mph.

    Forecasts differIndependent forecasts disagree; expect changes and plan for the range.

    High, likely
    50°10°–58°14°
    Low, likely
    41°5°–47°8°
    Typical high / low
    56°13° / 40°4°
    Wind
    12 mph19 km/h, gusts 24 mph38 km/h
    UV peak
    1
  3. Monday, Oct 26. Mostly cloudy. High 60°16°, low 42°6°. Typical 55°13° / 40°4°. Dry. Mostly agree. Best day outdoors this week.
    1. Morning

      6 AM–noon

      Cloudy, 41°5°

      Dry

    2. Afternoon

      noon–6 PM

      Partly sunny, 56°13°

      Dry

    3. Evening

      6 PM–midnight

      Partly cloudy, 47°8°

      Dry

    4. Overnight

      midnight–6 AM

      Mostly clear, 45°7°

      30% chance · 0.04 in0.9 mm

    Official NWS forecast

    Day: Partly sunny, with a high near 60. Northwest wind around 3 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.

    Best day outdoors this week: the one dry, mild day the forecasts agree on (high 60°16°).

    High, likely
    54°12°–60°16°
    Low, likely
    40°4°–47°8°
    Typical high / low
    55°13° / 40°4°
    Wind
    8 mph13 km/h, gusts 17 mph27 km/h
    UV peak
    3
  4. Tuesday, Oct 27. Rain. High 57°14°, low 40°4°. Typical 55°13° / 40°4°. Rain 0.31 in7.9 mm, 80% chance. Mostly agree.
    1. Morning

      6 AM–noon

      Drizzle, 46°8°

      30% chance · 0.05 in1.2 mm

    2. Afternoon

      noon–6 PM

      Drizzle, 50°10°

      40% chance · 0.07 in1.7 mm

    3. Evening

      6 PM–midnight

      Drizzle, 48°9°

      70% chance · 0.12 in3.1 mm

    4. Overnight

      midnight–6 AM

      Rain, 44°7°

      90% chance · 0.4 in10 mm

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Rain. Mostly cloudy, with a high near 57.

    Night: Rain before 11pm, then showers and thunderstorms between 11pm and 5am, then rain. Cloudy, with a low around 40.

    Mostly agreeIndependent forecasts are fairly close; small surprises are possible.

    High, likely
    49°9°–57°14°
    Low, likely
    40°4°–47°8°
    Typical high / low
    55°13° / 40°4°
    Wind
    9 mph15 km/h, gusts 23 mph36 km/h
  5. Wednesday, Oct 28. Rain. High 53°12°, low 34°1°. Typical 54°12° / 40°4°. Rain 0.73 in19 mm, 80% chance. Forecasts agree.
    1. Morning

      6 AM–noon

      Drizzle, 44°7°

      80% chance · 0.12 in3 mm

    2. Afternoon

      noon–6 PM

      Showers, 49°10°

      70% chance · 0.12 in3 mm

    3. Evening

      6 PM–midnight

      Drizzle, 43°6°

      60% chance · 0.13 in3.2 mm

    4. Overnight

      midnight–6 AM

      Showers, 42°5°

      40% chance · 0.18 in4.5 mm

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Rain. Mostly cloudy, with a high near 53.

    Night: Rain likely. Mostly cloudy, with a low around 34.

    Forecasts agreeIndependent forecasts are close; the range is narrow.

    High, likely
    48°9°–53°12°
    Low, likely
    34°1°–44°7°
    Typical high / low
    54°12° / 40°4°
    Wind
    7 mph12 km/h, gusts 19 mph30 km/h
    UV peak
    2
  6. Thursday, Oct 29. Rain. High 54°12°, low 34°1°. Typical 54°12° / 39°4°. Rain 0.29 in7.4 mm, 60% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Drizzle, 41°5°

      30% chance · 0.04 in0.9 mm

    2. Afternoon

      noon–6 PM

      Drizzle, 48°9°

      20% chance · 0.02 in0.5 mm

    3. Evening

      6 PM–midnight

      Partly cloudy, 41°5°

      Dry

    4. Overnight

      midnight–6 AM

      Clear, 37°3°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Rain likely. Partly sunny, with a high near 54.

    Night: A slight chance of rain before 5am. Mostly cloudy, with a low around 34.

    Forecasts differIndependent forecasts disagree; expect changes and plan for the range.

    High, likely
    46°8°–54°12°
    Low, likely
    34°1°–39°4°
    Typical high / low
    54°12° / 39°4°
    Wind
    13 mph20 km/h, gusts 20 mph33 km/h
    UV peak
    1
  7. Friday, Oct 30. Mostly cloudy. High 55°13°, low 33°1°. Typical 54°12° / 39°4°. Dry. Forecasts differ.
    1. Morning

      6 AM–noon

      Mostly sunny, 38°3°

      Dry

    2. Afternoon

      noon–6 PM

      Mostly sunny, 48°9°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 41°5°

      Dry

    4. Overnight

      midnight–6 AM

      Clear, 35°2°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Partly sunny, with a high near 55.

    Night: Partly cloudy, with a low around 33.

    Forecasts differIndependent forecasts disagree; expect changes and plan for the range.

    High, likely
    46°8°–55°13°
    Low, likely
    33°1°–36°2°
    Typical high / low
    54°12° / 39°4°
    Wind
    8 mph12 km/h, gusts 15 mph24 km/h
    UV peak
    2
  8. Saturday, Oct 31. Cloudy. High 47°8°, low 34°1°. Typical 53°12° / 39°4°. Dry. Forecasts agree.
    1. Morning

      6 AM–noon

      Sunny, 36°2°

      Dry

    2. Afternoon

      noon–6 PM

      Cloudy, 47°8°

      Dry

    3. Evening

      6 PM–midnight

      Cloudy, 41°5°

      Dry

    4. Overnight

      midnight–6 AM

      Cloudy, 39°4°

      20% chance · 0.07 in1.7 mm

    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 agreeIndependent forecasts are close; the range is narrow.

    High, likely
    46°8°–48°9°
    Low, likely
    33°1°–36°2°
    Typical high / low
    53°12° / 39°4°
    Wind
    5 mph8 km/h, gusts 11 mph18 km/h
    UV peak
    2
  9. Sunday, Nov 1. Drizzle. High 49°9°, low 39°4°. Typical 53°12° / 39°4°. Rain 0.49 in12 mm, 30% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Drizzle, 41°5°

      20% chance · 0.08 in2 mm

    2. Afternoon

      noon–6 PM

      Drizzle, 46°8°

      20% chance · 0.21 in5.4 mm

    3. Evening

      6 PM–midnight

      Drizzle, 46°8°

      20% chance · 0.22 in5.6 mm

    4. Overnight

      midnight–6 AM

      Drizzle, 43°6°

      30% chance · 0.12 in3.1 mm

    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.

    High, likely
    46°8°–53°12°
    Low, likely
    34°1°–42°6°
    Typical high / low
    53°12° / 39°4°
    Wind
    14 mph22 km/h, gusts 38 mph61 km/h
  10. Monday, Nov 2. Drizzle. High 52°11°, low 41°5°. Typical 53°12° / 39°4°. Rain 0.21 in5.3 mm, 30% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Partly sunny, 45°7°

      30% chance

    2. Afternoon

      noon–6 PM

      Sunny, 52°11°

      30% chance

    3. Evening

      6 PM–midnight

      Cloudy, 43°6°

      30% 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.

    High, likely
    48°9°–57°14°
    Low, likely
    37°3°–44°7°
    Typical high / low
    53°12° / 39°4°
    Wind
    14 mph22 km/h, gusts 35 mph56 km/h
    UV peak
    2

The outlook

  1. Today

    60% chance of rain, high 54°, low 43°.

  2. Tomorrow

    37% chance of rain, high 58°, low 41°, warming up.

  3. Monday

    Dry, high 60°, low 42°.

  4. Rest of week

    Highs 47–57°; chance of precipitation on Tuesday, Wednesday, Thursday.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (SEW) (opens in a new tab)

What changed since yesterday

No meaningful changes from yesterday’s forecast.

Radar

Radar data: NOAA MRMS, rendered by forecast.blue
Radar loads when scrolled into view

Full-screen radar

Rivers

NOAA river gauges within 25 mi

Nooksack River at North Cedarvillle

11 mi
Below flood stage
Level
138 ft
Flow
447 cfs

Forecast peak 139 ft Tue 4 AM

Reading from Sat 10:30 AM · NWS gauge page

Nooksack River at Ferndale

18 mi
Below flood stage
Level
3.4 ft
Flow
394 cfs

Forecast peak 4.8 ft Thu 11 AM

Reading from Sat 10:30 AM · NWS gauge page

South Fork Nooksack River near Saxon Bridge

23 mi
Below flood stage
Level
0.3 ft
Flow
98 cfs

Forecast peak 1.7 ft Tue 4 AM

Reading from Sat 6 AM · NWS gauge page

Sumas River near Sumas

1.4 mi
Level
5.8 ft
Flow
28 cfs

Reading from Sat 11 AM · NWS gauge page

For your home

What this week’s weather means for heating, cooling, pipes and fresh air.

Heating this week

About 72% less heating than a typical week.

This week 34Typical 124

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F
28
h below 17°F
0
h below 5°F
0

47, 17 and 5°F are the test points heat pumps are rated at. About 4 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 41°F).

Open the windows?

No stretch in the next few days is comfortable enough outside, by temperature, dew point and air quality.

Is this typical?

CLEARBROOK · official normals 1991–2020 · records 1903–2026

Oct 24, today vs a typical year

Today’s expected high is 2°1° colder than typical.

Normal high / low
56°13° / 40°4°
Forecast high / low
54°12° / 43°6°
Record high
70°21° in 1941
Record low
27°−3° in 1935

Last 7 days vs normal

  1. —SunOct 18
  2. —MonOct 19
  3. —TueOct 20
  4. —WedOct 21
  5. —ThuOct 22
  6. —FriOct 23
  7. —SatOct 24

Sumas weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Sunrise 7:44 AM, sunset 6:01 PM.

Daylight
10 h 18 min
Losing 3 min 22 s a day; shortest Dec 21, 2 h 4 min less
Golden hour
5:16–6:21 PM
Morning 7:23–8:28 AM
Blue hour
6:21–6:34 PM
Morning 7:11–7:23 AM; first light 7:11 AM

Stars tonight? Poor

Clouds most of the night (about 98% cover).

Moon

Waxing gibbous

97% lit · growing

Today
sets 5:59 AM · rises 5:03 PM
Full moon
Oct 25
New moon
Nov 8
Looking southeast from Sumas. The highest point on the skyline is about 10,700 ft, 26 mi away.Skyline from USGS elevation data, heights drawn up to 4.5× taller. Sky, sun and moon as they are now.