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Current weather in Sumas is broken clouds.

Where can I find the hourly weather forecast for Sumas?

This page shows hourly weather forecast for Sumas, including temperature, wind, precipitation, humidity and cloud cover.

Is the weather forecast for Sumas updated regularly?

Weather data for Sumas is updated regularly with the latest available observations and forecasts.

Now · 5:00 AM

Sumas Weather & Hourly Forecast

United States · Washington · 98295

54°F

Mostly cloudy night

Feels like: 54°F

💧 Humidity 92% 🌡 Pressure 30.03 inHg 💨 Wind 2 mph 👁 Visibility 7.5 mi ☁ Clouds 75% ☀️ UV index 0.0 · Low 🌅 Sunrise 6:54 AM 🌇 Sunset 7:08 PM

Hourly Forecast for Sumas

Today

6:00 AM

Mostly cloudy night

54° 💧 None 💨 1 mph H 95%30.03 inHg

9:00 AM

Overcast

57° 💧 0.008 in 💨 2 mph H 86%30.06 inHg

12:00 PM

Light rain

62° 💧 0.021 in 💨 6 mph H 72%30.06 inHg

3:00 PM

Mostly sunny

65° 💧 0.003 in 💨 7 mph H 61%30.03 inHg

6:00 PM

Mostly cloudy

62° 💧 0.000 in 💨 7 mph H 63%30.03 inHg

9:00 PM

Mostly cloudy night

55° 💧 None 💨 4 mph H 74%30.03 inHg

Tomorrow

12:00 AM

Overcast night

51° 💧 None 💨 3 mph H 83%30.06 inHg

3:00 AM

Mostly cloudy night

53° 💧 0.000 in 💨 2 mph H 84%30.09 inHg

6:00 AM

Overcast night

52° 💧 0.011 in 💨 1 mph H 85%30.09 inHg

9:00 AM

Partly cloudy

55° 💧 0.001 in 💨 1 mph H 80%30.12 inHg

12:00 PM

Mostly cloudy

60° 💧 None 💨 2 mph H 66%30.15 inHg

3:00 PM

Mostly cloudy

62° 💧 0.013 in 💨 3 mph H 64%30.12 inHg

6:00 PM

Light rain

60° 💧 0.005 in 💨 1 mph H 73%30.09 inHg

9:00 PM

Mostly cloudy night

55° 💧 None 💨 2 mph H 87%30.09 inHg

Thursday

12:00 AM

Overcast night

52° 💧 None 💨 1 mph H 94%30.09 inHg

3:00 AM

Overcast night

50° 💧 None 💨 2 mph H 95%30.03 inHg

Today

6:00 AM

Mostly cloudy night

54° 💧 None 💨 1 mph H 95%30.03 inHg

7:00 AM

Overcast

53° 💧 None 💨 0 mph H 96%30.03 inHg

8:00 AM

Overcast

55° 💧 None 💨 1 mph H 93%30.03 inHg

9:00 AM

Overcast

57° 💧 None 💨 2 mph H 86%30.06 inHg

10:00 AM

Mostly cloudy

59° 💧 0.001 in 💨 2 mph H 82%30.06 inHg

11:00 AM

Light rain

61° 💧 0.006 in 💨 4 mph H 75%30.06 inHg

12:00 PM

Light rain

62° 💧 0.010 in 💨 6 mph H 72%30.06 inHg

1:00 PM

Light rain

64° 💧 0.006 in 💨 7 mph H 67%30.06 inHg

2:00 PM

Light rain

65° 💧 0.005 in 💨 7 mph H 63%30.03 inHg

3:00 PM

Mostly sunny

65° 💧 0.003 in 💨 7 mph H 61%30.03 inHg

4:00 PM

Partly cloudy

66° 💧 None 💨 7 mph H 58%30.03 inHg

5:00 PM

Mostly cloudy

65° 💧 None 💨 7 mph H 57%30.03 inHg

6:00 PM

Mostly cloudy

62° 💧 None 💨 7 mph H 63%30.03 inHg

7:00 PM

Mostly cloudy

58° 💧 None 💨 5 mph H 70%30.03 inHg

8:00 PM

Mostly cloudy night

56° 💧 0.000 in 💨 5 mph H 72%30.03 inHg

9:00 PM

Mostly cloudy night

55° 💧 None 💨 4 mph H 74%30.03 inHg

10:00 PM

Mostly cloudy night

53° 💧 None 💨 3 mph H 78%30.06 inHg

11:00 PM

Mostly cloudy night

52° 💧 None 💨 3 mph H 81%30.06 inHg

Tomorrow

12:00 AM

Overcast night

51° 💧 None 💨 3 mph H 83%30.06 inHg

1:00 AM

Overcast night

53° 💧 None 💨 2 mph H 80%30.06 inHg

2:00 AM

Overcast night

53° 💧 None 💨 2 mph H 82%30.09 inHg

3:00 AM

Mostly cloudy night

53° 💧 0.000 in 💨 2 mph H 84%30.09 inHg

4:00 AM

Partly cloudy night

52° 💧 None 💨 3 mph H 86%30.09 inHg

5:00 AM

Mostly cloudy night

51° 💧 None 💨 2 mph H 86%30.09 inHg

6:00 AM

Overcast night

52° 💧 None 💨 1 mph H 85%30.09 inHg

7:00 AM

Light rain

51° 💧 0.011 in 💨 0 mph H 85%30.09 inHg

8:00 AM

Mostly cloudy

52° 💧 None 💨 1 mph H 84%30.12 inHg

9:00 AM

Partly cloudy

55° 💧 None 💨 1 mph H 80%30.12 inHg

10:00 AM

Overcast

58° 💧 0.001 in 💨 1 mph H 71%30.15 inHg

11:00 AM

Mostly cloudy

59° 💧 None 💨 2 mph H 69%30.15 inHg

12:00 PM

Mostly cloudy

60° 💧 None 💨 2 mph H 66%30.15 inHg

1:00 PM

Overcast

61° 💧 None 💨 2 mph H 64%30.12 inHg

2:00 PM

Mostly cloudy

60° 💧 None 💨 3 mph H 65%30.12 inHg

3:00 PM

Mostly cloudy

62° 💧 None 💨 3 mph H 64%30.12 inHg

4:00 PM

Light rain

63° 💧 0.007 in 💨 3 mph H 62%30.12 inHg

5:00 PM

Light rain

62° 💧 0.006 in 💨 2 mph H 64%30.09 inHg

6:00 PM

Light rain

60° 💧 0.004 in 💨 1 mph H 73%30.09 inHg

7:00 PM

Overcast

58° 💧 0.001 in 💨 1 mph H 82%30.09 inHg

8:00 PM

Overcast night

56° 💧 None 💨 2 mph H 85%30.09 inHg

9:00 PM

Mostly cloudy night

55° 💧 None 💨 2 mph H 87%30.09 inHg

10:00 PM

Mostly cloudy night

54° 💧 None 💨 1 mph H 89%30.09 inHg

11:00 PM

Overcast night

53° 💧 None 💨 0 mph H 92%30.09 inHg

Thursday

12:00 AM

Overcast night

52° 💧 None 💨 1 mph H 94%30.09 inHg

1:00 AM

Overcast night

51° 💧 None 💨 1 mph H 95%30.06 inHg

2:00 AM

Overcast night

50° 💧 None 💨 1 mph H 95%30.06 inHg

3:00 AM

Overcast night

50° 💧 None 💨 2 mph H 95%30.03 inHg

4:00 AM

Overcast night

51° 💧 None 💨 2 mph H 95%30.03 inHg

5:00 AM

Overcast night

51° 💧 None 💨 2 mph H 95%30.00 inHg

6:00 AM

Overcast night

51° 💧 None 💨 2 mph H 97%30.00 inHg

7:00 AM

Overcast

51° 💧 None 💨 2 mph H 96%29.97 inHg

8:00 AM

Fog

52° 💧 None 💨 1 mph H 96%29.97 inHg

9:00 AM

Overcast

52° 💧 None 💨 2 mph H 94%29.94 inHg

10:00 AM

Overcast

55° 💧 None 💨 1 mph H 88%29.94 inHg

11:00 AM

Overcast

57° 💧 None 💨 2 mph H 83%29.91 inHg

12:00 PM

Overcast

58° 💧 None 💨 2 mph H 83%29.88 inHg

1:00 PM

Overcast

59° 💧 None 💨 2 mph H 79%29.88 inHg

2:00 PM

Overcast

60° 💧 None 💨 3 mph H 73%29.85 inHg

3:00 PM

Overcast

60° 💧 None 💨 3 mph H 72%29.85 inHg

4:00 PM

Light rain

59° 💧 0.007 in 💨 3 mph H 77%29.85 inHg

5:00 PM

Light rain

58° 💧 0.007 in 💨 1 mph H 80%29.83 inHg

8:00 PM

Overcast night

55° 💧 None 💨 1 mph H 93%29.83 inHg

11:00 PM

Light rain

54° 💧 None 💨 1 mph H 97%29.80 inHg

Friday

2:00 AM

Light rain

52° 💧 None 💨 2 mph H 99%29.80 inHg

5:00 AM

Light rain

53° 💧 None 💨 3 mph H 99%29.80 inHg

8:00 AM

Light rain

53° 💧 None 💨 3 mph H 99%29.80 inHg

11:00 AM

Light rain

54° 💧 None 💨 3 mph H 96%29.80 inHg

2:00 PM

Moderate rain

53° 💧 None 💨 6 mph H 96%29.85 inHg

5:00 PM

Light rain

53° 💧 None 💨 6 mph H 93%29.91 inHg

8:00 PM

Mostly cloudy night

52° 💧 None 💨 6 mph H 94%29.94 inHg

11:00 PM

Overcast night

51° 💧 None 💨 6 mph H 93%29.97 inHg

Saturday

2:00 AM

Light rain

51° 💧 None 💨 9 mph H 97%30.03 inHg

5:00 AM

Moderate rain

50° 💧 None 💨 7 mph H 94%30.09 inHg

8:00 AM

Moderate rain

50° 💧 None 💨 8 mph H 95%30.12 inHg

11:00 AM

Partly cloudy

53° 💧 None 💨 10 mph H 90%30.15 inHg

2:00 PM

Mostly sunny

57° 💧 None 💨 6 mph H 77%30.15 inHg

5:00 PM

Mostly sunny

58° 💧 None 💨 3 mph H 71%30.12 inHg

8:00 PM

Mostly cloudy night

52° 💧 None 💨 2 mph H 88%30.12 inHg

11:00 PM

Mostly clear night

47° 💧 None 💨 2 mph H 92%30.15 inHg

Sunday

2:00 AM

Partly cloudy night

43° 💧 None 💨 3 mph H 100%30.12 inHg

5:00 AM

Mostly cloudy night

43° 💧 None 💨 4 mph H 99%30.09 inHg

8:00 AM

Partly cloudy

44° 💧 None 💨 4 mph H 97%30.09 inHg

11:00 AM

Mostly sunny

56° 💧 None 💨 3 mph H 79%30.09 inHg

2:00 PM

Sunny

63° 💧 None 💨 2 mph H 64%30.03 inHg

5:00 PM

Sunny

64° 💧 None 💨 2 mph H 67%29.97 inHg

11:00 PM

Clear night

50° 💧 None 💨 1 mph H 88%29.97 inHg

Monday

5:00 AM

Overcast night

47° 💧 None 💨 1 mph H 87%29.97 inHg

11:00 AM

Mostly sunny

58° 💧 None 💨 1 mph H 78%30.00 inHg

5:00 PM

Mostly cloudy

62° 💧 None 💨 4 mph H 62%29.94 inHg

11:00 PM

Mostly cloudy night

53° 💧 None 💨 1 mph H 84%29.91 inHg

Tuesday

5:00 AM

Overcast night

50° 💧 None 💨 3 mph H 93%29.88 inHg

11:00 AM

Overcast

52° 💧 None 💨 2 mph H 96%29.88 inHg

5:00 PM

Moderate rain

56° 💧 None 💨 2 mph H 94%29.83 inHg

11:00 PM

Light rain

53° 💧 None 💨 2 mph H 98%29.80 inHg

Wednesday

5:00 AM

Moderate rain

50° 💧 None 💨 1 mph H 98%29.85 inHg

11:00 AM

Mostly cloudy

56° 💧 None 💨 4 mph H 90%29.94 inHg

5:00 PM

Overcast

59° 💧 None 💨 3 mph H 73%29.94 inHg

11:00 PM

Partly cloudy night

50° 💧 None 💨 0 mph H 96%29.97 inHg

Thursday

5:00 AM

Partly cloudy night

46° 💧 None 💨 1 mph H 98%30.00 inHg

11:00 AM

Light rain

54° 💧 None 💨 1 mph H 83%30.09 inHg

5:00 PM

Mostly sunny

58° 💧 None 💨 4 mph H 66%30.06 inHg

11:00 PM

Overcast night

46° 💧 None 💨 1 mph H 90%30.06 inHg

Friday

5:00 AM

Mostly clear night

44° 💧 None 💨 2 mph H 91%30.06 inHg

11:00 AM

Mostly sunny

55° 💧 None 💨 1 mph H 72%30.09 inHg

5:00 PM

Mostly sunny

58° 💧 None 💨 5 mph H 64%30.12 inHg

11:00 PM

Mostly clear night

46° 💧 None 💨 1 mph H 88%30.21 inHg

Saturday

5:00 AM

Overcast night

45° 💧 None 💨 3 mph H 82%30.24 inHg

11:00 AM

Overcast

57° 💧 None 💨 4 mph H 70%30.27 inHg

5:00 PM

Overcast

62° 💧 None 💨 2 mph H 66%30.21 inHg

11:00 PM

Mostly cloudy night

52° 💧 None 💨 1 mph H 85%30.18 inHg

Sunday

5:00 AM

Overcast night

50° 💧 None 💨 2 mph H 81%30.09 inHg

11:00 AM

Overcast

58° 💧 None 💨 1 mph H 78%30.06 inHg

5:00 PM

Light rain

60° 💧 None 💨 2 mph H 94%30.03 inHg

11:00 PM

Partly cloudy night

52° 💧 None 💨 1 mph H 99%30.06 inHg

Monday

5:00 AM

Mostly clear night

50° 💧 None 💨 1 mph H 91%30.09 inHg

11:00 AM

Mostly cloudy

61° 💧 None 💨 3 mph H 82%30.06 inHg

5:00 PM

Sunny

67° 💧 None 💨 2 mph H 73%30.00 inHg

11:00 PM

Overcast night

53° 💧 None 💨 0 mph H 99%30.03 inHg

Tuesday

5:00 AM

Clear night

52° 💧 None 💨 1 mph H 90%30.00 inHg

11:00 AM

Sunny

65° 💧 None 💨 3 mph H 73%29.94 inHg

5:00 PM

Mostly sunny

72° 💧 None 💨 2 mph H 73%29.77 inHg

In Sumas and, more broadly, across the state of Washington: Clear skies will persist into the evening, with temperatures remaining mild between 58 and 67 degrees Fahrenheit. Light eastward winds are expected, averaging around 2 mph, with occasional gusts reaching up to 9 mph. No precipitation is anticipated during the next few hours, providing a calm and dry evening. Temperatures will gradually cool as the night progresses, but conditions should remain comfortable and clear through the late evening and into the early morning hours.

15-Day Weather Outlook for Sumas

TomorrowTomorrow

Overcast 63°/51° 💧 None 💨 3 mph

Thursday, Sep 24Thu Sep 24

Light rain 60°/50° 💧 0.165 in 💨 3 mph

Friday, Sep 25Fri Sep 25

Moderate rain 54°/51° 💧 0.560 in 💨 6 mph

Saturday, Sep 26Sat Sep 26

Moderate rain 58°/47° 💧 0.534 in 💨 10 mph

Sunday, Sep 27Sun Sep 27

Partly cloudy 64°/43° 💧 None 💨 4 mph

Monday, Sep 28Mon Sep 28

Overcast 62°/47° 💧 None 💨 4 mph

Tuesday, Sep 29Tue Sep 29

Moderate rain 56°/50° 💧 0.447 in 💨 3 mph

Wednesday, Sep 30Wed Sep 30

Moderate rain 59°/50° 💧 0.562 in 💨 4 mph

Thursday, Oct 1Thu Oct 1

Light rain 58°/46° 💧 0.037 in 💨 4 mph

Friday, Oct 2Fri Oct 2

Mostly sunny 58°/44° 💧 None 💨 5 mph

Saturday, Oct 3Sat Oct 3

Overcast 62°/45° 💧 None 💨 4 mph

Sunday, Oct 4Sun Oct 4

Light rain 60°/50° 💧 0.115 in 💨 2 mph

Monday, Oct 5Mon Oct 5

Mostly sunny 67°/50° 💧 None 💨 3 mph

Tuesday, Oct 6Tue Oct 6

Mostly sunny 72°/52° 💧 None 💨 3 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Sumas

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Sumas

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 6:00 AM

PM2.5 Fine particles Good 2,5µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 3,8µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Good 17,3µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 5,3µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is favorable for outdoor activities.

UV & HEALTH

UV, Sun & Health Outlook in Sumas

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 3,7Moderate 😊Good

Tomorrow UV 2,2Low 🙂Fair

Thursday UV 2,2Low 😊Good

Friday UV 2,5Low 🙂Fair

Saturday UV 4,0Moderate 😊Good

Sunday UV 4,0Moderate —Unavailable

Monday UV 4,0Moderate —Unavailable

Hourly UV index today

7:00 AMUV 0,0 8:00 AMUV 0,2 9:00 AMUV 0,6 10:00 AMUV 1,4 11:00 AMUV 2,4 12:00 PMUV 3,3 1:00 PMUV 3,7 2:00 PMUV 3,5 3:00 PMUV 2,7 4:00 PMUV 1,8 5:00 PMUV 0,8 6:00 PMUV 0,2

Today's weather health advice Open today's recommendations.

Moderate UV risk

Sunglasses and sun protection are recommended for prolonged exposure.

Good air quality

Air quality is good and outdoor activities can be enjoyed normally.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Sumas

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · SUMAS, WASHINGTON

Tonight's Stargazing & Shooting Stars

Local night-sky conditions and meteor activity for Jasper.

44/100Best-hour score

No good viewing window tonight Astronomical darkness exists, but current sky conditions are unfavorable.

☁ Cloud cover 71% Real hourly forecast for the best viewing hour.

☾ Moonlight 82% Waxing Gibbous · Moon below the horizon at the best viewing hour.

☄ Meteor activity Southern Taurids Reference ZHR 7 · Radiant 51° high at the best hour.

✦ Estimated visible meteors Poor visibility Meteor activity may occur above the clouds, but local viewing conditions are not suitable.

Chance ≥1 meteor in 30 minNot meaningful

UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.

SEP 20–NOV 20

Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak

ACTIVE NOW

OCT 2–NOV 7

OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak

UPCOMING

OCT 20–DEC 10

Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak

UPCOMING

NOV 6–NOV 30

LeonidsStart NOV 6 · Peak NOV 17 · End NOV 30 · ZHR 15 · 52% Moon at peak

UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

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Forecast data for Sumas were last refreshed today at 5:00 AM. The current forecast period extends through 24/09/2026 at 3:00 AM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.