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Current weather in Coulee Dam is scattered clouds.

Where can I find the hourly weather forecast for Coulee Dam?

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

Is the weather forecast for Coulee Dam updated regularly?

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

Now · 8:26 AM

Coulee Dam Weather & Hourly Forecast

United States · Washington · 99116

58°F

Partly cloudy

Feels like: 57°F

💧 Humidity 75% 🌡 Pressure 29.88 inHg 💨 Wind 1 mph 👁 Visibility 22.8 mi ☁ Clouds 38% ☀️ UV index 0.0 · Low 🌅 Sunrise 6:41 AM 🌇 Sunset 6:55 PM

Hourly Forecast for Coulee Dam

Today

9:00 AM

Mostly cloudy

61° 💧 None 💨 2 mph H 64%29.88 inHg

12:00 PM

Mostly cloudy

69° 💧 None 💨 5 mph H 40%29.88 inHg

3:00 PM

Sunny

75° 💧 None 💨 6 mph H 26%29.83 inHg

6:00 PM

Sunny

75° 💧 None 💨 8 mph H 21%29.80 inHg

9:00 PM

Clear night

63° 💧 None 💨 5 mph H 42%29.88 inHg

Tomorrow

12:00 AM

Mostly cloudy night

58° 💧 None 💨 4 mph H 49%29.91 inHg

3:00 AM

Partly cloudy night

53° 💧 None 💨 2 mph H 65%29.97 inHg

6:00 AM

Mostly cloudy night

50° 💧 None 💨 2 mph H 77%30.00 inHg

9:00 AM

Mostly cloudy

55° 💧 None 💨 3 mph H 63%30.06 inHg

12:00 PM

Overcast

64° 💧 None 💨 3 mph H 38%30.06 inHg

3:00 PM

Mostly sunny

68° 💧 None 💨 4 mph H 31%30.03 inHg

6:00 PM

Sunny

68° 💧 None 💨 6 mph H 28%29.97 inHg

9:00 PM

Clear night

60° 💧 None 💨 2 mph H 44%30.00 inHg

Thursday

12:00 AM

Mostly cloudy night

56° 💧 None 💨 1 mph H 60%30.00 inHg

3:00 AM

Overcast night

52° 💧 None 💨 1 mph H 75%29.97 inHg

6:00 AM

Mostly cloudy night

51° 💧 None 💨 1 mph H 80%29.97 inHg

Today

9:00 AM

Mostly cloudy

61° 💧 None 💨 2 mph H 64%29.88 inHg

10:00 AM

Overcast

64° 💧 None 💨 3 mph H 54%29.88 inHg

11:00 AM

Overcast

67° 💧 None 💨 4 mph H 45%29.88 inHg

12:00 PM

Mostly cloudy

69° 💧 None 💨 5 mph H 40%29.88 inHg

1:00 PM

Mostly cloudy

72° 💧 None 💨 5 mph H 34%29.85 inHg

2:00 PM

Sunny

74° 💧 None 💨 6 mph H 30%29.85 inHg

3:00 PM

Sunny

75° 💧 None 💨 6 mph H 26%29.83 inHg

4:00 PM

Sunny

76° 💧 None 💨 7 mph H 22%29.83 inHg

5:00 PM

Sunny

76° 💧 None 💨 8 mph H 20%29.80 inHg

6:00 PM

Sunny

75° 💧 None 💨 8 mph H 21%29.80 inHg

7:00 PM

Clear night

70° 💧 None 💨 7 mph H 26%29.83 inHg

8:00 PM

Clear night

66° 💧 None 💨 6 mph H 34%29.85 inHg

9:00 PM

Clear night

63° 💧 None 💨 5 mph H 42%29.88 inHg

10:00 PM

Partly cloudy night

60° 💧 None 💨 4 mph H 48%29.88 inHg

11:00 PM

Mostly cloudy night

59° 💧 None 💨 4 mph H 49%29.91 inHg

Tomorrow

12:00 AM

Mostly cloudy night

58° 💧 None 💨 4 mph H 49%29.91 inHg

1:00 AM

Mostly cloudy night

56° 💧 None 💨 2 mph H 53%29.94 inHg

2:00 AM

Partly cloudy night

54° 💧 None 💨 2 mph H 59%29.94 inHg

3:00 AM

Partly cloudy night

53° 💧 None 💨 2 mph H 65%29.97 inHg

4:00 AM

Mostly cloudy night

52° 💧 None 💨 3 mph H 71%29.97 inHg

5:00 AM

Mostly cloudy night

51° 💧 None 💨 2 mph H 74%30.00 inHg

6:00 AM

Mostly cloudy night

50° 💧 None 💨 2 mph H 77%30.00 inHg

7:00 AM

Partly cloudy

49° 💧 None 💨 2 mph H 80%30.03 inHg

8:00 AM

Mostly cloudy

53° 💧 None 💨 3 mph H 74%30.06 inHg

9:00 AM

Mostly cloudy

55° 💧 None 💨 3 mph H 63%30.06 inHg

10:00 AM

Mostly cloudy

58° 💧 None 💨 3 mph H 53%30.06 inHg

11:00 AM

Mostly cloudy

61° 💧 None 💨 4 mph H 44%30.06 inHg

12:00 PM

Overcast

64° 💧 None 💨 3 mph H 38%30.06 inHg

1:00 PM

Overcast

66° 💧 None 💨 3 mph H 34%30.03 inHg

2:00 PM

Overcast

67° 💧 None 💨 4 mph H 33%30.03 inHg

3:00 PM

Mostly sunny

68° 💧 None 💨 4 mph H 31%30.03 inHg

4:00 PM

Sunny

69° 💧 None 💨 5 mph H 28%30.00 inHg

5:00 PM

Sunny

69° 💧 None 💨 5 mph H 27%30.00 inHg

6:00 PM

Sunny

68° 💧 None 💨 6 mph H 28%29.97 inHg

7:00 PM

Clear night

64° 💧 None 💨 4 mph H 35%29.97 inHg

8:00 PM

Clear night

62° 💧 None 💨 3 mph H 40%30.00 inHg

9:00 PM

Clear night

60° 💧 None 💨 2 mph H 44%30.00 inHg

10:00 PM

Mostly clear night

59° 💧 None 💨 1 mph H 48%30.00 inHg

11:00 PM

Partly cloudy night

57° 💧 None 💨 1 mph H 53%30.00 inHg

Thursday

12:00 AM

Mostly cloudy night

56° 💧 None 💨 1 mph H 60%30.00 inHg

1:00 AM

Overcast night

54° 💧 None 💨 1 mph H 66%30.00 inHg

2:00 AM

Mostly cloudy night

53° 💧 None 💨 1 mph H 70%30.00 inHg

3:00 AM

Overcast night

52° 💧 None 💨 1 mph H 75%29.97 inHg

4:00 AM

Overcast night

51° 💧 None 💨 1 mph H 79%29.97 inHg

5:00 AM

Overcast night

52° 💧 None 💨 1 mph H 79%29.97 inHg

6:00 AM

Mostly cloudy night

51° 💧 None 💨 1 mph H 80%29.97 inHg

7:00 AM

Overcast

50° 💧 None 💨 1 mph H 79%29.97 inHg

8:00 AM

Mostly cloudy

52° 💧 None 💨 2 mph H 72%29.94 inHg

9:00 AM

Overcast

57° 💧 None 💨 1 mph H 51%29.94 inHg

10:00 AM

Overcast

62° 💧 None 💨 1 mph H 38%29.94 inHg

11:00 AM

Mostly cloudy

66° 💧 None 💨 2 mph H 33%29.91 inHg

12:00 PM

Overcast

69° 💧 None 💨 2 mph H 28%29.88 inHg

1:00 PM

Mostly cloudy

71° 💧 None 💨 2 mph H 25%29.85 inHg

2:00 PM

Mostly cloudy

73° 💧 None 💨 2 mph H 23%29.83 inHg

3:00 PM

Mostly cloudy

74° 💧 None 💨 1 mph H 22%29.80 inHg

4:00 PM

Overcast

75° 💧 None 💨 1 mph H 22%29.77 inHg

5:00 PM

Overcast

75° 💧 None 💨 1 mph H 23%29.74 inHg

Friday

2:00 AM

Light rain

60° 💧 None 💨 2 mph H 75%29.71 inHg

5:00 AM

Moderate rain

58° 💧 None 💨 1 mph H 82%29.71 inHg

8:00 AM

Moderate rain

56° 💧 None 💨 2 mph H 86%29.74 inHg

11:00 AM

Light rain

57° 💧 None 💨 6 mph H 86%29.74 inHg

2:00 PM

Partly cloudy

62° 💧 None 💨 10 mph H 66%29.71 inHg

5:00 PM

Overcast

56° 💧 None 💨 6 mph H 84%29.74 inHg

8:00 PM

Moderate rain

53° 💧 None 💨 4 mph H 89%29.80 inHg

11:00 PM

Mostly cloudy night

51° 💧 None 💨 7 mph H 80%29.88 inHg

Saturday

2:00 AM

Mostly clear night

48° 💧 None 💨 6 mph H 75%29.94 inHg

5:00 AM

Mostly clear night

46° 💧 None 💨 3 mph H 82%30.00 inHg

8:00 AM

Partly cloudy

49° 💧 None 💨 3 mph H 78%30.06 inHg

11:00 AM

Mostly sunny

55° 💧 None 💨 3 mph H 64%30.06 inHg

2:00 PM

Mostly sunny

60° 💧 None 💨 5 mph H 47%30.03 inHg

5:00 PM

Sunny

60° 💧 None 💨 5 mph H 45%30.00 inHg

8:00 PM

Clear night

53° 💧 None 💨 4 mph H 63%30.03 inHg

11:00 PM

Partly cloudy night

49° 💧 None 💨 1 mph H 73%30.03 inHg

Sunday

2:00 AM

Overcast night

47° 💧 None 💨 1 mph H 86%30.03 inHg

5:00 AM

Overcast night

44° 💧 None 💨 1 mph H 95%30.03 inHg

8:00 AM

Overcast

45° 💧 None 💨 2 mph H 93%30.03 inHg

11:00 AM

Overcast

54° 💧 None 💨 3 mph H 60%30.03 inHg

2:00 PM

Overcast

57° 💧 None 💨 5 mph H 53%29.97 inHg

5:00 PM

Mostly cloudy

59° 💧 None 💨 3 mph H 45%29.94 inHg

8:00 PM

Clear night

53° 💧 None 💨 0 mph H 61%29.94 inHg

11:00 PM

Clear night

50° 💧 None 💨 0 mph H 72%29.97 inHg

Monday

5:00 AM

Clear night

50° 💧 None 💨 1 mph H 76%29.97 inHg

11:00 AM

Partly cloudy

41° 💧 None 💨 1 mph H 97%29.97 inHg

5:00 PM

Partly cloudy

56° 💧 None 💨 1 mph H 55%30.00 inHg

11:00 PM

Mostly clear night

64° 💧 None 💨 5 mph H 37%29.88 inHg

Tuesday

5:00 AM

Mostly cloudy night

51° 💧 None 💨 2 mph H 74%29.88 inHg

11:00 AM

Mostly cloudy

48° 💧 None 💨 2 mph H 90%29.88 inHg

5:00 PM

Overcast

58° 💧 None 💨 6 mph H 57%29.88 inHg

11:00 PM

Overcast night

63° 💧 None 💨 6 mph H 40%29.77 inHg

Wednesday

5:00 AM

Partly cloudy night

56° 💧 None 💨 2 mph H 66%29.74 inHg

11:00 AM

Light rain

52° 💧 None 💨 1 mph H 85%29.77 inHg

5:00 PM

Sunny

59° 💧 None 💨 3 mph H 68%29.85 inHg

11:00 PM

Mostly cloudy night

64° 💧 None 💨 5 mph H 41%29.83 inHg

Thursday

5:00 AM

Overcast night

55° 💧 None 💨 1 mph H 68%29.83 inHg

11:00 AM

Overcast

50° 💧 None 💨 1 mph H 75%29.85 inHg

5:00 PM

Sunny

57° 💧 None 💨 5 mph H 54%29.91 inHg

11:00 PM

Clear night

63° 💧 None 💨 6 mph H 28%29.88 inHg

Friday

5:00 AM

Mostly cloudy night

51° 💧 None 💨 1 mph H 59%29.94 inHg

11:00 AM

Overcast

44° 💧 None 💨 1 mph H 84%29.94 inHg

5:00 PM

Sunny

56° 💧 None 💨 1 mph H 44%30.00 inHg

11:00 PM

Mostly clear night

63° 💧 None 💨 6 mph H 35%29.97 inHg

Saturday

5:00 AM

Clear night

52° 💧 None 💨 1 mph H 61%30.06 inHg

11:00 AM

Mostly sunny

44° 💧 None 💨 1 mph H 86%30.15 inHg

5:00 PM

Mostly sunny

56° 💧 None 💨 1 mph H 50%30.24 inHg

11:00 PM

Mostly clear night

64° 💧 None 💨 1 mph H 36%30.18 inHg

Sunday

5:00 AM

Partly cloudy night

53° 💧 None 💨 1 mph H 70%30.21 inHg

11:00 AM

Overcast

46° 💧 None 💨 1 mph H 96%30.18 inHg

5:00 PM

Overcast

60° 💧 None 💨 1 mph H 52%30.12 inHg

11:00 PM

Mostly cloudy night

67° 💧 None 💨 4 mph H 37%30.00 inHg

Monday

5:00 AM

Clear night

56° 💧 None 💨 0 mph H 62%30.03 inHg

11:00 AM

Sunny

47° 💧 None 💨 1 mph H 86%30.03 inHg

5:00 PM

Mostly cloudy

63° 💧 None 💨 2 mph H 49%30.09 inHg

11:00 PM

Clear night

71° 💧 None 💨 5 mph H 34%30.00 inHg

Tuesday

5:00 AM

Clear night

57° 💧 None 💨 1 mph H 67%30.00 inHg

11:00 AM

Sunny

49° 💧 None 💨 1 mph H 90%30.00 inHg

5:00 PM

Mostly cloudy

65° 💧 None 💨 1 mph H 44%30.03 inHg

11:00 PM

Partly cloudy night

77° 💧 None 💨 4 mph H 28%29.88 inHg

In Coulee Dam 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 Coulee Dam

TomorrowTomorrow

Mostly cloudy 69°/49° 💧 None 💨 6 mph

Thursday, Sep 24Thu Sep 24

Mostly cloudy 75°/50° 💧 None 💨 2 mph

Friday, Sep 25Fri Sep 25

Moderate rain 62°/51° 💧 0.798 in 💨 10 mph

Saturday, Sep 26Sat Sep 26

Mostly sunny 60°/46° 💧 0.004 in 💨 6 mph

Sunday, Sep 27Sun Sep 27

Overcast 59°/44° 💧 None 💨 5 mph

Monday, Sep 28Mon Sep 28

Partly cloudy 64°/41° 💧 None 💨 5 mph

Tuesday, Sep 29Tue Sep 29

Mostly cloudy 63°/48° 💧 None 💨 6 mph

Wednesday, Sep 30Wed Sep 30

Light rain 64°/52° 💧 0.048 in 💨 5 mph

Thursday, Oct 1Thu Oct 1

Overcast 63°/50° 💧 None 💨 6 mph

Friday, Oct 2Fri Oct 2

Mostly cloudy 63°/44° 💧 None 💨 6 mph

Saturday, Oct 3Sat Oct 3

Mostly sunny 64°/44° 💧 None 💨 1 mph

Sunday, Oct 4Sun Oct 4

Partly cloudy 67°/46° 💧 None 💨 4 mph

Monday, Oct 5Mon Oct 5

Mostly cloudy 71°/47° 💧 None 💨 5 mph

Tuesday, Oct 6Tue Oct 6

Mostly cloudy 77°/49° 💧 None 💨 4 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Coulee Dam

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Coulee Dam

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 9:00 AM

PM2.5 Fine particles Good 9,1µg/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 11,2µg/m³

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

O₃ Ozone Fair 67,1µg/m³

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

NO₂ Nitrogen dioxide Good 4,2µg/m³

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

Air quality is acceptable for most people.

UV & HEALTH

UV, Sun & Health Outlook in Coulee Dam

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 4,3Moderate 🙂Fair

Tomorrow UV 3,2Moderate 🙂Fair

Thursday UV 3,2Moderate 😐Moderate

Friday UV 3,2Moderate 🙂Fair

Saturday UV 4,0Moderate 🙂Fair

Sunday UV 4,0Moderate —Unavailable

Monday UV 4,0Moderate —Unavailable

Hourly UV index today

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

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

Moderate UV risk

Sunglasses and sun protection are recommended for prolonged exposure.

Acceptable air quality

Air quality is acceptable for most people. Very sensitive people may want to reduce prolonged exertion.

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 Coulee Dam

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · COULEE DAM, WASHINGTON

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 9:00 PM–10:00 PM.

91/100Best-hour score

BEST TIME TONIGHT 9:00 PM–10:00 PM Astronomical darkness: 8:38 PM–4:59 AM

☁ Cloud cover 4% Real hourly forecast for the best viewing hour.

☾ Moonlight 87% Waxing Gibbous · Moon about 24° above the horizon at the best viewing hour.

☄ Meteor activity Southern Taurids Reference ZHR 7 · Radiant -1° high at the best hour.

✦ Estimated visible meteors 0–1/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min5%

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 Coulee Dam were last refreshed today at 7:57 AM. The current forecast period extends through 24/09/2026 at 6:00 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.