As of 02:30 PDT

Weather in Grand Coulee, WA

41°

Grand Coulee, Wednesday, 28 October, 02:30

Overcast. Feels like 37°. High 47°, low 35°.

Pressure29.88 inHg

Wind5.9 mph S

Humidity83%

Visibility5.3 mi

Dew point36°

Wed, 28October

47°/35°

Thu, 29October

46°/33°

Fri, 30October

45°/33°

Sat, 31October

40°/30°

Sun, 01November

51°/33°

Mon, 02November

47°/31°

Tue, 03November

50°/36°

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	43°	36°	41°	40°	39°	40°	43°	46°	46°	41°	37°	35°
Feels like	43°	35°	41°	35°	34°	34°	38°	42°	42°	38°	37°	35°
Pressure, inHg	29.91	29.91	29.88	29.88	29.91	29.91	29.91	29.91	29.91	29.94	29.97	30.00
Wind, mph	4.8	4.8	1.1	3.2	2.9	4.7	4.8	4.2	3.8	1.9	1.2	0.6
Humidity, %	68%	68%	84%	87%	91%	88%	68%	53%	52%	66%	75%	80%
Precipitation	0 in	0 in	0.06 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in
Visibility	—	—	4.3 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	34°	33°	33°	33°	34°	38°	43°	46°	46°	42°	39°	35°
Feels like	34°	33°	33°	33°	34°	36°	41°	43°	43°	41°	39°	35°
Pressure, inHg	30.03	30.06	30.06	30.09	30.12	30.15	30.12	30.06	30.00	30.00	30.00	30.00
Wind, mph	0.7	0.7	1	1.3	1.2	1.4	1.9	2.6	2.6	1.6	0.9	0.8
Humidity, %	88%	99%	100%	100%	99%	98%	79%	64%	57%	68%	77%	88%
Precipitation	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in
Visibility	6.2 mi	0.5 mi	0.1 mi	0.0 mi	0.1 mi	—	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	33°	33°	35°	35°	36°	38°	40°	44°	45°	41°	39°	36°
Feels like	33°	33°	35°	35°	36°	38°	40°	42°	45°	41°	39°	36°
Pressure, inHg	30.00	29.97	29.94	29.94	29.94	30.00	30.00	29.97	29.97	30.00	30.00	30.03
Wind, mph	0.9	1.1	0.9	0.8	0.9	1.1	1	1.5	0.5	0.2	0.3	0.2
Humidity, %	93%	93%	87%	87%	88%	84%	82%	74%	68%	79%	85%	90%
Precipitation	0 in	0 in	0.03 in	0 in	0 in	0 in	0.02 in	0 in	0 in	0 in	0 in	0 in
Visibility	6.2 mi	6.2 mi	5.4 mi	6.2 mi	6.2 mi	5.0 mi	6.1 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	33°	30°	30°	30°	30°	33°	37°	39°	40°	40°	39°	38°
Feels like	33°	30°	30°	30°	30°	33°	37°	39°	40°	40°	39°	38°
Pressure, inHg	30.03	30.06	30.06	30.06	30.06	30.09	30.06	30.03	30.00	30.00	30.00	30.00
Wind, mph	0.2	0.4	0.8	0.9	1	1.2	1.1	1.2	0.8	0.5	0.3	0.4
Humidity, %	99%	100%	100%	99%	99%	96%	89%	85%	86%	87%	90%	92%
Precipitation	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in
Visibility	1.0 mi	0.1 mi	0.1 mi	0.1 mi	1.1 mi	0.8 mi	2.3 mi	3.6 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	38°	37°	34°	34°	36°	38°	41°	43°	45°	46°	45°	41°
Feels like	38°	37°	34°	34°	36°	38°	39°	41°	42°	44°	43°	39°
Pressure, inHg	30.00	30.00	30.09	30.09	30.09	30.09	30.09	30.09	30.09	30.09	30.09	30.09
Wind, mph	0.4	0.3	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2
Humidity, %	93%	94%	79%	79%	79%	79%	79%	79%	79%	79%	79%	79%
Precipitation	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in
Visibility	6.2 mi	6.2 mi	—	—	—	—	—	—	—	—	—	—

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	41°	37°	34°	31°	34°	37°	40°	42°	43°	44°	44°	42°
Feels like	41°	35°	33°	31°	33°	35°	38°	40°	42°	44°	43°	41°
Pressure, inHg	30.47	30.47	30.47	30.47	30.47	30.47	30.47	30.47	30.47	30.47	30.47	30.47
Wind, mph	2.4	2.4	2.4	2.4	2.4	2.4	2.4	2.4	2.4	2.4	2.4	2.4
Humidity, %	71%	71%	71%	71%	71%	71%	71%	71%	71%	71%	71%	71%
Precipitation	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in
Visibility	—	—	—	—	—	—	—	—	—	—	—	—

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	44°	37°	37°	37°	39°	41°	43°	44°	45°	45°	44°	41°
Feels like	44°	34°	34°	34°	37°	39°	41°	42°	43°	44°	43°	39°
Pressure, inHg	30.33	30.33	30.33	30.33	30.33	30.33	30.33	30.33	30.33	30.33	30.33	30.33
Wind, mph	2	2	2	2	2	2	2	2	2	2	2	2
Humidity, %	44%	44%	44%	44%	44%	44%	44%	44%	44%	44%	44%	44%
Precipitation	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in
Visibility	—	—	—	—	—	—	—	—	—	—	—	—

See detailed hourly forecast

Sun and moon today

Day length — 10 h 10 min

Sunrise — 07:34

Sunset — 17:44

Sunrise and sunset in local time

Waning gibbous, 94%

Sunrise — —

Sunset — —

Grand Coulee, WA climate by month

The annual average temperature in Grand Coulee, WA is 50.7°. The warmest month is July (average high 86.5°), and the coldest is January (average low 21.6°). About 16.6 inches of precipitation fall per year, most of it in December (2.6 in). Figures are 60-year climate normals and records from 66 years of observations.

Month	High	Low	Precipitation	Wet days	Record high	Record low
January	32.1°	21.6°	2.0 in	10	52.3° (2020)	-13.2° (1979)
February	38.6°	25.2°	1.5 in	8	60.6° (1995)	-9.8° (1996)
March	48.7°	32°	1.7 in	9	70.9° (2025)	-0.6° (2019)
April	58.4°	39.5°	1.3 in	7	90.1° (1977)	25° (1971)
May	69.4°	49.1°	1.3 in	7	98.4° (1986)	32.7° (1962)
June	77.7°	57.1°	1.0 in	5	111.2° (2021)	40.6° (1976)
July	86.5°	64.2°	0.4 in	3	107.2° (2024)	46.2° (1979)
August	85.1°	63.8°	0.5 in	3	104.7° (2024)	46.4° (1965)
September	74.7°	55.4°	0.7 in	4	102.7° (2025)	34.3° (1972)
October	59.5°	44.1°	1.3 in	6	86° (1992)	15.4° (1984)
November	43.4°	33°	2.2 in	10	63° (1988)	-10.8° (1985)
December	33.1°	24°	2.6 in	12	61° (2021)	-18° (1968)