As of 12:25 PDT

Weather in Grand Coulee, WA

57°

Grand Coulee, Tuesday, 20 October, 12:25

Clear. Feels like 54°. High 60°, low 39°.

Pressure30.15 inHg

Wind3.5 mph W

Humidity45%

Visibility6.2 mi

Dew point35°

Tue, 20October

60°/39°

Wed, 21October

64°/41°

Thu, 22October

64°/40°

Fri, 23October

58°/39°

Sat, 24October

56°/34°

Sun, 25October

60°/35°

Mon, 26October

54°/33°

	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	57°	44°	42°	39°	44°	49°	54°	58°	60°	54°	50°	47°
Feels like	57°	44°	42°	39°	44°	48°	52°	55°	57°	51°	50°	47°
Pressure, inHg	30.15	30.15	30.15	30.15	30.15	30.15	30.15	30.12	30.09	30.06	30.06	30.06
Wind, mph	1.6	1.6	1.6	1.6	1.6	1.6	1.6	1.6	1.6	0.3	0.2	0.2
Humidity, %	45%	45%	45%	45%	45%	45%	45%	41%	34%	34%	39%	45%
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	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	45°	44°	43°	41°	42°	52°	60°	64°	64°	55°	51°	47°
Feels like	45°	44°	43°	41°	42°	50°	57°	61°	62°	52°	48°	47°
Pressure, inHg	30.06	30.06	30.03	30.00	30.00	30.00	29.97	29.94	29.88	29.88	29.88	29.88
Wind, mph	0.2	0.3	0.3	0.3	0.3	0.5	0.3	0.6	1.1	1	0.8	0.3
Humidity, %	53%	66%	77%	84%	87%	54%	35%	30%	29%	39%	49%	59%
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	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	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	48°	45°	42°	40°	40°	49°	58°	63°	64°	58°	54°	51°
Feels like	48°	45°	42°	40°	40°	49°	56°	60°	62°	56°	51°	48°
Pressure, inHg	29.91	29.88	29.88	29.88	29.91	29.91	29.88	29.85	29.83	29.83	29.85	29.91
Wind, mph	0.3	0.5	0.4	0.4	0.4	0.4	0.5	1.4	2.2	2.6	1.6	4.8
Humidity, %	71%	82%	90%	96%	97%	68%	45%	36%	30%	40%	49%	45%
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	6.2 mi	6.2 mi	0.4 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	48°	46°	42°	41°	39°	46°	54°	58°	59°	54°	48°	43°
Feels like	44°	41°	38°	36°	35°	42°	51°	55°	56°	51°	48°	43°
Pressure, inHg	29.97	30.03	30.09	30.15	30.21	30.24	30.21	30.21	30.21	30.24	30.27	30.30
Wind, mph	4.3	4.4	3.3	2.8	2.3	3.2	5.2	4.3	3.4	1.7	0.4	0.4
Humidity, %	51%	56%	64%	68%	72%	53%	36%	30%	29%	36%	47%	58%
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	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	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	40°	36°	35°	34°	35°	43°	50°	49°	52°	55°	54°	50°
Feels like	40°	36°	35°	34°	35°	43°	47°	48°	50°	52°	51°	49°
Pressure, inHg	30.30	30.30	30.30	30.30	30.30	30.30	30.27	30.30	30.30	30.30	30.30	30.30
Wind, mph	0.4	0.3	0.3	0.5	0.7	0.9	1	1.6	1.6	1.6	1.6	1.6
Humidity, %	69%	79%	86%	88%	87%	65%	47%	53%	53%	53%	53%	53%
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	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	49°	41°	38°	36°	40°	44°	47°	51°	55°	58°	57°	51°
Feels like	49°	41°	38°	36°	40°	44°	47°	51°	53°	56°	55°	50°
Pressure, inHg	30.30	30.30	30.30	30.30	30.30	30.30	30.30	30.30	30.30	30.30	30.30	30.30
Wind, mph	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2
Humidity, %	45%	45%	45%	45%	45%	45%	45%	45%	45%	45%	45%	45%
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	47°	38°	37°	35°	38°	42°	45°	47°	48°	50°	48°	45°
Feels like	47°	35°	33°	31°	35°	39°	43°	46°	46°	46°	45°	41°
Pressure, inHg	30.45	30.45	30.45	30.45	30.45	30.45	30.45	30.45	30.45	30.45	30.45	30.45
Wind, mph	2	2	2	2	2	2	2	2	2	2	2	2
Humidity, %	32%	32%	32%	32%	32%	32%	32%	32%	32%	32%	32%	32%
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 36 min

Sunrise — 07:22

Sunset — 17:58

Sunrise and sunset in local time

Waxing gibbous, 71%

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)