Weather in Grand Coulee, Washington
High country wildflowers peak. Day 59 of spring. Read this microseason across nine climate regions →
Grand Coulee, WA
Sunday, May 17 at 12:42 AM
57
°
Partly Cloudy
Feels like
50°
Humidity
36%
Wind
6 mph
Sunrise
5:15 AM
Sunset
8:29 PM
Grand Coulee, WA
Hour by hour · 24h
64°
5p
62°
6p
61°
7p
60°
8p
55°
9p
52°
10p
50°
11p
48°
12a
47°
1a
45°
2a
43°
3a
42°
4a
42°
5a
43°
6a
47°
7a
51°
8a
54°
9a
57°
10a
59°
11a
59°
12p
61°
1p
61°
2p
59°
3p
58°
4p
Grand Coulee, WA
7-day forecast
- TodayMay 16Light Drizzle13%57°39°
- SundayMay 17Overcast—68°41°
- MondayMay 18Overcast—67°44°
- TuesdayMay 19Overcast—69°43°
- WednesdayMay 20Overcast—74°43°
- ThursdayMay 21Overcast—77°50°
- FridayMay 22Overcast—78°50°
Grand Coulee, WA
Next 24 hours · Cool now
Grand Coulee, WA
Anemometer · 24h winds · from true
From · True
NE
040° · veering 165°
Direction
NE
040°
Sustained
6
mph
Gust
9
mph
Peak 24h
20
avg 5
Beaufort · 2 · LIGHT BRZ
0
CALM
<1
1
LIGHT AIR
1–3
2
LIGHT BRZ
4–7
3
GENTLE BRZ
8–12
4
MOD BRZ
13–18
5
FRESH BRZ
19–24
6
STRONG BRZ
25–31
7
NEAR GALE
32–38
24h · sust vs gust · mph
−24h−18h−12h−6hnow
Grand Coulee, WA
Air quality
41
AQI
Good
- PM 2.5
- 0.7 μg/m³
- PM 10
- 0.9 μg/m³
- NO₂
- 0.5 μg/m³
- Ozone
- 92.0 μg/m³
- UV Index
- 1.6 Low
Grand Coulee, WA
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
11:40 AM
Sunrise
5:15 AM
Daylight
15h 14m
Sunset
8:29 PM
Civil dusk
4:07 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Grand Coulee, WA
The moon
New Moon
0% illuminated
- Moonrise
- 12:13 PM
- Moonset
- 4:16 AM
- In sign
- ♉︎ Taurus
Grand Coulee, WA
Microseason · 28 of 72
May 16–20
High country wildflowers peak
bird
Grand Coulee at a glance
- Today vs. normal: 7°F below the seasonal normal for this latitude
- Last frost: June 3 (climatological average for this latitude)
- Microseason: 28 of 72, May 16–20
- Planting window: Direct sow okra, melons, and southern peas. Thin carrot rows.
Right now in the garden
Cool-season window is open
As of May 17, the cool-season window is open or about to open. Direct-sow peas, lettuce, spinach, radishes, and brassicas now. Hold off on warm-season crops until 1–2 weeks after the last spring frost (around May).