Weather StoryAlmanac, microseasons, and the day's weather story.

Weather in Dayton, Washington

High country wildflowers peak. Day 59 of spring. Read this microseason across nine climate regions →

Dayton, WA
Sunday, May 17 at 12:37 AM
53
°
Clear
Feels like
42°
Humidity
49%
Wind
18 mph
Sunrise
5:17 AM
Sunset
8:19 PM
Dayton, WA
Hour by hour · 24h
61°
5p
61°
6p
59°
7p
56°
8p
53°
13%
9p
53°
10p
51°
11p
49°
12a
48°
1a
46°
2a
46°
3a
46°
4a
46°
5a
46°
6a
49°
7a
50°
8a
51°
9a
52°
10a
54°
11a
55°
12p
57°
1p
57°
2p
57°
3p
57°
4p
L 46°H 61°
Dayton, WA
7-day forecast
  1. Today
    May 16
    Light Drizzle
    35%
    53°44°
  2. Sunday
    May 17
    Overcast
    61°39°
  3. Monday
    May 18
    Overcast
    64°47°
  4. Tuesday
    May 19
    Light Drizzle
    64°46°
  5. Wednesday
    May 20
    Overcast
    66°46°
  6. Thursday
    May 21
    Overcast
    74°50°
  7. Friday
    May 22
    Overcast
    75°56°
Dayton, WA
Anemometer · 24h winds · from true
NESW
From · True
SW
234° · veering 6°
Direction
SW
234°
Sustained
18
mph
Gust
25
mph
Peak 24h
33
avg 15
Beaufort · 4 · MOD 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
avg 15 · pk 33 @ 10:00p
−24h−18h−12h−6hnow
A fresh breeze drives the sw-bound air across the harbor.
Dayton, WA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
959.6
-0.7 mb in 3h · falling · 28.34 inHg
Now
959.6
mb
3h
-0.7
mb
12h
-1.1
mb
24h
-0.3
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 959961
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Dayton, WA
Air quality
40
AQI
Good
PM 2.5
1.1 μg/m³
PM 10
1.5 μg/m³
NO₂
0.6 μg/m³
Ozone
91.0 μg/m³
UV Index
0.8 Low
Dayton, WA
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
11:43 AM
Sunrise
5:17 AM
Daylight
15h 02m
Sunset
8:19 PM
Civil dusk
3:55 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Dayton, WA
The moon
New Moon
0% illuminated
Moonrise
12:17 PM
Moonset
4:04 AM
In sign
♉︎ Taurus
Dayton, WA
Microseason · 28 of 72
May 16–20

High country wildflowers peak

bird
Jan 137% of the yearDec 31

Read this microseason across nine climate regions →

Dayton at a glance

  • Today vs. normal: 12°F below the seasonal normal for this latitude
  • Last frost: May 24 (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).

ZIP codes in Dayton

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.