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

Weather in Hermiston, Oregon

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

Hermiston, OR
Sunday, May 17 at 5:55 AM
51
°
Overcast
Feels like
42°
Humidity
54%
Wind
13 mph
Sunrise
5:23 AM
Sunset
8:23 PM
Hermiston, OR
Hour by hour · 24h
56°
10p
54°
11p
53°
12a
52°
1a
51°
2a
49°
3a
49°
4a
49°
5a
50°
6a
52°
7a
55°
8a
57°
9a
59°
10a
61°
11a
63°
12p
63°
1p
64°
2p
63°
3p
66°
4p
65°
5p
63°
6p
60°
7p
58°
8p
56°
9p
L 49°H 66°
Hermiston, OR
7-day forecast
  1. Today
    May 16
    Drizzle
    11%
    62°49°
  2. Sunday
    May 17
    Overcast
    71°46°
  3. Monday
    May 18
    Overcast
    71°51°
  4. Tuesday
    May 19
    Overcast
    72°50°
  5. Wednesday
    May 20
    Overcast
    74°51°
  6. Thursday
    May 21
    Overcast
    78°58°
  7. Friday
    May 22
    Overcast
    78°50°
Hermiston, OR
Anemometer · 24h winds · from true
NESW
From · True
W
260° · veering 10°
Direction
W
260°
Sustained
13
mph
Gust
27
mph
Peak 24h
31
avg 14
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 14 · pk 31 @ 6:00a
−24h−18h−12h−6hnow
Sustained 13 mph with gusts pulsing to 27 — flags snap, branches bend.
Hermiston, OR
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1001.9
0.0 mb in 3h · steady · 29.59 inHg
Now
1001.9
mb
3h
0.0
mb
12h
+2.2
mb
24h
+1.1
mb
Regime · RAIN
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 10001002
−24h−18h−12h−6hnow
Damp, unsettled regime — wet weather lingers nearby.
Hermiston, OR
Air quality
41
AQI
Good
PM 2.5
0.5 μg/m³
PM 10
0.5 μg/m³
NO₂
2.2 μg/m³
Ozone
68.0 μg/m³
UV Index
0.0 Low
Hermiston, OR
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
11:50 AM
Sunrise
5:23 AM
Daylight
15h 00m
Sunset
8:23 PM
Civil dusk
3:59 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Hermiston, OR
The moon
New Moon
0% illuminated
Moonrise
12:25 PM
Moonset
4:07 AM
In sign
♊︎ Gemini
Hermiston, OR
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 →

Hermiston at a glance

  • Today vs. normal: 15°F below the seasonal normal for this latitude
  • Last frost: May 21 (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 Hermiston

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.