Hermiston

AUG · HERMISTON
45.84° N · 119.29° W

Destination brief

Oregon, United States

11°CCloudy
AirGood

Explore Hermiston Compare

Hermiston is a city in Umatilla County, Oregon, United States.

From Wikipedia (opens in a new tab), CC BY-SA 4.0

Travel Score

out of 100

Good to travel

In short

A good time to go.

Best days for the weather: Sat Oct 31 and Sun Nov 1.
Little rain expected over the next 3 days.
Daytime highs of 11–15°.
Air quality is good.

Explore

What to do in Hermiston

Travelling as

A balanced mix of sights, food and day trips.

This changes which places are offered first, never a score or a safety verdict. Kept in this page’s link; allow personalization cookies in Cookie settings to remember it.

Best days to go

Weather forecast

Great weather and steady: Sat Oct 31 and Sun Nov 1

Average weather score 78 out of 100, the best of 3 two- and three-day runs in the forecast.

FriOct 3076
SatOct 3176In the best days
SunNov 179In the best days

Weather forecast only: air quality, events and safety are shown separately.

Score breakdown

Every component and the reason behind it. The full formula is on the Method page.

Weather23.2 / 30
Average daily weather score 77/100 over the next 3 days; biggest concern: cold: averaging 8.2°c on Oct 31.
Air quality20 / 20
US EPA index 1: Good.

Weather now

WeatherAPI

Hermiston, OregonUpdated 2:45 PM local time

11°C

Cloudy

Feels like 10°High 11° · Low 5°

Rain now

10%

Rain today

16% chance

Humidity

57%

Wind

6 km/h W

Best time of year

NASA POWER climatology (public domain)

Usually the most comfortable: May, June and September. Typical weather over 2001–2020, not a forecast.

January: cold, high 5°, low -2°, about 36 mm of rain, comfort 54 out of 100
February: cold, high 8°, low -1°, about 25 mm of rain, comfort 65 out of 100
March: cool, high 13°, low 2°, about 27 mm of rain, comfort 80 out of 100
April: pleasant, high 18°, low 5°, about 24 mm of rain, comfort 92 out of 100
May: pleasant, high 23°, low 10°, about 27 mm of rain, comfort 100 out of 100
June: pleasant, high 27°, low 13°, about 21 mm of rain, comfort 100 out of 100
July: hot, high 33°, low 17°, about 4 mm of rain, comfort 78 out of 100
August: warm, high 32°, low 17°, about 7 mm of rain, comfort 84 out of 100
September: pleasant, high 26°, low 12°, about 11 mm of rain, comfort 100 out of 100
October: pleasant, high 17°, low 6°, about 24 mm of rain, comfort 92 out of 100
November: cold, high 10°, low 1°, about 29 mm of rain, comfort 69 out of 100
December: cold, high 5°, low -2°, about 42 mm of rain, comfort 53 out of 100

Taller is more comfortable. The brighter bars are the best months; the filled label is this month.

August 2027 at a glance

Typical weather

32° 17°

Warm

About 7 mm of rain over the month

Festivals that month

None recorded in our calendar.

What to pack

Light clothesDays are usually warm.
A layer for the eveningNights are much cooler than days.

Worked out from the typical weather of this month, not from a forecast: check the forecast in the days before you go. From our festival calendar. Dates marked approximate are only known by month and can move; an empty list means none is recorded, not that nothing is on.

Month by month

Typical weather by month at this place
Month	Feels	High / low	Rain	Comfort
January	Cold	5° / -2°	36 mm	54
February	Cold	8° / -1°	25 mm	65
March	Cool	13° / 2°	27 mm	80
April	Pleasant	18° / 5°	24 mm	92
May	Pleasant	23° / 10°	27 mm	100
June	Pleasant	27° / 13°	21 mm	100
July	Hot	33° / 17°

Comfort uses the typical daytime high (most comfortable at 20 to 28°C) and the typical rainfall (most comfortable under 1 mm a day), averaged over 2001–2020. Highs and lows are worked out from the monthly average temperature and the average daily swing, so they are close, not exact. It is not a forecast. Humidity, crowds, prices and festivals are not included, and a mountain or coast can differ from its half-degree grid cell.

Best time of year

Festivals

Festival calendar

Happening now

Nothing on right now

No listed festivals or events are happening today.

Upcoming3

Thanksgiving
National Holiday
United States · Nationwide
Nov 2026Approx.
A national holiday on the fourth Thursday of November (25 November in 2027).
Christmas Day
Religious
Worldwide
Dec 25, 2026In 56 days
Global celebration marking the birth of Jesus Christ, celebrated with feasts, gift-giving, and decorations.
New Year's Day
National Holiday
Worldwide
Jan 1, 2027In 63 days
Global celebrations to welcome the new year with joy and festivities.

Events marked “Approx.” are known by month, not a specific day. Exact dates are recorded for 2026; check locally before you plan around them.

Air quality

US EPA index

1 / 6

Good

Air quality is good. Enjoy time outdoors.

PM2.5: 5.2 µg/m³
PM10: 5.9 µg/m³
Ozone (O₃): 58.0 µg/m³
Nitrogen dioxide (NO₂): 3.5 µg/m³
Sulphur dioxide (SO₂): 0.4 µg/m³
Carbon monoxide (CO): 159.0 µg/m³

Safety & hazards

Where to next

GeoNames (CC BY 4.0)

Towns within a day trip, best conditions first. Pick one for its full brief.

Towns 25 to 150 km away, the larger ones first, each with its own live conditions. Ranked by conditions, nearness and size. Distances are straight-line, so check the travel time. Places under a travel advisory are left out.

Where to next

Trip facts

GeoNames (CC BY 4.0)

Country: United States
Capital: Washington
Currency: Dollar (USD)
Calling code: +1
Languages: English, Spanish and more
Plugs: Type A, B
Power: 120 V · 60 Hz
Driving: On the right

Exchange rate

The local currency is your own (USD), so there is nothing to convert.

Show the rate in

Power is what the wall supplies, not what a device needs: most phone and laptop chargers take 100 to 240 V, so you usually need only a plug adapter. Check the label on your device.

Plugs, power and driving side are shown only where two sources agree (Wikipedia, Mains electricity by country (from the IEC's World Plugs), worldstandards.eu, Wikidata, Wikipedia, Left- and right-hand traffic), checked 2026-10-11. See .