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West Slope, Oregon Weather

Fireweed Ignites. Day 15 of summer. Read this microseason across nine climate regions →

West Slope weather forecast — hour by hour, 7-day outlook, NOAA radar

West Slope, OR
Sunday, July 5 at 6:43 AM
54
°
Partly Cloudy
Feels like
54°
Humidity
85%
Wind
1 mph
Sunrise
10:29 PM
Sunset
2:02 PM
West Slope, OR
Hour by hour · 24h
24-Hour ForecastWest Slope, OR: 24-hour forecast. Temperatures range from 53 to 79 degrees Fahrenheit.
L 53°H 79°
West Slope, OR
7-day forecast
  1. Today
    Jul 5
    Overcast
    —
    —
    79°53°—
  2. Monday
    Jul 6
    Overcast
    —
    —
    87°57°+8°
  3. Tuesday
    Jul 7
    Overcast
    —
    —
    85°57°-2°
  4. Wednesday
    Jul 8
    Overcast
    —
    —
    78°60°-7°
  5. Thursday
    Jul 9
    Overcast
    —
    —
    83°53°+5°
  6. Friday
    Jul 10
    Overcast
    —
    —
    83°56°0°
  7. Saturday
    Jul 11
    Overcast
    —
    —
    79°58°-4°
West Slope, OR
Next 24 hours · Cool now
45°65°85°12a6a12p6pnow 53°high 79°low 53°
West Slope, OR
Anemometer · 24h winds · from true
NESW
From · True
NNE
022° · veering 22°
Direction
NNE
022°
Sustained
1
mph
Gust
14
mph
Peak 24h
21
avg 5
Beaufort · 1 · LIGHT AIR
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 5 · pk 21 @ 11:00p
0102030MPHB1B2B3B4B5B6-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 251SUSTGUST
−24h−18h−12h−6hnow
Light breeze veering 22° from the nne.
West Slope, OR
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1008.7
+0.5 mb in 3h · steady · 29.79 inHg
Now
1008.7
mb
3h
+0.5
mb
12h
+1.0
mb
24h
-1.0
mb
Regime · RAIN
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 1007–1011
1000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR-21h-18h-15h-12h-9h-6h-3h-24hNOW1010.71007.11008.7
−24h−18h−12h−6hnow
Damp, unsettled regime — wet weather lingers nearby.
West Slope, OR
Air quality
18
AQI
Good
↓-9 in 6h

AQI 18 (Good), driven by PM2.5. AQI down 9 over the last 6 hours (gradual decline).

OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.

PM 2.5DRIVERGood
3.4μg/m³
PM 10Good
4μg/m³
NO₂Good
7μg/m³
OzoneGood
31μg/m³
UV IndexLow
0.1

Trends

Seven days of AQI and PM2.5.

Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).

7-DAY AQI TREND50100SUNMONTUEWEDTHUFRISATSUN7-DAY PM2.5 TREND · μg/m³300
West Slope, OR
Sky cover · visibility · 24h
Cloud cover
50%
PARTLY CLOUDY
100%0%−24h−18h−12h−6hnow
Visibility
31.2mi
UNLIMITED
102 mi0 mi−24h−18h−12h−6hnow
Earth · GOES-19 ABI
Full Disk · Visible · GeoColor
GOES-19 full disk Visible · GeoColor
True-color daytime, blue/IR sandwich at night
13:43 UTC · West Slope, OR · NOAA NESDIS / STAR · up to 10848 px
Continental US · GOES-19 ABI
CONUS Sector · Visible · GeoColor
GOES-19 CONUS Visible · GeoColor
Daytime true-color, blue-light/IR sandwich at night
13:43 UTC · West Slope, OR · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
West Slope, OR
Satellite · infrared · animated
West Slope, OR
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
West Slope, OR
Almanac · Sunday, July 5
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
4:52 AM
Sunrise
10:29 PM
Daylight
15h 33m
Sunset
2:02 PM
Civil dusk
9:41 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
West Slope, OR
The moon
Waning Gibbous
72% illuminated
Moonrise
11:35 PM
Moonset
11:27 AM
In sign
♓︎ Pisces
West Slope, OR
Microseason
Jul 1–5

Fireweed Ignites

weather
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

West Slope at a glance

  • Today vs. normal: 12°F below the seasonal normal for this latitude
  • Last frost: May 19 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

16-Day Forecast — West Slope

  1. Sun79°53°0%
  2. Mon87°57°0%
  3. Tue85°57°0%
  4. Wed78°60°0%
  5. Thu83°53°0%
  6. Fri83°56°0%
  7. Sat79°58°3%
  8. Sun85°56°1%
  9. Mon90°61°2%
  10. Tue93°63°1%
  11. Wed90°61°0%
  12. Thu92°63°3%
  13. Fri94°64°0%
  14. Sat91°63°0%
  15. Sun86°61°0%
  16. Mon83°55°3%

Forecast data from Open-Meteo (CC BY 4.0).

Right now in the garden

Peak growing season

As of July 5, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.

January 1–5: The Year's Deep Silence.January 6–10: The First Pressure Shift.January 11–15: The Lengthening.January 16–20: The Crows Begin.January 21–25: Skunk Cabbage Wakens.January 26–31: The Fog Deepens.February 1–5: The Sap Stirs.February 6–10: East Wind Weakens the Marine Layer.February 11–15: Thrush Song at First Light.February 16–20: The Salmon Remember.February 21–25: The Soil Awakens.February 26–28: Mist Begins to Linger.March 1–5: The Buds Emerge.March 6–10: The Small Lives Stir.March 11–15: The Spring Salmon Peak.March 16–20: Alder Catkins Dust the Air.March 21–25: Equinox Fog Clears.March 26–31: Salmonberry First Bloom.April 1–5: Thunder Rolls Down the Valleys.April 6–10: Swallows Arrive at the Bridges.April 11–15: Geese Turn Their Faces North.April 16–20: Rainbows Arc Above the Cascades.April 21–25: Reeds Rise from the Wetlands.April 26–30: Frost Releases the Garden.May 1–5: Warblers Flood the Canopy.May 6–10: Frogs Sing at Twilight.May 11–15: Earthworms Rise to Feed the Forest.May 16–20: Shoots and Sprouts Rise in Ranks.May 21–25: Silkworm Days—Full Canopy.May 26–31: Safflower Days—Late May Blooms.June 1–5: Rufous Hummingbirds Arrive.June 6–10: Oceanspray Towers.June 11–15: Solstice Light Crests.June 16–20: Thimbleberry Sweetens.June 21–25: Summer Solstice Stillness.June 26–30: Dry Pattern Deepens.July 1–5: Fireweed Ignites.July 6–10: Peak Hummingbird Wars.July 11–15: Red Huckleberry Ripens.July 16–20: Smoke Season Beckons.July 21–25: Dog Days Hold.July 26–31: Smoke Deepens.August 1–5: August Arrives Dimmed.August 6–10: Cool Wind Hints Return.August 11–15: Cicadas Crescendo.August 16–20: Marine layer deepens.August 21–25: First sweater morning.August 26–31: August snap arrives.September 1–5: Rivers quicken with silver.September 6–10: Dew settles thick.September 11–15: Raptors funnel through passes.September 16–20: Equinox—darkness gains.September 21–25: Fog locks the valleys.September 26–30: Geese stage southward.October 1–5: Mushroom flush deepens.October 6–10: Maples ignite orange.October 11–15: Frost's first mark.October 16–20: Oaks turn russet.October 21–25: First killing frost.October 26–31: Atmospheric rivers arrive.November 1–5: Maple and ivy turn to amber.November 6–10: Last leaves cling in quiet rain.November 11–15: First frost finds the lowlands.November 16–20: Bare branches open the winter sky.November 21–25: Heavy rains mask the stars.November 26–30: North wind clears the gloom.December 1–5: Darkness settles early.December 6–10: Winter cold locks the sky.December 11–15: The days reach their minimum.December 16–20: Ice forms at the margins.December 21–25: The sun turns at solstice.December 26–31: Year's end in silence.🌱February 14 — First skunk-cabbage spathes thaw their way up☀️March 20 — Spring equinox — day and night balance🌸April 5 — Cherry blossoms peak in the parks🐦May 10 — Warbler migration peaks along the coast✨May 25 — First fireflies scout the meadows at dusk🌞June 21 — Summer solstice — longest day🦗July 25 — Peak cicada chorus in the afternoons🌊August 18 — Warmest sea-surface temperatures of the year🍂September 22 — Autumn equinox — the slow turn❄️October 25 — First widespread frost in the suburbs🍁November 10 — Peak leaf color across the Hudson Valley🌙December 21 — Winter solstice — longest night

Microseason · July 1–5

Fireweed Ignites

Magenta fireweed spires surge from burned and cleared slopes, their blooms climbing from base upward. July's signature color claims the disturbed ground.

Day 186 of 365 · Wedge 37 of 72

The solar year drawn as a wheel of 72 five-day windows. Each wedge is one microseason; the four colored arcs mark winter, spring, summer, and autumn; the small icons sit at notable phenological events. The crimson pointer creeps clockwise as the year turns.

Planting calendar

MonthPlantHarvest
January——
February——
March——
April——
Maylettuce, peas, spinach, radisheslettuce, peas, radishes
Junelettuce, peas, spinach, radishes, tomatoes, peppers, beans, squashlettuce, peas, radishes
Julytomatoes, peppers, beans, squashtomatoes, beans, summer squash
Augusttomatoes, peppers, beans, squash, fall brassicas, garlic (overwinter), carrotstomatoes, beans, summer squash
Septemberfall brassicas, garlic (overwinter), carrotstomatoes, beans, summer squash
October—winter squash, tomatoes (last)
November——
December——

A year in weather

In West Slope, August runs warmest near 69°F and January coldest around 39°F, while December is the wettest month (7.2 inches) and July the driest (0.3 inches).

MonthMean tempPrecipRainy days
January39°7.2″23
February41°5.5″19
March44°5.9″22
April50°3.9″19
May56°2.7″17
June62°1.7″13
July68°0.3″4
August69°0.5″5
September63°1.9″10
October53°5.7″17
November45°7.1″21
December39°7.2″22

Regional context

West Slope swings from 39°F in January to 68°F in July (29°F) per NOAA NCEI 1991-2020 normals; precipitation in West Slope runs about 49.7 inches on roughly 192 measurable days.

West Slope's moisture rides winter storm tracks: December brings 7.2 inches over 21.9 wet days, while July sees only 0.3 inches across 4.2 days in the dry warm season. That cool-season-wet pattern aligns West Slope with places like Raleigh Hills, OR, West Haven-Sylvan, OR and Cedar Hills, OR.

West Slope reaches its last hard frost near late-May; that is the cue for peas, lettuce, spinach, and radishes. Tomatoes and peppers do best set out two weeks later in West Slope, once nights clear the mid-40s°F. Frost returns to West Slope near early-October, ending the tender-crop season. A creek-bottom lot in West Slope can lag West Slope's last frost 7-10 days behind a south slope.

Similar climates: Raleigh Hills, OR, West Haven-Sylvan, OR, Cedar Hills, OR, Garden Home-Whitford, OR, Beaverton, OR.

Frequently asked

When does it freeze in West Slope?
Frost typically leaves West Slope by mid-May and returns to West Slope near mid-October.
What is the rainy season in West Slope?
Rainfall in West Slope peaks in December near 7.2 inches, out of about 50 inches annually.
What is the warmest month in West Slope?
West Slope peaks in August, when the mean runs near 69°F.
What is the coldest month in West Slope?
January is West Slope's coldest month, averaging about 39°F.
When can I start a vegetable garden in West Slope?
Hardy spring crops go in near mid-May in West Slope; tender peppers and squash wait 10–14 days.
How many rainy days does West Slope get?
Expect roughly 192 wet days a year in West Slope.
What hardiness zone is West Slope?
Because West Slope bottoms near 39°F in January, that winter low sets West Slope's USDA zone — verify by ZIP.
What is the 10-day forecast for West Slope?
West Slope's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
Will it rain this week in West Slope?
See this week's day-by-day rain chances for West Slope in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in West Slope?
Current conditions for West Slope and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the West Slope forecast updated?
The West Slope forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in West Slope?
Today's sunrise and sunset times for West Slope are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
How accurate is the weather forecast for West Slope?
The next few days in West Slope's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

Set in a warm-summer Mediterranean zone, West Slope, Oregon swings from 39°F in the heart of winter to 68°F at midsummer — a 29°F arc.

West Slope sees close to 50 inches of precipitation annually, falling across some 192 wet days.

West Slope's 29°F range, set by its 45.5°N position, drives frost timing and what thrives in West Slope.

All cities in Oregon →

Beaverton, OR weather →

ZIP codes in West Slope

  • 97225
  • 97005
  • 97298

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.