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Cedar Mill, Oregon Weather

Fireweed Ignites. Day 14 of summer. Read this microseason across nine climate regions →

Cedar Mill weather forecast — hour by hour, 7-day outlook, NOAA radar

Cedar Mill, OR
Saturday, July 4 at 7:10 AM
58
°
Overcast
Feels like
58°
Humidity
84%
Wind
2 mph
Sunrise
10:28 PM
Sunset
2:02 PM
Cedar Mill, OR
Hour by hour · 24h
24-Hour ForecastCedar Mill, OR: 24-hour forecast. Temperatures range from 50 to 75 degrees Fahrenheit.
L 50°H 75°
Cedar Mill, OR
7-day forecast
  1. Today
    Jul 4
    Overcast
    —
    —
    75°55°—
  2. Sunday
    Jul 5
    Overcast
    —
    —
    78°50°+3°
  3. Monday
    Jul 6
    Overcast
    —
    —
    86°53°+8°
  4. Tuesday
    Jul 7
    Overcast
    —
    —
    86°56°0°
  5. Wednesday
    Jul 8
    Overcast
    —
    —
    75°57°-11°
  6. Thursday
    Jul 9
    Clear
    —
    —
    82°53°+7°
  7. Friday
    Jul 10
    Clear
    —
    —
    85°53°+3°
Cedar Mill, OR
Next 24 hours · Cool now
45°63°80°12a6a12p6pnow 58°high 75°low 50°
Cedar Mill, OR
Anemometer · 24h winds · from true
NESW
From · True
NNE
022° · veering 167°
Direction
NNE
022°
Sustained
2
mph
Gust
6
mph
Peak 24h
17
avg 4
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 4 · pk 17 @ 8:00p
01020MPHB1B2B3B4B5-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 152SUSTGUST
−24h−18h−12h−6hnow
Light breeze veering 167° from the nne.
Cedar Mill, OR
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
999.5
+0.6 mb in 3h · rising · 29.52 inHg
Now
999.5
mb
3h
+0.6
mb
12h
+2.1
mb
24h
+0.2
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 997–1000
9909951000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY1030-21h-18h-15h-12h-9h-6h-3h-24hNOW999.8997.4999.5
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Cedar Mill, OR
Air quality
24
AQI
Good
→-3 in 6h

AQI 24 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 7.0 µg/m³ (AQI 39) with a 0.85 fine-to-coarse ratio and 2 mph wind — combustion smoke trapped in calm air, not road dust.

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

PM 2.5DRIVERGood
7.0μg/m³
PM 10Good
8μg/m³
NO₂Good
7μg/m³
OzoneGood
30μg/m³
UV IndexLow
0.4

What's driving it

PM × Wind × Precip

PM2.5 at 7.0 µg/m³ (AQI 39) with a 0.85 fine-to-coarse ratio and 2 mph wind — combustion smoke trapped in calm air, not road dust.

PM2.5/PM10
0.85
Wind
calm
Recent rain
0h in last 6h
Pattern
stagnant smoke

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 TREND50100SATSUNMONTUEWEDTHUFRISAT7-DAY PM2.5 TREND · μg/m³300
Cedar Mill, OR
Sky cover · visibility · 24h
Cloud cover
100%
OVERCAST
100%0%−24h−18h−12h−6hnow
Visibility
32.2mi
UNLIMITED
74 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
14:10 UTC · Cedar Mill, 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
14:10 UTC · Cedar Mill, OR · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Cedar Mill, OR
Satellite · infrared · animated
Cedar Mill, OR
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Cedar Mill, OR
Almanac · Saturday, July 4
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
4:51 AM
Sunrise
10:28 PM
Daylight
15h 34m
Sunset
2:02 PM
Civil dusk
9:41 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Cedar Mill, OR
The moon
Waning Gibbous
81% illuminated
Moonrise
11:16 PM
Moonset
10:16 AM
In sign
♓︎ Pisces
Cedar Mill, OR
Microseason
Jul 1–5

Fireweed Ignites

fish
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Cedar Mill at a glance

  • Today vs. normal: 8°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 — Cedar Mill

  1. Sat75°55°1%
  2. Sun78°50°0%
  3. Mon86°53°0%
  4. Tue86°56°1%
  5. Wed75°57°2%
  6. Thu82°53°0%
  7. Fri85°53°0%
  8. Sat79°59°5%
  9. Sun80°54°3%
  10. Mon78°51°4%
  11. Tue90°50°2%
  12. Wed99°59°3%
  13. Thu99°69°3%
  14. Fri103°70°3%
  15. Sat96°69°3%
  16. Sun97°66°0%

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

Right now in the garden

Peak growing season

As of July 4, 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 185 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

Cedar Mill's warmest month is August (~69°F mean) and its coldest is January (~39°F). Rainfall peaks in December (7.2 inches) and bottoms out in July (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

Cedar Mill's climate, from NOAA NCEI 1991-2020 station normals, pairs 39°F Januarys with 68°F Julys — a 29°F swing. About 49.7 inches of precipitation falls over roughly 192 days a year.

Precipitation in Cedar Mill peaks in the cool season: December averages 7.2 inches across 21.9 storm-fed days, while July bottoms out at 0.3 inches over just 4.2 rainy days. That groups Cedar Mill with places like Marlene Village, OR, Oak Hills, OR and Cedar Hills, OR on the same cool-season storm track.

The cool-season window in Cedar Mill starts at late-May, when nights stop freezing — think peas, lettuce, spinach, and radishes. In Cedar Mill, warm-season transplants — tomatoes, peppers, basil — wait two weeks past Cedar Mill's frost date. Cedar Mill's window closes around early-October as overnight lows return below freezing. In Cedar Mill, low spots run 4-7°F colder than nearby slopes, nudging Cedar Mill's frost dates a week.

Similar climates: Marlene Village, OR, Oak Hills, OR, Cedar Hills, OR, West Haven-Sylvan, OR, Bethany, OR.

Frequently asked

When does it freeze in Cedar Mill?
Cedar Mill's last spring frost lands near mid-May, and in Cedar Mill the first fall frost follows around mid-October.
What is the rainy season in Cedar Mill?
December is the wettest month in Cedar Mill, about 7.2 inches on average; the year totals roughly 50 inches.
What is the warmest month in Cedar Mill?
August is Cedar Mill's warmest month, averaging about 69°F.
What is the coldest month in Cedar Mill?
Cedar Mill bottoms out in January, with a mean near 39°F.
When can I start a vegetable garden in Cedar Mill?
Time tomatoes in Cedar Mill for two weeks after mid-May; peas and greens start at Cedar Mill's frost line.
How many rainy days does Cedar Mill get?
Expect roughly 192 wet days a year in Cedar Mill.
What hardiness zone is Cedar Mill?
Cedar Mill sits in the USDA zone set by January lows near 39°F; the USDA ZIP tool gives the band.
What is the 10-day forecast for Cedar Mill?
Cedar Mill'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 Cedar Mill?
See this week's day-by-day rain chances for Cedar Mill in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Cedar Mill?
Current conditions for Cedar Mill and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the Cedar Mill forecast updated?
The Cedar Mill forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in Cedar Mill?
Today's sunrise and sunset times for Cedar Mill 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 Cedar Mill?
The next few days in Cedar Mill's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

Cedar Mill, Oregon occupies a warm-summer Mediterranean zone, with January means near 39°F and July around 68°F — a 29°F swing.

Rain and snow bring Cedar Mill roughly 50 inches a year across approximately 192 measurable-precipitation days.

The 29°F gap between Cedar Mill's summer and winter, at 45.5°N, shapes Cedar Mill's frost calendar.

All cities in Oregon →

Beaverton, OR weather →

ZIP codes in Cedar Mill

  • 97229
  • 97296

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.