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West Conshohocken, Pennsylvania Weather

Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →

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

West Conshohocken, PA
Saturday, July 4 at 8:20 AM
84
°
Clear
Feels like
87°
Humidity
58%
Wind
7 mph
Sunrise
1:37 AM
Sunset
4:33 PM
West Conshohocken, PA
Hour by hour · 24h
24-Hour ForecastWest Conshohocken, PA: 24-hour forecast. Temperatures range from 74 to 102 degrees Fahrenheit with a 47% chance of precipitation at 10 PM.
L 74°H 102°
West Conshohocken, PA
7-day forecast
  1. Today
    Jul 4
    Rain
    47%
    0.18″
    102°74°—
  2. Sunday
    Jul 5
    Heavy Rain
    90%
    2.0″
    96°71°-6°
  3. Monday
    Jul 6
    T-storm w/ Hail
    90%
    0.31″
    75°65°-21°
  4. Tuesday
    Jul 7
    Light Drizzle
    72%
    0.01″
    70°62°-5°
  5. Wednesday
    Jul 8
    Partly Cloudy
    15%
    —
    85°58°+15°
  6. Thursday
    Jul 9
    Mostly Clear
    28%
    —
    91°67°+6°
  7. Friday
    Jul 10
    Light Drizzle
    33%
    —
    91°71°0°
West Conshohocken, PA
Next 24 hours · Warm now
HOT 90°65°88°110°6a12p6p12anow 83°high 102°low 74°PRECIP %
West Conshohocken, PA
Anemometer · 24h winds · from true
NESW
From · True
WNW
288° · veering 9°
Direction
WNW
288°
Sustained
7
mph
Gust
13
mph
Peak 24h
40
avg 6
Beaufort · 2 · LIGHT 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 6 · pk 40 @ 8:00p
01020304050MPHB1B2B3B4B5B6B7B8B9-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 483SUSTGUST
−24h−18h−12h−6hnow
Light breeze veering 9° from the wnw.
West Conshohocken, PA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1006.3
0.0 mb in 3h · steady · 29.72 inHg
Now
1006.3
mb
3h
0.0
mb
12h
-0.1
mb
24h
-3.0
mb
Regime · RAIN
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 1005–1009
1000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR-21h-18h-15h-12h-9h-6h-3h-24hNOW1009.21005.41006.2
−24h−18h−12h−6hnow
Damp, unsettled regime — wet weather lingers nearby.
West Conshohocken, PA
Air quality
64
AQI
Moderate
↑+8 in 6h▲Peak ~71 @ 6 PM

AQI 64 (Moderate), driven by PM2.5. AQI up 8 over the last 6 hours (gradual rise). PM2.5 at 20.0 µg/m³, PM10 at 22.4 µg/m³ — typical background levels with no transport signature.

OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 6 PM.

PM 2.5DRIVERModerate
20.0μg/m³
PM 10Good
22μg/m³
NO₂Good
10μg/m³
OzoneModerate
96μg/m³
UV IndexLow
1.4

What's driving it

Ozone × UV × Sky

Ozone at AQI 45 now. With UV 4.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 28 around 1 PM.

Present
AQI 45
UV peak
4.7 at 1 PM
Sky at peak
clear
Projected peak
AQI 28

PM × Wind × Precip

PM2.5 at 20.0 µg/m³, PM10 at 22.4 µg/m³ — typical background levels with no transport signature.

PM2.5/PM10
0.89
Wind
light
Recent rain
0h in last 6h
Pattern
background

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/m³450
West Conshohocken, PA
Sky cover · visibility · 24h
Cloud cover
0%
CLEAR
100%0%−24h−18h−12h−6hnow
Visibility
61.0mi
UNLIMITED
97 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
12:20 UTC · West Conshohocken, PA · 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
12:20 UTC · West Conshohocken, PA · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
West Conshohocken, PA
Satellite · infrared · animated
West Conshohocken, PA
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
West Conshohocken, PA
Almanac · Saturday, July 4
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
5:05 AM
Sunrise
1:37 AM
Daylight
14h 56m
Sunset
4:33 PM
Civil dusk
9:07 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
West Conshohocken, PA
The moon
Waning Gibbous
82% illuminated
Moonrise
10:55 PM
Moonset
10:04 AM
In sign
♓︎ Pisces
West Conshohocken, PA
Microseason
Jul 1–5

Cicadas claim the afternoon

plant
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

West Conshohocken at a glance

  • Today vs. normal: 12°F above the seasonal normal for this latitude
  • Last frost: April 16 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

16-Day Forecast — West Conshohocken

  1. Sat102°74°47%
  2. Sun96°71°90%
  3. Mon75°65°90%
  4. Tue70°62°72%
  5. Wed85°58°15%
  6. Thu91°67°28%
  7. Fri91°71°33%
  8. Sat82°72°33%
  9. Sun74°67°30%
  10. Mon71°67°16%
  11. Tue82°65°16%
  12. Wed90°67°24%
  13. Thu93°73°23%
  14. Fri95°76°34%
  15. Sat76°72°39%
  16. Sun88°70°35%

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.

SPC Convective Outlook

Storm Prediction Center — West Conshohocken

SPC has placed West Conshohocken in the Slight Risk category for severe thunderstorms today.

  • TODAYSLGTSlight Risk
  • TOMORROWSLGTSlight Risk
  • DAY 3TSTMGeneral Thunderstorms

Scattered severe storms possible. A few tornadoes, hail, and damaging wind gusts possible.

Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.

January 1–5: The year turns in silence.January 6–10: Ice thickens on still water.January 11–15: Shortest shadows lengthen.January 16–20: Pheasants begin to call.January 21–25: Springs begin to thaw.January 26–31: Chickadees announce dawn.February 1–5: East wind softens the frost.February 6–10: Sap begins to rise.February 11–15: First snowdrops appear.February 16–20: Red-winged blackbirds return.February 21–25: Rain begins to replace snow.February 26–28: Skunk cabbage pushes through ice.March 1–5: Ice withdraws from the reservoir.March 6–10: Crocuses open to weak sun.March 11–15: Peepers call from the marsh.March 16–20: Woodcocks spiral at dusk.March 21–25: Equinox — light overtakes dark.March 26–31: Forsythia opens along the fences.April 1–5: Cherry blossoms drift like snow.April 6–10: Warblers appear in the understory.April 11–15: Magnolias bloom and fall in a day.April 16–20: Dogwoods float above the forest.April 21–25: Lilacs perfume the evening.April 26–30: Last frost releases the garden.May 1–5: Warblers flood the Ramble.May 6–10: Tulip poplars light their candles.May 11–15: Shad run up the rivers.May 16–20: Roses open along the stoops.May 21–25: Firefly scouts appear at dusk.May 26–31: Strawberries ripen in the sun.June 1–5: Fireflies rise from the lawn.June 6–10: Elderflowers open in hedgerows.June 11–15: Solstice approaches — longest light.June 16–20: Honeysuckle sweetens the night.June 21–25: Solstice — the sun stands still.June 26–30: Lightning bugs drift through oaks.July 1–5: Cicadas claim the afternoon.July 6–10: Queen Anne's lace lines the roads.July 11–15: Thunder builds each afternoon.July 16–20: Corn reaches for the tassels.July 21–25: Dog days settle in the haze.July 26–31: Katydids begin their chorus.August 1–5: Night falls a minute earlier.August 6–10: Sunflowers face the morning.August 11–15: Goldenrod begins to bloom.August 16–20: Crickets pulse through warm nights.August 21–25: First cool morning surprises.August 26–31: Monarchs stage for flight.September 1–5: School buses reappear.September 6–10: Asters purple the roadsides.September 11–15: Hawk migration over the Hudson.September 16–20: Equinox — dark overtakes light.September 21–25: Apples hang heavy on the branch.September 26–30: Geese begin to chevron south.October 1–5: Witch hazel blooms as others fade.October 6–10: Maples begin to blaze.October 11–15: Frost paints the garden black.October 16–20: Oaks turn bronze and russet.October 21–25: Leaves rattle down the gutters.October 26–31: Clocks fall back — dusk at five.November 1–5: Ginkgos drop overnight.November 6–10: Last leaves cling stubbornly.November 11–15: Juncos arrive from the north.November 16–20: Bare branches reveal the sky.November 21–25: First flurries dust the rooftops.November 26–30: Woodsmoke curls through the block.December 1–5: Darkness settles before dinner.December 6–10: Holly and winterberry persist.December 11–15: Shortest day approaches.December 16–20: Ice begins to form at the edges.December 21–25: Solstice — the sun begins return.December 26–31: The year turns 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

Cicadas claim the afternoon

Annual cicada buzz begins, peaking in the heat of the day.

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——
Aprillettuce, peas, spinach, radishes—
Maylettuce, peas, spinach, radishes, tomatoes, peppers, beans, squashlettuce, peas, radishes
Junetomatoes, peppers, beans, squashlettuce, peas, radishes
Julytomatoes, peppers, beans, squashtomatoes, beans, summer squash
August—tomatoes, beans, summer squash
Septemberfall brassicas, garlic (overwinter), carrotstomatoes, beans, summer squash
Octoberfall brassicas, garlic (overwinter), carrotswinter squash, tomatoes (last)
November——
December——

A year in weather

West Conshohocken's warmest month is July (~77°F mean) and its coldest is January (~31°F). Rainfall peaks in December (4.2 inches) and bottoms out in February (2.9 inches).

MonthMean tempPrecipRainy days
January31°3.4″13
February33°2.9″12
March42°3.7″15
April53°3.9″17
May61°3.7″17
June71°3.7″17
July77°3.3″16
August75°4.0″17
September69°3.7″13
October58°3.0″11
November45°3.6″13
December36°4.2″13

Frequently asked

When does it freeze in West Conshohocken?
In West Conshohocken, expect the last spring frost near mid-April; West Conshohocken's first autumn frost comes around mid-November.
What is the rainy season in West Conshohocken?
West Conshohocken sees its heaviest rain in December (around 4.2 inches), part of roughly 43 inches a year.
What is the warmest month in West Conshohocken?
The warmest stretch in West Conshohocken comes in July, around 77°F on average.
What is the coldest month in West Conshohocken?
On average January is the chilliest month in West Conshohocken, about 31°F.
When can I start a vegetable garden in West Conshohocken?
Time tomatoes in West Conshohocken for two weeks after mid-April; peas and greens start at West Conshohocken's frost line.
How many rainy days does West Conshohocken get?
West Conshohocken averages about 173 days with measurable rain or snow each year.
What hardiness zone is West Conshohocken?
West Conshohocken sits in the USDA zone set by January lows near 31°F; the USDA ZIP tool gives the band.
What is the 10-day forecast for West Conshohocken?
West Conshohocken'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 Conshohocken?
See this week's day-by-day rain chances for West Conshohocken in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in West Conshohocken?
Current conditions for West Conshohocken 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 Conshohocken forecast updated?
The West Conshohocken 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 Conshohocken?
Today's sunrise and sunset times for West Conshohocken 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 Conshohocken?
The next few days in West Conshohocken's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

West Conshohocken's warm-summer humid continental climate in Pennsylvania pairs 31°F Januarys with 77°F Julys, 46°F apart across the seasons.

Yearly precipitation in West Conshohocken totals around 43 inches, spread over about 173 days of rain or snow.

The 46°F gap between West Conshohocken's summer and winter, at 40.1°N, shapes West Conshohocken's frost calendar.

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ZIP codes in West Conshohocken

  • 19428

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.