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Wynnewood, Pennsylvania Weather

Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →

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

Wynnewood, PA
Sunday, July 5 at 4:26 PM
91
°
Mostly Clear
Feels like
99°
Humidity
50%
Wind
2 mph
Sunrise
1:38 AM
Sunset
4:33 PM
Wynnewood, PA
Hour by hour · 24h
24-Hour ForecastWynnewood, PA: 24-hour forecast. Temperatures range from 70 to 91 degrees Fahrenheit with a 56% chance of precipitation at 2 AM.
L 70°H 91°
Wynnewood, PA
7-day forecast
  1. Today
    Jul 5
    Light Showers
    57%
    0.09″
    91°71°—
  2. Monday
    Jul 6
    Heavy Rain
    56%
    0.84″
    73°69°-18°
  3. Tuesday
    Jul 7
    Light Drizzle
    55%
    0.01″
    71°65°-2°
  4. Wednesday
    Jul 8
    Overcast
    38%
    —
    83°66°+12°
  5. Thursday
    Jul 9
    Light Drizzle
    29%
    —
    88°69°+5°
  6. Friday
    Jul 10
    Overcast
    34%
    —
    89°72°+1°
  7. Saturday
    Jul 11
    Overcast
    38%
    —
    86°69°-3°
Wynnewood, PA
Next 24 hours · Hot now
HOT 90°66°81°96°12p6p12a6anow 91°high 91°low 70°PRECIP %
Wynnewood, PA
Anemometer · 24h winds · from true
NESW
From · True
SSE
153° · backing 108°
Direction
SSE
153°
Sustained
2
mph
Gust
5
mph
Peak 24h
29
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 29 @ 9:00p
01020MPHB1B2B3B4B5-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 219SUSTGUST
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
Wynnewood, PA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1002.4
-1.1 mb in 3h · falling · 29.60 inHg
Now
1002.4
mb
3h
-1.1
mb
12h
+0.7
mb
24h
+1.8
mb
Regime · RAIN
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 999–1005
9951000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY1030-21h-18h-15h-12h-9h-6h-3h-24hNOW1004.5999.31002.4
−24h−18h−12h−6hnow
Pressure giving way — clouds thicken and rain edges closer.
Wynnewood, PA
Air quality
102
AQI
Unhealthy for Sensitive Groups
↑+62 in 6h▲Peak ~135 @ 11 PM

AQI 102 (Unhealthy for Sensitive Groups), driven by Ozone. AQI up 62 in the last 6 hours — air quality is degrading. Ozone at AQI 133 — peak already passed at 1 PM under partly cloudy skies. Levels should ease through evening.

CAUTION Sensitive groups (children, elderly, respiratory conditions) should limit prolonged outdoor exertion.

PM 2.5Moderate
13.3μg/m³
PM 10Good
14μg/m³
NO₂Good
3μg/m³
OzoneDRIVERUnhealthy
157μg/m³
UV IndexLow
1.1

What's driving it

Ozone × UV × Sky

Ozone at AQI 133 — peak already passed at 1 PM under partly cloudy skies. Levels should ease through evening.

Present
AQI 133
UV peak
1.0 at earlier today
Sky at peak
partly cloudy
Projected peak
AQI 133

PM × Wind × Precip

PM2.5 at 13.3 µg/m³, PM10 at 14.3 µg/m³ — typical background levels with no transport signature.

PM2.5/PM10
0.93
Wind
calm
Recent rain
1h 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 TREND50100SUNMONTUEWEDTHUFRISATSUN7-DAY PM2.5 TREND · μg/m³450
Wynnewood, PA
Sky cover · visibility · 24h
Cloud cover
34%
MOSTLY CLEAR
100%0%−24h−18h−12h−6hnow
Visibility
74.6mi
UNLIMITED
113 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
20:26 UTC · Wynnewood, 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
20:26 UTC · Wynnewood, PA · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Wynnewood, PA
Satellite · infrared · animated
Wynnewood, PA
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Wynnewood, PA
Almanac · Sunday, July 5
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
5:06 AM
Sunrise
1:38 AM
Daylight
14h 55m
Sunset
4:33 PM
Civil dusk
9:06 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Wynnewood, PA
The moon
Waning Gibbous
69% illuminated
Moonrise
11:18 PM
Moonset
11:10 AM
In sign
♓︎ Pisces
Wynnewood, PA
Microseason
Jul 1–5

Cicadas claim the afternoon

fish
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Wynnewood at a glance

  • Today vs. normal: 19°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.

ZIP code: 19096

16-Day Forecast — Wynnewood

  1. Sun92°71°57%
  2. Mon73°69°56%
  3. Tue71°65°55%
  4. Wed83°66°38%
  5. Thu88°69°29%
  6. Fri89°72°34%
  7. Sat86°69°38%
  8. Sun81°69°18%
  9. Mon88°68°17%
  10. Tue74°65°12%
  11. Wed77°65°13%
  12. Thu79°64°23%
  13. Fri88°68°22%
  14. Sat88°70°26%
  15. Sun79°70°26%
  16. Mon70°66°23%

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.

SPC Convective Outlook

Storm Prediction Center — Wynnewood

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

  • TODAYSLGTSlight Risk
  • TOMORROWTSTMGeneral Thunderstorms
  • DAY 3NONENo severe risk

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 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——
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

The year in Wynnewood tops out in July (~77°F) and dips lowest in January (~31°F), with December wettest at 4.2 inches and February driest at 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

Regional context

In Wynnewood, NOAA NCEI 1991-2020 normals put January near 31°F and July near 77°F — a 46°F seasonal arc — with about 43.1 inches of precipitation over 173 rainy or snowy days.

Rainfall in Wynnewood stays even across the calendar: December tops out at 4.2 inches over 13.0 rainy days, and February still logs 2.9 inches across 12.4 — a narrow range for Wynnewood. That lines Wynnewood up with places like Narberth, PA, Merion Station, PA and Penn Wynne, PA, fed by overlapping storm tracks.

Around mid-April, Wynnewood sheds its freezing nights — peas, lettuce, spinach, and radishes go into Wynnewood's beds. Heat-demanding starts go out a fortnight on in Wynnewood, after the soil warms and cold snaps clear. The season ends by mid-November in Wynnewood, once hard frosts set back in. A creek-bottom lot in Wynnewood can lag Wynnewood's last frost 7-10 days behind a south slope.

Similar climates: Narberth, PA, Merion Station, PA, Penn Wynne, PA, Ardmore, PA, Haverford College, PA.

Frequently asked

When does it freeze in Wynnewood?
Frost typically leaves Wynnewood by mid-April and returns to Wynnewood near mid-November.
What is the rainy season in Wynnewood?
Rainfall in Wynnewood peaks in December near 4.2 inches, out of about 43 inches annually.
What is the warmest month in Wynnewood?
On average July tops the year in Wynnewood at about 77°F.
What is the coldest month in Wynnewood?
The coldest stretch in Wynnewood falls in January, around 31°F on average.
When can I start a vegetable garden in Wynnewood?
Hardy spring crops go in near mid-April in Wynnewood; tender peppers and squash wait 10–14 days.
How many rainy days does Wynnewood get?
Wynnewood records around 173 days of measurable precipitation annually.
What hardiness zone is Wynnewood?
Since January in Wynnewood averages 31°F, Wynnewood's USDA zone follows that floor — confirm it by ZIP.
What is the 10-day forecast for Wynnewood?
Wynnewood'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 Wynnewood?
See this week's day-by-day rain chances for Wynnewood in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Wynnewood?
Current conditions for Wynnewood and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the Wynnewood forecast updated?
The Wynnewood forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in Wynnewood?
Today's sunrise and sunset times for Wynnewood 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 Wynnewood?
The next few days in Wynnewood's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

In Wynnewood, Pennsylvania, the warm-summer humid continental climate runs from about 31°F in January to 77°F in July, a 46°F seasonal range.

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

Wynnewood's 46°F range, set by its 40.0°N position, drives frost timing and what thrives in Wynnewood.

All cities in Pennsylvania →

Philadelphia, PA weather →

ZIP codes in Wynnewood

  • 19096

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.