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Allison Park, Pennsylvania Weather

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

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

Allison Park, PA
Saturday, July 4 at 8:21 AM
76
°
Clear
Feels like
80°
Humidity
72%
Wind
4 mph
Sunrise
1:54 AM
Sunset
4:53 PM
Allison Park, PA
Hour by hour · 24h
24-Hour ForecastAllison Park, PA: 24-hour forecast. Temperatures range from 70 to 94 degrees Fahrenheit with a 35% chance of precipitation at 6 PM.
L 70°H 94°
Allison Park, PA
7-day forecast
  1. Today
    Jul 4
    Drizzle
    38%
    0.03″
    94°68°—
  2. Sunday
    Jul 5
    Heavy Rain
    78%
    1.1″
    87°70°-7°
  3. Monday
    Jul 6
    T-storm w/ Hail
    71%
    0.06″
    79°66°-8°
  4. Tuesday
    Jul 7
    Overcast
    29%
    —
    84°64°+5°
  5. Wednesday
    Jul 8
    Overcast
    —
    —
    87°59°+3°
  6. Thursday
    Jul 9
    Overcast
    48%
    —
    90°65°+3°
  7. Friday
    Jul 10
    Drizzle
    54%
    —
    81°67°-9°
Allison Park, PA
Next 24 hours · Mild now
HOT 90°65°83°100°6a12p6p12anow 75°high 94°low 70°PRECIP %
Allison Park, PA
Anemometer · 24h winds · from true
NESW
From · True
SSW
208° · backing 56°
Direction
SSW
208°
Sustained
4
mph
Gust
9
mph
Peak 24h
25
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 25 @ 10:00p
0102030MPHB1B2B3B4B5B6-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 243SUSTGUST
−24h−18h−12h−6hnow
Light breeze backing 56° from the ssw.
Allison Park, PA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
976.8
+0.8 mb in 3h · rising · 28.84 inHg
Now
976.8
mb
3h
+0.8
mb
12h
+0.6
mb
24h
-2.2
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 976–979
970975980985-21h-18h-15h-12h-9h-6h-3h-24hNOW979.4975.8976.7
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Allison Park, PA
Air quality
59
AQI
Moderate
→0 in 6h

AQI 59 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 22.9 µg/m³ (AQI 77) with a 0.99 fine-to-coarse ratio and 4 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 2.5DRIVERModerate
22.9μg/m³
PM 10Good
23μg/m³
NO₂Good
15μg/m³
OzoneModerate
80μg/m³
UV IndexLow
1.1

What's driving it

Ozone × UV × Sky

Ozone at AQI 38 now. With UV 3.7 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 13 around 1 PM.

Present
AQI 38
UV peak
3.7 at 1 PM
Sky at peak
partly cloudy
Projected peak
AQI 13

PM × Wind × Precip

PM2.5 at 22.9 µg/m³ (AQI 77) with a 0.99 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.

PM2.5/PM10
0.99
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/m³420
Allison Park, PA
Sky cover · visibility · 24h
Cloud cover
0%
CLEAR
100%0%−24h−18h−12h−6hnow
Visibility
43.0mi
UNLIMITED
79 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
12:21 UTC · Allison Park, 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
12:21 UTC · Allison Park, PA · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Allison Park, PA
Satellite · infrared · animated
Allison Park, PA
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Allison Park, PA
Almanac · Saturday, July 4
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
5:22 AM
Sunrise
1:54 AM
Daylight
14h 59m
Sunset
4:53 PM
Civil dusk
9:28 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Allison Park, PA
The moon
Waning Gibbous
82% illuminated
Moonrise
11:14 PM
Moonset
10:23 AM
In sign
♓︎ Pisces
Allison Park, PA
Microseason
Jul 1–5

Cicadas claim the afternoon

plant
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Allison Park at a glance

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

ZIP code: 15101

16-Day Forecast — Allison Park

  1. Sat94°68°38%
  2. Sun87°70°78%
  3. Mon79°66°71%
  4. Tue84°64°29%
  5. Wed87°59°9%
  6. Thu90°65°48%
  7. Fri81°67°54%
  8. Sat85°66°36%
  9. Sun82°63°28%
  10. Mon75°59°15%
  11. Tue78°58°14%
  12. Wed87°64°27%
  13. Thu91°66°19%
  14. Fri92°68°45%
  15. Sat85°68°35%
  16. Sun87°65°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 — Allison Park

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

  • TODAYSLGTSlight Risk
  • TOMORROWTSTMGeneral Thunderstorms
  • 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

The year in Allison Park tops out in July (~73°F) and dips lowest in January (~28°F), with May wettest at 5.4 inches and February driest at 3.1 inches.

MonthMean tempPrecipRainy days
January28°3.4″20
February31°3.1″18
March39°4.1″19
April51°4.3″20
May59°5.4″19
June68°4.7″19
July73°4.4″18
August73°4.0″18
September66°3.4″16
October55°3.2″15
November41°3.5″18
December32°3.9″20

Regional context

In Allison Park, NOAA NCEI 1991-2020 normals put January near 28°F and July near 73°F — a 46°F seasonal arc — with about 47.4 inches of precipitation over 221 rainy or snowy days.

Allison Park's precipitation spreads evenly: May peaks at 5.4 inches on 19.3 wet days, while February holds 3.1 inches over 18.2 — no month dominates Allison Park's rain calendar. It is a balanced pattern Allison Park shares with places like Glenshaw, PA, Dorseyville, PA and Gibsonia, PA.

Once Allison Park passes mid-April, overnight freezes fade and kale, peas, spinach, and parsnips can be sown. Heat-demanding starts go out a fortnight on in Allison Park, after the soil warms and cold snaps clear. By mid-November, frost is back in Allison Park — protect or harvest anything tender. A creek-bottom lot in Allison Park can lag Allison Park's last frost 7-10 days behind a south slope.

Similar climates: Glenshaw, PA, Dorseyville, PA, Gibsonia, PA, Fox Chapel, PA, Etna, PA.

Frequently asked

When does it freeze in Allison Park?
In Allison Park, expect the last spring frost near mid-April; Allison Park's first autumn frost comes around mid-November.
What is the rainy season in Allison Park?
Rainfall in Allison Park peaks in May near 5.4 inches, out of about 47 inches annually.
What is the warmest month in Allison Park?
Allison Park peaks in July, when the mean runs near 73°F.
What is the coldest month in Allison Park?
January is Allison Park's coldest month, averaging about 28°F.
When can I start a vegetable garden in Allison Park?
In Allison Park, sow peas and hardy greens around mid-April; Allison Park's tomatoes and peppers wait two weeks more.
How many rainy days does Allison Park get?
Allison Park records around 221 days of measurable precipitation annually.
What hardiness zone is Allison Park?
Since January in Allison Park averages 28°F, Allison Park's USDA zone follows that floor — confirm it by ZIP.
What is the 10-day forecast for Allison Park?
Allison Park'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 Allison Park?
See this week's day-by-day rain chances for Allison Park in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Allison Park?
Current conditions for Allison Park and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the Allison Park forecast updated?
The Allison Park forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in Allison Park?
Today's sunrise and sunset times for Allison Park 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 Allison Park?
The next few days in Allison Park's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

Set in a warm-summer humid continental zone, Allison Park, Pennsylvania swings from 28°F in the heart of winter to 73°F at midsummer — a 45°F arc.

Across the year, Allison Park collects about 47 inches of precipitation over roughly 221 days with measurable rain or snow.

Allison Park's 45°F range, set by its 40.6°N position, drives frost timing and what thrives in Allison Park.

All cities in Pennsylvania →

Pittsburgh, PA weather →

ZIP codes in Allison Park

  • 15101
  • 15091

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.