Green Tree, Pennsylvania Weather
Night falls a minute earlier. Day 43 of summer. Read this microseason across nine climate regions →
Green Tree weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayAug 2Showers65%0.80″80°69°—
- MondayAug 3Light Drizzle10%0.01″78°69°-2°
- TuesdayAug 4Overcast——85°62°+7°
- WednesdayAug 5Drizzle43%—87°68°+2°
- ThursdayAug 6Thunderstorm52%—88°68°+1°
- FridayAug 7Thunderstorm61%—86°70°-2°
- SaturdayAug 8Light Drizzle43%—85°68°-1°
AQI 53 (Moderate), driven by PM2.5. AQI down 6 over the last 6 hours (gradual decline). PM scrubbed by 3 hours of recent rain — PM2.5 down to 8.0 µg/m³, PM10 to 8.4 µg/m³.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 34. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
- Present
- AQI 34
- UV peak
- 1.3 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 4
PM × Wind × Precip
PM scrubbed by 3 hours of recent rain — PM2.5 down to 8.0 µg/m³, PM10 to 8.4 µg/m³.
- PM2.5/PM10
- 0.95
- Wind
- light
- Recent rain
- 3h in last 6h
- Pattern
- washed out
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).








































Red sky at night, sailor's delight.
- Moonrise
- 10:03 PM
- Moonset
- 10:23 AM
- In sign
- ♓︎ Pisces
Night falls a minute earlier
Green Tree at a glance
- Today vs. normal: 9°F above the seasonal normal for this latitude
- Last frost: April 19 (climatological average for this latitude)
- Microseason: Aug 1–5
- Planting window: Sow fall peas. Start kale and collard seedlings for fall.
16-Day Forecast — Green Tree
- Sun80°69°65%
- Mon78°69°10%
- Tue85°62°2%
- Wed87°68°43%
- Thu88°68°52%
- Fri86°70°61%
- Sat85°68°43%
- Sun92°69°38%
- Mon93°71°37%
- Tue85°69°37%
- Wed87°66°27%
- Thu90°70°44%
- Fri92°72°43%
- Sat95°73°32%
- Sun89°72°26%
- Mon89°68°23%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of August 2, 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 — Green Tree
SPC has placed Green Tree in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Isolated severe storms possible. Limited threat for hail or damaging wind.
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.
Sun & seasons in Green Tree
Green Tree sits in Allegheny County, where the year’s longest day runs 15h 4m of daylight and its shortest just 9h 17m — a swing of +5h 47m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.
Philadelphia, the state’s largest city, lies about 261 miles to the E. The nearest town Green Tree tracks is Pittsburgh, roughly 4 miles to the ENE.
Air quality in Green Tree’s county has trended cleaner since 2020; its cleanest year on record was 2024 (median AQI 52). See the full air-quality history for Green Tree.
Microseason · August 1–5
Night falls a minute earlier
Sunset retreats perceptibly — daylight shortening speeds up.
Day 214 of 365 · Wedge 43 of 72
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | — | — |
| April | lettuce, peas, spinach, radishes | — |
| May | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | tomatoes, peppers, beans, squash | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | — | — |
| December | — | — |
A year in weather
In Green Tree, July runs warmest near 73°F and January coldest around 28°F, while May is the wettest month (5.4 inches) and February the driest (3.1 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 28° | 3.4″ | 20 |
| February | 31° | 3.1″ | 18 |
| March | 39° | 4.1″ | 19 |
| April | 51° | 4.3″ | 20 |
| May | 59° | 5.4″ | 19 |
| June | 68° | 4.7″ | 19 |
| July | 73° | 4.4″ | 18 |
| August | 73° | 4.0″ | 18 |
| September | 66° | 3.4″ | 16 |
| October | 55° | 3.2″ | 15 |
| November | 41° | 3.5″ | 18 |
| December | 32° | 3.9″ | 20 |
Regional context
By the nearest station's NOAA NCEI 1991-2020 normals, Green Tree sees 28°F Januarys and 73°F Julys, a 46°F range, plus around 47.4 inches of precipitation across 221 days.
Green Tree'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 Green Tree's rain calendar. That lines Green Tree up with places like Crafton, PA, Carnegie, PA and Dormont, PA, fed by overlapping storm tracks.
Green Tree's growing window opens around mid-April, once Green Tree's overnight lows stop freezing — sow kale, peas, spinach, and parsnips. Hold Green Tree's tender crops — tomatoes, peppers, basil — until 10-14 days past Green Tree's last frost. Green Tree's window closes around mid-November as overnight lows return below freezing. In Green Tree, low spots run 4-7°F colder than nearby slopes, nudging Green Tree's frost dates a week.
Similar climates: Crafton, PA, Carnegie, PA, Dormont, PA, Rosslyn Farms, PA, Thornburg, PA.
Frequently asked
- When does it freeze in Green Tree?
- Green Tree's last spring frost lands near mid-April, and in Green Tree the first fall frost follows around mid-November.
- What is the rainy season in Green Tree?
- Green Tree sees its heaviest rain in May (around 5.4 inches), part of roughly 47 inches a year.
- What is the warmest month in Green Tree?
- July is Green Tree's warmest month, averaging about 73°F.
- What is the coldest month in Green Tree?
- Green Tree bottoms out in January, with a mean near 28°F.
- When can I start a vegetable garden in Green Tree?
- Time tomatoes in Green Tree for two weeks after mid-April; peas and greens start at Green Tree's frost line.
- How many rainy days does Green Tree get?
- Expect roughly 221 wet days a year in Green Tree.
- What hardiness zone is Green Tree?
- Green Tree's USDA zone comes from its January mean (28°F); enter the ZIP on the USDA lookup for the number.
- What is the 10-day forecast for Green Tree?
- Green Tree'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 Green Tree?
- See this week's day-by-day rain chances for Green Tree in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Green Tree?
- Current conditions for Green Tree and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Green Tree forecast updated?
- The Green Tree forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Green Tree?
- Today's sunrise and sunset times for Green Tree 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 Green Tree?
- The next few days in Green Tree's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Green Tree, Pennsylvania has a warm-summer humid continental climate: January averages roughly 28°F, July about 73°F, 45°F between them.
Green Tree sees close to 47 inches of precipitation annually, falling across some 221 wet days.
Latitude 40.4°N gives Green Tree its 45°F swing, and with it the rhythm of Green Tree's growing season.
ZIP codes in Green Tree
- 15205
- 15220
- 15242
- 15244
- 15283