Hostetter, Pennsylvania Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Hostetter weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Rain84%1.6″90°68°—
- SundayJul 5Heavy Showers41%0.35″87°69°-3°
- MondayJul 6Thunderstorm81%0.02″81°68°-6°
- TuesdayJul 7Thunderstorm55%—76°66°-5°
- WednesdayJul 8Light Showers18%0.01″81°67°+5°
- ThursdayJul 9Light Drizzle29%—83°63°+2°
- FridayJul 10Light Drizzle71%—77°67°-6°
AQI 100 (Moderate), driven by Ozone. AQI up 49 in the last 6 hours — air quality is degrading. Ozone at AQI 43 now. With UV 0.1 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 7 around 1 PM.
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 43 now. With UV 0.1 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 7 around 1 PM.
- Present
- AQI 43
- UV peak
- 0.1 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 7
PM × Wind × Precip
PM scrubbed by 3 hours of recent rain — PM2.5 down to 6.4 µg/m³, PM10 to 6.5 µg/m³.
- PM2.5/PM10
- 0.98
- Wind
- breezy
- 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).








































If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:35 PM
- Moonset
- 11:27 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Hostetter at a glance
- Today vs. normal: 3°F below the seasonal normal for this latitude
- Last frost: April 18 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 15638
16-Day Forecast — Hostetter
- Sat90°68°84%
- Sun87°69°41%
- Mon81°68°81%
- Tue76°66°55%
- Wed81°67°18%
- Thu83°63°29%
- Fri77°67°71%
- Sat78°61°57%
- Sun78°56°29%
- Mon79°54°31%
- Tue79°59°21%
- Wed80°60°35%
- Thu77°55°35%
- Fri87°61°34%
- Sat86°65°32%
- Sun74°66°46%
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 — Hostetter
SPC has placed Hostetter in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWMRGLMarginal 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.
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
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
Hostetter's warmest month is July (~71°F mean) and its coldest is January (~29°F). Rainfall peaks in June (4.9 inches) and bottoms out in February (2.2 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 29° | 3.3″ | 8 |
| February | 31° | 2.2″ | 6 |
| March | 39° | 3.4″ | 8 |
| April | 49° | 3.6″ | 9 |
| May | 59° | 4.3″ | 9 |
| June | 67° | 4.9″ | 9 |
| July | 71° | 4.4″ | 9 |
| August | 70° | 4.0″ | 7 |
| September | 63° | 3.5″ | 7 |
| October | 52° | 3.2″ | 6 |
| November | 42° | 3.4″ | 7 |
| December | 34° | 3.8″ | 8 |
Regional context
Per NOAA NCEI 1991-2020 normals, Hostetter runs from a 29°F January mean to 71°F in July, a 42°F seasonal spread, with near 43.9 inches of precipitation across about 92 wet days.
Hostetter's precipitation spreads evenly: June peaks at 4.9 inches on 9.0 wet days, while February holds 2.2 inches over 5.8 — no month dominates Hostetter's rain calendar. That lines Hostetter up with places like St. Vincent College, PA, Youngstown, PA and Lawson Heights, PA, fed by overlapping storm tracks.
Once Hostetter passes mid-April, overnight freezes fade and kale, peas, spinach, and parsnips can be sown. Hostetter's heat-lovers — tomatoes, peppers, squash — hold off until Hostetter's frost risk clears, 10-14 days on. The season ends by mid-November in Hostetter, once hard frosts set back in. A creek-bottom lot in Hostetter can lag Hostetter's last frost 7-10 days behind a south slope.
Similar climates: St. Vincent College, PA, Youngstown, PA, Lawson Heights, PA, Latrobe, PA, Loyalhanna, PA.
Frequently asked
- When does it freeze in Hostetter?
- In Hostetter, expect the last spring frost near mid-April; Hostetter's first autumn frost comes around mid-November.
- What is the rainy season in Hostetter?
- Rainfall in Hostetter peaks in June near 4.9 inches, out of about 44 inches annually.
- What is the warmest month in Hostetter?
- On average July tops the year in Hostetter at about 71°F.
- What is the coldest month in Hostetter?
- The coldest stretch in Hostetter falls in January, around 29°F on average.
- When can I start a vegetable garden in Hostetter?
- In Hostetter, sow peas and hardy greens around mid-April; Hostetter's tomatoes and peppers wait two weeks more.
- How many rainy days does Hostetter get?
- Hostetter averages about 92 days with measurable rain or snow each year.
- What hardiness zone is Hostetter?
- With January around 29°F, Hostetter's zone reflects that minimum — the USDA ZIP map confirms Hostetter's band.
- What is the 10-day forecast for Hostetter?
- Hostetter'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 Hostetter?
- See this week's day-by-day rain chances for Hostetter in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Hostetter?
- Current conditions for Hostetter and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Hostetter forecast updated?
- The Hostetter forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Hostetter?
- Today's sunrise and sunset times for Hostetter 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 Hostetter?
- The next few days in Hostetter's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
The warm-summer humid continental climate of Hostetter, Pennsylvania carries typical Januarys near 29°F and Julys around 71°F — 42°F of seasonal travel.
In a typical year Hostetter records about 44 inches of precipitation on around 92 days.
From 40.3°N, Hostetter sees a 42°F seasonal swing that governs Hostetter's planting and frost windows.
ZIP codes in Hostetter
- 15638
- 15650