Munhall, Pennsylvania Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Munhall weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Drizzle46%0.08″97°69°—
- SundayJul 5Light Drizzle79%—89°71°-8°
- MondayJul 6T-storm w/ Hail73%0.69″82°67°-7°
- TuesdayJul 7Overcast36%—84°64°+2°
- WednesdayJul 8Overcast12%—87°60°+3°
- ThursdayJul 9Light Drizzle50%—89°68°+2°
- FridayJul 10Heavy Drizzle55%—81°67°-8°
AQI 59 (Moderate), driven by PM2.5. AQI projected to climb to 76 over the next 6 hours. PM2.5 at 22.9 µg/m³ (AQI 77) with a 0.99 fine-to-coarse ratio and 3 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 during the projected peak around 7 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 38 now. With UV 3.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 19 around 1 PM.
- Present
- AQI 38
- UV peak
- 3.7 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 19
PM × Wind × Precip
PM2.5 at 22.9 µg/m³ (AQI 77) with a 0.99 fine-to-coarse ratio and 3 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).








































If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:14 PM
- Moonset
- 10:23 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Munhall at a glance
- Today vs. normal: 7°F above 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.
16-Day Forecast — Munhall
- Sat97°69°46%
- Sun89°71°79%
- Mon82°67°73%
- Tue84°64°36%
- Wed87°60°12%
- Thu89°68°50%
- Fri81°67°55%
- Sat85°67°39%
- Sun82°64°30%
- Mon74°60°17%
- Tue79°60°16%
- Wed87°65°29%
- Thu92°68°23%
- Fri91°71°26%
- Sat84°69°32%
- Sun88°68°25%
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 — Munhall
SPC has placed Munhall 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 185 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
July is Munhall's warmest stretch (~73°F) and January its coldest (~28°F); precipitation crests in May at 5.4 inches and ebbs in February to 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, Munhall sees 28°F Januarys and 73°F Julys, a 46°F range, plus around 47.4 inches of precipitation across 221 days.
Rainfall in Munhall stays even across the calendar: May tops out at 5.4 inches over 19.3 rainy days, and February still logs 3.1 inches across 18.2 — a narrow range for Munhall. That lines Munhall up with places like Whitaker, PA, West Homestead, PA and Homestead, PA, fed by overlapping storm tracks.
By mid-April the frosts ease in Munhall, opening the season for kale, peas, spinach, and parsnips. Hold Munhall's tender crops — tomatoes, peppers, basil — until 10-14 days past Munhall's last frost. Munhall's window closes around mid-November as overnight lows return below freezing. In Munhall, low spots run 4-7°F colder than nearby slopes, nudging Munhall's frost dates a week.
Similar climates: Whitaker, PA, West Homestead, PA, Homestead, PA, Rankin, PA, Braddock, PA.
Frequently asked
- When does it freeze in Munhall?
- Frost typically leaves Munhall by mid-April and returns to Munhall near mid-November.
- What is the rainy season in Munhall?
- Munhall sees its heaviest rain in May (around 5.4 inches), part of roughly 47 inches a year.
- What is the warmest month in Munhall?
- July is Munhall's warmest month, averaging about 73°F.
- What is the coldest month in Munhall?
- Munhall bottoms out in January, with a mean near 28°F.
- When can I start a vegetable garden in Munhall?
- Time tomatoes in Munhall for two weeks after mid-April; peas and greens start at Munhall's frost line.
- How many rainy days does Munhall get?
- Expect roughly 221 wet days a year in Munhall.
- What hardiness zone is Munhall?
- Munhall sits in the USDA zone set by January lows near 28°F; the USDA ZIP tool gives the band.
- What is the 10-day forecast for Munhall?
- Munhall'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 Munhall?
- See this week's day-by-day rain chances for Munhall in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Munhall?
- Current conditions for Munhall and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Munhall forecast updated?
- The Munhall forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Munhall?
- Today's sunrise and sunset times for Munhall 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 Munhall?
- The next few days in Munhall's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Munhall, Pennsylvania has a warm-summer humid continental climate: January averages roughly 28°F, July about 73°F, 45°F between them.
Munhall sees close to 47 inches of precipitation annually, falling across some 221 wet days.
Latitude 40.4°N gives Munhall its 45°F swing, and with it the rhythm of Munhall's growing season.
ZIP codes in Munhall
- 15120