Wyomissing, Pennsylvania Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Wyomissing weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Rain41%0.23″101°74°—
- SundayJul 5Heavy Rain90%1.1″95°71°-6°
- MondayJul 6Thunderstorm90%0.15″76°63°-19°
- TuesdayJul 7Light Drizzle72%0.01″71°59°-5°
- WednesdayJul 8Overcast16%—82°57°+11°
- ThursdayJul 9Light Drizzle34%—88°63°+6°
- FridayJul 10Light Drizzle36%0.01″88°69°0°
AQI 60 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±4 points). PM2.5 at 13.9 µg/m³ (AQI 60) with a 0.95 fine-to-coarse ratio and 5 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.
What's driving it
Ozone × UV × Sky
Ozone at AQI 37 now. With UV 1.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 9 around 1 PM.
- Present
- AQI 37
- UV peak
- 1.3 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 9
PM × Wind × Precip
PM2.5 at 13.9 µg/m³ (AQI 60) with a 0.95 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.95
- Wind
- light
- 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
- 10:57 PM
- Moonset
- 10:07 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Wyomissing at a glance
- Today vs. normal: 13°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 — Wyomissing
- Sat101°74°41%
- Sun95°71°90%
- Mon76°63°90%
- Tue71°59°72%
- Wed82°57°16%
- Thu88°63°34%
- Fri88°69°36%
- Sat83°71°31%
- Sun72°65°29%
- Mon73°65°14%
- Tue79°65°17%
- Wed86°65°30%
- Thu91°71°29%
- Fri92°71°36%
- Sat80°71°36%
- Sun87°68°39%
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 — Wyomissing
SPC has placed Wyomissing in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWSLGTSlight 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
The year in Wyomissing tops out in July (~76°F) and dips lowest in January (~29°F), with May wettest at 4.0 inches and February driest at 2.8 inches.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 29° | 3.2″ | 14 |
| February | 32° | 2.8″ | 13 |
| March | 40° | 3.5″ | 16 |
| April | 52° | 3.8″ | 17 |
| May | 61° | 4.0″ | 18 |
| June | 70° | 3.9″ | 17 |
| July | 76° | 3.3″ | 17 |
| August | 75° | 3.8″ | 17 |
| September | 68° | 3.6″ | 14 |
| October | 57° | 3.0″ | 12 |
| November | 43° | 3.6″ | 14 |
| December | 34° | 4.0″ | 14 |
Regional context
By the nearest station's NOAA NCEI 1991-2020 normals, Wyomissing sees 29°F Januarys and 76°F Julys, a 47°F range, plus around 42.6 inches of precipitation across 183 days.
Wyomissing's precipitation spreads evenly: May peaks at 4.0 inches on 18.4 wet days, while February holds 2.8 inches over 13.4 — no month dominates Wyomissing's rain calendar. It is a balanced pattern Wyomissing shares with places like Colony Park, PA, West Reading, PA and West Lawn, PA.
By mid-April the frosts ease in Wyomissing, opening the season for kale, peas, spinach, and parsnips. Hold Wyomissing's tender crops — tomatoes, peppers, basil — until 10-14 days past Wyomissing's last frost. Around mid-November, freezing nights resume in Wyomissing and tender crops must come in. In Wyomissing, low spots run 4-7°F colder than nearby slopes, nudging Wyomissing's frost dates a week.
Similar climates: Colony Park, PA, West Reading, PA, West Lawn, PA, West Wyomissing, PA, Lincoln Park, PA.
Frequently asked
- When does it freeze in Wyomissing?
- In Wyomissing, expect the last spring frost near mid-April; Wyomissing's first autumn frost comes around mid-November.
- What is the rainy season in Wyomissing?
- May is the wettest month in Wyomissing, about 4.0 inches on average; the year totals roughly 43 inches.
- What is the warmest month in Wyomissing?
- The warmest stretch in Wyomissing comes in July, around 76°F on average.
- What is the coldest month in Wyomissing?
- On average January is the chilliest month in Wyomissing, about 29°F.
- When can I start a vegetable garden in Wyomissing?
- Wyomissing's last frost (mid-April) cues hardy greens; in Wyomissing, hold heat-lovers two weeks past.
- How many rainy days does Wyomissing get?
- Expect roughly 183 wet days a year in Wyomissing.
- What hardiness zone is Wyomissing?
- Wyomissing's hardiness zone tracks its winter low; with January near 29°F, check the USDA ZIP map for the exact zone.
- What is the 10-day forecast for Wyomissing?
- Wyomissing'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 Wyomissing?
- See this week's day-by-day rain chances for Wyomissing in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Wyomissing?
- Current conditions for Wyomissing and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Wyomissing forecast updated?
- The Wyomissing forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Wyomissing?
- Today's sunrise and sunset times for Wyomissing 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 Wyomissing?
- The next few days in Wyomissing's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Wyomissing's warm-summer humid continental climate in Pennsylvania pairs 29°F Januarys with 76°F Julys, 47°F apart across the seasons.
In a typical year Wyomissing records about 43 inches of precipitation on around 183 days.
The 47°F gap between Wyomissing's summer and winter, at 40.3°N, shapes Wyomissing's frost calendar.
ZIP codes in Wyomissing
- 19609
- 19610