Guys Mills, Pennsylvania Weather
Honeysuckle sweetens the night. Day 90 of spring. Read this microseason across nine climate regions →
Guys Mills weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 17Overcast60%—74°54°—
- ThursdayJun 18Light Rain54%0.08″73°55°-1°
- FridayJun 19Light Drizzle13%—68°50°-5°
- SaturdayJun 20Light Drizzle——67°47°-1°
- SundayJun 21Showers44%0.76″62°51°-5°
- MondayJun 22Partly Cloudy53%—66°45°+4°
- TuesdayJun 23Partly Cloudy22%—72°48°+6°
AQI 34 (Good), driven by PM2.5. AQI down 6 over the last 6 hours (gradual decline). PM2.5 at 7.8 µg/m³ (AQI 43) with a 0.96 fine-to-coarse ratio and 6 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 33 now. With UV 3.3 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 10 around 1 PM.
- Present
- AQI 33
- UV peak
- 3.3 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 10
PM × Wind × Precip
PM2.5 at 7.8 µg/m³ (AQI 43) with a 0.96 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.96
- 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).








































A summer fog for fair, a winter fog for rain.
- Moonrise
- 8:12 AM
- Moonset
- 11:03 PM
- In sign
- ♋︎ Cancer
Honeysuckle sweetens the night
Guys Mills at a glance
- Today vs. normal: 16°F below the seasonal normal for this latitude
- Last frost: April 26 (climatological average for this latitude)
- Microseason: Jun 16–20
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
15-Day Forecast — Guys Mills
- Wed74°54°60%
- Thu73°55°54%
- Fri68°50°13%
- Sat67°47°7%
- Sun62°51°44%
- Mon66°45°53%
- Tue72°48°22%
- Wed75°51°15%
- Thu79°51°29%
- Fri84°58°18%
- Sat82°65°23%
- Sun75°67°29%
- Mon86°66°48%
- Tue72°67°48%
- Wed70°66°46%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 17, 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 — Guys Mills
SPC has placed Guys Mills in the General Thunderstorms category for severe thunderstorms today.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe risk
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
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 · June 16–20
Honeysuckle sweetens the night
Japanese honeysuckle perfumes parks after dark.
Day 168 of 365 · Wedge 34 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
Guys Mills's warmest month is July (~71°F mean) and its coldest is January (~25°F). Rainfall peaks in July (4.9 inches) and bottoms out in February (2.0 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 25° | 2.5″ | 6 |
| February | 27° | 2.0″ | 6 |
| March | 35° | 2.9″ | 7 |
| April | 47° | 3.8″ | 9 |
| May | 58° | 3.7″ | 8 |
| June | 66° | 4.4″ | 8 |
| July | 71° | 4.9″ | 8 |
| August | 69° | 3.7″ | 7 |
| September | 62° | 4.2″ | 7 |
| October | 51° | 3.7″ | 9 |
| November | 40° | 3.0″ | 7 |
| December | 31° | 2.6″ | 7 |
Regional context
Drawing on NOAA NCEI 1991-2020 normals, Guys Mills's January averages 25°F and July 71°F — 45°F apart — while precipitation totals roughly 41.4 inches over some 89 days.
Summer convection drives Guys Mills's precipitation: July logs 4.9 inches on 7.9 rainy days, against February's 2.0 inches on 5.7 — warm-season storms carry Guys Mills's moisture. That summer-storm rhythm groups Guys Mills with places like Blooming Valley, PA, Townville, PA and Cochranton, PA.
Guys Mills's growing window opens around mid-April, once Guys Mills's overnight lows stop freezing — sow kale, peas, spinach, and parsnips. Hold Guys Mills's tender crops — tomatoes, peppers, basil — until 10-14 days past Guys Mills's last frost. It shuts near mid-November, when freezes return to Guys Mills and tender plants need cover. In Guys Mills, low spots run 4-7°F colder than nearby slopes, nudging Guys Mills's frost dates a week.
Similar climates: Blooming Valley, PA, Townville, PA, Cochranton, PA, Meadville, PA, Rockdale Acres, PA.
Frequently asked
- When does it freeze in Guys Mills?
- In Guys Mills, expect the last spring frost near mid-April; Guys Mills's first autumn frost comes around mid-November.
- What is the rainy season in Guys Mills?
- July is the wettest month in Guys Mills, about 4.9 inches on average; the year totals roughly 41 inches.
- What is the warmest month in Guys Mills?
- The warmest stretch in Guys Mills comes in July, around 71°F on average.
- What is the coldest month in Guys Mills?
- On average January is the chilliest month in Guys Mills, about 25°F.
- When can I start a vegetable garden in Guys Mills?
- Time tomatoes in Guys Mills for two weeks after mid-April; peas and greens start at Guys Mills's frost line.
- How many rainy days does Guys Mills get?
- Expect roughly 89 wet days a year in Guys Mills.
- What hardiness zone is Guys Mills?
- Guys Mills's USDA zone comes from its January mean (25°F); enter the ZIP on the USDA lookup for the number.
- What is the 10-day forecast for Guys Mills?
- Guys Mills'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 Guys Mills?
- See this week's day-by-day rain chances for Guys Mills in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Guys Mills?
- Current conditions for Guys Mills and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Guys Mills forecast updated?
- The Guys Mills forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Guys Mills?
- Day length in Guys Mills peaks around the June solstice — earliest sunrise and latest sunset — and is shortest near the December solstice.
- How accurate is the weather forecast for Guys Mills?
- The next few days in Guys Mills's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Guys Mills, Pennsylvania occupies a warm-summer humid continental zone, with January means near 25°F and July around 71°F — a 46°F swing.
Guys Mills sees close to 41 inches of precipitation annually, falling across some 89 wet days.
Latitude 41.6°N gives Guys Mills its 46°F swing, and with it the rhythm of Guys Mills's growing season.
ZIP codes in Guys Mills
- 16327