Forest Lake, Pennsylvania Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Forest Lake weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Rain56%0.36″89°68°—
- SundayJul 5Drizzle75%0.04″83°64°-6°
- MondayJul 6Light Rain82%0.25″69°59°-14°
- TuesdayJul 7Light Drizzle48%0.01″77°57°+8°
- WednesdayJul 8Overcast13%—82°55°+5°
- ThursdayJul 9Drizzle38%—86°61°+4°
- FridayJul 10Light Drizzle38%—78°64°-8°
AQI 39 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 43 now. With UV 4.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 27 around 1 PM.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 6 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 43 now. With UV 4.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 27 around 1 PM.
- Present
- AQI 43
- UV peak
- 4.7 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 27
PM × Wind × Precip
PM2.5 at 4.5 µg/m³, PM10 at 4.8 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.94
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- background
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
- 11:00 PM
- Moonset
- 10:05 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Forest Lake at a glance
- Today vs. normal: 6°F above the seasonal normal for this latitude
- Last frost: April 27 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Forest Lake
- Sat89°68°56%
- Sun83°64°75%
- Mon69°59°82%
- Tue77°57°48%
- Wed82°55°13%
- Thu86°61°38%
- Fri78°64°38%
- Sat83°63°27%
- Sun66°60°33%
- Mon65°60°25%
- Tue74°59°31%
- Wed85°59°32%
- Thu89°65°27%
- Fri86°66°39%
- Sat78°65°46%
- Sun82°59°29%
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 — Forest Lake
SPC has placed Forest Lake 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.
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
Forest Lake's warmest month is July (~72°F mean) and its coldest is January (~24°F). Rainfall peaks in May (4.0 inches) and bottoms out in February (2.6 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 24° | 2.9″ | 23 |
| February | 26° | 2.6″ | 19 |
| March | 35° | 3.4″ | 21 |
| April | 47° | 3.9″ | 20 |
| May | 57° | 4.0″ | 21 |
| June | 66° | 3.7″ | 20 |
| July | 72° | 3.6″ | 19 |
| August | 71° | 3.6″ | 18 |
| September | 64° | 3.6″ | 15 |
| October | 53° | 3.4″ | 15 |
| November | 39° | 3.8″ | 20 |
| December | 29° | 3.4″ | 22 |
Frequently asked
- When does it freeze in Forest Lake?
- Frost typically leaves Forest Lake by mid-April and returns to Forest Lake near mid-November.
- What is the rainy season in Forest Lake?
- Rainfall in Forest Lake peaks in May near 4.0 inches, out of about 42 inches annually.
- What is the warmest month in Forest Lake?
- Forest Lake peaks in July, when the mean runs near 72°F.
- What is the coldest month in Forest Lake?
- January is Forest Lake's coldest month, averaging about 24°F.
- When can I start a vegetable garden in Forest Lake?
- Hardy spring crops go in near mid-April in Forest Lake; tender peppers and squash wait 10–14 days.
- How many rainy days does Forest Lake get?
- Forest Lake records around 232 days of measurable precipitation annually.
- What hardiness zone is Forest Lake?
- Because Forest Lake bottoms near 24°F in January, that winter low sets Forest Lake's USDA zone — verify by ZIP.
- What is the 10-day forecast for Forest Lake?
- Forest Lake'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 Forest Lake?
- See this week's day-by-day rain chances for Forest Lake in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Forest Lake?
- Current conditions for Forest Lake and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Forest Lake forecast updated?
- The Forest Lake forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Forest Lake?
- Today's sunrise and sunset times for Forest Lake 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 Forest Lake?
- The next few days in Forest Lake's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Set in a warm-summer humid continental zone, Forest Lake, Pennsylvania swings from 24°F in the heart of winter to 72°F at midsummer — a 48°F arc.
In a typical year Forest Lake records about 42 inches of precipitation on around 232 days.
Forest Lake's 48°F range, set by its 41.9°N position, drives frost timing and what thrives in Forest Lake.
ZIP codes in Forest Lake
- 18801