Fountainhead-Orchard Hills, Maryland Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Fountainhead-Orchard Hills weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast48%—96°74°—
- SundayJul 5Drizzle35%0.03″93°74°-3°
- MondayJul 6Thunderstorm78%—81°70°-12°
- TuesdayJul 7Heavy Showers78%2.0″86°64°+5°
- WednesdayJul 8Light Drizzle20%0.02″77°64°-9°
- ThursdayJul 9Overcast11%—91°64°+14°
- FridayJul 10Light Drizzle45%—85°67°-6°
AQI 93 (Moderate), driven by Ozone. AQI up 42 in the last 6 hours — air quality is degrading. Ozone at AQI 80 now. With UV 0.4 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 14 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 80 now. With UV 0.4 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 14 around 1 PM.
- Present
- AQI 80
- UV peak
- 0.4 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 14
PM × Wind × Precip
PM2.5 at 7.6 µg/m³, PM10 at 8.2 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.93
- Wind
- breezy
- 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
- 11:04 PM
- Moonset
- 10:14 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Fountainhead-Orchard Hills at a glance
- Today vs. normal: 17°F above the seasonal normal for this latitude
- Last frost: April 14 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Fountainhead-Orchard Hills
- Sat96°74°48%
- Sun93°74°35%
- Mon81°70°78%
- Tue86°64°78%
- Wed77°64°20%
- Thu91°64°11%
- Fri85°67°45%
- Sat88°67°29%
- Sun79°63°21%
- Mon81°62°17%
- Tue83°59°17%
- Wed89°60°40%
- Thu90°62°42%
- Fri86°66°38%
- Sat91°67°34%
- Sun84°69°44%
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 — Fountainhead-Orchard Hills
SPC has placed Fountainhead-Orchard Hills 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 Fountainhead-Orchard Hills tops out in July (~78°F) and dips lowest in January (~33°F), with September wettest at 3.8 inches and February driest at 2.0 inches.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 33° | 2.5″ | 5 |
| February | 36° | 2.0″ | 5 |
| March | 43° | 3.0″ | 6 |
| April | 55° | 3.3″ | 7 |
| May | 64° | 3.5″ | 8 |
| June | 73° | 3.4″ | 7 |
| July | 78° | 2.9″ | 6 |
| August | 75° | 2.9″ | 6 |
| September | 68° | 3.8″ | 6 |
| October | 57° | 2.8″ | 5 |
| November | 46° | 2.6″ | 5 |
| December | 37° | 2.8″ | 5 |
Regional context
In Fountainhead-Orchard Hills, NOAA NCEI 1991-2020 normals put January near 33°F and July near 78°F — a 45°F seasonal arc — with about 35.6 inches of precipitation over 71 rainy or snowy days.
Fountainhead-Orchard Hills's precipitation spreads evenly: September peaks at 3.8 inches on 6.2 wet days, while February holds 2.0 inches over 4.9 — no month dominates Fountainhead-Orchard Hills's rain calendar. It is a balanced pattern Fountainhead-Orchard Hills shares with places like Paramount-Long Meadow, MD, Maugansville, MD and Middleburg, MD.
Fountainhead-Orchard Hills reaches its last hard frost near mid-April; that is the cue for peas, lettuce, spinach, and radishes. Fountainhead-Orchard Hills's heat-lovers — tomatoes, peppers, squash — hold off until Fountainhead-Orchard Hills's frost risk clears, 10-14 days on. By mid-November, frost is back in Fountainhead-Orchard Hills — protect or harvest anything tender. Fountainhead-Orchard Hills's low ground holds frost later into spring than Fountainhead-Orchard Hills's benches, which run 3-5 days ahead.
Similar climates: Paramount-Long Meadow, MD, Maugansville, MD, Middleburg, MD, Reid, MD, Cearfoss, MD.
Frequently asked
- When does it freeze in Fountainhead-Orchard Hills?
- In Fountainhead-Orchard Hills, expect the last spring frost near mid-April; Fountainhead-Orchard Hills's first autumn frost comes around mid-November.
- What is the rainy season in Fountainhead-Orchard Hills?
- Fountainhead-Orchard Hills sees its heaviest rain in September (around 3.8 inches), part of roughly 36 inches a year.
- What is the warmest month in Fountainhead-Orchard Hills?
- Fountainhead-Orchard Hills peaks in July, when the mean runs near 78°F.
- What is the coldest month in Fountainhead-Orchard Hills?
- January is Fountainhead-Orchard Hills's coldest month, averaging about 33°F.
- When can I start a vegetable garden in Fountainhead-Orchard Hills?
- Hardy spring crops go in near mid-April in Fountainhead-Orchard Hills; tender peppers and squash wait 10–14 days.
- How many rainy days does Fountainhead-Orchard Hills get?
- Fountainhead-Orchard Hills averages about 71 days with measurable rain or snow each year.
- What hardiness zone is Fountainhead-Orchard Hills?
- With January around 33°F, Fountainhead-Orchard Hills's zone reflects that minimum — the USDA ZIP map confirms Fountainhead-Orchard Hills's band.
- What is the 10-day forecast for Fountainhead-Orchard Hills?
- Fountainhead-Orchard Hills'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 Fountainhead-Orchard Hills?
- See this week's day-by-day rain chances for Fountainhead-Orchard Hills in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Fountainhead-Orchard Hills?
- Current conditions for Fountainhead-Orchard Hills and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Fountainhead-Orchard Hills forecast updated?
- The Fountainhead-Orchard Hills forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Fountainhead-Orchard Hills?
- Today's sunrise and sunset times for Fountainhead-Orchard Hills 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 Fountainhead-Orchard Hills?
- The next few days in Fountainhead-Orchard Hills'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, Fountainhead-Orchard Hills, Maryland swings from 33°F in the heart of winter to 78°F at midsummer — a 45°F arc.
Yearly precipitation in Fountainhead-Orchard Hills totals around 36 inches, spread over about 71 days of rain or snow.
Fountainhead-Orchard Hills's 45°F range, set by its 39.7°N position, drives frost timing and what thrives in Fountainhead-Orchard Hills.
ZIP codes in Fountainhead-Orchard Hills
- 21742