Cedar Heights, Maryland Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Cedar Heights weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Drizzle32%—108°82°—
- SundayJul 5Heavy Rain49%0.74″98°76°-10°
- MondayJul 6Light Showers82%0.02″86°75°-12°
- TuesdayJul 7Showers82%0.01″80°72°-6°
- WednesdayJul 8Light Drizzle37%0.02″79°69°-1°
- ThursdayJul 9Overcast12%—95°69°+16°
- FridayJul 10Light Drizzle41%0.01″98°74°+3°
AQI 122 (Unhealthy for Sensitive Groups), driven by Ozone. AQI up 45 in the last 6 hours — air quality is degrading. Ozone at AQI 65. Overcast through the UV peak window (cloud cover ~67%) — afternoon ozone should stay flat.
CAUTION Sensitive groups (children, elderly, respiratory conditions) should limit prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 65. Overcast through the UV peak window (cloud cover ~67%) — afternoon ozone should stay flat.
- Present
- AQI 65
- UV peak
- 0.1 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 8
PM × Wind × Precip
PM2.5 at 12.2 µg/m³, PM10 at 12.9 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.95
- 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
- 11:24 PM
- Moonset
- 11:17 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Cedar Heights at a glance
- Today vs. normal: 13°F above the seasonal normal for this latitude
- Last frost: April 9 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Cedar Heights
- Sat108°77°32%
- Sun98°76°49%
- Mon86°75°82%
- Tue80°72°82%
- Wed79°69°37%
- Thu95°69°12%
- Fri98°74°41%
- Sat86°70°39%
- Sun80°70°22%
- Mon86°64°20%
- Tue92°65°18%
- Wed91°68°33%
- Thu91°68°37%
- Fri91°70°42%
- Sat91°72°44%
- Sun90°69°46%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 5, 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 — Cedar Heights
SPC has placed Cedar Heights in the Enhanced Risk category for severe thunderstorms today.
- TODAYENHEnhanced Risk
- TOMORROWSLGTSlight Risk
- DAY 3TSTMGeneral Thunderstorms
Numerous severe storms likely. Tornadoes, large hail, and damaging wind gusts possible across the area. Track NWS warnings if storms develop.
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 186 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
Cedar Heights peaks at about 78°F in July and bottoms near 32°F in January; August brings the heaviest rain (4.2 inches) and October the least (2.6 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 32° | 3.3″ | 13 |
| February | 35° | 2.8″ | 12 |
| March | 44° | 3.4″ | 15 |
| April | 55° | 3.7″ | 17 |
| May | 63° | 3.5″ | 18 |
| June | 72° | 3.9″ | 17 |
| July | 78° | 3.2″ | 17 |
| August | 77° | 4.2″ | 18 |
| September | 70° | 3.4″ | 14 |
| October | 59° | 2.6″ | 11 |
| November | 46° | 3.6″ | 12 |
| December | 37° | 3.9″ | 14 |
Regional context
By the nearest station's NOAA NCEI 1991-2020 normals, Cedar Heights sees 32°F Januarys and 78°F Julys, a 46°F range, plus around 41.5 inches of precipitation across 175 days.
No season owns Cedar Heights's rain: August reaches 4.2 inches across 17.8 days and October keeps 2.6 inches on 11.1, an even spread through Cedar Heights's year. That lines Cedar Heights up with places like Fairmount Heights, MD, Seat Pleasant, MD and Maryland Park, MD, fed by overlapping storm tracks.
Cedar Heights's growing window opens around mid-April, once Cedar Heights's overnight lows stop freezing — sow peas, lettuce, spinach, and radishes. Hold Cedar Heights's tender crops — tomatoes, peppers, basil — until 10-14 days past Cedar Heights's last frost. Cedar Heights's window closes around mid-November as overnight lows return below freezing. Within Cedar Heights, cold-air pooling chills low spots by 5-10°F, shifting Cedar Heights's local frost dates.
Similar climates: Fairmount Heights, MD, Seat Pleasant, MD, Maryland Park, MD, Peppermill Village, MD, Cheverly, MD.
Frequently asked
- When does it freeze in Cedar Heights?
- Frost typically leaves Cedar Heights by mid-April and returns to Cedar Heights near mid-November.
- What is the rainy season in Cedar Heights?
- August is the wettest month in Cedar Heights, about 4.2 inches on average; the year totals roughly 42 inches.
- What is the warmest month in Cedar Heights?
- The warmest stretch in Cedar Heights comes in July, around 78°F on average.
- What is the coldest month in Cedar Heights?
- On average January is the chilliest month in Cedar Heights, about 32°F.
- When can I start a vegetable garden in Cedar Heights?
- Cedar Heights's last frost (mid-April) cues hardy greens; in Cedar Heights, hold heat-lovers two weeks past.
- How many rainy days does Cedar Heights get?
- Cedar Heights averages about 175 days with measurable rain or snow each year.
- What hardiness zone is Cedar Heights?
- Cedar Heights's USDA zone comes from its January mean (32°F); enter the ZIP on the USDA lookup for the number.
- What is the 10-day forecast for Cedar Heights?
- Cedar Heights'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 Cedar Heights?
- See this week's day-by-day rain chances for Cedar Heights in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Cedar Heights?
- Current conditions for Cedar Heights and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Cedar Heights forecast updated?
- The Cedar Heights forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Cedar Heights?
- Today's sunrise and sunset times for Cedar Heights 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 Cedar Heights?
- The next few days in Cedar Heights's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Cedar Heights, Maryland occupies a warm-summer humid continental zone, with January means near 32°F and July around 78°F — a 46°F swing.
Rain and snow bring Cedar Heights roughly 42 inches a year across approximately 175 measurable-precipitation days.
Latitude 38.9°N gives Cedar Heights its 46°F swing, and with it the rhythm of Cedar Heights's growing season.
ZIP codes in Cedar Heights
- 20743