Sykesville, Maryland Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Sykesville weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Showers41%0.06″99°77°—
- SundayJul 5Overcast45%—94°73°-5°
- MondayJul 6Heavy Showers82%0.41″85°71°-9°
- TuesdayJul 7Light Showers82%0.07″73°68°-12°
- WednesdayJul 8Light Drizzle35%—75°64°+2°
- ThursdayJul 9Light Drizzle12%—91°66°+16°
- FridayJul 10Overcast42%—93°71°+2°
AQI 96 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±4 points). PM2.5 at 13.0 µg/m³, PM10 at 13.5 µg/m³ — typical background levels with no transport signature.
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 49 now. With UV 0.0 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 8 around 1 PM.
- Present
- AQI 49
- UV peak
- 0.0 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 8
PM × Wind × Precip
PM2.5 at 13.0 µg/m³, PM10 at 13.5 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.96
- Wind
- light
- Recent rain
- 1h 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
- 11:25 PM
- Moonset
- 11:17 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Sykesville at a glance
- Today vs. normal: 6°F above the seasonal normal for this latitude
- Last frost: April 12 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 21784
16-Day Forecast — Sykesville
- Sat99°77°41%
- Sun94°73°45%
- Mon85°71°82%
- Tue73°68°82%
- Wed75°64°35%
- Thu91°66°12%
- Fri93°71°42%
- Sat83°66°32%
- Sun79°64°25%
- Mon84°58°20%
- Tue88°60°16%
- Wed86°63°35%
- Thu87°61°46%
- Fri88°66°46%
- Sat86°70°40%
- Sun85°68°52%
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 — Sykesville
SPC has placed Sykesville 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
July is Sykesville's warmest stretch (~75°F) and January its coldest (~32°F); precipitation crests in September at 4.8 inches and ebbs in February to 3.0 inches.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 32° | 3.4″ | 6 |
| February | 34° | 3.0″ | 6 |
| March | 42° | 4.0″ | 7 |
| April | 53° | 3.6″ | 7 |
| May | 63° | 4.3″ | 8 |
| June | 71° | 4.7″ | 8 |
| July | 75° | 4.5″ | 7 |
| August | 74° | 4.2″ | 7 |
| September | 67° | 4.8″ | 7 |
| October | 56° | 4.0″ | 6 |
| November | 45° | 3.5″ | 6 |
| December | 37° | 3.9″ | 7 |
Regional context
Sykesville's climate, from NOAA NCEI 1991-2020 station normals, pairs 32°F Januarys with 75°F Julys — a 43°F swing. About 47.9 inches of precipitation falls over roughly 80 days a year.
Rainfall in Sykesville stays even across the calendar: September tops out at 4.8 inches over 6.6 rainy days, and February still logs 3.0 inches across 6.1 — a narrow range for Sykesville. That even rhythm groups Sykesville with places like Eldersburg, MD, Lisbon, MD and Randallstown, MD.
The cool-season window in Sykesville starts at mid-April, when nights stop freezing — think peas, lettuce, spinach, and radishes. In Sykesville, warm-season transplants — tomatoes, peppers, basil — wait two weeks past Sykesville's frost date. It shuts near mid-November, when freezes return to Sykesville and tender plants need cover. Within Sykesville, cold-air pooling chills low spots by 5-10°F, shifting Sykesville's local frost dates.
Similar climates: Eldersburg, MD, Lisbon, MD, Randallstown, MD, Mount Airy, MD, Ellicott City, MD.
Frequently asked
- When does it freeze in Sykesville?
- Sykesville's last spring frost lands near mid-April, and in Sykesville the first fall frost follows around mid-November.
- What is the rainy season in Sykesville?
- September is the wettest month in Sykesville, about 4.8 inches on average; the year totals roughly 48 inches.
- What is the warmest month in Sykesville?
- July is Sykesville's warmest month, averaging about 75°F.
- What is the coldest month in Sykesville?
- Sykesville bottoms out in January, with a mean near 32°F.
- When can I start a vegetable garden in Sykesville?
- Time tomatoes in Sykesville for two weeks after mid-April; peas and greens start at Sykesville's frost line.
- How many rainy days does Sykesville get?
- Sykesville records around 80 days of measurable precipitation annually.
- What hardiness zone is Sykesville?
- Sykesville's hardiness zone tracks its winter low; with January near 32°F, check the USDA ZIP map for the exact zone.
- What is the 10-day forecast for Sykesville?
- Sykesville'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 Sykesville?
- See this week's day-by-day rain chances for Sykesville in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Sykesville?
- Current conditions for Sykesville and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Sykesville forecast updated?
- The Sykesville forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Sykesville?
- Today's sunrise and sunset times for Sykesville 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 Sykesville?
- The next few days in Sykesville's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Sykesville's warm-summer humid continental climate in Maryland pairs 32°F Januarys with 75°F Julys, 43°F apart across the seasons.
Across the year, Sykesville collects about 48 inches of precipitation over roughly 80 days with measurable rain or snow.
At 39.4°N, Sykesville's 43°F summer-to-winter swing sets when Sykesville's gardens wake and when frost returns.
ZIP codes in Sykesville
- 21784