Hagerstown, Maryland Weather
Day 93 of summer. Read today’s microseason across nine climate regions →
Hagerstown weather forecast — hour by hour, 7-day outlook, NOAA radar
Conditions updated 10:25 AM EDT · Open-Meteo
- TodaySep 21Drizzle later44%0.06″71°62°—
- TuesdaySep 22Rain69%0.67″63°57°-8°
- WednesdaySep 23Drizzle69%0.32″60°50°-3°
- ThursdaySep 24Overcast16%—65°44°+5°
- FridaySep 25Clear10%—69°44°+4°
- SaturdaySep 26Clear11%—72°46°+3°
- SundaySep 27Overcast——74°49°+2°
Air quality now AQI 25 · Good
AQI 25 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 5.0 µg/m³, PM10 at 5.1 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 during the projected peak around 7 PM.
What's driving it
PM × Wind × Precip
PM2.5 at 5.0 µg/m³, PM10 at 5.1 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.98
- 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).
September dries up ditches or breaks down bridges.
- Moonrise
- 4:42 PM
- Moonset
- 1:31 AM
- In sign
- ♑︎ Capricorn
Hagerstown at a glance
- Today vs. normal: Today averages 67°F (high 71°F, low 62°F), about the 66°F normal for Sep 21
- Last frost: April 11 (1991–2020 median, NOAA station 2 km away)
- Microseason: Sep 21–25
- Planting calendar: September — plant garlic (overwinter); harvest tomatoes, peppers, beans, summer squash, winter squash
16-Day Forecast — Hagerstown
- Mon71°62°44%
- Tue63°57°69%
- Wed60°50°69%
- Thu65°44°16%
- Fri69°44°10%
- Sat72°46°11%
- Sun74°49°4%
- Mon77°53°5%
- Tue78°57°8%
- Wed78°57°23%
- Thu80°59°18%
- Fri76°54°18%
- Sat78°54°23%
- Sun73°60°17%
- Mon71°49°23%
- Tue62°42°19%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Hagerstown
Interactive wind and temperature map centered on Hagerstown — it loads in your browser. Open the full weather map.
Right now in the garden
Fall planting + final harvests
As of September 21, the season's first frost (typically October 28) is approaching. Pick what frost-tender plants still carry before the next cold front. This city's planting calendar for September: plant garlic (overwinter); harvest tomatoes, peppers, beans, summer squash, and winter squash.
SPC Convective Outlook
Storm Prediction Center — Hagerstown
SPC includes Hagerstown in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWNONENo severe risk
- 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.
Sun & seasons in Hagerstown
Hagerstown sits in Washington County, where the year’s longest day runs 14h 59m of daylight and its shortest just 9h 22m — a swing of +5h 37m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.
Baltimore, the state’s largest city, lies about 63 miles to the ESE. The nearest town Hagerstown tracks is Keedysville, roughly 11 miles to the S.
Air quality in Hagerstown
Air quality in Hagerstown’s county has held roughly steady since 2020; its cleanest year on record was 2020 (median AQI 40). See the full air-quality history for Hagerstown.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| March | lettuce, peas, spinach, radishes | — |
| April | lettuce, peas, spinach, radishes | spinach, radishes |
| May | tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, spinach, summer squash |
| July | tomatoes, peppers, beans, squash | tomatoes, peppers, beans, summer squash, garlic |
| August | beans, squash, fall brassicas, carrots | tomatoes, peppers, beans, summer squash, winter squash |
| September | garlic (overwinter) | tomatoes, peppers, beans, summer squash, winter squash |
| October | garlic (overwinter) | tomatoes, peppers, beans, summer squash, winter squash, fall brassicas, carrots |
| November | — | fall brassicas, carrots |
A year in weather
The year in Hagerstown 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
Similar climates Funkstown, MD, Halfway, MD, Paramount-Long Meadow, MD
Per NOAA NCEI 1991-2020 normals, Hagerstown runs from a 33°F January mean to 78°F in July, a 45°F seasonal spread, with near 35.6 inches of precipitation across about 71 wet days.
No season owns Hagerstown's rain: September reaches 3.8 inches across 6.2 days and February keeps 2.0 inches on 4.9, an even spread through Hagerstown's year. It is a balanced pattern Hagerstown shares with places like Funkstown, MD, Halfway, MD and Paramount-Long Meadow, MD.
Hagerstown reaches its last hard frost near April 11; that is the cue for peas, lettuce, spinach, and radishes. Tomatoes and peppers do best set out two weeks later in Hagerstown, once nights clear the mid-40s°F. By October 28, frost is back in Hagerstown — protect or harvest anything tender. Open lawns in Hagerstown whiten first when frost returns.
Similar climates: Funkstown, MD, Halfway, MD, Paramount-Long Meadow, MD, Robinwood, MD, Fountainhead-Orchard Hills, MD.
Frequently asked
- When does it freeze in Hagerstown?
- In Hagerstown, expect the last spring frost near April 11; Hagerstown's first autumn frost comes around October 28.
- What is the rainy season in Hagerstown?
- Rainfall in Hagerstown peaks in September near 3.8 inches, out of about 36 inches annually.
- What is the warmest month in Hagerstown?
- Hagerstown peaks in July, when the mean runs near 78°F.
- What is the coldest month in Hagerstown?
- January is Hagerstown's coldest month, averaging about 33°F.
- When can I start a vegetable garden in Hagerstown?
- Around April 11, start frost-hardy crops in Hagerstown; tomatoes and basil belong a fortnight later.
- How many rainy days does Hagerstown get?
- Hagerstown records around 71 days of measurable precipitation annually.
- What hardiness zone is Hagerstown?
- With January around 33°F, Hagerstown's zone reflects that minimum — the USDA ZIP map confirms Hagerstown's band.
- What is the 10-day forecast for Hagerstown?
- Hagerstown'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 Hagerstown?
- See this week's day-by-day rain chances for Hagerstown in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Hagerstown?
- Current conditions for Hagerstown and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Hagerstown forecast updated?
- The Hagerstown forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Hagerstown?
- Today's sunrise and sunset times for Hagerstown 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 Hagerstown?
- The next few days in Hagerstown's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Hagerstown sits at 39.6°N; its climate zone is warm-summer humid continental (Köppen approximation).
ZIP codes in Hagerstown
- 21740
- 21741
- 21742
- 21746
- 21747
- 21749