Rossville, Maryland Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Rossville weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Rain23%0.09″101°79°—
- SundayJul 5Overcast54%—94°76°-7°
- MondayJul 6Drizzle84%—83°74°-11°
- TuesdayJul 7Thunderstorm80%0.01″87°72°+4°
- WednesdayJul 8Showers34%0.25″79°68°-8°
- ThursdayJul 9Overcast12%—91°70°+12°
- FridayJul 10Light Drizzle43%0.01″93°75°+2°
AQI 182 (Unhealthy), driven by Ozone. AQI up 117 in the last 6 hours — air quality is degrading. Ozone at AQI 117. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
LIMIT OUTDOORS Limit prolonged outdoor exertion. Sensitive groups should avoid outdoor exertion. Consider rescheduling outdoor activities until AQI improves.
What's driving it
Ozone × UV × Sky
Ozone at AQI 117. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
- Present
- AQI 117
- UV peak
- 0.2 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 14
PM × Wind × Precip
PM scrubbed by 2 hours of recent rain — PM2.5 down to 9.1 µg/m³, PM10 to 9.5 µg/m³.
- PM2.5/PM10
- 0.96
- Wind
- breezy
- Recent rain
- 2h in last 6h
- Pattern
- washed out
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
- 10:58 PM
- Moonset
- 10:10 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Rossville at a glance
- Today vs. normal: 23°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.
16-Day Forecast — Rossville
- Sat101°79°23%
- Sun94°76°54%
- Mon83°74°84%
- Tue87°72°80%
- Wed79°68°34%
- Thu91°70°12%
- Fri93°75°43%
- Sat91°73°35%
- Sun83°71°25%
- Mon78°70°17%
- Tue88°67°17%
- Wed90°70°37%
- Thu93°74°45%
- Fri93°75°46%
- Sat92°73°40%
- Sun92°75°46%
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 — Rossville
SPC has placed Rossville 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 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
In Rossville, July runs warmest near 78°F and January coldest around 32°F, while December is the wettest month (4.5 inches) and October the driest (3.1 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 32° | 3.8″ | 14 |
| February | 35° | 3.2″ | 14 |
| March | 43° | 3.8″ | 16 |
| April | 54° | 4.0″ | 17 |
| May | 62° | 3.8″ | 17 |
| June | 72° | 4.0″ | 17 |
| July | 78° | 3.2″ | 16 |
| August | 76° | 4.4″ | 17 |
| September | 70° | 3.9″ | 14 |
| October | 59° | 3.1″ | 12 |
| November | 46° | 4.0″ | 14 |
| December | 37° | 4.5″ | 15 |
Regional context
Drawing on NOAA NCEI 1991-2020 normals, Rossville's January averages 32°F and July 78°F — 46°F apart — while precipitation totals roughly 45.6 inches over some 184 days.
Rossville's precipitation spreads evenly: December peaks at 4.5 inches on 14.9 wet days, while October holds 3.1 inches over 11.9 — no month dominates Rossville's rain calendar. That even rhythm groups Rossville with places like White Marsh, MD, Overlea, MD and Rosedale, MD.
By mid-April the frosts ease in Rossville, opening the season for peas, lettuce, spinach, and radishes. Warm-soil crops in Rossville wait about two weeks past Rossville's last frost, once the soil warms. It shuts near mid-November, when freezes return to Rossville and tender plants need cover. Within Rossville, cold-air pooling chills low spots by 5-10°F, shifting Rossville's local frost dates.
Similar climates: White Marsh, MD, Overlea, MD, Rosedale, MD, Middle River, MD, Perry Hall, MD.
Frequently asked
- When does it freeze in Rossville?
- In Rossville, expect the last spring frost near mid-April; Rossville's first autumn frost comes around mid-November.
- What is the rainy season in Rossville?
- December is the wettest month in Rossville, about 4.5 inches on average; the year totals roughly 46 inches.
- What is the warmest month in Rossville?
- The warmest stretch in Rossville comes in July, around 78°F on average.
- What is the coldest month in Rossville?
- On average January is the chilliest month in Rossville, about 32°F.
- When can I start a vegetable garden in Rossville?
- Rossville's last frost (mid-April) cues hardy greens; in Rossville, hold heat-lovers two weeks past.
- How many rainy days does Rossville get?
- Rossville records around 184 days of measurable precipitation annually.
- What hardiness zone is Rossville?
- Rossville sits in the USDA zone set by January lows near 32°F; the USDA ZIP tool gives the band.
- What is the 10-day forecast for Rossville?
- Rossville'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 Rossville?
- See this week's day-by-day rain chances for Rossville in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Rossville?
- Current conditions for Rossville and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Rossville forecast updated?
- The Rossville forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Rossville?
- Today's sunrise and sunset times for Rossville 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 Rossville?
- The next few days in Rossville's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Rossville, Maryland occupies a warm-summer humid continental zone, with January means near 32°F and July around 78°F — a 46°F swing.
Across the year, Rossville collects about 46 inches of precipitation over roughly 184 days with measurable rain or snow.
Latitude 39.4°N gives Rossville its 46°F swing, and with it the rhythm of Rossville's growing season.
ZIP codes in Rossville
- 21237
- 21236