Big Rock, Virginia Weather
Cicadas claim the scorching afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Big Rock weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Showers27%0.21″93°74°—
- MondayJul 6Drizzle57%—85°71°-8°
- TuesdayJul 7Showers62%—88°70°+3°
- WednesdayJul 8Light Drizzle20%—89°66°+1°
- ThursdayJul 9Partly Cloudy31%—94°64°+5°
- FridayJul 10Thunderstorm68%0.33″89°69°-5°
- SaturdayJul 11Light Drizzle58%0.01″77°67°-12°
AQI 50 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 11.0 µg/m³ (AQI 55) with a 0.95 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.
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 31 now. With UV 3.3 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 10 around 1 PM.
- Present
- AQI 31
- UV peak
- 3.3 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 10
PM × Wind × Precip
PM2.5 at 11.0 µg/m³ (AQI 55) with a 0.95 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.95
- Wind
- calm
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
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
- 11:45 PM
- Moonset
- 11:40 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Big Rock at a glance
- Today vs. normal: 4°F above the seasonal normal for this latitude
- Last frost: March 31 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 24603
15-Day Forecast — Big Rock
- Sun93°74°27%
- Mon85°71°57%
- Tue88°70°62%
- Wed89°66°20%
- Thu94°64°31%
- Fri89°69°68%
- Sat77°67°58%
- Sun79°66°32%
- Mon90°60°18%
- Tue89°63°11%
- Wed82°63°22%
- Thu89°66°39%
- Fri82°66°36%
- Sat83°69°50%
- Sun86°70°65%
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 — Big Rock
SPC has placed Big Rock in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWMRGLMarginal Risk
- DAY 3TSTMGeneral Thunderstorms
Isolated severe storms possible. Limited threat for hail or damaging wind.
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 scorching afternoon
Dog-day cicadas emerge in waves, their rasp dominating every sunny hour; heat peaks above 90 degrees daily.
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
The year in Big Rock tops out in July (~73°F) and dips lowest in January (~34°F), with July wettest at 5.7 inches and November driest at 2.6 inches.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 34° | 3.3″ | 8 |
| February | 37° | 3.3″ | 7 |
| March | 44° | 4.0″ | 8 |
| April | 54° | 4.3″ | 9 |
| May | 62° | 4.8″ | 10 |
| June | 69° | 4.8″ | 9 |
| July | 73° | 5.7″ | 9 |
| August | 72° | 4.2″ | 8 |
| September | 67° | 3.2″ | 6 |
| October | 56° | 3.0″ | 6 |
| November | 44° | 2.6″ | 6 |
| December | 37° | 3.7″ | 8 |
Regional context
Big Rock's climate, from NOAA NCEI 1991-2020 station normals, pairs 34°F Januarys with 73°F Julys — a 39°F swing. About 46.9 inches of precipitation falls over roughly 94 days a year.
Rainfall in Big Rock stays even across the calendar: July tops out at 5.7 inches over 8.9 rainy days, and November still logs 2.6 inches across 6.1 — a narrow range for Big Rock. It is a balanced pattern Big Rock shares with places like Breaks, VA, Grundy, VA and Vansant, VA.
By mid-April the frosts ease in Big Rock, opening the season for peas, lettuce, spinach, and radishes. Warm-soil crops in Big Rock wait about two weeks past Big Rock's last frost, once the soil warms. Around mid-November, freezing nights resume in Big Rock and tender crops must come in. In Big Rock, low spots run 4-7°F colder than nearby slopes, nudging Big Rock's frost dates a week.
Similar climates: Breaks, VA, Grundy, VA, Vansant, VA, Haysi, VA, Clinchco, VA.
Frequently asked
- When does it freeze in Big Rock?
- Big Rock's last spring frost lands near mid-April, and in Big Rock the first fall frost follows around mid-November.
- What is the rainy season in Big Rock?
- Rainfall in Big Rock peaks in July near 5.7 inches, out of about 47 inches annually.
- What is the warmest month in Big Rock?
- July is Big Rock's warmest month, averaging about 73°F.
- What is the coldest month in Big Rock?
- Big Rock bottoms out in January, with a mean near 34°F.
- When can I start a vegetable garden in Big Rock?
- Big Rock's last frost (mid-April) cues hardy greens; in Big Rock, hold heat-lovers two weeks past.
- How many rainy days does Big Rock get?
- Expect roughly 94 wet days a year in Big Rock.
- What hardiness zone is Big Rock?
- Big Rock's hardiness zone tracks its winter low; with January near 34°F, check the USDA ZIP map for the exact zone.
- What is the 10-day forecast for Big Rock?
- Big Rock'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 Big Rock?
- See this week's day-by-day rain chances for Big Rock in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Big Rock?
- Current conditions for Big Rock and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Big Rock forecast updated?
- The Big Rock forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Big Rock?
- Today's sunrise and sunset times for Big Rock 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 Big Rock?
- The next few days in Big Rock's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Big Rock, Virginia occupies a humid subtropical zone, with January means near 34°F and July around 73°F — a 39°F swing.
Rain and snow bring Big Rock roughly 47 inches a year across approximately 94 measurable-precipitation days.
The 39°F gap between Big Rock's summer and winter, at 37.4°N, shapes Big Rock's frost calendar.
ZIP codes in Big Rock
- 24603