Graysville, Alabama Weather
Thunder quiets the land. Day 93 of summer. Read this microseason across nine climate regions →
Graysville weather forecast — hour by hour, 7-day outlook, NOAA radar
Conditions updated 1:40 AM CDT · Open-Meteo
- TodaySep 21Rain later12%0.20″93°73°—
- TuesdaySep 22Overcast36%0.11″93°72°0°
- WednesdaySep 23Light Drizzle12%—90°69°-3°
- ThursdaySep 24Overcast——82°68°-8°
- FridaySep 25Overcast——83°61°+1°
- SaturdaySep 26Overcast——84°63°+1°
- SundaySep 27Overcast——85°58°+1°
Air quality now AQI 63 · Moderate
AQI 63 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 25.3 µg/m³ (AQI 81) with a 0.98 fine-to-coarse ratio and 1 mph wind — combustion smoke trapped in stagnant 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
PM × Wind × Precip
PM2.5 at 25.3 µg/m³ (AQI 81) with a 0.98 fine-to-coarse ratio and 1 mph wind — combustion smoke trapped in stagnant air, not road dust.
- PM2.5/PM10
- 0.98
- 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).
September dries up ditches or breaks down bridges.
- Moonrise
- 4:03 PM
- Moonset
- 1:27 AM
- In sign
- ♑︎ Capricorn
Thunder quiets the land
Read this microseason across nine climate regions →
All 72 microseasons on the year wheel →
Graysville at a glance
- Today vs. normal: Today averages 83°F (high 93°F, low 73°F), 10°F above the 73°F normal for Sep 21
- Last frost: March 21 (1991–2020 median, NOAA station 23 km away)
- Microseason: Sep 21–25
- Planting calendar: September — harvest tomatoes, peppers, beans, summer squash, winter squash
15-Day Forecast — Graysville
- Mon93°73°12%
- Tue93°72°36%
- Wed90°69°12%
- Thu82°68°8%
- Fri83°61°1%
- Sat84°63°1%
- Sun85°58°4%
- Mon81°60°4%
- Tue87°61°21%
- Wed88°65°27%
- Thu87°63°15%
- Fri90°58°15%
- Sat89°68°23%
- Sun88°68°19%
- Mon89°66°14%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Late season
As of September 21, the first frost (around November 11) is about 7 weeks away. Frost-tender plants keep producing until then. This city's planting calendar for September: harvest tomatoes, peppers, beans, summer squash, and winter squash.
SPC Convective Outlook
Storm Prediction Center — Graysville
SPC has placed Graysville in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWMRGLMarginal Risk
- DAY 3MRGLMarginal Risk
Isolated severe storms possible. Limited threat for hail or damaging wind.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook.
Sun & seasons in Graysville
Graysville sits in Jefferson County, where the year’s longest day runs 14h 23m of daylight and its shortest just 9h 55m — a swing of +4h 29m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.
Birmingham, the state’s largest city, lies about 13 miles to the SE. The nearest town Graysville tracks is Birmingham, roughly 13 miles to the SE.
Air quality in Graysville
Air quality in Graysville’s county has trended dirtier since 2020; its cleanest year on record was 2025 (median AQI 52).
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| February | lettuce, peas, spinach, radishes | — |
| March | lettuce, peas, spinach, radishes | radishes |
| April | tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes |
| May | tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes, summer squash |
| June | beans, squash | tomatoes, peppers, beans, summer squash, garlic |
| July | tomatoes, peppers, beans, squash | tomatoes, peppers, beans, summer squash, winter squash |
| August | tomatoes, peppers, beans, squash, fall brassicas, carrots | tomatoes, peppers, beans, summer squash, winter squash |
| September | — | tomatoes, peppers, beans, summer squash, winter squash |
| October | garlic (overwinter) | tomatoes, peppers, beans, summer squash, winter squash |
| November | — | tomatoes, peppers, beans, summer squash, winter squash, fall brassicas, carrots |
| December | — | fall brassicas, carrots |
A year in weather
In Graysville, July runs warmest near 82°F and January coldest around 45°F, while March is the wettest month (5.7 inches) and October the driest (3.3 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 45° | 5.0″ | 11 |
| February | 49° | 5.0″ | 11 |
| March | 56° | 5.7″ | 11 |
| April | 64° | 5.1″ | 9 |
| May | 72° | 4.9″ | 10 |
| June | 78° | 4.8″ | 11 |
| July | 82° | 5.4″ | 12 |
| August | 81° | 4.3″ | 11 |
| September | 76° | 4.0″ | 7 |
| October | 65° | 3.3″ | 7 |
| November | 54° | 4.2″ | 8 |
| December | 47° | 4.9″ | 10 |
Regional context
Similar climates Cardiff, AL, Adamsville, AL, Brookside, AL
Graysville swings from 45°F in January to 82°F in July (37°F) per NOAA NCEI 1991-2020 normals; precipitation in Graysville runs about 56.6 inches on roughly 118 measurable days.
No season owns Graysville's rain: March reaches 5.7 inches across 11.2 days and October keeps 3.3 inches on 7.1, an even spread through Graysville's year. That lines Graysville up with places like Cardiff, AL, Adamsville, AL and Brookside, AL, fed by overlapping storm tracks.
Around March 21, Graysville sheds its freezing nights — peas, lettuce, spinach, and radishes go into Graysville's beds. Graysville's heat-lovers — tomatoes, peppers, squash — hold off until Graysville's frost risk clears, 10-14 days on. The season ends by November 11 in Graysville, once hard frosts set back in. That date is a median: Graysville freezes sooner in half of years.
Similar climates: Cardiff, AL, Adamsville, AL, Brookside, AL, West Jefferson, AL, Mount Olive, AL.
Frequently asked
- When does it freeze in Graysville?
- Graysville's last spring frost lands near March 21, and in Graysville the first fall frost follows around November 11.
- What is the rainy season in Graysville?
- Graysville sees its heaviest rain in March (around 5.7 inches), part of roughly 57 inches a year.
- What is the warmest month in Graysville?
- Graysville peaks in July, when the mean runs near 82°F.
- What is the coldest month in Graysville?
- January is Graysville's coldest month, averaging about 45°F.
- When can I start a vegetable garden in Graysville?
- Around March 21, start frost-hardy crops in Graysville; tomatoes and basil belong a fortnight later.
- How many rainy days does Graysville get?
- Graysville averages about 118 days with measurable rain or snow each year.
- What hardiness zone is Graysville?
- Because Graysville bottoms near 45°F in January, that winter low sets Graysville's USDA zone — verify by ZIP.
- What is the 10-day forecast for Graysville?
- Graysville'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 Graysville?
- See this week's day-by-day rain chances for Graysville in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Graysville?
- Current conditions for Graysville and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Graysville forecast updated?
- The Graysville forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Graysville?
- Today's sunrise and sunset times for Graysville 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 Graysville?
- The next few days in Graysville's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Graysville sits at 33.7°N; its climate zone is humid subtropical (Köppen approximation).
ZIP codes in Graysville
- 35073
- 35117