Rayville, Missouri Weather
Fireflies pulse through the magnolias. Day 77 of spring. Read this microseason across nine climate regions →
Rayville weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Overcast25%—85°62°—
- FridayJun 5Thunderstorm44%—92°71°+7°
- SaturdayJun 6Drizzle28%—84°69°-8°
- SundayJun 7Showers64%0.12″82°67°-2°
- MondayJun 8Heavy Showers55%0.49″82°68°0°
- TuesdayJun 9Thunderstorm36%—90°70°+8°
- WednesdayJun 10Thunderstorm11%—89°73°-1°
AQI 25 (Good), driven by Ozone. AQI down 14 over the last 6 hours (steady decline since this morning).
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 4:44 AM
- Moonset
- 2:20 PM
- In sign
- ♑︎ Capricorn
Fireflies pulse through the magnolias
Rayville at a glance
- Today vs. normal: 13°F below the seasonal normal for this latitude
- Last frost: April 12 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 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 — Rayville
SPC has placed Rayville in the General Thunderstorms category for severe thunderstorms today.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
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.
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
Rayville's warmest month is July (~77°F mean) and its coldest is January (~26°F). Rainfall peaks in May (6.3 inches) and bottoms out in January (1.3 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 26° | 1.3″ | 3 |
| February | 31° | 1.6″ | 4 |
| March | 42° | 2.7″ | 6 |
| April | 52° | 4.1″ | 7 |
| May | 63° | 6.3″ | 9 |
| June | 72° | 5.4″ | 8 |
| July | 77° | 4.9″ | 6 |
| August | 74° | 4.2″ | 6 |
| September | 67° | 4.0″ | 6 |
| October | 54° | 3.4″ | 6 |
| November | 42° | 2.4″ | 4 |
| December | 31° | 1.7″ | 4 |
Regional context
Rayville's baseline climate, derived from NOAA NCEI 1991-2020 normals at the nearest reporting station, swings from a January mean of 26°F to a July mean of 77°F — a 51°F seasonal arc typical of the mid-latitude bands. Annual precipitation runs about 42.1 inches spread across roughly 69 days with measurable rain or snow each year.
Precipitation runs summer-dominant here: May averages 6.3 inches across 8.9 days with measurable rain, driven mostly by warm-season storms and thunderstorm activity, while January drops to just 1.3 inches across 2.9 rainy days under drier cool-season air. The warm-season-wet rhythm lines Rayville up with places like Vibbard, MO, Wood Heights, MO and Crystal Lakes, MO, where the May-September stretch delivers the bulk of the year's precipitation.
The frost-sensitive growing window opens around mid-April, when overnight lows reliably clear freezing for cool-season crops like kale, peas, spinach, and parsnips. Heat-loving transplants like tomatoes, peppers, and squash generally hold off for another 10-14 days to clear the last spring frost risk window. The window closes around mid-November, when overnight lows resume dipping below freezing and frost-tender plants need protection or harvest. The dates above are 1991-2020 normals; in a given year either bookend can move 1-2 weeks either direction. Within Rayville, low-lying parcels along drainage features typically lose 4-7°F of overnight low temperature versus the bench positions on calm clear nights, which shifts the working last-frost date by a week or more.
Similar climates: Vibbard, MO, Wood Heights, MO, Crystal Lakes, MO, Richmond, MO, Homestead, MO.
Frequently asked
- When does it freeze in Rayville?
- Rayville's last spring frost typically falls around mid-April, and the first fall frost arrives around mid-November.
- What is the rainy season in Rayville?
- May is the wettest month with about 6.3 inches of rain on average; the city receives roughly 42 inches annually.
- What is the warmest month in Rayville?
- July is typically warmest, averaging about 77°F.
- What is the coldest month in Rayville?
- January is typically coldest, averaging about 26°F.
- When can I start a vegetable garden in Rayville?
- Cool-season crops (peas, lettuce) can be sown around the last spring frost (mid-April); warm-season crops (tomatoes, peppers) wait until 1–2 weeks after.
- How many rainy days does Rayville get?
- Rayville averages about 69 rainy days per year.
- What hardiness zone is Rayville?
- Rayville's USDA hardiness zone is determined by its lowest average winter temperature; check the USDA's online lookup with the city ZIP for the current zone designation.
Climate
Rayville, Missouri sits in a humid subtropical climate zone. January means hover near 26°F while July averages 77°F — a 51°F seasonal swing.
Across the year, Rayville receives about 42 inches of precipitation spread over roughly 69 rainy days.
The rhythm of the year is set by latitude (39.3°N), proximity to large water bodies, and elevation — all of which shape what grows here, when frost is likely, and what the weather story looks like day to day.