Baton Rouge, Louisiana Weather
Thunder quiets the land. Day 93 of summer. Read this microseason across nine climate regions →
Baton Rouge weather forecast — hour by hour, 7-day outlook, NOAA radar
Conditions updated 1:10 AM CDT · Open-Meteo
- TodaySep 21Clear37%—95°75°—
- TuesdaySep 22Overcast14%—95°72°0°
- WednesdaySep 23Overcast——97°77°+2°
- ThursdaySep 24Overcast——97°77°0°
- FridaySep 25Overcast——94°79°-3°
- SaturdaySep 26Overcast——95°74°+1°
- SundaySep 27Overcast——94°74°-1°
Air quality now AQI 52 · Moderate
AQI 52 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 10.5 µg/m³ (AQI 54) with a 0.85 fine-to-coarse ratio and 3 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 10.5 µg/m³ (AQI 54) with a 0.85 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in stagnant air, not road dust.
- PM2.5/PM10
- 0.85
- 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
- 4:13 PM
- Moonset
- 1:54 AM
- In sign
- ♑︎ Capricorn
Thunder quiets the land
Read this microseason across nine climate regions →
All 72 microseasons on the year wheel →
Baton Rouge at a glance
- Today vs. normal: Today averages 85°F (high 95°F, low 75°F), 8°F above the 77°F normal for Sep 21
- Last frost: February 28 (1991–2020 median, NOAA station 9 km away)
- Microseason: Sep 21–25
- Planting calendar: September — plant beans, squash, fall brassicas, carrots; harvest beans, summer squash, winter squash
15-Day Forecast — Baton Rouge
- Mon95°75°37%
- Tue95°72°14%
- Wed97°77°9%
- Thu97°77°1%
- Fri94°79°1%
- Sat95°74°3%
- Sun94°74°7%
- Mon93°75°17%
- Tue93°71°34%
- Wed85°69°27%
- Thu91°70°18%
- Fri92°72°32%
- Sat89°73°23%
- Sun85°74°23%
- Mon90°71°19%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Baton Rouge
Interactive wind and temperature map centered on Baton Rouge — it loads in your browser. Open the full weather map.
Right now in the garden
Late season
As of September 21, the first frost (around November 26) is about 9 weeks away. Frost-tender plants keep producing until then. This city's planting calendar for September: plant beans, squash, fall brassicas, and carrots; harvest beans, summer squash, and winter squash.
SPC Convective Outlook
Storm Prediction Center — Baton Rouge
SPC includes Baton Rouge in the general thunderstorm area today — no severe risk, but storms are possible.
- 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.
Sun & seasons in Baton Rouge
Baton Rouge sits in East Baton Rouge County, where the year’s longest day runs 14h 7m of daylight and its shortest just 10h 11m — a swing of +3h 56m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.
New Orleans, the state’s largest city, lies about 76 miles to the ESE. The nearest town Baton Rouge tracks is Village St. George, roughly 7 miles to the SE.
Air quality in Baton Rouge
Air quality in Baton Rouge’s county has trended dirtier since 2020; its cleanest year on record was 2020 (median AQI 45). See the full air-quality history for Baton Rouge.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| February | lettuce, peas, spinach, radishes | — |
| March | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, spinach, radishes |
| April | tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes |
| May | squash | lettuce, peas, spinach, beans, summer squash, garlic |
| June | beans, squash | tomatoes, peppers, beans, summer squash, winter squash, garlic |
| July | beans, squash | tomatoes, peppers, summer squash, winter squash |
| August | tomatoes, peppers, beans, squash | summer squash, winter squash |
| September | beans, squash, fall brassicas, carrots | beans, summer squash, winter squash |
| October | garlic (overwinter) | tomatoes, peppers, beans, summer squash, winter squash |
| November | garlic (overwinter) | tomatoes, peppers, beans, summer squash, winter squash, fall brassicas, carrots |
| December | — | fall brassicas, carrots |
A year in weather
The year in Baton Rouge tops out in July (~82°F) and dips lowest in January (~51°F), with July wettest at 5.4 inches and October driest at 2.0 inches.
| Month | Mean temp | Precip |
|---|---|---|
| January | 51° | 4.5″ |
| February | 53° | 4.3″ |
| March | 60° | 4.8″ |
| April | 67° | 4.9″ |
| May | 75° | 3.6″ |
| June | 81° | 3.7″ |
| July | 82° | 5.4″ |
| August | 82° | 5.4″ |
| September | 78° | 3.1″ |
| October | 70° | 2.0″ |
| November | 60° | 4.2″ |
| December | 53° | 5.3″ |
Regional context
Similar climates Westminster, LA, Merrydale, LA, Inniswold, LA
In Baton Rouge, modelled 1991-2020 normals (EC_Earth3P_HR model via Open-Meteo) put January near 51°F and July near 82°F — a 32°F seasonal arc — with about 51.2 inches of precipitation.
Rainfall in Baton Rouge splits evenly between the seasons: July tops out at 5.4 inches, and October logs 2.0 inches — neither half of Baton Rouge's year dominates. That even rhythm groups Baton Rouge with places like Westminster, LA, Merrydale, LA and Inniswold, LA.
Once Baton Rouge passes February 28, freezes fade and Baton Rouge's beds take lettuce, chard, arugula, and mustard greens. Tomatoes and peppers do best set out two weeks later in Baton Rouge, once nights clear the mid-40s°F. Frost returns to Baton Rouge near November 26, ending the tender-crop season. Open lawns in Baton Rouge whiten first when frost returns.
Similar climates: Westminster, LA, Merrydale, LA, Inniswold, LA, Port Allen, LA, Oak Hills Place, LA.
Frequently asked
- When does it freeze in Baton Rouge?
- Frost typically leaves Baton Rouge by February 28 and returns to Baton Rouge near November 26.
- What is the rainy season in Baton Rouge?
- July is the wettest month in Baton Rouge, about 5.4 inches on average; the year totals roughly 51 inches.
- What is the warmest month in Baton Rouge?
- Baton Rouge peaks in July, when the mean runs near 82°F.
- What is the coldest month in Baton Rouge?
- January is Baton Rouge's coldest month, averaging about 51°F.
- When can I start a vegetable garden in Baton Rouge?
- In Baton Rouge, sow peas and hardy greens around February 28; Baton Rouge's tomatoes and peppers wait two weeks more.
- What hardiness zone is Baton Rouge?
- With January around 51°F, Baton Rouge's zone reflects that minimum — the USDA ZIP map confirms Baton Rouge's band.
- What is the 10-day forecast for Baton Rouge?
- Baton Rouge'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 Baton Rouge?
- See this week's day-by-day rain chances for Baton Rouge in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Baton Rouge?
- Current conditions for Baton Rouge and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Baton Rouge forecast updated?
- The Baton Rouge forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Baton Rouge?
- Today's sunrise and sunset times for Baton Rouge 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 Baton Rouge?
- The next few days in Baton Rouge's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Baton Rouge sits at 30.4°N; its climate zone is humid subtropical (Köppen approximation).
ZIP codes in Baton Rouge
- 70801
- 70802
- 70803
- 70804
- 70805
- 70806
- 70807
- 70808
- 70809
- 70810
- 70811
- 70812
- 70813
- 70814
- 70815
- 70816
- 70817
- 70818
- 70819
- 70820
- 70821
- 70822
- 70823
- 70825
- 70827
- 70831
- 70833
- 70835
- 70836
- 70873
- 70874
- 70891
- 70892
- 70893
- 70894
- 70895
- 70898