Cary, North Carolina Weather
Sun climbs to its northern throne. Day 88 of spring. Read this microseason across nine climate regions →
Cary weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 15Overcast24%—87°74°—
- TuesdayJun 16Overcast——89°67°+2°
- WednesdayJun 17Overcast17%—92°73°+3°
- ThursdayJun 18Drizzle42%—98°73°+6°
- FridayJun 19Thunderstorm58%0.01″88°71°-10°
- SaturdayJun 20Drizzle41%—86°66°-2°
- SundayJun 21Overcast13%—92°61°+6°
AQI 56 (Moderate), driven by Ozone. AQI up 20 in the last 6 hours — air quality is degrading. Ozone at AQI 75 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
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 75 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 75
- UV peak
- 2.6 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 75
PM × Wind × Precip
PM2.5 at 5.4 µg/m³, PM10 at 6.3 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.86
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- background
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
- 6:02 AM
- Moonset
- 8:43 PM
- In sign
- ♋︎ Cancer
Sun climbs to its northern throne
Cary at a glance
- Today vs. normal: 8°F above the seasonal normal for this latitude
- Last frost: March 22 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — Cary
- Mon87°74°24%
- Tue89°67°5%
- Wed92°73°17%
- Thu98°73°42%
- Fri88°71°58%
- Sat86°66°41%
- Sun92°61°13%
- Mon99°69°29%
- Tue89°70°38%
- Wed76°68°33%
- Thu73°67°28%
- Fri82°67°44%
- Sat90°66°55%
- Sun92°69°48%
- Mon93°72°32%
- Tue92°73°27%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Cary
Right now in the garden
Peak growing season
As of June 15, 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.
Microseason · June 11–15
Sun climbs to its northern throne
Days lengthen toward solstice; longest light lingers until after 8 PM, heat building steadily.
Day 166 of 365 · Wedge 33 of 72
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | lettuce, peas, spinach, radishes | — |
| April | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | — |
| May | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | — | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | — | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | fall brassicas, garlic (overwinter), carrots | — |
| December | — | — |
A year in weather
Cary peaks at about 80°F in July and bottoms near 42°F in January; September brings the heaviest rain (5.7 inches) and February the least (2.9 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 42° | 3.6″ | 7 |
| February | 44° | 2.9″ | 6 |
| March | 51° | 4.2″ | 7 |
| April | 61° | 3.6″ | 6 |
| May | 69° | 4.0″ | 6 |
| June | 77° | 4.9″ | 7 |
| July | 80° | 4.7″ | 7 |
| August | 79° | 4.7″ | 7 |
| September | 73° | 5.7″ | 6 |
| October | 62° | 3.9″ | 5 |
| November | 52° | 3.5″ | 5 |
| December | 45° | 3.7″ | 6 |
Regional context
By the nearest station's NOAA NCEI 1991-2020 normals, Cary sees 42°F Januarys and 80°F Julys, a 39°F range, plus around 49.4 inches of precipitation across 74 days.
No season owns Cary's rain: September reaches 5.7 inches across 5.9 days and February keeps 2.9 inches on 6.0, an even spread through Cary's year. It is a balanced pattern Cary shares with places like Morrisville, NC, Apex, NC and Holly Springs, NC.
The cool-season window in Cary starts at mid-March, when nights stop freezing — think peas, lettuce, spinach, and radishes. In Cary, warm-season transplants — tomatoes, peppers, basil — wait two weeks past Cary's frost date. Around mid-December, freezing nights resume in Cary and tender crops must come in. Within Cary, cold-air pooling chills low spots by 5-10°F, shifting Cary's local frost dates.
Similar climates: Morrisville, NC, Apex, NC, Holly Springs, NC, Raleigh, NC, Carolina Meadows, NC.
Naturalist notes
Late May brings the arrival of migrating ruby-throated hummingbirds to North Carolina feeders and flowering plants.
Dogwood trees typically finish their spectacular white bloom period by early May across the Piedmont region.
Frequently asked
- When does it freeze in Cary?
- In Cary, expect the last spring frost near mid-March; Cary's first autumn frost comes around mid-December.
- What is the rainy season in Cary?
- September is the wettest month in Cary, about 5.7 inches on average; the year totals roughly 49 inches.
- What is the warmest month in Cary?
- July is Cary's warmest month, averaging about 80°F.
- What is the coldest month in Cary?
- Cary bottoms out in January, with a mean near 42°F.
- When can I start a vegetable garden in Cary?
- Time tomatoes in Cary for two weeks after mid-March; peas and greens start at Cary's frost line.
- How many rainy days does Cary get?
- Expect roughly 74 wet days a year in Cary.
- What hardiness zone is Cary?
- Cary sits in the USDA zone set by January lows near 42°F; the USDA ZIP tool gives the band.
- What is the 10-day forecast for Cary?
- Cary'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 Cary?
- See this week's day-by-day rain chances for Cary in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Cary?
- Current conditions for Cary and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Cary forecast updated?
- The Cary forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Cary?
- Day length in Cary peaks around the June solstice — earliest sunrise and latest sunset — and is shortest near the December solstice.
- How accurate is the weather forecast for Cary?
- The next few days in Cary's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Cary, North Carolina has a humid subtropical climate: January averages roughly 42°F, July about 80°F, 38°F between them.
Across the year, Cary collects about 49 inches of precipitation over roughly 74 days with measurable rain or snow.
Latitude 35.8°N gives Cary its 38°F swing, and with it the rhythm of Cary's growing season.
ZIP codes in Cary
- 27560
- 27518
- 27519
- 27511
- 27513
- 27512