Cary, North Carolina Weather
Hourly forecast in Cary
16-day forecast for Cary
Check any date
Cary air quality & conditions
Air quality index
Today's outlook for Cary
Loading today's outlook…
Explore nearby
Weather articles
Weather news
Climate of Cary: monthly averages
Based on 25 years of satellite and reanalysis data (2001-2025), July is usually the hottest month in Cary, with average daytime highs around 33°C. January is the coolest, when nights typically fall to about -2°C and frost is possible on the coldest nights. That is a wide yearly range of roughly 35°C, so the seasons feel very different from each other.
The area receives about 1190 mm of rain in a typical year. Most of it falls from June to September, and August is the wettest month at roughly 127 mm.
For outdoor plans and travel, April to May and October usually offer the most comfortable weather in Cary, with mild days and relatively little rain.
| Month | Avg high | Avg low | Rainfall | Humidity |
|---|---|---|---|---|
| Jan | 9° | -2° | 72 mm | 80% |
| Feb | 11° | 0° | 74 mm | 79% |
| Mar | 16° | 3° | 96 mm | 78% |
| Apr | 22° | 9° | 91 mm | 75% |
| May | 26° | 14° | 99 mm | 75% |
| Jun | 31° | 19° | 118 mm | 72% |
| Jul | 33° | 21° | 122 mm | 70% |
| Aug | 32° | 20° | 127 mm | 73% |
| Sep | 28° | 16° | 119 mm | 75% |
| Oct | 22° | 10° | 87 mm | 77% |
| Nov | 16° | 4° | 88 mm | 77% |
| Dec | 11° | 0° | 94 mm | 81% |
Source: NASA POWER (MERRA-2 reanalysis), averaged over the roughly 50 km grid area around Cary. Values describe typical conditions, not a forecast.
About Cary weather
Cary sits within North Carolina's range from Atlantic coastal plain to the cooler Appalachian mountains, about 13 km west of Raleigh. Conditions turn hot with hot, humid summers (June–August) with highs in the low-to-mid 30s°C. By December, expect mild winters near the coast, colder with regular snow in the mountains. This page shows live, auto-refreshing weather for Cary: current conditions, an hourly breakdown, a 16-day outlook, a date-lookup tool for any past or future date, and real-time air quality, sourced from Open-Meteo. Local timezone: America/New_York.
Frequently asked questions
Cary is about 13 km west of Raleigh, in North Carolina.
Cary sees mild winters near the coast, colder with regular snow in the mountains.
The live current conditions, hourly forecast and 16-day outlook above are pulled in real time for Cary's exact coordinates. No fixed schedule, the page updates whenever you load it.
July is usually the hottest month in Cary, with average daytime highs of about 33°C and nights around 21°C.
The coldest nights come in January, when the average low is about -2°C and daytime highs reach around 9°C. Frost is possible on clear, calm nights.
Cary receives about 1190 mm of rain in a typical year. August is the wettest month at roughly 127 mm, and the main rainy period is June to September.
April to May and October usually offer the most comfortable weather in Cary, with mild daytime temperatures and little rain.
In November Cary typically sees daytime highs near 16°C and lows near 4°C, with about 88 mm of rain over the month and average humidity around 77%. Check the live forecast above for this week's actual conditions.
Up to 16 days ahead using the extended forecast and date picker above; further-out or historical dates use the same date lookup tool.
Live temperature for Cary is shown at the top of this page and refreshes automatically — see the hourly breakdown below for how it changes through the day.
Cary's day-to-day weather follows the broader pattern of North Carolina described above. See the hourly weather forecast or the air quality index for more detail.