Onslow County weather, town by town
9 places in Onslow County, North Carolina, each with its own live forecast and radar, and where a station sits close enough, measured weather records.
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Measured at the NOAA stations serving these towns, daily records 1955 to 2026. Station extremes, not official state records.
Onslow County Weather Facts
Onslow County has 9 places on myweatherrock (4 census-designated places, 4 towns, 1 cities), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 103°F at Jacksonville Eoc on July 14, 2011. The coldest night is -5°F at New Rvr Mcaf on December 25, 1989. The wettest day brought 16 inches of rain at Jacksonville Eoc on September 15, 2018. The biggest single-day snow measured 11.42 inches at Newport/Morehead City Wfo on January 31, 2026. Those are station measurements from NOAA's daily records, 1955 to 2026, not official state records. By area the largest place is Jacksonville, about 49 square miles.
About Onslow County weather
The map on the Now tab shows every Onslow County town's current temperature from our own server, one dot per town. Tap any dot, or type a town above, for that town's full forecast.
What the weather is usually like
Across the 9 Onslow County towns with station normals, the warmest month is July, when the day usually reaches 90°F, and the coldest is January, when the night usually falls to 34°F. August is the wettest, with rain on about 13 days. July afternoons run from about 86°F in Swansboro to 90°F in Half Moon. January nights run from about 32°F in Richlands to 35°F in Holly Ridge.
Means of the 1991 to 2020 station normals serving these towns, as published by NOAA; each town's page carries its own.
Where these numbers come from
- Current conditions and forecast: NOAA forecast grids decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
- Records: computed by myweatherrock from NOAA GHCN-Daily station records at the stations serving these towns. Measurements, not estimates.
- Warnings and alerts: the National Weather Service, passed through unchanged.
Onslow County weather records
Measured at the NOAA stations serving these towns, daily records 1955 to 2026. Station extremes, not official state records.
Common questions about Onslow County weather
- What is the hottest temperature recorded at a Onslow County station?
- 103°F at Jacksonville Eoc on July 14, 2011, in the NOAA daily station records myweatherrock holds (1955 to 2026).
- What is the coldest temperature recorded at a Onslow County station?
- -5°F at New Rvr Mcaf on December 25, 1989.
- What is the most rain a Onslow County station has measured in one day?
- 16 inches at Jacksonville Eoc on September 15, 2018.
- What is the biggest one-day snowfall at a Onslow County station?
- 11.42 inches at Newport/Morehead City Wfo on January 31, 2026.
- How many Onslow County towns have a weather page here?
- 9: 4 census-designated places, 4 towns, 1 cities. Each page carries current conditions, the hourly timeline, the ten day outlook, radar, and where a station sits close enough, measured records.
- Where does the Onslow County forecast come from?
- NOAA forecast grids (the National Weather Service digital forecast, the National Blend of Models, HRRR and GFS) decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
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