Johnston County weather, town by town
11 places in Johnston 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 1892 to 2026. Station extremes, not official state records.
Johnston County Weather Facts
Johnston County has 11 places on myweatherrock (11 towns), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 108°F at Dunn 4 Nw on August 22, 1983. The coldest night is -10°F at Clayton Wtp on January 21, 1985. The wettest day brought 9.9 inches of rain at Clayton Wtp on August 28, 1995. The biggest single-day snow measured 17.99 inches at Smithfield on March 2, 1927. Those are station measurements from NOAA's daily records, 1892 to 2026, not official state records. By area the largest place is Clayton, about 17 square miles.
About Johnston County weather
The map on the Now tab shows every Johnston 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 11 Johnston 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 30°F. July is the wettest, with rain on about 11 days. January nights run from about 29°F in Archer Lodge to 32°F in Kenly.
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.
Johnston County weather records
Measured at the NOAA stations serving these towns, daily records 1892 to 2026. Station extremes, not official state records.
Common questions about Johnston County weather
- What is the hottest temperature recorded at a Johnston County station?
- 108°F at Dunn 4 Nw on August 22, 1983, in the NOAA daily station records myweatherrock holds (1892 to 2026).
- What is the coldest temperature recorded at a Johnston County station?
- -10°F at Clayton Wtp on January 21, 1985.
- What is the most rain a Johnston County station has measured in one day?
- 9.9 inches at Clayton Wtp on August 28, 1995.
- What is the biggest one-day snowfall at a Johnston County station?
- 17.99 inches at Smithfield on March 2, 1927.
- How many Johnston County towns have a weather page here?
- 11: 11 towns. 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 Johnston 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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