Johnston County, NC Weather Forecast
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Johnston County Weather Forecast
| TODAY | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT |
| Mostly Sunny | Mostly Clear | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Chance of Showers | Chance of Showers | Chance of Showers | Partly Sunny | Mostly Clear |
| Hi: 90°FHi: 32°C | Lo: 69°FLo: 21°C | Hi: 91°FHi: 33°C | Lo: 69°FLo: 21°C | Hi: 85°FHi: 29°C | Lo: 65°FLo: 18°C | Hi: 79°FHi: 26°C Lo: 61°FLo: 16°C | Hi: 79°FHi: 26°C Lo: 61°FLo: 16°C | Hi: 75°FHi: 24°C | Lo: 59°FLo: 15°C | Hi: 75°FHi: 24°C | Hi: 75°FHi: 24°C Lo: 55°FLo: 13°C |
| POP: 50% | POP: 50% | POP: 70% | POP: 70% | POP: 50% | POP: 50% | POP: 40% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 407 AM EDT Sun Sep 20 2026 

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Instant definitions for any meteorological term.
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Issued: 640 AM EDT Sun Sep 20 2026
Key Messages
As of 200 AM Sunday...
1) Isolated strong to severe storms, capable of damaging straight- line winds and torrential rainfall will be possible Monday and Tuesday.
2) Classic cold-air damming pattern will likely develop by mid-week and bring well-below normal temperatures into the weekend.
Discussion
... As of 200 AM Sunday...
KEY MESSAGE 1... Isolated strong to severe storms, capable of damaging straight-line winds and torrential rainfall will be possible Monday and Tuesday.
A weak wave of ...
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