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Johnston Lake, GA Weather Forecast
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Johnston Lake Weather Forecast
| THIS AFTERNOON | TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT |
 |  |  |  | |  | | | |  | | |
| Chance of T-Storm | Partly Cloudy | Sunny | Mostly Clear | Chance of T-Storm | Chance of Showers | Sunny | Mostly Clear | Sunny | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm |
| Hi: 91°FHi: 33°C | Lo: 75°FLo: 24°C | Hi: 95°FHi: 35°C | Lo: 75°FLo: 24°C | Hi: 95°FHi: 35°C | Lo: 75°FLo: 24°C | Hi: 91°FHi: 33°C | Lo: 70°FLo: 21°C | Hi: 91°FHi: 33°C | Lo: 71°FLo: 22°C | Hi: 91°FHi: 33°C | Lo: 71°FLo: 22°C |
| POP: 20% | POP: 20% | POP: 20% | POP: 20% | POP: 30% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 227 PM EDT Sat Aug 15 2026 
Johnston Lake Radar Loop
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Johnston Lake Forecast Discussion
Issued: 222 PM EDT Sat Aug 15 2026
Key Messages
- Oppressive heat will continue through early next week. A Heat Advisory remains in effect through Sunday evening and additional heat headlines are likely.
- Isolated to scattered thunderstorms will be around to some degree each afternoon, with primary threats being gusty winds and locally heavy rainfall.
Aviation
... (18Z TAFS) Issued at 122 PM EDT Sat Aug 15 2026
VFR conditions will prevail outside of sct TSRA with peak coverage through 00Z and diminishing th...