Waterloo, AL Weather Forecast
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| REST OF TONIGHT | SUNDAY | SUNDAY NIGHT | LABOR DAY | MONDAY NIGHT | TUESDAY | WEDNESDAY | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY |
| Patchy Fog | Patchy Fog | Mostly Clear | Mostly Sunny | Partly Cloudy | Mostly Clear | Mostly Clear | Chance of T-Storm | Chance of Showers | Chance of Showers | Partly Cloudy | Chance of Showers |
| Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°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 | Hi: 91°FHi: 33°C Lo: 71°FLo: 22°C | Hi: 95°FHi: 35°C | Hi: 91°FHi: 33°C Lo: 70°FLo: 21°C | Hi: 91°FHi: 33°C Lo: 70°FLo: 21°C | Lo: 69°FLo: 21°C | Hi: 91°FHi: 33°C |
| POP: 30% | POP: 30% | POP: 30% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 232 AM CDT Sun Sep 06 2026 

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Issued: 419 AM CDT Sun Sep 6 2026
Key Messages
Updated at 419 AM CDT Sun Sep 6 2026- A Heat Advisory remains in effect through 8 PM this evening due to a Major Heat Risk, and afternoon heat indices rising up to 105-109 degrees in portions of the forecast area.
- A risk of strong to severe thunderstorms is forecast for much of the Tennessee Valley today. Strong to damaging wind gusts are the main threats posed by the stronger storms.
- Not as hot high temperatures continue from Labor Day into the late week.
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... (06Z TAFS) Issued...
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