Weather World
Flag Lake, MS Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Flag Lake Weather Forecast
| REST OF TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY |
 |  | | | | | | |  |  |  | |
| Clear | Sunny | Clear | Sunny | Mostly Clear | Sunny | Mostly Clear | Sunny | Partly Cloudy | Chance of T-Storm | Chance of Showers | Chance of T-Storm |
| Lo: 71°FLo: 22°C | Hi: 99°FHi: 37°C | Lo: 71°FLo: 22°C | Hi: 99°FHi: 37°C | Lo: 75°FLo: 24°C | Hi: 100°FHi: 38°C | Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C | Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C | Lo: 71°FLo: 22°C | Hi: 91°FHi: 33°C |
| POP: 30% | POP: 30% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 906 PM CDT Wed Sep 16 2026 
Flag Lake Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Flag Lake Weather Map
Flag Lake Quick Facts
Flag Lake Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 622 PM CDT Wed Sep 16 2026
Key Messages
Issued at 622 PM CDT Wed Sep 16 2026- Hazardous heat will persist through the weekend, with little rainfall expected over the next seven days.
- An areawide Heat Advisory is in effect through 8 PM Saturday.
- A frontal boundary will bring increased rain chances to the Mid-South early next week.
Discussion
... (This afternoon through next Tuesday) Issued at 1113 AM CDT Wed Sep 16 2026
Hot conditions will continue underneath a 600 dam ridge with afternoon highs reaching the upper 90s to low 10...