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Hallam Weather Forecast
| TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT |
 |  |  |  |  | | | | | |  |  |
| Patchy Fog | Mostly Cloudy | Mostly Cloudy | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Mostly Sunny | Partly Cloudy |
| Hi: 65°FHi: 18°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C | Lo: 59°FLo: 15°C | Hi: 65°FHi: 18°C | Lo: 60°FLo: 16°C | Hi: 69°FHi: 21°C | Lo: 60°FLo: 16°C | Hi: 75°FHi: 24°C | Lo: 61°FLo: 16°C | Hi: 79°FHi: 26°C | Lo: 61°FLo: 16°C |
| POP: 50% | POP: 80% | POP: 70% | POP: 70% | POP: 80% | POP: 50% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 904 AM CDT Tue Sep 22 2026 
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Issued: 601 AM CDT Tue Sep 22 2026
Key Messages
- There is a 20% chance of drizzle Tuesday morning and a few showers in the afternoon and evening, but expect much more dry time than wet.
- Much of Wednesday is favored to be dry before persistent shower and storm chances return Wednesday night and last through Saturday.
- Cool weather will stick around with the rain chances, with a brief warmup and dry period favored on Sunday. Rain chances return early next week.
Discussion
... Issued at 1146 PM CDT Mon Sep 21 2026
An upper level low conti...