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Bethlehem Weather Forecast
| REST OF TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY |
 |  | | |  |  |  |  | |  | | |
| Clear | Partly Cloudy | Mostly Clear | Partly Cloudy | Partly Cloudy | Chance of Showers | Chance of T-Storm | Chance of T-Storm | Clearing | Mostly Sunny | Mostly Clear | Partly Cloudy |
| Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C | Lo: 55°FLo: 13°C | Hi: 81°FHi: 27°C | Lo: 69°FLo: 21°C | Hi: 85°FHi: 29°C | Lo: 69°FLo: 21°C | Hi: 79°FHi: 26°C | Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C | Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C |
| POP: 40% | POP: 90% | POP: 70% |
POP = Probability of Precipitation.
Weather Outlook Updated: 217 AM EDT Mon Sep 07 2026 
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Issued: 342 AM EDT Mon Sep 7 2026
Key Messages
1) Dry with gradual warming through Wednesday.
2) Cold front brings showers/storms late Wednesday into Wednesday night.
Discussion
... KEY MESSAGE 1... Upper level ridging over the plains region that has been persistent over the past several days will work its way eastward into the Great Lakes heading towards midweek. High pressure that had been building into the southern Great Lakes from the north will finally trudge eastward after keeping the region in northeasterly flow this weekend....