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Krxk-Am Rexburg Weather Forecast
| TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SUNDAY |
 |  |  | | | | | | |  | | |
| Chance of T-Storm | Mostly Clear | Sunny | Mostly Clear | Sunny | Mostly Clear | Sunny | Mostly Clear | Mostly Clear | Partly Cloudy | Mostly Clear | Mostly Clear |
| Hi: 67°FHi: 19°C | Lo: 41°FLo: 5°C | Hi: 69°FHi: 21°C | Lo: 42°FLo: 6°C | Hi: 71°FHi: 22°C | Lo: 42°FLo: 6°C | Hi: 71°FHi: 22°C | Hi: 73°FHi: 23°C Lo: 45°FLo: 7°C | Hi: 73°FHi: 23°C Lo: 45°FLo: 7°C | Lo: 47°FLo: 8°C | Hi: 71°FHi: 22°C Lo: 44°FLo: 7°C | Hi: 71°FHi: 22°C Lo: 44°FLo: 7°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1232 AM MDT Mon Sep 28 2026 
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Issued: 546 AM MDT Mon Sep 28 2026
Key Messages
- Showers East of I-15: A brief round of showers and isolated thunderstorms today primarily along and east of the I-15 corridor, focusing over the Eastern Highlands.
- Noticeably Cooler Today: Showers exit rapidly today with clearing skies. Post-frontal air will drop valley daytime highs into the 60sroughly 10 degrees cooler than yesterday`s readings.
- Early October Warming Trend: High pressure builds over the Intermountain West starting Wednesday, keeping the remainder of the 7-day forec...