Weather WorldLewiston, UT Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Lewiston Weather Forecast
| TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT |
 |  |  |  | | | | | | | | |
| Sunny | Mostly Clear | Partly Cloudy | Partly Cloudy | Sunny | Mostly Clear | Sunny | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy |
| Hi: 71°FHi: 22°C | Lo: 40°FLo: 4°C | Hi: 79°FHi: 26°C | Lo: 45°FLo: 7°C | Hi: 80°FHi: 27°C | Lo: 49°FLo: 9°C | Hi: 75°FHi: 24°C | Hi: 79°FHi: 26°C Lo: 45°FLo: 7°C | Hi: 79°FHi: 26°C Lo: 45°FLo: 7°C | Lo: 45°FLo: 7°C | Hi: 69°FHi: 21°C Lo: 39°FLo: 4°C | Hi: 69°FHi: 21°C Lo: 39°FLo: 4°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1244 AM MDT Wed Sep 23 2026 
Lewiston Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Lewiston Weather Map
Lewiston Quick Facts
Lewiston Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 621 AM MDT Wed Sep 23 2026
Key Messages
.KEY MESSAGES, Issued 1011 PM MDT Tue Sep 22 2026...- A dry and stable airmass will settle across the region Wednesday resulting in near normal temperatures.
- High pressure will bring a warming trend for the latter half of the week.
- Lingering moisture will maintain a chance of showers and thunderstorms across southern Utah Thursday.
Discussion
, Issued 1011 PM MDT Tue Sep 22 2026... A shortwave trough which brought several rounds of showers and thunderstorms across northern Utah today is...