Lewiston, UT Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Lewiston, UT in one place.
Mostly sunny, with a high near 67.
Local Weather Overview
This forecast page for Lewiston, UT is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Apr 15, 2026 8:34 AM MDT.
The active forecast window currently covers Apr 19 to Apr 21, 2026 for Lewiston, UT.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 19 to Apr 21, 2026
- Latest sync
- Apr 15, 2026 8:34 AM MDT
- Forecast office
- SLC
- Source
- NOAA / NWS
Daily Outlook
This Week in Lewiston
Monday looks like the warmest upcoming period in Lewiston at 71 degrees F.
Sunday Night is the coolest period ahead with temperatures near 36 degrees F.
The strongest winds are forecast for Monday at about 3 to 13 mph SE.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 15, 2026 8:34 AM MDT
- Coverage
- 4 days
- Time zone
- America/Denver
- Forecast office
- SLC
- Radar station
- KMTX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 36.
Mostly sunny, with a high near 71.
Partly cloudy, with a low around 40.
A slight chance of rain showers before noon, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 71.
A slight chance of rain showers. Partly cloudy, with a low around 40.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
Apr 19
|
Mostly Sunny
|
67°F |
2 to 8 mph
SE
|
|
Sunday Night
Apr 19
|
Partly Cloudy
|
36°F |
5 to 8 mph
SE
|
|
Monday
Apr 20
|
Mostly Sunny
|
71°F |
3 to 13 mph
SE
|
|
Monday Night
Apr 20
|
Partly Cloudy
|
40°F |
5 to 12 mph
SE
|
|
Tuesday
Apr 21
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
71°F |
5 to 12 mph
SSE
|
|
Tuesday Night
Apr 21
|
Slight Chance Rain Showers
|
40°F |
5 to 9 mph
ESE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Lewiston.
