Climate Lewiston - Idaho
| JanJa | FebFe | MarMa | AprAp | MayMa | JunJu | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 42 | 47 | 55 | 62 | 71 | 78 |
| Average low in ºF Av. low Lo | 30 | 31 | 36 | 40 | 47 | 53 |
| Av. precipitation in inch Av. precip. Pre. | 1.08 | 0.78 | 1.15 | 1.32 | 1.61 | 1.24 |
| Av. snowfall in inch Snowfall Sn | 2 | 2 | 1 | 0 | 0 | 0 |
| JulJu | AugAu | SepSe | OctOc | NovNo | DecDe | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 89 | 89 | 78 | 63 | 48 | 40 |
| Average low in ºF Av. low Lo | 60 | 59 | 51 | 41 | 34 | 28 |
| Av. precipitation in inch Av. precip. Pre. | 0.66 | 0.69 | 0.67 | 0.96 | 1.18 | 0.97 |
| Av. snowfall in inch Snowfall Sn | 0 | 0 | 0 | 0 | 2 | 4 |
What is the average weather in Lewiston, Idaho?
Lewiston experiences a cold semi-arid climate, characterized by hot summers and cold winters with strong seasonal contrast. The area is generally dry, receiving low annual precipitation that is somewhat wetter in spring. Summers are the driest season, while spring sees the most moisture. Winters bring regular snowfall.
Lewiston Climate Graph - Idaho Climate Chart
Daily normals Lewiston - Idaho - January
Day | High ºF | Low ºF | Prec/mo inch | Prec/yr inch | Snow/mo inch | Snow/yr inch |
|---|---|---|---|---|---|---|
| 1 Jan | 40.3 | 29.0 | 0.04 | 0.04 | 0.10 | 0.10 |
| 2 Jan | 40.4 | 29.1 | 0.07 | 0.07 | 0.20 | 0.20 |
| 3 Jan | 40.5 | 29.2 | 0.11 | 0.11 | 0.30 | 0.30 |
| 4 Jan | 40.6 | 29.3 | 0.15 | 0.15 | 0.50 | 0.50 |
| 5 Jan | 40.7 | 29.4 | 0.18 | 0.18 | 0.60 | 0.60 |
| 6 Jan | 40.8 | 29.5 | 0.22 | 0.22 | 0.70 | 0.70 |
| 7 Jan | 40.9 | 29.6 | 0.26 | 0.26 | 0.80 | 0.80 |
| 8 Jan | 41.1 | 29.7 | 0.29 | 0.29 | 0.90 | 0.90 |
| 9 Jan | 41.2 | 29.8 | 0.33 | 0.33 | 0.90 | 0.90 |
| 10 Jan | 41.3 | 29.9 | 0.37 | 0.37 | 1.00 | 1.00 |
| 11 Jan | 41.4 | 30.0 | 0.40 | 0.40 | 1.10 | 1.10 |
| 12 Jan | 41.6 | 30.1 | 0.44 | 0.44 | 1.20 | 1.20 |
| 13 Jan | 41.7 | 30.2 | 0.47 | 0.47 | 1.30 | 1.30 |
| 14 Jan | 41.8 | 30.3 | 0.51 | 0.51 | 1.40 | 1.40 |
| 15 Jan | 42.0 | 30.3 | 0.54 | 0.54 | 1.50 | 1.50 |
| 16 Jan | 42.1 | 30.4 | 0.57 | 0.57 | 1.50 | 1.50 |
| 17 Jan | 42.2 | 30.5 | 0.61 | 0.61 | 1.60 | 1.60 |
| 18 Jan | 42.3 | 30.6 | 0.64 | 0.64 | 1.70 | 1.70 |
| 19 Jan | 42.5 | 30.7 | 0.68 | 0.68 | 1.80 | 1.80 |
| 20 Jan | 42.6 | 30.7 | 0.71 | 0.71 | 1.80 | 1.80 |
| 21 Jan | 42.7 | 30.8 | 0.75 | 0.75 | 1.90 | 1.90 |
| 22 Jan | 42.9 | 30.9 | 0.79 | 0.79 | 2.00 | 2.00 |
| 23 Jan | 43.0 | 30.9 | 0.82 | 0.82 | 2.10 | 2.10 |
| 24 Jan | 43.1 | 31.0 | 0.86 | 0.86 | 2.10 | 2.10 |
| 25 Jan | 43.2 | 31.0 | 0.90 | 0.90 | 2.20 | 2.20 |
| 26 Jan | 43.4 | 31.0 | 0.94 | 0.94 | 2.30 | 2.30 |
| 27 Jan | 43.5 | 31.1 | 0.98 | 0.98 | 2.40 | 2.40 |
| 28 Jan | 43.6 | 31.1 | 1.02 | 1.02 | 2.50 | 2.50 |
| 29 Jan | 43.8 | 31.1 | 1.05 | 1.05 | 2.50 | 2.50 |
| 30 Jan | 43.9 | 31.2 | 1.09 | 1.09 | 2.60 | 2.60 |
| 31 Jan | 44.0 | 31.2 | 1.13 | 1.13 | 2.70 | 2.70 |
Weather history Lewiston - August 2026
| Day | High ºF | Low ºF | Precip. inch | Snow inch | Snow d. inch |
|---|---|---|---|---|---|
| 01 Aug | 93.0 | 66.9 | 0.00 | 0.00 | 0.0 |
| 02 Aug | 80.1 | 57.9 | 0.00 | 0.00 | 0.0 |
| 03 Aug | 81.0 | 54.0 | 0.00 | 0.00 | 0.0 |
| 04 Aug | 88.0 | 54.0 | 0.00 | 0.00 | 0.0 |
| 05 Aug | 95.0 | 57.0 | 0.00 | 0.00 | 0.0 |
| 06 Aug | 98.1 | 59.0 | 0.00 | 0.00 | 0.0 |
| 07 Aug | 99.0 | 62.1 | 0.00 | 0.00 | 0.0 |
| 08 Aug | 96.1 | 62.1 | 0.00 | 0.00 | 0.0 |
| 09 Aug | 93.0 | 60.1 | 0.00 | 0.00 | 0.0 |
| 10 Aug | 91.0 | 57.9 | 0.00 | 0.00 | 0.0 |
| 11 Aug | - | - | - | - | - |
| 12 Aug | - | - | - | - | - |
| 13 Aug | - | - | - | - | - |
| 14 Aug | - | - | - | - | - |
| 15 Aug | - | - | - | - | - |
| 16 Aug | - | - | - | - | - |
| 17 Aug | - | - | - | - | - |
| 18 Aug | - | - | - | - | - |
| 19 Aug | - | - | - | - | - |
| 20 Aug | - | - | - | - | - |
| 21 Aug | - | - | - | - | - |
| 22 Aug | - | - | - | - | - |
| 23 Aug | - | - | - | - | - |
| 24 Aug | - | - | - | - | - |
| 25 Aug | - | - | - | - | - |
| 26 Aug | - | - | - | - | - |
| 27 Aug | - | - | - | - | - |
| 28 Aug | - | - | - | - | - |
| 29 Aug | - | - | - | - | - |
| 30 Aug | - | - | - | - | - |
| 31 Aug | - | - | - | - | - |
Past weather Lewiston
| Aug 26 | Normal | ||
|---|---|---|---|
| Average high temperature Av. high temp. | 91.4 ºF | 42 ºF | |
| Average low temperature Av. low temp. | 59.1 ºF | 30 ºF | |
| Total precipitation Total precip. | 0.00 inch | 1.08 inch | |
| Total snowfall Total snowfall | 0.00 inch | 2 inch | |
| Highest max temperature Highest max temp. | 99.0 ºF | - | |
| Lowest max temperature Lowest max temp. | 80.1 ºF | - | |
| Highest min temperature Highest min temp. | 66.9 ºF | - | |
| Lowest min temperature Lowest min temp. | 54.0 ºF | - | |
Past weather August 2026 incomplete - Missing data
Geo Lewiston - Idaho
| Country | United States | |
|---|---|---|
| State | Idaho | |
| County | Nez Perce | |
| City | Lewiston | |
| Zip Code | 83501 | |
| Longitude | -117.02 dec. degr. | |
| Latitude | 46.37 dec. degr. | |
| Altitude - Elevation | 1430ft | |
| ICAO | - | |
| IATA | - |
Date and Time Lewiston - Idaho
| Local Time | 11:34 AM | |
|---|---|---|
| Sunrise | 05:43 AM | |
| Sunset | 08:02 PM | |
| Day/Night | Day | |
| Timezone | Pacific Daylight Time | |
| Timezone DB | America - Los Angeles |
Map of Lewiston - Idaho
USGS National Map — Open interactive map
Lewiston weather averages
| Annual high temperature | 63ºF |
| Annual low temperature | 42ºF |
| Average annual precip. | 12.31 inch |
| Av. annual snowfall | 11 inch |
Station Data
Monthly averages Lewiston
Longitude: -117.015, Latitude: 46.3745
Average weather Lewiston, ID - 83501
Monthly: 1991-2020 normals
History: 2007-2026
Abbreviations
Average precipitation in : Av. precipitation in
Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ...