Lewiston weather in June: Lewiston, Idaho: normal highs, lows, rain and records for June
Lewiston in June has a normal high of 79°F and a normal low of 54°F, a daily mean of 67°F, rising from 75°F on the 1st to 85°F by the 30th. Measurable precipitation falls on 9 days in a normal June, 1.25 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 26°C and low of 12°C, 32 mm of precipitation in June.
- NOAA stationLewiston Airport
- Station IDUSW00024149
- Location46.37°N 117.02°W
- Elevation1,436 ft (438 m)
- Population34,693
- Jan 42° 30°
- Feb 47° 32°
- Mar 55° 36°
- Apr 62° 41°
- May 72° 48°
- Jun 79° 54°
- Jul 91° 61°
- Aug 90° 60°
- Sep 80° 52°
- Oct 63° 42°
- Nov 49° 35°
- Dec 41° 30°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Lewiston in June?
The normal high is 79°F and the normal low 54°F, for a daily mean of 66.5°F. June is 6.5°F warmer than May and 9.3°F cooler than July. June is the 3rd warmest month of the year in Lewiston and the 4th wettest. Across the month the normal high rises 10°F, from 75°F on June 1 to 85°F on June 30. From one year to the next June's mean temperature typically moves about 2.6°F either way (NOAA's standard deviation), so roughly two Junes in three average between 64°F and 69°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 33%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| June 1 | 75°F | 52°F | 33% | 17% |
| June 8 | 77°F | 53°F | 32% | 16% |
| June 15 | 78°F | 54°F | 29% | 13% |
| June 22 | 81°F | 55°F | 25% | 11% |
| June 30 | 85°F | 57°F | 22% | 9% |
Every day of June: normal high, low and chance of precipitation (warmest afternoon June 30, coldest night June 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| June 1 | 75°F | 52°F | 33% | 17% | 15 h 30 min |
| June 2 | 76°F | 52°F | 33% | 17% | 15 h 30 min |
| June 3 | 76°F | 52°F | 33% | 17% | 15 h 30 min |
| June 4 | 76°F | 52°F | 33% | 17% | 15 h 40 min |
| June 5 | 76°F | 52°F | 33% | 16% | 15 h 40 min |
| June 6 | 76°F | 52°F | 32% | 16% | 15 h 40 min |
| June 7 | 76°F | 53°F | 32% | 16% | 15 h 40 min |
| June 8 | 77°F | 53°F | 32% | 16% | 15 h 40 min |
| June 9 | 77°F | 53°F | 31% | 15% | 15 h 40 min |
| June 10 | 77°F | 53°F | 31% | 15% | 15 h 40 min |
| June 11 | 77°F | 53°F | 31% | 15% | 15 h 40 min |
| June 12 | 78°F | 53°F | 30% | 14% | 15 h 40 min |
| June 13 | 78°F | 53°F | 30% | 14% | 15 h 50 min |
| June 14 | 78°F | 54°F | 29% | 14% | 15 h 50 min |
| June 15 | 78°F | 54°F | 29% | 13% | 15 h 50 min |
| June 16 | 79°F | 54°F | 28% | 13% | 15 h 50 min |
| June 17 | 79°F | 54°F | 28% | 13% | 15 h 50 min |
| June 18 | 79°F | 54°F | 27% | 13% | 15 h 50 min |
| June 19 | 80°F | 54°F | 27% | 12% | 15 h 50 min |
| June 20 | 80°F | 55°F | 26% | 12% | 15 h 50 min |
| June 21 | 80°F | 55°F | 26% | 12% | 15 h 50 min |
| June 22 | 81°F | 55°F | 25% | 11% | 15 h 50 min |
| June 23 | 81°F | 55°F | 25% | 11% | 15 h 50 min |
| June 24 | 82°F | 56°F | 24% | 11% | 15 h 50 min |
| June 25 | 82°F | 56°F | 24% | 10% | 15 h 50 min |
| June 26 | 83°F | 56°F | 24% | 10% | 15 h 50 min |
| June 27 | 83°F | 56°F | 23% | 10% | 15 h 50 min |
| June 28 | 84°F | 57°F | 23% | 9% | 15 h 50 min |
| June 29 | 84°F | 57°F | 22% | 9% | 15 h 50 min |
| June 30 | 85°F | 57°F | 22% | 9% | 15 h 50 min |
- Normal high
- 79°FJune average
- Normal low
- 54°FJune average
- Precipitation
- 1.25 inmonth total
- Days with precipitation
- 90.01 inch or more
- Days at 90°F or more
- 4
- Daylight
- 15 h 30 min to 15 h 50 minJune 1 to June 30
- Days at 70°F or more
- 24
- Days at 80°F or more
- 14
- Sunshine
- 78%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00024149; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Lewiston in June?
On a given June day the chance of 0.01 inch or more is 28% on average, highest around June 1 (33%). In all, 1.25 in falls on 9 days of a normal June.
In a normal June in Lewiston, 4 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00024149.
How humid and windy is Lewiston in June?
At 3 p.m. the normal temperature is 83°F with 26% relative humidity and a dew point of 45°F; at 6 a.m. it is 62°F with 62% humidity. The wind averages 5.5 mph, most often from the north-northwest in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 62°F | 49°F | 62% | 4.0 mph | 81% |
| 9 a.m. | 71°F | 49°F | 45% | 4.9 mph | 80% |
| noon | 80°F | 47°F | 31% | 6.4 mph | 80% |
| 3 p.m. | 83°F | 45°F | 26% | 8.1 mph | 79% |
| 6 p.m. | 81°F | 45°F | 28% | 8.9 mph | 82% |
| 9 p.m. | 72°F | 47°F | 41% | 5.4 mph | 82% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00024149. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for June in Lewiston?
The warmest June temperature on Lewiston's official record (since 1881) is 115°F, on June 29, 2021; the coldest is 34°F, on June 1, 1951. The wettest June brought 5.67 in (1884).
The June mean against the 1991-2020 normal of 66.5°F: 2021 75.8°F (+9.3), 2022 66.6°F (+0.1), 2023 71.3°F (+4.8), 2024 69.0°F (+2.5), 2025 71.1°F (+4.6), 2026 67.0°F (+0.5). 6 of 6 ran warmer than normal.
| June | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 75.8°F | +9.3°F | 0.41 in |
| 2022 | 66.6°F | +0.1°F | 3.18 in |
| 2023 | 71.3°F | +4.8°F | 1.01 in |
| 2024 | 69.0°F | +2.5°F | 0.66 in |
| 2025 | 71.1°F | +4.6°F | 0.08 in |
| 2026 | 67.0°F | +0.5°F | 0.53 in |
Source: records: ACIS, NWS threaded record LWSthr; recent months: ACIS, station USW00024149. Records and recent months use complete months only.
How does June in Lewiston compare across Idaho?
Across the 85 places PlainClimate covers in Idaho, June normal highs run from 58°F in Mullan to 88°F in Glenns Ferry; Lewiston's is 79°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.