Lewistown Weather in June
Average highs run from 67°F on June 1 to 76°F on June 30, and lows from 43°F to 48°F. Normal precipitation for the month is 3.35 in over about 14 wet days.
June day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
June at a glance
- Average high
- 71°F
- Average low
- 45°F
- Precipitation
- 3.35 in
- Snowfall
- 0.2 in
- Record high
- 105°FJun 21, 1900
- Record low
- 23°FJun 13, 1969
- Chance of a freeze
- 24%
- Days of 90°F or more
- 0.5
- Daylight
- 15 h 40 min to 15 h 51 min
- Cloud cover
- 61%
- Humidity
- 61%
- Dew point
- 43°F
- Wind
- 9.6 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Jun 1 | 67°F | 43°F | 86°F 1956 | 27°F 1928 | 48% | 2% |
| Jun 2 | 67°F | 43°F | 89°F 1909 | 30°F 1916 | 48% | 2% |
| Jun 3 | 68°F | 43°F | 89°F 1988 | 25°F 1910 | 48% | 2% |
| Jun 4 | 68°F | 43°F | 95°F 1988 | 27°F 1930 | 48% | 1% |
| Jun 5 | 68°F | 43°F | 91°F 1988 | 28°F 1901 | 48% | 1% |
| Jun 6 | 68°F | 44°F | 86°F 1919 | 29°F 1901 | 48% | 1% |
| Jun 7 | 68°F | 44°F | 92°F 1988 | 29°F 1930 | 48% | 1% |
| Jun 8 | 69°F | 44°F | 90°F 2017 | 28°F 2009 | 48% | 1% |
| Jun 9 | 69°F | 44°F | 92°F 1918 | 31°F 1950 | 47% | 1% |
| Jun 10 | 69°F | 44°F | 97°F 1918 | 29°F 1928 | 47% | 1% |
| Jun 11 | 69°F | 44°F | 95°F 1918 | 27°F 1969 | 47% | 1% |
| Jun 12 | 70°F | 45°F | 95°F 1918 | 29°F 1969 | 47% | 1% |
| Jun 13 | 70°F | 45°F | 93°F 1918 | 23°F 1969 | 47% | 1% |
| Jun 14 | 70°F | 45°F | 97°F 1918 | 27°F 1969 | 46% | 1% |
| Jun 15 | 71°F | 45°F | 97°F 2021 | 33°F 1945 | 46% | 0% |
| Jun 16 | 71°F | 45°F | 97°F 1931 | 31°F 1902 | 46% | 0% |
| Jun 17 | 71°F | 45°F | 92°F 1930 | 29°F 1928 | 45% | 0% |
| Jun 18 | 71°F | 46°F | 93°F 1900 | 28°F 1949 | 45% | 0% |
| Jun 19 | 72°F | 46°F | 92°F 1900 | 34°F 1978 | 45% | 0% |
| Jun 20 | 72°F | 46°F | 96°F 1900 | 27°F 1929 | 44% | 0% |
| Jun 21 | 73°F | 46°F | 105°F 1900 | 32°F 1905 | 44% | 0% |
| Jun 22 | 73°F | 46°F | 98°F 1919 | 33°F 1942 | 43% | 0% |
| Jun 23 | 73°F | 46°F | 97°F 1936 | 32°F 1905 | 43% | 0% |
| Jun 24 | 74°F | 47°F | 93°F 1900 | 33°F 1905 | 43% | 0% |
| Jun 25 | 74°F | 47°F | 93°F 1910 | 32°F 1904 | 42% | 0% |
| Jun 26 | 74°F | 47°F | 99°F 1919 | 33°F 1989 | 42% | 0% |
| Jun 27 | 75°F | 47°F | 99°F 1936 | 33°F 1902 | 41% | 0% |
| Jun 28 | 75°F | 47°F | 96°F 1919 | 32°F 1911 | 41% | 0% |
| Jun 29 | 76°F | 47°F | 96°F 1984 | 31°F 1947 | 41% | 0% |
| Jun 30 | 76°F | 48°F | 98°F 1990 | 35°F 1988 | 40% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MDT).
- June 1
- sunrise 5:26 AM, sunset 9:06 PM
- June 30
- sunrise 5:26 AM, sunset 9:17 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00024036 (Lewistown Muni AP), public domain. Records: NOAA GHCN-Daily, station USW00024036, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.