Lewistown Weather in April
Average highs run from 49°F on April 1 to 57°F on April 30, and lows from 26°F to 32°F. Normal precipitation for the month is 1.71 in over about 12 wet days.
April day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
April at a glance
- Average high
- 53°F
- Average low
- 29°F
- Precipitation
- 1.71 in
- Snowfall
- 17.2 in
- Record high
- 89°FApr 29, 1939
- Record low
- -17°FApr 2, 1936
- Chance of a freeze
- 100%
- Daylight
- 12 h 51 min to 14 h 24 min
- Cloud cover
- 70%
- Humidity
- 66%
- Dew point
- 27°F
- Wind
- 11.0 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 |
|---|---|---|---|---|---|---|
| Apr 1 | 49°F | 26°F | 71°F 1991 | -12°F 1908 | 35% | 21% |
| Apr 2 | 50°F | 26°F | 74°F 1921 | -17°F 1936 | 35% | 20% |
| Apr 3 | 50°F | 27°F | 73°F 1992 | -8°F 2018 | 35% | 20% |
| Apr 4 | 50°F | 27°F | 72°F 2016 | 8°F 1935 | 35% | 20% |
| Apr 5 | 50°F | 27°F | 74°F 1969 | -8°F 1936 | 36% | 20% |
| Apr 6 | 51°F | 27°F | 80°F 1930 | 1°F 1975 | 36% | 20% |
| Apr 7 | 51°F | 27°F | 82°F 1930 | 6°F 1926 | 36% | 19% |
| Apr 8 | 51°F | 28°F | 78°F 2022 | -5°F 1982 | 36% | 19% |
| Apr 9 | 51°F | 28°F | 81°F 1910 | 3°F 1921 | 37% | 19% |
| Apr 10 | 52°F | 28°F | 77°F 1898 | -1°F 1995 | 37% | 19% |
| Apr 11 | 52°F | 28°F | 80°F 1925 | -11°F 1940 | 37% | 19% |
| Apr 12 | 52°F | 28°F | 78°F 1976 | 0°F 1997 | 37% | 18% |
| Apr 13 | 52°F | 28°F | 82°F 1908 | 2°F 1928 | 38% | 18% |
| Apr 14 | 52°F | 28°F | 82°F 1915 | 0°F 1986 | 38% | 18% |
| Apr 15 | 53°F | 29°F | 81°F 1913 | -11°F 1896 | 38% | 18% |
| Apr 16 | 53°F | 29°F | 80°F 1926 | -9°F 1896 | 38% | 17% |
| Apr 17 | 53°F | 29°F | 81°F 1923 | 4°F 1896 | 38% | 17% |
| Apr 18 | 53°F | 29°F | 81°F 1936 | 5°F 1951 | 39% | 17% |
| Apr 19 | 54°F | 29°F | 86°F 1910 | 3°F 1941 | 39% | 16% |
| Apr 20 | 54°F | 30°F | 84°F 1908 | 0°F 1927 | 39% | 16% |
| Apr 21 | 54°F | 30°F | 82°F 1906 | 0°F 2008 | 39% | 15% |
| Apr 22 | 55°F | 30°F | 86°F 1906 | 1°F 1967 | 39% | 15% |
| Apr 23 | 55°F | 30°F | 83°F 2012 | 13°F 1931 | 39% | 15% |
| Apr 24 | 55°F | 30°F | 84°F 1910 | 17°F 1958 | 40% | 14% |
| Apr 25 | 56°F | 31°F | 83°F 1952 | 9°F 1960 | 40% | 14% |
| Apr 26 | 56°F | 31°F | 86°F 1910 | 17°F 1929 | 40% | 14% |
| Apr 27 | 56°F | 31°F | 82°F 1928 | 15°F 1994 | 40% | 13% |
| Apr 28 | 57°F | 31°F | 86°F 1939 | 9°F 1907 | 41% | 13% |
| Apr 29 | 57°F | 32°F | 89°F 1939 | 10°F 2019 | 41% | 12% |
| Apr 30 | 57°F | 32°F | 83°F 1926 | 5°F 1909 | 41% | 12% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MDT).
- April 1
- sunrise 6:56 AM, sunset 7:47 PM
- April 30
- sunrise 6:03 AM, sunset 8:27 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.