Lewistown Weather in March
Average highs run from 39°F on March 1 to 49°F on March 31, and lows from 16°F to 26°F. Normal precipitation for the month is 0.87 in over about 9 wet days.
March day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
March at a glance
- Average high
- 44°F
- Average low
- 21°F
- Precipitation
- 0.87 in
- Snowfall
- 19.5 in
- Record high
- 77°FMar 20, 1910
- Record low
- -34°FMar 3, 2019
- Chance of a freeze
- 100%
- Daylight
- 11 h 06 min to 12 h 48 min
- Cloud cover
- 71%
- Humidity
- 70%
- Dew point
- 22°F
- Wind
- 11.4 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 |
|---|---|---|---|---|---|---|
| Mar 1 | 39°F | 16°F | 66°F 1905 | -19°F 2014 | 28% | 22% |
| Mar 2 | 39°F | 17°F | 71°F 1905 | -30°F 2019 | 28% | 22% |
| Mar 3 | 39°F | 17°F | 72°F 1921 | -34°F 2019 | 28% | 22% |
| Mar 4 | 40°F | 17°F | 69°F 1987 | -26°F 1945 | 28% | 22% |
| Mar 5 | 40°F | 18°F | 70°F 1987 | -28°F 1945 | 28% | 22% |
| Mar 6 | 41°F | 18°F | 71°F 2016 | -28°F 1951 | 28% | 22% |
| Mar 7 | 41°F | 18°F | 60°F 1986 | -28°F 1951 | 28% | 22% |
| Mar 8 | 41°F | 19°F | 65°F 2026 | -28°F 1951 | 29% | 22% |
| Mar 9 | 42°F | 19°F | 64°F 1983 | -22°F 1932 | 29% | 22% |
| Mar 10 | 42°F | 19°F | 72°F 1983 | -22°F 1948 | 29% | 21% |
| Mar 11 | 43°F | 20°F | 71°F 1983 | -21°F 1932 | 29% | 21% |
| Mar 12 | 43°F | 20°F | 70°F 2007 | -20°F 1897 | 29% | 21% |
| Mar 13 | 43°F | 21°F | 66°F 1916 | -26°F 1897 | 29% | 21% |
| Mar 14 | 44°F | 21°F | 74°F 1910 | -17°F 1967 | 30% | 21% |
| Mar 15 | 44°F | 21°F | 67°F 1910 | -25°F 1906 | 30% | 21% |
| Mar 16 | 45°F | 22°F | 69°F 1910 | -19°F 1943 | 30% | 21% |
| Mar 17 | 45°F | 22°F | 68°F 2007 | -18°F 1943 | 30% | 21% |
| Mar 18 | 45°F | 22°F | 75°F 2017 | -17°F 1913 | 31% | 21% |
| Mar 19 | 46°F | 23°F | 71°F 2026 | -20°F 1913 | 31% | 21% |
| Mar 20 | 46°F | 23°F | 77°F 1910 | -11°F 1913 | 31% | 21% |
| Mar 21 | 46°F | 23°F | 75°F 1928 | -21°F 2002 | 32% | 21% |
| Mar 22 | 47°F | 24°F | 75°F 1928 | -19°F 1898 | 32% | 21% |
| Mar 23 | 47°F | 24°F | 74°F 1939 | -20°F 1913 | 32% | 21% |
| Mar 24 | 47°F | 24°F | 71°F 1939 | -27°F 1965 | 32% | 21% |
| Mar 25 | 48°F | 25°F | 73°F 1999 | -20°F 1996 | 33% | 21% |
| Mar 26 | 48°F | 25°F | 72°F 1960 | -13°F 1904 | 33% | 21% |
| Mar 27 | 48°F | 25°F | 73°F 2015 | -10°F 1965 | 33% | 21% |
| Mar 28 | 48°F | 25°F | 72°F 1953 | -11°F 1987 | 33% | 21% |
| Mar 29 | 49°F | 26°F | 70°F 1943 | -17°F 1987 | 34% | 21% |
| Mar 30 | 49°F | 26°F | 76°F 2004 | -20°F 1936 | 34% | 21% |
| Mar 31 | 49°F | 26°F | 75°F 2015 | -11°F 1936 | 34% | 21% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MDT).
- March 1
- sunrise 6:57 AM, sunset 6:03 PM
- March 31
- sunrise 6:58 AM, sunset 7:46 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.