Libby Weather in May
Average highs run from 67°F on May 1 to 77°F on May 31, and lows from 34°F to 43°F. Normal precipitation for the month is 1.66 in over about 10 wet days.
May day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
May at a glance
- Average high
- 73°F
- Average low
- 39°F
- Precipitation
- 1.66 in
- Record high
- 96°FMay 29, 2026
- Record low
- 17°FMay 1, 1954
- Chance of a freeze
- 96%
- Days of 90°F or more
- 1.1
- Daylight
- 14 h 34 min to 15 h 49 min
- Cloud cover
- 69%
- Humidity
- 74%
- Dew point
- 39°F
- Wind
- 4.0 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 |
|---|---|---|---|---|---|---|
| May 1 | 67°F | 34°F | 86°F 2023 | 17°F 1954 | 31% | 0% |
| May 2 | 68°F | 35°F | 83°F 1998 | 22°F 1954 | 31% | 0% |
| May 3 | 68°F | 35°F | 88°F 2023 | 29°F 1910 | 31% | 0% |
| May 4 | 68°F | 35°F | 84°F 2016 | 21°F 1949 | 31% | 0% |
| May 5 | 69°F | 35°F | 87°F 1980 | 28°F 1913 | 31% | 0% |
| May 6 | 69°F | 36°F | 89°F 1992 | 27°F 1959 | 31% | 0% |
| May 7 | 70°F | 36°F | 88°F 1947 | 26°F 1911 | 31% | 0% |
| May 8 | 70°F | 36°F | 87°F 1987 | 26°F 2002 | 31% | 0% |
| May 9 | 70°F | 37°F | 89°F 1987 | 26°F 1955 | 32% | 0% |
| May 10 | 71°F | 37°F | 89°F 1949 | 24°F 1974 | 32% | 0% |
| May 11 | 71°F | 37°F | 90°F 1993 | 27°F 1959 | 32% | 0% |
| May 12 | 72°F | 38°F | 90°F 1993 | 25°F 1985 | 32% | 0% |
| May 13 | 72°F | 38°F | 90°F 1993 | 26°F 1985 | 32% | 0% |
| May 14 | 72°F | 38°F | 88°F 1949 | 27°F 1964 | 33% | 0% |
| May 15 | 73°F | 38°F | 90°F 1939 | 29°F 2002 | 33% | 0% |
| May 16 | 73°F | 39°F | 89°F 2006 | 29°F 1942 | 33% | 0% |
| May 17 | 73°F | 39°F | 90°F 2006 | 28°F 1966 | 34% | 0% |
| May 18 | 74°F | 39°F | 92°F 2006 | 28°F 1966 | 34% | 0% |
| May 19 | 74°F | 40°F | 87°F 1954 | 31°F 1908 | 35% | 0% |
| May 20 | 74°F | 40°F | 87°F 1958 | 30°F 1911 | 35% | 0% |
| May 21 | 75°F | 40°F | 88°F 1958 | 30°F 1953 | 35% | 0% |
| May 22 | 75°F | 41°F | 91°F 1988 | 29°F 1911 | 35% | 0% |
| May 23 | 75°F | 41°F | 94°F 2001 | 28°F 1960 | 36% | 0% |
| May 24 | 75°F | 41°F | 90°F 1910 | 33°F 1950 | 36% | 0% |
| May 25 | 76°F | 42°F | 89°F 1986 | 26°F 1964 | 36% | 0% |
| May 26 | 76°F | 42°F | 94°F 1986 | 29°F 1944 | 36% | 0% |
| May 27 | 76°F | 42°F | 91°F 1986 | 32°F 2007 | 37% | 0% |
| May 28 | 76°F | 42°F | 94°F 1986 | 30°F 1914 | 37% | 0% |
| May 29 | 76°F | 43°F | 96°F 2026 | 30°F 1951 | 37% | 0% |
| May 30 | 77°F | 43°F | 91°F 1986 | 32°F 1915 | 37% | 0% |
| May 31 | 77°F | 43°F | 95°F 1986 | 31°F 1951 | 37% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MDT).
- May 1
- sunrise 6:23 AM, sunset 8:57 PM
- May 31
- sunrise 5:46 AM, sunset 9:35 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00245015 (Libby 1 Ne RS), public domain. Records: NOAA GHCN-Daily, station USC00101079, 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 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.