Great Falls Weather in April
Average highs run from 60°F on April 1 to 69°F on April 30, and lows from 36°F to 47°F. Normal precipitation for the month is 3.39 in over about 11 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
- 65°F
- Average low
- 41°F
- Precipitation
- 3.39 in
- Record high
- 93°FApr 6, 2010
- Record low
- 17°FApr 1, 1969
- Chance of a freeze
- 85%
- Daylight
- 12 h 39 min to 13 h 49 min
- Cloud cover
- 65%
- Humidity
- 77%
- Dew point
- 45°F
- Wind
- 8.5 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 | 60°F | 36°F | 86°F 2026 | 17°F 1969 | 35% | |
| Apr 2 | 60°F | 36°F | 86°F 1967 | 21°F 1964 | 35% | |
| Apr 3 | 60°F | 37°F | 86°F 1981 | 23°F 1991 | 35% | |
| Apr 4 | 61°F | 37°F | 87°F 2026 | 22°F 1965 | 35% | |
| Apr 5 | 61°F | 37°F | 88°F 2023 | 22°F 1965 | 35% | |
| Apr 6 | 62°F | 38°F | 93°F 2010 | 24°F 1966 | 36% | |
| Apr 7 | 62°F | 38°F | 91°F 2010 | 21°F 1977 | 36% | |
| Apr 8 | 63°F | 38°F | 87°F 1991 | 24°F 1970 | 36% | |
| Apr 9 | 63°F | 39°F | 89°F 2001 | 23°F 1977 | 36% | |
| Apr 10 | 63°F | 39°F | 89°F 2013 | 19°F 1985 | 36% | |
| Apr 11 | 64°F | 39°F | 87°F 1977 | 25°F 1960 | 36% | |
| Apr 12 | 64°F | 40°F | 87°F 1977 | 23°F 1982 | 37% | |
| Apr 13 | 64°F | 40°F | 87°F 1977 | 24°F 1990 | 37% | |
| Apr 14 | 65°F | 41°F | 87°F 1960 | 20°F 1975 | 37% | |
| Apr 15 | 65°F | 41°F | 91°F 2026 | 28°F 1971 | 37% | |
| Apr 16 | 65°F | 41°F | 92°F 2026 | 28°F 1981 | 37% | |
| Apr 17 | 66°F | 42°F | 93°F 2002 | 27°F 1983 | 37% | 0% |
| Apr 18 | 66°F | 42°F | 90°F 1976 | 29°F 2018 | 37% | 0% |
| Apr 19 | 66°F | 42°F | 91°F 2002 | 27°F 1990 | 37% | 0% |
| Apr 20 | 67°F | 43°F | 88°F 1976 | 28°F 1974 | 38% | 0% |
| Apr 21 | 67°F | 43°F | 89°F 1985 | 27°F 2026 | 38% | 0% |
| Apr 22 | 67°F | 44°F | 92°F 1985 | 27°F 1975 | 38% | 0% |
| Apr 23 | 67°F | 44°F | 88°F 2001 | 30°F 1989 | 39% | 0% |
| Apr 24 | 68°F | 44°F | 86°F 2026 | 30°F 1989 | 39% | 0% |
| Apr 25 | 68°F | 45°F | 93°F 1960 | 29°F 1969 | 39% | 0% |
| Apr 26 | 68°F | 45°F | 92°F 1990 | 31°F 1967 | 39% | 0% |
| Apr 27 | 68°F | 46°F | 92°F 1990 | 31°F 1972 | 39% | 0% |
| Apr 28 | 68°F | 46°F | 88°F 1981 | 32°F 1972 | 39% | 0% |
| Apr 29 | 69°F | 46°F | 91°F 2024 | 32°F 1987 | 40% | 0% |
| Apr 30 | 69°F | 47°F | 88°F 2024 | 29°F 1977 | 40% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EDT).
- April 1
- sunrise 6:54 AM, sunset 7:33 PM
- April 30
- sunrise 6:12 AM, sunset 8:01 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00448737 (Vienna), public domain. Records: NOAA GHCN-Daily, station USW00093738, 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.