Mahnomen Weather in August
Average highs run from 81°F on August 1 to 74°F on August 31, and lows from 58°F to 51°F. Normal precipitation for the month is 3.44 in.
August day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
August at a glance
- Average high
- 78°F
- Average low
- 55°F
- Precipitation
- 3.44 in
- Record high
- 103°FAug 19, 1976
- Record low
- 27°FAug 29, 1931
- Chance of a freeze
- 0%
- Days of 90°F or more
- 1.8
- Daylight
- 14 h 55 min to 13 h 24 min
- Cloud cover
- 52%
- Humidity
- 64%
- Dew point
- 54°F
- Wind
- 9.6 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Aug 1 | 81°F | 58°F | 97°F 1989 | 41°F 2025 | |
| Aug 2 | 81°F | 58°F | 98°F 1930 | 40°F 1971 | |
| Aug 3 | 81°F | 58°F | 99°F 1989 | 37°F 1971 | |
| Aug 4 | 80°F | 58°F | 99°F 1989 | 35°F 1929 | |
| Aug 5 | 80°F | 57°F | 97°F 1983 | 39°F 1990 | |
| Aug 6 | 80°F | 57°F | 96°F 1983 | 38°F 1989 | |
| Aug 7 | 80°F | 57°F | 101°F 1983 | 38°F 1989 | |
| Aug 8 | 80°F | 57°F | 100°F 1983 | 37°F 1927 | |
| Aug 9 | 80°F | 57°F | 96°F 1929 | 36°F 1930 | |
| Aug 10 | 80°F | 57°F | 93°F 1988 | 39°F 1931 | |
| Aug 11 | 80°F | 56°F | 91°F 1969 | 37°F 1990 | |
| Aug 12 | 79°F | 56°F | 93°F 1978 | 35°F 1961 | |
| Aug 13 | 79°F | 56°F | 95°F 1965 | 32°F 1964 | |
| Aug 14 | 79°F | 56°F | 97°F 1961 | 31°F 1968 | |
| Aug 15 | 79°F | 56°F | 93°F 1961 | 38°F 1979 | |
| Aug 16 | 79°F | 55°F | 100°F 1988 | 37°F 1933 | |
| Aug 17 | 78°F | 55°F | 98°F 1988 | 38°F 1963 | |
| Aug 18 | 78°F | 55°F | 102°F 1976 | 38°F 1975 | |
| Aug 19 | 78°F | 55°F | 103°F 1976 | 40°F 1961 | |
| Aug 20 | 78°F | 54°F | 100°F 1976 | 41°F 1928 | |
| Aug 21 | 77°F | 54°F | 93°F 1976 | 38°F 1986 | |
| Aug 22 | 77°F | 54°F | 89°F 1976 | 28°F 1927 | |
| Aug 23 | 77°F | 53°F | 92°F 1970 | 32°F 1928 | |
| Aug 24 | 76°F | 53°F | 98°F 1976 | 37°F 2025 | |
| Aug 25 | 76°F | 53°F | 94°F 1976 | 38°F 2025 | |
| Aug 26 | 76°F | 53°F | 94°F 1991 | 37°F 1992 | |
| Aug 27 | 75°F | 52°F | 95°F 1991 | 31°F 1982 | |
| Aug 28 | 75°F | 52°F | 94°F 1984 | 33°F 1965 | |
| Aug 29 | 75°F | 52°F | 93°F 1969 | 27°F 1931 | |
| Aug 30 | 74°F | 52°F | 95°F 1929 | 38°F 1928 | |
| Aug 31 | 74°F | 51°F | 91°F 1990 | 35°F 1987 |
Chance of rain
Sunrise and sunset
Times for 2026, local time (CDT).
- August 1
- sunrise 6:02 AM, sunset 8:57 PM
- August 31
- sunrise 6:42 AM, sunset 8:06 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00215012 (Mahnomen), public domain. Records: NOAA GHCN-Daily, station USC00215012, 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.