Lethbridge Weather in August
Average highs run from 27°C on August 1 to 24°C on August 31, and lows from 13°C to 9°C. Normal precipitation for the month is 40 mm over about 9 wet days.
August day by day
The normal high and low for each date, in °C.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
August at a glance
- Average high
- 26°C
- Average low
- 11°C
- Precipitation
- 40 mm
- Reanalysis high
- 38°CAug 10, 2018
- Reanalysis low
- -6°CAug 24, 1992
- Daylight
- 15 h 10 min to 13 h 30 min
- Cloud cover
- 54%
- Humidity
- 53%
- Dew point
- 7°C
- Wind
- 12.2 km/h
Every day of the month
A wet day has at least 1 mm of precipitation in the reanalysis.
| Date | Normal high | Normal low | Reanalysis high | Reanalysis low | Chance wet |
|---|---|---|---|---|---|
| Aug 1 | 27°C | 13°C | 35°C 2003 | 5°C 2002 | 26% |
| Aug 2 | 27°C | 13°C | 34°C 2003 | 5°C 2002 | 26% |
| Aug 3 | 27°C | 13°C | 36°C 2001 | 5°C 2002 | 27% |
| Aug 4 | 27°C | 13°C | 33°C 1997 | 7°C 2002 | 28% |
| Aug 5 | 27°C | 12°C | 33°C 1998 | 7°C 2006 | 30% |
| Aug 6 | 27°C | 12°C | 33°C 2001 | 9°C 1996 | 30% |
| Aug 7 | 27°C | 12°C | 34°C 2001 | 7°C 2002 | 32% |
| Aug 8 | 26°C | 12°C | 34°C 2006 | 7°C 1997 | 32% |
| Aug 9 | 26°C | 12°C | 35°C 2018 | 6°C 1997 | 33% |
| Aug 10 | 26°C | 12°C | 38°C 2018 | 4°C 1997 | 32% |
| Aug 11 | 26°C | 12°C | 33°C 2003 | 6°C 1993 | 31% |
| Aug 12 | 26°C | 12°C | 34°C 2015 | 6°C 1993 | 30% |
| Aug 13 | 26°C | 12°C | 35°C 2015 | 4°C 2005 | 29% |
| Aug 14 | 26°C | 12°C | 35°C 1994 | 8°C 2005 | 28% |
| Aug 15 | 26°C | 12°C | 32°C 2003 | 6°C 2009 | 28% |
| Aug 16 | 26°C | 11°C | 32°C 2008 | 4°C 2002 | 28% |
| Aug 17 | 26°C | 11°C | 34°C 2001 | 5°C 2002 | 29% |
| Aug 18 | 26°C | 11°C | 36°C 2008 | 4°C 2005 | 28% |
| Aug 19 | 26°C | 11°C | 32°C 2003 | 5°C 2005 | 26% |
| Aug 20 | 25°C | 11°C | 32°C 2012 | 7°C 1995 | 24% |
| Aug 21 | 25°C | 11°C | 33°C 2009 | 1°C 1992 | 23% |
| Aug 22 | 25°C | 11°C | 31°C 2018 | -1°C 1992 | 22% |
| Aug 23 | 25°C | 11°C | 32°C 1999 | -5°C 1992 | 21% |
| Aug 24 | 25°C | 11°C | 32°C 1999 | -6°C 1992 | 21% |
| Aug 25 | 25°C | 10°C | 31°C 1996 | 1°C 1992 | 21% |
| Aug 26 | 25°C | 10°C | 33°C 2003 | 4°C 1993 | 20% |
| Aug 27 | 25°C | 10°C | 33°C 2001 | 6°C 2018 | 21% |
| Aug 28 | 24°C | 10°C | 32°C 2012 | 4°C 2007 | 22% |
| Aug 29 | 24°C | 10°C | 33°C 1998 | 2°C 2010 | 22% |
| Aug 30 | 24°C | 10°C | 35°C 2017 | 1°C 2010 | 22% |
| Aug 31 | 24°C | 9°C | 34°C 1991 | 3°C 1994 | 23% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (MDT).
- August 1
- sunrise 6:02 AM, sunset 9:12 PM
- August 31
- sunrise 6:46 AM, sunset 8:16 PM
Other months
Sources
Cloud, humidity, wind and sunshine, and temperature and precipitation: 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.