Thompson Falls Weather in August
Average highs run from 90°F on August 1 to 82°F on August 31, and lows from 54°F to 48°F. Normal precipitation for the month is 0.89 in over about 5 wet days.
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
- 86°F
- Average low
- 52°F
- Precipitation
- 0.89 in
- Record high
- 93°FAug 9, 1942
- Record low
- 31°FAug 31, 1999
- Chance of a freeze
- 0%
- Days of 90°F or more
- 15.2
- Daylight
- 14 h 56 min to 13 h 24 min
- Cloud cover
- 42%
- Humidity
- 54%
- Dew point
- 43°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 |
|---|---|---|---|---|---|---|
| Aug 1 | 90°F | 54°F | 83°F 2015 | 38°F 1956 | 17% | 0% |
| Aug 2 | 90°F | 54°F | 85°F 1951 | 37°F 1956 | 17% | 0% |
| Aug 3 | 90°F | 54°F | 86°F 1942 | 36°F 1956 | 16% | 0% |
| Aug 4 | 89°F | 54°F | 82°F 1997 | 38°F 2002 | 16% | 0% |
| Aug 5 | 89°F | 54°F | 83°F 1998 | 35°F 2002 | 16% | 0% |
| Aug 6 | 89°F | 53°F | 85°F 1942 | 37°F 1946 | 16% | 0% |
| Aug 7 | 89°F | 53°F | 84°F 1945 | 33°F 1946 | 16% | 0% |
| Aug 8 | 89°F | 53°F | 84°F 1942 | 37°F 1949 | 16% | 0% |
| Aug 9 | 89°F | 53°F | 93°F 1942 | 39°F 1947 | 16% | 0% |
| Aug 10 | 88°F | 53°F | 93°F 2018 | 39°F 1947 | 17% | 0% |
| Aug 11 | 88°F | 53°F | 86°F 1940 | 42°F 2006 | 17% | 0% |
| Aug 12 | 88°F | 53°F | 82°F 2021 | 37°F 2005 | 17% | 0% |
| Aug 13 | 87°F | 52°F | 86°F 2015 | 36°F 2005 | 17% | 0% |
| Aug 14 | 87°F | 52°F | 86°F 2023 | 38°F 1944 | 17% | 0% |
| Aug 15 | 87°F | 52°F | 87°F 2023 | 38°F 2009 | 17% | 0% |
| Aug 16 | 87°F | 52°F | 85°F 2020 | 39°F 1954 | 18% | 0% |
| Aug 17 | 86°F | 52°F | 85°F 2022 | 39°F 1946 | 18% | 0% |
| Aug 18 | 86°F | 51°F | 86°F 2008 | 40°F 2021 | 18% | 0% |
| Aug 19 | 86°F | 51°F | 88°F 1942 | 40°F 1945 | 18% | 0% |
| Aug 20 | 85°F | 51°F | 86°F 1940 | 36°F 1948 | 18% | 0% |
| Aug 21 | 85°F | 51°F | 87°F 2026 | 36°F 2008 | 19% | 0% |
| Aug 22 | 85°F | 50°F | 84°F 1946 | 34°F 1943 | 19% | 0% |
| Aug 23 | 84°F | 50°F | 81°F 1942 | 36°F 2021 | 19% | 0% |
| Aug 24 | 84°F | 50°F | 78°F 1996 | 34°F 1953 | 20% | 0% |
| Aug 25 | 84°F | 50°F | 81°F 2026 | 33°F 1954 | 20% | 0% |
| Aug 26 | 83°F | 50°F | 83°F 2026 | 32°F 2008 | 20% | 0% |
| Aug 27 | 83°F | 49°F | 81°F 2017 | 34°F 2008 | 21% | 0% |
| Aug 28 | 83°F | 49°F | 81°F 2011 | 34°F 1942 | 21% | 0% |
| Aug 29 | 82°F | 49°F | 87°F 2017 | 35°F 1942 | 21% | 0% |
| Aug 30 | 82°F | 49°F | 82°F 1940 | 32°F 1999 | 22% | 0% |
| Aug 31 | 82°F | 48°F | 85°F 2022 | 31°F 1999 | 22% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MDT).
- August 1
- sunrise 6:19 AM, sunset 9:15 PM
- August 31
- sunrise 6:59 AM, sunset 8:23 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00248211 (Thompson Falls Ph), public domain. Records: NOAA GHCN-Daily, station USW00024154, 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.