Lewis County Weather in August
Average highs run from 83°F on August 1 to 78°F on August 31, and lows from 53°F to 51°F. Normal precipitation for the month is 1.30 in over about 6 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
- 81°F
- Average low
- 52°F
- Precipitation
- 1.30 in
- Record high
- 103°FAug 9, 1981
- Record low
- 35°FAug 5, 1909
- Chance of a freeze
- 0%
- Days of 90°F or more
- 9.6
- Daylight
- 14 h 49 min to 13 h 21 min
- Cloud cover
- 49%
- Humidity
- 72%
- Dew point
- 51°F
- Wind
- 3.6 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 | 83°F | 53°F | 94°F 1913 | 40°F 1902 | 17% | 0% |
| Aug 2 | 83°F | 53°F | 93°F 1939 | 38°F 1906 | 17% | 0% |
| Aug 3 | 83°F | 53°F | 95°F 1939 | 40°F 1906 | 17% | 0% |
| Aug 4 | 83°F | 53°F | 99°F 1993 | 40°F 1902 | 17% | 0% |
| Aug 5 | 83°F | 53°F | 95°F 1932 | 35°F 1909 | 18% | 0% |
| Aug 6 | 83°F | 53°F | 97°F 1945 | 38°F 1909 | 18% | 0% |
| Aug 7 | 82°F | 53°F | 98°F 1902 | 39°F 1909 | 18% | 0% |
| Aug 8 | 82°F | 53°F | 99°F 1978 | 39°F 1909 | 18% | 0% |
| Aug 9 | 82°F | 53°F | 103°F 1981 | 41°F 1906 | 18% | 0% |
| Aug 10 | 82°F | 52°F | 103°F 1981 | 41°F 1917 | 19% | 0% |
| Aug 11 | 82°F | 52°F | 99°F 1990 | 41°F 1902 | 19% | 0% |
| Aug 12 | 82°F | 52°F | 100°F 1977 | 40°F 1910 | 19% | 0% |
| Aug 13 | 82°F | 52°F | 95°F 1914 | 40°F 1943 | 19% | 0% |
| Aug 14 | 81°F | 52°F | 95°F 1930 | 39°F 1902 | 19% | 0% |
| Aug 15 | 81°F | 52°F | 99°F 1942 | 39°F 1937 | 20% | 0% |
| Aug 16 | 81°F | 52°F | 100°F 2020 | 37°F 1906 | 20% | 0% |
| Aug 17 | 81°F | 52°F | 102°F 1977 | 36°F 1906 | 20% | 0% |
| Aug 18 | 81°F | 52°F | 98°F 1940 | 36°F 1906 | 20% | 0% |
| Aug 19 | 80°F | 52°F | 96°F 2016 | 35°F 1916 | 21% | 0% |
| Aug 20 | 80°F | 52°F | 96°F 2016 | 37°F 1906 | 21% | 0% |
| Aug 21 | 80°F | 52°F | 97°F 1913 | 36°F 1909 | 21% | 0% |
| Aug 22 | 80°F | 52°F | 95°F 1913 | 36°F 1909 | 22% | 0% |
| Aug 23 | 80°F | 52°F | 94°F 1926 | 37°F 1910 | 22% | 0% |
| Aug 24 | 80°F | 51°F | 99°F 1926 | 37°F 1902 | 23% | 0% |
| Aug 25 | 79°F | 51°F | 96°F 1934 | 35°F 1902 | 23% | 0% |
| Aug 26 | 79°F | 51°F | 95°F 1967 | 36°F 1908 | 24% | 0% |
| Aug 27 | 79°F | 51°F | 96°F 1935 | 37°F 1905 | 24% | 0% |
| Aug 28 | 79°F | 51°F | 101°F 1936 | 37°F 1905 | 24% | 0% |
| Aug 29 | 79°F | 51°F | 98°F 1996 | 37°F 1902 | 25% | 0% |
| Aug 30 | 79°F | 51°F | 94°F 1944 | 35°F 1907 | 25% | 0% |
| Aug 31 | 78°F | 51°F | 96°F 1987 | 35°F 1905 | 26% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PDT).
- August 1
- sunrise 5:51 AM, sunset 8:40 PM
- August 31
- sunrise 6:29 AM, sunset 7:50 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00455110 (Mayfield Pwr Plt), public domain. Records: NOAA GHCN-Daily, station USC00451276, 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.