Poplar Bluff weather in August: Poplar Bluff, Missouri: normal highs, lows, rain and records for August
Poplar Bluff in August has a normal high of 88°F and a normal low of 67°F, a daily mean of 78°F, falling from 89°F on the 1st to 86°F by the 31st. Measurable precipitation falls on 12 days in a normal August, 3.44 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 31°C and low of 20°C, 87 mm of precipitation in August.
- NOAA stationPoplar Bluff Municipal Airport
- Station IDUSW00003975
- Location36.77°N 90.32°W
- Elevation327 ft (100 m)
- Population16,177
- Jan 45° 28°
- Feb 50° 31°
- Mar 59° 39°
- Apr 70° 48°
- May 79° 58°
- Jun 87° 66°
- Jul 89° 70°
- Aug 88° 67°
- Sep 82° 59°
- Oct 72° 47°
- Nov 58° 37°
- Dec 47° 30°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Poplar Bluff in August?
The normal high is 88°F and the normal low 67°F, for a daily mean of 77.7°F. August is 2.0°F cooler than July and 7.1°F warmer than September. August is the 2nd warmest month of the year in Poplar Bluff and the 12th wettest. Across the month the normal high falls 3°F, from 89°F on August 1 to 86°F on August 31. From one year to the next August's mean temperature typically moves about 2.4°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 75°F and 80°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 40%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 89°F | 70°F | 36% | 18% |
| August 8 | 89°F | 69°F | 38% | 18% |
| August 15 | 89°F | 68°F | 39% | 18% |
| August 22 | 88°F | 67°F | 40% | 16% |
| August 31 | 86°F | 64°F | 40% | 15% |
Every day of August: normal high, low and chance of precipitation (warmest afternoon August 1, coldest night August 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| August 1 | 89°F | 70°F | 36% | 18% | 14 h |
| August 2 | 89°F | 70°F | 37% | 18% | 14 h |
| August 3 | 89°F | 70°F | 37% | 18% | 14 h |
| August 4 | 89°F | 69°F | 37% | 18% | 14 h |
| August 5 | 89°F | 69°F | 37% | 18% | 14 h |
| August 6 | 89°F | 69°F | 38% | 18% | 13 h 50 min |
| August 7 | 89°F | 69°F | 38% | 18% | 13 h 50 min |
| August 8 | 89°F | 69°F | 38% | 18% | 13 h 50 min |
| August 9 | 89°F | 69°F | 38% | 18% | 13 h 50 min |
| August 10 | 89°F | 69°F | 38% | 18% | 13 h 50 min |
| August 11 | 89°F | 69°F | 39% | 18% | 13 h 40 min |
| August 12 | 89°F | 68°F | 39% | 18% | 13 h 40 min |
| August 13 | 89°F | 68°F | 39% | 18% | 13 h 40 min |
| August 14 | 89°F | 68°F | 39% | 18% | 13 h 40 min |
| August 15 | 89°F | 68°F | 39% | 18% | 13 h 40 min |
| August 16 | 88°F | 68°F | 39% | 17% | 13 h 30 min |
| August 17 | 88°F | 68°F | 39% | 17% | 13 h 30 min |
| August 18 | 88°F | 67°F | 39% | 17% | 13 h 30 min |
| August 19 | 88°F | 67°F | 40% | 17% | 13 h 30 min |
| August 20 | 88°F | 67°F | 40% | 17% | 13 h 30 min |
| August 21 | 88°F | 67°F | 40% | 17% | 13 h 20 min |
| August 22 | 88°F | 67°F | 40% | 16% | 13 h 20 min |
| August 23 | 88°F | 66°F | 40% | 16% | 13 h 20 min |
| August 24 | 87°F | 66°F | 40% | 16% | 13 h 20 min |
| August 25 | 87°F | 66°F | 40% | 16% | 13 h 20 min |
| August 26 | 87°F | 66°F | 40% | 16% | 13 h 10 min |
| August 27 | 87°F | 65°F | 40% | 16% | 13 h 10 min |
| August 28 | 87°F | 65°F | 40% | 16% | 13 h 10 min |
| August 29 | 87°F | 65°F | 40% | 16% | 13 h 10 min |
| August 30 | 86°F | 65°F | 40% | 16% | 13 h |
| August 31 | 86°F | 64°F | 40% | 15% | 13 h |
- Normal high
- 88°FAugust average
- Normal low
- 67°FAugust average
- Precipitation
- 3.44 inmonth total
- Days with precipitation
- 120.01 inch or more
- Days at 90°F or more
- 13
- Daylight
- 14 h to 13 hAugust 1 to August 31
- Days at 70°F or more
- 31
- Days at 80°F or more
- 29
- Sunshine
- 83%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00003975; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Poplar Bluff in August?
On a given August day the chance of 0.01 inch or more is 39% on average, highest around August 31 (40%). In all, 3.44 in falls on 12 days of a normal August, 1 of them with an inch or more.
In a normal August in Poplar Bluff, 13 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00003975.
How humid and windy is Poplar Bluff in August?
At 3 p.m. the normal temperature is 86°F with 53% relative humidity and a dew point of 67°F; at 6 a.m. it is 67°F with 91% humidity. The wind averages 4.3 mph, most often from the south-southeast in the afternoon. A dew point of 65°F or more feels muggy to most people.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 67°F | 64°F | 91% | 2.8 mph | – |
| 9 a.m. | 77°F | 68°F | 72% | 5.6 mph | – |
| noon | 84°F | 67°F | 58% | 6.7 mph | – |
| 3 p.m. | 86°F | 67°F | 53% | 7.1 mph | – |
| 6 p.m. | 81°F | 68°F | 66% | 4.0 mph | – |
| 9 p.m. | 73°F | 67°F | 84% | 2.6 mph | – |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00003975. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for August in Poplar Bluff?
The warmest August temperature on Poplar Bluff's official record (since 1893) is 112°F, on August 9, 1930; the coldest is 44°F, on August 28, 1967. The wettest August brought 14.85 in (1915).
The August mean against the 1991-2020 normal of 77.7°F: 2021 78.0°F (+0.3), 2022 77.3°F (−0.4), 2023 77.1°F (−0.6), 2024 78.5°F (+0.8), 2025 76.8°F (−0.9), 2026 80.0°F (+2.3). 3 of 6 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 78.0°F | +0.3°F | 5.63 in |
| 2022 | 77.3°F | −0.4°F | 3.74 in |
| 2023 | 77.1°F | −0.6°F | 5.14 in |
| 2024 | 78.5°F | +0.8°F | 1.75 in |
| 2025 | 76.8°F | −0.9°F | 0.52 in |
| 2026 | 80.0°F | +2.3°F | 0.79 in |
Source: records: ACIS, NWS threaded record POFthr; recent months: ACIS, station USW00003975. Records and recent months use complete months only.
How does August in Poplar Bluff compare across Missouri?
Across the 134 places PlainClimate covers in Missouri, August normal highs run from 83°F in Canton to 91°F in Malden; Poplar Bluff's is 88°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.