Wisconsin Dells weather in August: Wisconsin Dells, Wisconsin: normal highs, lows, rain and records for August
Wisconsin Dells in August has a normal high of 81°F and a normal low of 57°F, a daily mean of 69°F, falling from 82°F on the 1st to 78°F by the 31st. Measurable precipitation falls on 10 days in a normal August, 4.22 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 27°C and low of 14°C, 107 mm of precipitation in August.
- NOAA stationWisconsin Dells
- Station IDUSC00479319
- Location43.61°N 89.77°W
- Elevation835 ft (255 m)
- Population3,157
- Jan 26° 8°
- Feb 31° 11°
- Mar 43° 22°
- Apr 57° 33°
- May 69° 45°
- Jun 79° 56°
- Jul 83° 60°
- Aug 81° 57°
- Sep 73° 49°
- Oct 60° 37°
- Nov 44° 26°
- Dec 32° 15°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Wisconsin Dells in August?
The normal high is 81°F and the normal low 57°F, for a daily mean of 68.9°F. August is 2.1°F cooler than July and 8.0°F warmer than September. August is the 2nd warmest month of the year in Wisconsin Dells and the 3rd wettest. Across the month the normal high falls 4°F, from 82°F on August 1 to 78°F on August 31. From one year to the next August's mean temperature typically moves about 2.5°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 66°F and 71°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 30%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 82°F | 59°F | 30% | 20% |
| August 8 | 82°F | 59°F | 30% | 20% |
| August 15 | 81°F | 58°F | 30% | 20% |
| August 22 | 80°F | 56°F | 30% | 20% |
| August 31 | 78°F | 54°F | 30% | 21% |
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 | 82°F | 59°F | 30% | 20% | 14 h 40 min |
| August 2 | 82°F | 59°F | 30% | 20% | 14 h 30 min |
| August 3 | 82°F | 59°F | 30% | 20% | 14 h 30 min |
| August 4 | 82°F | 59°F | 30% | 20% | 14 h 30 min |
| August 5 | 82°F | 59°F | 30% | 20% | 14 h 30 min |
| August 6 | 82°F | 59°F | 30% | 20% | 14 h 20 min |
| August 7 | 82°F | 59°F | 30% | 20% | 14 h 20 min |
| August 8 | 82°F | 59°F | 30% | 20% | 14 h 20 min |
| August 9 | 81°F | 58°F | 30% | 20% | 14 h 20 min |
| August 10 | 81°F | 58°F | 30% | 20% | 14 h 20 min |
| August 11 | 81°F | 58°F | 30% | 20% | 14 h 10 min |
| August 12 | 81°F | 58°F | 30% | 20% | 14 h 10 min |
| August 13 | 81°F | 58°F | 30% | 20% | 14 h 10 min |
| August 14 | 81°F | 58°F | 30% | 20% | 14 h |
| August 15 | 81°F | 58°F | 30% | 20% | 14 h |
| August 16 | 81°F | 58°F | 30% | 20% | 14 h |
| August 17 | 81°F | 57°F | 30% | 20% | 14 h |
| August 18 | 81°F | 57°F | 30% | 20% | 13 h 50 min |
| August 19 | 80°F | 57°F | 30% | 20% | 13 h 50 min |
| August 20 | 80°F | 57°F | 30% | 20% | 13 h 50 min |
| August 21 | 80°F | 57°F | 30% | 20% | 13 h 50 min |
| August 22 | 80°F | 56°F | 30% | 20% | 13 h 40 min |
| August 23 | 80°F | 56°F | 30% | 20% | 13 h 40 min |
| August 24 | 80°F | 56°F | 30% | 20% | 13 h 40 min |
| August 25 | 79°F | 56°F | 30% | 20% | 13 h 40 min |
| August 26 | 79°F | 56°F | 30% | 20% | 13 h 30 min |
| August 27 | 79°F | 55°F | 30% | 21% | 13 h 30 min |
| August 28 | 79°F | 55°F | 30% | 21% | 13 h 30 min |
| August 29 | 79°F | 55°F | 30% | 21% | 13 h 20 min |
| August 30 | 78°F | 55°F | 30% | 21% | 13 h 20 min |
| August 31 | 78°F | 54°F | 30% | 21% | 13 h 20 min |
- Normal high
- 81°FAugust average
- Normal low
- 57°FAugust average
- Precipitation
- 4.22 inmonth total
- Days with precipitation
- 100.01 inch or more
- Days at 90°F or more
- 3
- Daylight
- 14 h 40 min to 13 h 20 minAugust 1 to August 31
- Days at 70°F or more
- 29
- Days at 80°F or more
- 19
- Sunshine
- 78%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00479319; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Wisconsin Dells in August?
On a given August day the chance of 0.01 inch or more is 30% on average, highest around August 3 (30%). In all, 4.22 in falls on 10 days of a normal August, 1 of them with an inch or more.
In a normal August in Wisconsin Dells, 3 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00479319.
What are the records for August in Wisconsin Dells?
The warmest August temperature on this station's record (since 1922) is 104°F, on August 16, 1937; the coldest is 32°F, on August 29, 1934. The wettest August brought 14.13 in (1980).
The August mean against the 1991-2020 normal of 68.9°F: 2021 70.6°F (+1.7), 2022 68.8°F (−0.1), 2023 69.6°F (+0.7), 2024 68.7°F (−0.2), 2025 67.0°F (−1.9). 2 of 5 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 70.6°F | +1.7°F | 4.45 in |
| 2022 | 68.8°F | −0.1°F | 3.96 in |
| 2023 | 69.6°F | +0.7°F | 2.10 in |
| 2024 | 68.7°F | −0.2°F | 2.45 in |
| 2025 | 67.0°F | −1.9°F | 3.70 in |
Source: records: ACIS, station USC00479319; recent months: ACIS, station USC00479319. Records and recent months use complete months only.
How does August in Wisconsin Dells compare across Wisconsin?
Across the 165 places PlainClimate covers in Wisconsin, August normal highs run from 71°F in Laona to 83°F in Lake Geneva; Wisconsin Dells's is 81°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Wisconsin Dells in July83°F by day, 60°F at night
- Wisconsin Dells in September73°F by day, 49°F at night
- Wisconsin Dells through the yearEvery month, frost dates, records and recent years
- Wisconsin in AugustThe statewide normal and the warmest and coolest places
- Lake Geneva: Wisconsin's warmest Augustnormal high 83°F