Fond du Lac weather in August: Fond du Lac, Wisconsin: normal highs, lows, rain and records for August
Fond du Lac in August has a normal high of 80°F and a normal low of 59°F, a daily mean of 69°F, falling from 81°F on the 1st to 77°F by the 31st. Measurable precipitation falls on 10 days in a normal August, 3.45 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 26°C and low of 15°C, 88 mm of precipitation in August.
- NOAA stationFond Du Lac County Airport
- Station IDUSW00004840
- Location43.77°N 88.49°W
- Elevation809 ft (247 m)
- From the center2 miles
- Population44,469
- Jan 27° 11°
- Feb 30° 14°
- Mar 42° 24°
- Apr 56° 35°
- May 68° 47°
- Jun 78° 57°
- Jul 82° 61°
- Aug 80° 59°
- Sep 73° 51°
- Oct 59° 40°
- Nov 45° 29°
- Dec 32° 18°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Fond du Lac in August?
The normal high is 80°F and the normal low 59°F, for a daily mean of 69.4°F. August is 1.9°F cooler than July and 7.5°F warmer than September. August is the 2nd warmest month of the year in Fond du Lac and the 2nd wettest. Across the month the normal high falls 4°F, from 81°F on August 1 to 77°F on August 31. From one year to the next August's mean temperature typically moves about 2.3°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 67°F and 72°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 33%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 81°F | 61°F | 33% | 21% |
| August 8 | 81°F | 60°F | 33% | 20% |
| August 15 | 80°F | 60°F | 32% | 20% |
| August 22 | 79°F | 59°F | 32% | 19% |
| August 31 | 77°F | 56°F | 31% | 19% |
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 | 81°F | 61°F | 33% | 21% | 14 h 40 min |
| August 2 | 81°F | 61°F | 33% | 21% | 14 h 40 min |
| August 3 | 81°F | 61°F | 33% | 21% | 14 h 30 min |
| August 4 | 81°F | 61°F | 33% | 21% | 14 h 30 min |
| August 5 | 81°F | 61°F | 33% | 21% | 14 h 30 min |
| August 6 | 81°F | 61°F | 33% | 21% | 14 h 30 min |
| August 7 | 81°F | 61°F | 33% | 21% | 14 h 20 min |
| August 8 | 81°F | 60°F | 33% | 20% | 14 h 20 min |
| August 9 | 80°F | 60°F | 33% | 20% | 14 h 20 min |
| August 10 | 80°F | 60°F | 33% | 20% | 14 h 20 min |
| August 11 | 80°F | 60°F | 33% | 20% | 14 h 10 min |
| August 12 | 80°F | 60°F | 32% | 20% | 14 h 10 min |
| August 13 | 80°F | 60°F | 32% | 20% | 14 h 10 min |
| August 14 | 80°F | 60°F | 32% | 20% | 14 h 10 min |
| August 15 | 80°F | 60°F | 32% | 20% | 14 h |
| August 16 | 80°F | 60°F | 32% | 20% | 14 h |
| August 17 | 80°F | 59°F | 32% | 20% | 14 h |
| August 18 | 79°F | 59°F | 32% | 20% | 13 h 50 min |
| August 19 | 79°F | 59°F | 32% | 20% | 13 h 50 min |
| August 20 | 79°F | 59°F | 32% | 20% | 13 h 50 min |
| August 21 | 79°F | 59°F | 32% | 19% | 13 h 50 min |
| August 22 | 79°F | 59°F | 32% | 19% | 13 h 40 min |
| August 23 | 79°F | 58°F | 32% | 19% | 13 h 40 min |
| August 24 | 79°F | 58°F | 31% | 19% | 13 h 40 min |
| August 25 | 78°F | 58°F | 31% | 19% | 13 h 40 min |
| August 26 | 78°F | 58°F | 31% | 19% | 13 h 30 min |
| August 27 | 78°F | 57°F | 31% | 19% | 13 h 30 min |
| August 28 | 78°F | 57°F | 31% | 19% | 13 h 30 min |
| August 29 | 78°F | 57°F | 31% | 19% | 13 h 20 min |
| August 30 | 78°F | 57°F | 31% | 19% | 13 h 20 min |
| August 31 | 77°F | 56°F | 31% | 19% | 13 h 20 min |
- Normal high
- 80°FAugust average
- Normal low
- 59°FAugust average
- Precipitation
- 3.45 inmonth total
- Days with precipitation
- 100.01 inch or more
- Days at 90°F or more
- 1
- 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
- 16
- Sunshine
- 78%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00004840; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Fond du Lac in August?
On a given August day the chance of 0.01 inch or more is 32% on average, highest around August 1 (33%). In all, 3.45 in falls on 10 days of a normal August, 1 of them with an inch or more.
In a normal August in Fond du Lac, 1 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00004840.
What are the records for August in Fond du Lac?
The warmest August temperature on this station's record (since 1996) is 98°F, on August 23, 2023; the coldest is 40°F, on August 31, 2009. The wettest August brought 9.77 in (2018).
The August mean against the 1991-2020 normal of 69.4°F: 2021 75.0°F (+5.6), 2022 70.5°F (+1.1), 2023 70.5°F (+1.1), 2024 69.4°F (at normal), 2025 67.6°F (−1.8), 2026 69.3°F (−0.1). 3 of 6 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 75.0°F | +5.6°F | 5.04 in |
| 2022 | 70.5°F | +1.1°F | 3.15 in |
| 2023 | 70.5°F | +1.1°F | 3.24 in |
| 2024 | 69.4°F | at normal | 3.81 in |
| 2025 | 67.6°F | −1.8°F | 2.71 in |
| 2026 | 69.3°F | −0.1°F | 2.55 in |
Source: records: ACIS, station USW00004840; recent months: ACIS, station USW00004840. Records and recent months use complete months only.
How does August in Fond du Lac 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; Fond du Lac's is 80°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Fond du Lac in July82°F by day, 61°F at night
- Fond du Lac in September73°F by day, 51°F at night
- Fond du Lac 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