Lake Geneva weather in October: Lake Geneva, Wisconsin: normal highs, lows, rain and records for October
Lake Geneva in October has a normal high of 63°F and a normal low of 42°F, a daily mean of 52°F, falling from 70°F on the 1st to 55°F by the 31st. Measurable precipitation falls on 10 days in a normal October, 3.01 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 17°C and low of 6°C, 76 mm of precipitation and 1 cm of snow in October.
- NOAA stationLake Geneva Wastewater Treatment Plant
- Station IDUSC00474457
- Location42.60°N 88.43°W
- Elevation846 ft (258 m)
- Population8,691
- Jan 30° 15°
- Feb 35° 17°
- Mar 45° 26°
- Apr 59° 37°
- May 72° 48°
- Jun 81° 58°
- Jul 86° 63°
- Aug 83° 61°
- Sep 76° 54°
- Oct 63° 42°
- Nov 47° 31°
- Dec 35° 21°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Lake Geneva in October?
The normal high is 63°F and the normal low 42°F, for a daily mean of 52.4°F. October is 12.7°F cooler than September and 13.3°F warmer than November. October is the 6th warmest month of the year in Lake Geneva and the 7th wettest. Across the month the normal high falls 15°F, from 70°F on October 1 to 55°F on October 31. From one year to the next October's mean temperature typically moves about 2.3°F either way (NOAA's standard deviation), so roughly two Octobers in three average between 50°F and 55°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 |
|---|---|---|---|---|
| October 1 | 70°F | 48°F | 33% | 21% |
| October 8 | 67°F | 45°F | 33% | 20% |
| October 15 | 63°F | 43°F | 33% | 19% |
| October 22 | 60°F | 40°F | 33% | 19% |
| October 31 | 55°F | 37°F | 33% | 18% |
Every day of October: normal high, low and chance of precipitation (warmest afternoon October 1, coldest night October 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| October 1 | 70°F | 48°F | 33% | 21% | 11 h 50 min |
| October 2 | 69°F | 47°F | 33% | 21% | 11 h 50 min |
| October 3 | 69°F | 47°F | 33% | 21% | 11 h 40 min |
| October 4 | 68°F | 46°F | 33% | 21% | 11 h 40 min |
| October 5 | 68°F | 46°F | 33% | 21% | 11 h 40 min |
| October 6 | 67°F | 46°F | 33% | 21% | 11 h 30 min |
| October 7 | 67°F | 45°F | 33% | 20% | 11 h 30 min |
| October 8 | 67°F | 45°F | 33% | 20% | 11 h 30 min |
| October 9 | 66°F | 45°F | 33% | 20% | 11 h 30 min |
| October 10 | 66°F | 44°F | 33% | 20% | 11 h 20 min |
| October 11 | 65°F | 44°F | 33% | 20% | 11 h 20 min |
| October 12 | 65°F | 44°F | 33% | 20% | 11 h 20 min |
| October 13 | 64°F | 43°F | 33% | 19% | 11 h 10 min |
| October 14 | 64°F | 43°F | 33% | 19% | 11 h 10 min |
| October 15 | 63°F | 43°F | 33% | 19% | 11 h 10 min |
| October 16 | 63°F | 42°F | 33% | 19% | 11 h 10 min |
| October 17 | 62°F | 42°F | 33% | 19% | 11 h |
| October 18 | 62°F | 42°F | 33% | 19% | 11 h |
| October 19 | 61°F | 41°F | 33% | 19% | 11 h |
| October 20 | 61°F | 41°F | 33% | 19% | 10 h 50 min |
| October 21 | 60°F | 41°F | 33% | 19% | 10 h 50 min |
| October 22 | 60°F | 40°F | 33% | 19% | 10 h 50 min |
| October 23 | 59°F | 40°F | 33% | 19% | 10 h 50 min |
| October 24 | 59°F | 39°F | 33% | 19% | 10 h 40 min |
| October 25 | 58°F | 39°F | 33% | 19% | 10 h 40 min |
| October 26 | 58°F | 39°F | 33% | 19% | 10 h 40 min |
| October 27 | 58°F | 38°F | 33% | 18% | 10 h 40 min |
| October 28 | 57°F | 38°F | 33% | 18% | 10 h 30 min |
| October 29 | 57°F | 38°F | 33% | 18% | 10 h 30 min |
| October 30 | 56°F | 37°F | 33% | 18% | 10 h 30 min |
| October 31 | 55°F | 37°F | 33% | 18% | 10 h 20 min |
- Normal high
- 63°FOctober average
- Normal low
- 42°FOctober average
- Precipitation
- 3.01 inmonth total
- Days with precipitation
- 100.01 inch or more
- Snowfall
- 0.2 inmonth total
- Nights at 32°F or colder
- 4
- Daylight
- 11 h 50 min to 10 h 20 minOctober 1 to October 31
- Days at 70°F or more
- 8
- Days at 80°F or more
- 1
- Sunshine
- 69%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00474457; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Lake Geneva in October?
On a given October day the chance of 0.01 inch or more is 33% on average, highest around October 1 (33%). In all, 3.01 in falls on 10 days of a normal October, 1 of them with an inch or more.
In a normal October in Lake Geneva, 4 nights fall to freezing and snowfall averages 0.2 inches.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00474457.
What are the records for October in Lake Geneva?
The warmest October temperature on this station's record (since 1945) is 87°F, on October 2, 1971; the coldest is 17°F, on October 30, 1988. The wettest October brought 7.92 in (1991); the snowiest, 2.2 inches (2019).
The October mean against the 1991-2020 normal of 52.4°F: 2023 52.0°F (−0.4), 2024 53.7°F (+1.3), 2025 53.7°F (+1.3). 2 of 3 ran warmer than normal.
| October | Mean | Against normal | Precip. |
|---|---|---|---|
| 2023 | 52.0°F | −0.4°F | 3.28 in |
| 2024 | 53.7°F | +1.3°F | 0.31 in |
| 2025 | 53.7°F | +1.3°F | 1.59 in |
Source: records: ACIS, station USC00474457; recent months: ACIS, station USC00474457. Records and recent months use complete months only.
How does October in Lake Geneva compare across Wisconsin?
Across the 165 places PlainClimate covers in Wisconsin, October normal highs run from 52°F in Laona to 63°F in Lake Geneva; Lake Geneva's is 63°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.