As of 16:10 CDT

Grafton, WI weather in October

75°

Grafton, Sunday, 9 August, 16:10

Overcast. Feels like 77°. High 77°, low 62°.

Pressure29.91 inHg

Wind7.3 mph SW

Humidity84%

Visibility6.2 mi

Dew point70°

See detailed hourly forecast

In October, Grafton, WI averages a high of 57.2° and a low of 48.4°. About 3.0 inches of precipitation fall over the month (10 wet days). The record high is 85.3° (2025) and the record low 26.2° (2019). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	64°	54.9°	27%	80.2° (2023)	40.8° (1974)
2	63.5°	54°	28%	81° (2023)	37.8° (1974)
3	63.3°	53.8°	37%	85.3° (2025)	40.1° (1987)
4	62.4°	53.1°	25%	83.1° (2025)	39.6° (1989)
5	62.1°	52.9°	28%	79.5° (2025)	38.1° (2020)
6	61.7°	52.2°	42%	77.7° (2007)	39° (1964)
7	60.1°	51.1°	25%	77.9° (2007)	36.9° (2000)
8	61°	51.8°	33%	78.6° (2018)	36.9° (2022)
9	60.1°	50.9°	32%	79.2° (2018)	37.9° (1964)
10	58.8°	50.5°	25%	74.5° (2021)	35.2° (1964)
11	59.9°	50.7°	22%	79.3° (2024)	33.6° (2009)
12	58.6°	50.4°	37%	71.4° (1962)	32.5° (2006)
13	58.3°	49.6°	32%	72.7° (1975)	30.9° (2018)
14	58.3°	49.1°	40%	70.9° (1975)	34.3° (2019)
15	57°	48.4°	40%	70.2° (1968)	32.7° (2022)
16	55.8°	47.5°	27%	68.5° (1962)	35.8° (2024)
17	56.5°	46.9°	27%	71.4° (2025)	34.2° (2022)
18	55.9°	46°	37%	73.8° (2025)	29.7° (2018)
19	55°	46.2°	35%	71.4° (2021)	31.1° (2020)
20	55.9°	46.4°	32%	75.4° (2024)	31.3° (2020)
21	55.6°	46.9°	32%	76.6° (2024)	27.3° (2018)
22	55°	45.9°	40%	73.2° (2022)	33.3° (1976)
23	54.1°	46.2°	45%	71.1° (1963)	32.2° (1969)
24	54.1°	45.7°	43%	75.6° (2023)	29.5° (2020)
25	53.6°	45°	32%	70° (2023)	31.1° (2025)
26	52.3°	44.8°	28%	70.9° (1963)	29.5° (1962)
27	52.7°	44.2°	30%	68.4° (2023)	27.7° (2020)
28	51.6°	43.7°	20%	62.4° (1984)	29.7° (2020)
29	51.4°	43.3°	17%	78.1° (2024)	29.1° (1988)
30	52.7°	44.4°	25%	76.1° (2024)	27.5° (2020)
31	52°	43.7°	43%	67.6° (2024)	26.2° (2019)