As of 10:25 CDT

Jerseyville, IL weather in May

85°

Jerseyville, Sunday, 9 August, 10:25

Overcast. Feels like 96°. High 95°, low 72°.

Pressure30.00 inHg

Wind11.4 mph S

Humidity78%

Visibility6.2 mi

Dew point77°

See detailed hourly forecast

In May, Jerseyville, IL averages a high of 73.4° and a low of 56°. About 4.7 inches of precipitation fall over the month (13 wet days). The record high is 93.4° (2012) and the record low 32.7° (1966). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	68.4°	51.6°	47%	82° (1987)	34.7° (1963)
2	67.6°	50.9°	42%	86° (2012)	34.7° (1978)
3	66.2°	50.4°	45%	83.5° (2012)	35.1° (2005)
4	68.2°	50.2°	43%	81.7° (2012)	35.4° (1976)
5	71.4°	51.4°	30%	85.3° (2012)	40.8° (1979)
6	70.9°	53.2°	37%	87.8° (2012)	36.3° (1978)
7	72.7°	54.7°	45%	83.7° (1965)	38.7° (1992)
8	72.7°	54.5°	47%	86.2° (2000)	38.1° (1976)
9	71.4°	54°	35%	87.1° (2003)	34.5° (2020)
10	72.3°	53.4°	32%	87.6° (2018)	32.7° (1966)
11	72.1°	55.6°	52%	86.7° (2022)	37.6° (2020)
12	71.6°	55°	42%	88.9° (2022)	34.2° (1960)
13	71.8°	54.5°	48%	88.7° (2018)	38.5° (2021)
14	72°	54.7°	47%	87.4° (1987)	41° (2021)
15	72.7°	54.9°	48%	88° (2025)	39.4° (1973)
16	73.2°	55.6°	35%	89.1° (2001)	40.6° (1983)
17	73.8°	56.7°	40%	87.6° (1996)	40.3° (2014)
18	74.5°	56.8°	40%	88.3° (1962)	37.8° (2002)
19	75.2°	56.8°	43%	89.8° (1998)	40.8° (2002)
20	74.8°	57.4°	37%	89.4° (1987)	40.8° (2002)
21	74.7°	56.8°	33%	88° (2024)	41° (2002)
22	75°	57.2°	37%	87.6° (1962)	41° (1963)
23	76.5°	58.3°	37%	88.7° (1975)	38.8° (1963)
24	76.8°	59.4°	38%	90.3° (2012)	45.9° (1961)
25	75.7°	59.5°	50%	88.3° (1967)	43.5° (1992)
26	76.1°	59.4°	57%	93.4° (2012)	43.7° (1979)
27	76.5°	59.4°	45%	92.5° (2012)	39° (1961)
28	77.5°	59.9°	40%	91.8° (2012)	42.4° (1992)
29	77.7°	60.6°	35%	89.2° (2006)	43.9° (1984)
30	77.7°	61.3°	43%	88° (2011)	42.8° (2021)
31	78.1°	61.2°	32%	88.7° (2000)	45° (1984)