As of 23:28 CDT

Weather in Jerseyville, IL

66°

Jerseyville, Thursday, 29 October, 23:28

Mostly clear. Feels like 66°. High 79°, low 57°.

Pressure30.18 inHg

Wind6.6 mph NE

Humidity85%

Visibility6.2 mi

Dew point60°

See detailed hourly forecast

Monthly outlook for Jerseyville, IL: average high 63.6°, average low 52.1°. That is 3.8° above the climate normal for October. Precipitation is expected on 6 days (about 2.2 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 29 October (79.2°), the coolest 13 November (42°).

63.6°/52.1°

Average high / low

+3.8°

Above normal

6 / 4

Wet days / normal

2.2 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
29 October – 7 November	69.2°	58.4°	+6°
8 November – 17 November	54.2°	53.6°	+0.4°
18 November – 27 November	at normal	50°	—

October records over 66 years

89.8°3 October 2006All-time high

26.4°24 October 1981All-time low

Fri, 3077° / 58°

77 °

Jerseyville, Friday, 30 October

Overcast. High 77°, low 58°.

Pressure30.24 inHg

Wind8.5 mph SE

Humidity61%

Visibility6.2 mi

Dew point57°

Sat, 3172° / 61°

72 °

Jerseyville, Saturday, 31 October

Overcast. High 72°, low 61°.

Pressure30.27 inHg

Wind3.8 mph SE

Humidity69%

Visibility6.2 mi

Dew point56°

Sun, 0170° / 59°

0.08

70 °

Jerseyville, Sunday, 1 November

Light rain. High 70°, low 59°.

Pressure30.27 inHg

Wind7.8 mph SE

Humidity70%

Visibility6.2 mi

Dew point57°

Mon, 0270° / 59°

70 °

Jerseyville, Monday, 2 November

Overcast. High 70°, low 59°.

Pressure30.09 inHg

Wind11.9 mph S

Humidity79%

Visibility6.2 mi

Dew point58°

Tue, 0371° / 64°

0.8

71 °

Jerseyville, Tuesday, 3 November

Rain. High 71°, low 64°.

Pressure29.88 inHg

Wind15.4 mph S

Humidity91%

Visibility—

Dew point63°

Wed, 0464° / 56°

0.76

64 °

Jerseyville, Wednesday, 4 November

Rain. High 64°, low 56°.

Pressure29.77 inHg

Wind13.6 mph S

Humidity73%

Visibility—

Dew point51°

Thu, 0562° / 55°

0.06

62 °

Jerseyville, Thursday, 5 November

Light rain. High 62°, low 55°.

Pressure29.71 inHg

Wind13.4 mph N

Humidity82%

Visibility—

Dew point56°

Fri, 0663° / 47°

63 °

Jerseyville, Friday, 6 November

Partly cloudy. High 63°, low 47°.

Pressure29.85 inHg

Wind8.5 mph N

Humidity50%

Visibility—

Dew point41°

Sat, 0764° / 46°

64 °

Jerseyville, Saturday, 7 November

Partly cloudy. High 64°, low 46°.

Pressure30.12 inHg

Wind7.9 mph E

Humidity48%

Visibility—

Dew point40°

Sun, 0856° / 49°

0.17

56 °

Jerseyville, Sunday, 8 November

Light rain. High 56°, low 49°.

Pressure29.91 inHg

Wind14.2 mph E

Humidity57%

Visibility—

Dew point40°

Mon, 0955° / 48°

0.01

55 °

Jerseyville, Monday, 9 November

Light rain. High 55°, low 48°.

Pressure29.91 inHg

Wind11.5 mph NW

Humidity71%

Visibility—

Dew point45°

Tue, 1049° / 45°

0.01

49 °

Jerseyville, Tuesday, 10 November

Light rain. High 49°, low 45°.

Pressure30.15 inHg

Wind12 mph N

Humidity61%

Visibility—

Dew point35°

Wed, 1155° / 42°

55 °

Jerseyville, Wednesday, 11 November

Overcast. High 55°, low 42°.

Pressure30.00 inHg

Wind10.9 mph S

Humidity49%

Visibility—

Dew point33°

Thu, 1251° / 45°

0.3

51 °

Jerseyville, Thursday, 12 November

Rain. High 51°, low 45°.

Pressure29.59 inHg

Wind11.7 mph SE

Humidity89%

Visibility—

Dew point45°

Fri, 1360° / 42°

0.01

60 °

Jerseyville, Friday, 13 November

Light rain. High 60°, low 42°.

Pressure29.85 inHg

Wind12 mph W

Humidity48%

Visibility—

Dew point36°

From day 17 onward the outlook is built from 60-year climate statistics

Sat, 1453° / 38°

0.08

53 °

Jerseyville, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high53°

Average low38°

Average precipitation0.08 in

Chance of precipitation30%

Record high76° (2025)

Record low15° (1986)

Sun, 1553° / 38°

0.12

53 °

Jerseyville, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high53°

Average low38°

Average precipitation0.12 in

Chance of precipitation32%

Record high76° (1964)

Record low20° (2019)

Mon, 1652° / 37°

0.1

52 °

Jerseyville, Monday, 16 November

Climate normal for this date — 60-year average.

Average high52°

Average low37°

Average precipitation0.1 in

Chance of precipitation22%

Record high71° (2001)

Record low23° (1997)

Tue, 1753° / 38°

0.13

53 °

Jerseyville, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high53°

Average low38°

Average precipitation0.13 in

Chance of precipitation30%

Record high74° (2016)

Record low19° (2014)

Wed, 1853° / 38°

0.16

53 °

Jerseyville, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high53°

Average low38°

Average precipitation0.16 in

Chance of precipitation33%

Record high69° (1999)

Record low14° (2014)

Thu, 1953° / 38°

0.09

53 °

Jerseyville, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high53°

Average low38°

Average precipitation0.09 in

Chance of precipitation27%

Record high71° (1979)

Record low21° (2022)

Fri, 2051° / 37°

0.11

51 °

Jerseyville, Friday, 20 November

Climate normal for this date — 60-year average.

Average high51°

Average low37°

Average precipitation0.11 in

Chance of precipitation28%

Record high72° (2007)

Record low17° (1984)

Sat, 2150° / 36°

0.1

50 °

Jerseyville, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high50°

Average low36°

Average precipitation0.1 in

Chance of precipitation27%

Record high69° (1990)

Record low15° (1964)

Sun, 2250° / 35°

0.08

50 °

Jerseyville, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high50°

Average low35°

Average precipitation0.08 in

Chance of precipitation23%

Record high72° (2010)

Record low17° (1964)

Mon, 2350° / 35°

0.09

50 °

Jerseyville, Monday, 23 November

Climate normal for this date — 60-year average.

Average high50°

Average low35°

Average precipitation0.09 in

Chance of precipitation30%

Record high67° (1966)

Record low16° (1970)

Tue, 2449° / 34°

0.13

49 °

Jerseyville, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high49°

Average low34°

Average precipitation0.13 in

Chance of precipitation28%

Record high69° (1966)

Record low15° (1970)

Wed, 2549° / 35°

0.13

49 °

Jerseyville, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high49°

Average low35°

Average precipitation0.13 in

Chance of precipitation33%

Record high66° (2006)

Record low18° (1977)

Thu, 2649° / 35°

0.15

49 °

Jerseyville, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high49°

Average low35°

Average precipitation0.15 in

Chance of precipitation42%

Record high74° (1965)

Record low12° (1977)

Fri, 2747° / 35°

0.21

47 °

Jerseyville, Friday, 27 November

Climate normal for this date — 60-year average.

Average high47°

Average low35°

Average precipitation0.21 in

Chance of precipitation43%

Record high69° (1989)

Record low13° (1993)

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Jerseyville, IL are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Jerseyville, IL since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.