As of 13:35 CST

Weather in Jerseyville, IL

50°

Jerseyville, Sunday, 15 November, 13:35

Clear. Feels like 50°. High 50°, low 26°.

Pressure30.42 inHg

Wind1.6 mph E

Humidity47%

Visibility6.2 mi

Dew point30°

See detailed hourly forecast

Monthly outlook for Jerseyville, IL: average high 55°, average low 38.8°. That is 2.9° above the climate normal for November. Precipitation is expected on 2 days (about 0.5 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 19 November (66.5°), the coolest 15 November (26.2°).

55°/38.8°

Average high / low

+2.9°

Above normal

2 / 5

Wet days / normal

0.5 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
15 November – 24 November	56.8°	51.4°	+3°
25 November – 4 December	52.1°	46.3°	+3.3°
5 December – 14 December	at normal	42.4°	—

November records over 66 years

79°8 November 2023All-time high

-0.6°8 November 1991All-time low

Mon, 1656° / 27°

56 °

Jerseyville, Monday, 16 November

Clear. High 56°, low 27°.

Pressure30.53 inHg

Wind5.3 mph S

Humidity49%

Visibility6.2 mi

Dew point33°

Tue, 1756° / 33°

56 °

Jerseyville, Tuesday, 17 November

Clear. High 56°, low 33°.

Pressure30.50 inHg

Wind7.4 mph S

Humidity54%

Visibility6.2 mi

Dew point38°

Wed, 1859° / 40°

59 °

Jerseyville, Wednesday, 18 November

Overcast. High 59°, low 40°.

Pressure30.36 inHg

Wind11.2 mph S

Humidity52%

Visibility6.2 mi

Dew point40°

Thu, 1966° / 48°

66 °

Jerseyville, Thursday, 19 November

Clear. High 66°, low 48°.

Pressure30.33 inHg

Wind9.3 mph SW

Humidity57%

Visibility6.2 mi

Dew point50°

Fri, 2062° / 50°

62 °

Jerseyville, Friday, 20 November

Overcast. High 62°, low 50°.

Pressure30.30 inHg

Wind10.8 mph S

Humidity77%

Visibility—

Dew point52°

Sat, 2164° / 48°

0.11

64 °

Jerseyville, Saturday, 21 November

Light rain. High 64°, low 48°.

Pressure30.03 inHg

Wind15.7 mph S

Humidity37%

Visibility—

Dew point35°

Sun, 2256° / 43°

56 °

Jerseyville, Sunday, 22 November

Clear. High 56°, low 43°.

Pressure30.18 inHg

Wind12.1 mph NW

Humidity49%

Visibility—

Dew point35°

Mon, 2348° / 34°

48 °

Jerseyville, Monday, 23 November

Partly cloudy. High 48°, low 34°.

Pressure30.33 inHg

Wind9.6 mph NE

Humidity43%

Visibility—

Dew point24°

Tue, 2450° / 32°

50 °

Jerseyville, Tuesday, 24 November

Overcast. High 50°, low 32°.

Pressure30.30 inHg

Wind7.8 mph E

Humidity34%

Visibility—

Dew point19°

Wed, 2552° / 34°

52 °

Jerseyville, Wednesday, 25 November

Overcast. High 52°, low 34°.

Pressure30.18 inHg

Wind8.1 mph SE

Humidity39%

Visibility—

Dew point25°

Thu, 2661° / 46°

61 °

Jerseyville, Thursday, 26 November

Light rain. High 61°, low 46°.

Pressure30.09 inHg

Wind10.8 mph SE

Humidity41%

Visibility—

Dew point35°

Fri, 2751° / 46°

0.37

51 °

Jerseyville, Friday, 27 November

Rain. High 51°, low 46°.

Pressure29.97 inHg

Wind6.7 mph W

Humidity92%

Visibility—

Dew point47°

Sat, 2851° / 39°

51 °

Jerseyville, Saturday, 28 November

Clear. High 51°, low 39°.

Pressure30.06 inHg

Wind8.1 mph N

Humidity55%

Visibility—

Dew point33°

Sun, 2950° / 36°

50 °

Jerseyville, Sunday, 29 November

Overcast. High 50°, low 36°.

Pressure30.09 inHg

Wind11.9 mph E

Humidity57%

Visibility—

Dew point33°

Mon, 3048° / 38°

48 °

Jerseyville, Monday, 30 November

Overcast. High 48°, low 38°.

Pressure30.15 inHg

Wind12.1 mph N

Humidity57%

Visibility—

Dew point32°

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

Tue, 0145° / 32°

0.11

45 °

Jerseyville, Tuesday, 1 December

Climate normal for this date — 60-year average.

Average high45°

Average low32°

Average precipitation0.11 in

Chance of precipitation28%

Record high66° (1970)

Record low12° (1985)

Wed, 0246° / 32°

0.08

46 °

Jerseyville, Wednesday, 2 December

Climate normal for this date — 60-year average.

Average high46°

Average low32°

Average precipitation0.08 in

Chance of precipitation25%

Record high69° (1982)

Record low6° (2006)

Thu, 0345° / 32°

0.11

45 °

Jerseyville, Thursday, 3 December

Climate normal for this date — 60-year average.

Average high45°

Average low32°

Average precipitation0.11 in

Chance of precipitation28%

Record high71° (2012)

Record low10° (1985)

Fri, 0444° / 31°

0.08

44 °

Jerseyville, Friday, 4 December

Climate normal for this date — 60-year average.

Average high44°

Average low31°

Average precipitation0.08 in

Chance of precipitation28%

Record high69° (1998)

Record low3° (2006)

Sat, 0545° / 30°

0.08

45 °

Jerseyville, Saturday, 5 December

Climate normal for this date — 60-year average.

Average high45°

Average low30°

Average precipitation0.08 in

Chance of precipitation28%

Record high70° (1998)

Record low4° (2025)

Sun, 0642° / 29°

0.06

42 °

Jerseyville, Sunday, 6 December

Climate normal for this date — 60-year average.

Average high42°

Average low29°

Average precipitation0.06 in

Chance of precipitation38%

Record high69° (1998)

Record low2° (1964)

Mon, 0741° / 29°

0.1

41 °

Jerseyville, Monday, 7 December

Climate normal for this date — 60-year average.

Average high41°

Average low29°

Average precipitation0.1 in

Chance of precipitation20%

Record high65° (1980)

Record low-2° (1977)

Tue, 0842° / 29°

0.07

42 °

Jerseyville, Tuesday, 8 December

Climate normal for this date — 60-year average.

Average high42°

Average low29°

Average precipitation0.07 in

Chance of precipitation30%

Record high69° (1991)

Record low-1° (2006)

Wed, 0942° / 29°

0.07

42 °

Jerseyville, Wednesday, 9 December

Climate normal for this date — 60-year average.

Average high42°

Average low29°

Average precipitation0.07 in

Chance of precipitation30%

Record high60° (2021)

Record low1° (1977)

Thu, 1042° / 27°

0.11

42 °

Jerseyville, Thursday, 10 December

Climate normal for this date — 60-year average.

Average high42°

Average low27°

Average precipitation0.11 in

Chance of precipitation25%

Record high64° (2021)

Record low-5° (1977)

Fri, 1142° / 27°

0.09

42 °

Jerseyville, Friday, 11 December

Climate normal for this date — 60-year average.

Average high42°

Average low27°

Average precipitation0.09 in

Chance of precipitation28%

Record high64° (2021)

Record low0° (1977)

Sat, 1242° / 29°

0.07

42 °

Jerseyville, Saturday, 12 December

Climate normal for this date — 60-year average.

Average high42°

Average low29°

Average precipitation0.07 in

Chance of precipitation23%

Record high68° (2015)

Record low1° (1962)

Sun, 1342° / 29°

0.07

42 °

Jerseyville, Sunday, 13 December

Climate normal for this date — 60-year average.

Average high42°

Average low29°

Average precipitation0.07 in

Chance of precipitation33%

Record high64° (2015)

Record low-3° (1961)

Mon, 1443° / 29°

0.12

43 °

Jerseyville, Monday, 14 December

Climate normal for this date — 60-year average.

Average high43°

Average low29°

Average precipitation0.12 in

Chance of precipitation35%

Record high65° (1975)

Record low2° (1985)

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.