As of 08:02 CDT

Weather in Tonica, IL

60°

Tonica, Thursday, 29 October, 08:02

Overcast. Feels like 59°. High 69°, low 51°.

Pressure30.06 inHg

Wind8 mph SW

Humidity75%

Visibility6.2 mi

Dew point52°

See detailed hourly forecast

Monthly outlook for Tonica, IL: average high 60.9°, average low 48.8°. That is 3.9° above the climate normal for October. Precipitation is expected on 5 days (about 1.5 inches), against a normal of 4 days and 1.5 inches. The warmest day looks like 29 October (69.2°), the coolest 6 November (37.4°).

60.9°/48.8°

Average high / low

+3.9°

Above normal

5 / 4

Wet days / normal

1.5 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
29 October – 7 November	61°	55.7°	+3°
8 November – 17 November	60.7°	50.2°	+5.8°
18 November – 27 November	at normal	46.5°	—

October records over 66 years

89.2°7 October 2007All-time high

21.9°22 October 1976All-time low

Climate normals and records are computed from the nearest reference point — Toluca (15 mi).

Fri, 3065° / 48°

0.01

65 °

Tonica, Friday, 30 October

Light rain. High 65°, low 48°.

Pressure30.33 inHg

Wind6.3 mph E

Humidity54%

Visibility6.2 mi

Dew point45°

Sat, 3156° / 51°

0.37

56 °

Tonica, Saturday, 31 October

Rain. High 56°, low 51°.

Pressure30.33 inHg

Wind7.6 mph SE

Humidity89%

Visibility4.3 mi

Dew point51°

Sun, 0165° / 51°

65 °

Tonica, Sunday, 1 November

Overcast. High 65°, low 51°.

Pressure30.30 inHg

Wind5.6 mph E

Humidity62%

Visibility6.2 mi

Dew point50°

Mon, 0263° / 53°

0.08

63 °

Tonica, Monday, 2 November

Light rain. High 63°, low 53°.

Pressure30.06 inHg

Wind12 mph S

Humidity74%

Visibility—

Dew point52°

Tue, 0369° / 61°

0.28

69 °

Tonica, Tuesday, 3 November

Rain. High 69°, low 61°.

Pressure29.83 inHg

Wind18.1 mph SE

Humidity93%

Visibility—

Dew point62°

Wed, 0467° / 51°

0.2

67 °

Tonica, Wednesday, 4 November

Light rain. High 67°, low 51°.

Pressure29.59 inHg

Wind21.8 mph S

Humidity85%

Visibility—

Dew point58°

Thu, 0551° / 42°

51 °

Tonica, Thursday, 5 November

Clear. High 51°, low 42°.

Pressure29.85 inHg

Wind15.6 mph W

Humidity42%

Visibility—

Dew point27°

Fri, 0652° / 37°

52 °

Tonica, Friday, 6 November

Clear. High 52°, low 37°.

Pressure30.00 inHg

Wind12.2 mph W

Humidity35%

Visibility—

Dew point22°

Sat, 0753° / 38°

53 °

Tonica, Saturday, 7 November

Overcast. High 53°, low 38°.

Pressure30.18 inHg

Wind8.3 mph E

Humidity45%

Visibility—

Dew point28°

Sun, 0864° / 47°

64 °

Tonica, Sunday, 8 November

Overcast. High 64°, low 47°.

Pressure30.06 inHg

Wind13.2 mph SE

Humidity61%

Visibility—

Dew point45°

Mon, 0956° / 51°

0.54

56 °

Tonica, Monday, 9 November

Rain. High 56°, low 51°.

Pressure29.83 inHg

Wind14.3 mph SE

Humidity85%

Visibility—

Dew point48°

Tue, 1052° / 48°

0.03

52 °

Tonica, Tuesday, 10 November

Light rain. High 52°, low 48°.

Pressure30.06 inHg

Wind9.9 mph N

Humidity87%

Visibility—

Dew point47°

Wed, 1158° / 51°

58 °

Tonica, Wednesday, 11 November

Overcast. High 58°, low 51°.

Pressure30.09 inHg

Wind9.8 mph SW

Humidity65%

Visibility—

Dew point44°

Thu, 1265° / 48°

65 °

Tonica, Thursday, 12 November

Overcast. High 65°, low 48°.

Pressure29.91 inHg

Wind10.9 mph W

Humidity51%

Visibility—

Dew point43°

Fri, 1369° / 52°

69 °

Tonica, Friday, 13 November

Partly cloudy. High 69°, low 52°.

Pressure29.83 inHg

Wind9.2 mph SW

Humidity54%

Visibility—

Dew point48°

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

Sat, 1450° / 34°

0.07

50 °

Tonica, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high50°

Average low34°

Average precipitation0.07 in

Chance of precipitation32%

Record high73° (1971)

Record low14° (1986)

Sun, 1549° / 35°

0.08

49 °

Tonica, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high49°

Average low35°

Average precipitation0.08 in

Chance of precipitation28%

Record high69° (2025)

Record low19° (1982)

Mon, 1649° / 34°

0.06

49 °

Tonica, Monday, 16 November

Climate normal for this date — 60-year average.

Average high49°

Average low34°

Average precipitation0.06 in

Chance of precipitation20%

Record high70° (1971)

Record low21° (1997)

Tue, 1750° / 35°

0.11

50 °

Tonica, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high50°

Average low35°

Average precipitation0.11 in

Chance of precipitation25%

Record high74° (2016)

Record low15° (2005)

Wed, 1850° / 35°

0.12

50 °

Tonica, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high50°

Average low35°

Average precipitation0.12 in

Chance of precipitation30%

Record high70° (1999)

Record low12° (2014)

Thu, 1949° / 35°

0.07

49 °

Tonica, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high49°

Average low35°

Average precipitation0.07 in

Chance of precipitation28%

Record high68° (1979)

Record low16° (2018)

Fri, 2048° / 34°

0.09

48 °

Tonica, Friday, 20 November

Climate normal for this date — 60-year average.

Average high48°

Average low34°

Average precipitation0.09 in

Chance of precipitation32%

Record high67° (2007)

Record low15° (2022)

Sat, 2146° / 32°

0.1

46 °

Tonica, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high46°

Average low32°

Average precipitation0.1 in

Chance of precipitation30%

Record high68° (1990)

Record low9° (1964)

Sun, 2247° / 31°

0.04

47 °

Tonica, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high47°

Average low31°

Average precipitation0.04 in

Chance of precipitation22%

Record high71° (2010)

Record low2° (2015)

Mon, 2346° / 32°

0.07

46 °

Tonica, Monday, 23 November

Climate normal for this date — 60-year average.

Average high46°

Average low32°

Average precipitation0.07 in

Chance of precipitation25%

Record high66° (2003)

Record low12° (1970)

Tue, 2445° / 31°

0.08

45 °

Tonica, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high45°

Average low31°

Average precipitation0.08 in

Chance of precipitation23%

Record high67° (1966)

Record low12° (1970)

Wed, 2545° / 31°

0.07

45 °

Tonica, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high45°

Average low31°

Average precipitation0.07 in

Chance of precipitation30%

Record high64° (2006)

Record low12° (1977)

Thu, 2646° / 31°

0.14

46 °

Tonica, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high46°

Average low31°

Average precipitation0.14 in

Chance of precipitation38%

Record high68° (1965)

Record low5° (1977)

Fri, 2744° / 31°

0.21

44 °

Tonica, Friday, 27 November

Climate normal for this date — 60-year average.

Average high44°

Average low31°

Average precipitation0.21 in

Chance of precipitation43%

Record high66° (1990)

Record low9° (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 Tonica, 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 Tonica, 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.