As of 20:01 CST

Weather in Tonica, IL

37°

Tonica, Saturday, 14 November, 20:01

Clear. Feels like 34°. High 46°, low 28°.

Pressure30.33 inHg

Wind4 mph NW

Humidity76%

Visibility6.2 mi

Dew point30°

See detailed hourly forecast

Monthly outlook for Tonica, IL: average high 49.7°, average low 34.5°. That is 1.7° above the climate normal for November. Precipitation is expected on 3 days (about 0.8 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 21 November (63°), the coolest 23 November (25.4°).

49.7°/34.5°

Average high / low

+1.7°

Above normal

3 / 5

Wet days / normal

0.8 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
14 November – 23 November	53.3°	48.3°	+2.8°
24 November – 3 December	43.6°	42.8°	+0.5°
4 December – 13 December	at normal	37.9°	—

November records over 66 years

77.4°1 November 2016All-time high

1.8°22 November 2015All-time low

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

Sun, 1551° / 29°

51 °

Tonica, Sunday, 15 November

Clear. High 51°, low 29°.

Pressure30.47 inHg

Wind1.8 mph W

Humidity56%

Visibility6.2 mi

Dew point32°

Mon, 1652° / 32°

52 °

Tonica, Monday, 16 November

Clear. High 52°, low 32°.

Pressure30.53 inHg

Wind6.6 mph SW

Humidity50%

Visibility6.2 mi

Dew point33°

Tue, 1755° / 35°

55 °

Tonica, Tuesday, 17 November

Mostly clear. High 55°, low 35°.

Pressure30.47 inHg

Wind8.5 mph SW

Humidity55%

Visibility6.2 mi

Dew point37°

Wed, 1857° / 40°

57 °

Tonica, Wednesday, 18 November

Overcast. High 57°, low 40°.

Pressure30.33 inHg

Wind13 mph S

Humidity56%

Visibility6.2 mi

Dew point40°

Thu, 1961° / 48°

61 °

Tonica, Thursday, 19 November

Overcast. High 61°, low 48°.

Pressure30.21 inHg

Wind12.8 mph SW

Humidity58%

Visibility—

Dew point44°

Fri, 2059° / 38°

59 °

Tonica, Friday, 20 November

Overcast. High 59°, low 38°.

Pressure30.27 inHg

Wind12.5 mph S

Humidity56%

Visibility—

Dew point38°

Sat, 2163° / 52°

63 °

Tonica, Saturday, 21 November

Overcast. High 63°, low 52°.

Pressure29.94 inHg

Wind20 mph S

Humidity49%

Visibility—

Dew point42°

Sun, 2253° / 32°

0.18

53 °

Tonica, Sunday, 22 November

Snow. High 53°, low 32°.

Pressure29.83 inHg

Wind25.4 mph NW

Humidity95%

Visibility—

Dew point35°

Mon, 2337° / 25°

37 °

Tonica, Monday, 23 November

Clear. High 37°, low 25°.

Pressure30.45 inHg

Wind15.7 mph N

Humidity55%

Visibility—

Dew point19°

Tue, 2438° / 26°

38 °

Tonica, Tuesday, 24 November

Mostly clear. High 38°, low 26°.

Pressure30.59 inHg

Wind7.8 mph N

Humidity62%

Visibility—

Dew point23°

Wed, 2539° / 25°

39 °

Tonica, Wednesday, 25 November

Overcast. High 39°, low 25°.

Pressure30.47 inHg

Wind9.3 mph SE

Humidity44%

Visibility—

Dew point16°

Thu, 2646° / 29°

46 °

Tonica, Thursday, 26 November

Overcast. High 46°, low 29°.

Pressure30.18 inHg

Wind10.8 mph SE

Humidity45%

Visibility—

Dew point21°

Fri, 2751° / 38°

0.43

51 °

Tonica, Friday, 27 November

Rain. High 51°, low 38°.

Pressure29.44 inHg

Wind22 mph E

Humidity89%

Visibility—

Dew point44°

Sat, 2850° / 36°

0.13

50 °

Tonica, Saturday, 28 November

Light rain. High 50°, low 36°.

Pressure29.35 inHg

Wind20.9 mph W

Humidity90%

Visibility—

Dew point37°

Sun, 2939° / 37°

0.01

39 °

Tonica, Sunday, 29 November

Light snow. High 39°, low 37°.

Pressure30.00 inHg

Wind20.8 mph W

Humidity74%

Visibility—

Dew point31°

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

Mon, 3042° / 29°

0.09

42 °

Tonica, Monday, 30 November

Climate normal for this date — 60-year average.

Average high42°

Average low29°

Average precipitation0.09 in

Chance of precipitation28%

Record high65° (1998)

Record low10° (1964)

Tue, 0140° / 28°

0.14

40 °

Tonica, Tuesday, 1 December

Climate normal for this date — 60-year average.

Average high40°

Average low28°

Average precipitation0.14 in

Chance of precipitation35%

Record high64° (1970)

Record low10° (1985)

Wed, 0241° / 28°

0.07

41 °

Tonica, Wednesday, 2 December

Climate normal for this date — 60-year average.

Average high41°

Average low28°

Average precipitation0.07 in

Chance of precipitation27%

Record high70° (1982)

Record low5° (2006)

Thu, 0341° / 28°

0.09

41 °

Tonica, Thursday, 3 December

Climate normal for this date — 60-year average.

Average high41°

Average low28°

Average precipitation0.09 in

Chance of precipitation33%

Record high70° (2012)

Record low4° (2006)

Fri, 0440° / 27°

0.07

40 °

Tonica, Friday, 4 December

Climate normal for this date — 60-year average.

Average high40°

Average low27°

Average precipitation0.07 in

Chance of precipitation25%

Record high69° (1998)

Record low-3° (1991)

Sat, 0540° / 26°

0.07

40 °

Tonica, Saturday, 5 December

Climate normal for this date — 60-year average.

Average high40°

Average low26°

Average precipitation0.07 in

Chance of precipitation27%

Record high67° (2001)

Record low-3° (2006)

Sun, 0638° / 25°

0.06

38 °

Tonica, Sunday, 6 December

Climate normal for this date — 60-year average.

Average high38°

Average low25°

Average precipitation0.06 in

Chance of precipitation22%

Record high64° (1980)

Record low-7° (1964)

Mon, 0737° / 25°

0.11

37 °

Tonica, Monday, 7 December

Climate normal for this date — 60-year average.

Average high37°

Average low25°

Average precipitation0.11 in

Chance of precipitation28%

Record high58° (1980)

Record low-8° (1977)

Tue, 0837° / 25°

0.06

37 °

Tonica, Tuesday, 8 December

Climate normal for this date — 60-year average.

Average high37°

Average low25°

Average precipitation0.06 in

Chance of precipitation22%

Record high65° (1991)

Record low-6° (2006)

Wed, 0938° / 24°

0.07

38 °

Tonica, Wednesday, 9 December

Climate normal for this date — 60-year average.

Average high38°

Average low24°

Average precipitation0.07 in

Chance of precipitation35%

Record high54° (1990)

Record low-7° (1977)

Thu, 1037° / 23°

0.09

37 °

Tonica, Thursday, 10 December

Climate normal for this date — 60-year average.

Average high37°

Average low23°

Average precipitation0.09 in

Chance of precipitation22%

Record high59° (2021)

Record low-11° (1977)

Fri, 1137° / 23°

0.09

37 °

Tonica, Friday, 11 December

Climate normal for this date — 60-year average.

Average high37°

Average low23°

Average precipitation0.09 in

Chance of precipitation30%

Record high60° (2021)

Record low-12° (1972)

Sat, 1237° / 24°

0.07

37 °

Tonica, Saturday, 12 December

Climate normal for this date — 60-year average.

Average high37°

Average low24°

Average precipitation0.07 in

Chance of precipitation25%

Record high65° (2015)

Record low-10° (2000)

Sun, 1338° / 24°

0.07

38 °

Tonica, Sunday, 13 December

Climate normal for this date — 60-year average.

Average high38°

Average low24°

Average precipitation0.07 in

Chance of precipitation30%

Record high62° (2015)

Record low-13° (2000)

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.