As of 16:14 CDT

Weather in Marine, IL

93°

Marine, Tuesday, 13 October, 16:14

Partly cloudy. Feels like 100°. High 93°, low 67°.

Pressure29.85 inHg

Wind6 mph W

Humidity49%

Visibility6.2 mi

Dew point70°

See detailed hourly forecast

Monthly outlook for Marine, IL: average high 68.8°, average low 54.6°. That is 2.4° above the climate normal for October. Precipitation is expected on 6 days (about 5.1 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 13 October (93°), the coolest 17 October (41.6°).

68.8°/54.6°

Average high / low

+2.4°

Above normal

6 / 5

Wet days / normal

5.1 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
13 October – 22 October	72.6°	65.9°	+3.7°
23 October – 1 November	62.7°	62.1°	+0.3°
2 November – 11 November	at normal	57.3°	—

October records over 66 years

91.4°1 October 2019All-time high

28.6°24 October 1981All-time low

Climate normals and records are computed from the nearest reference point — Edwardsville (11 mi).

Wed, 1481° / 67°

0.04

81 °

Marine, Wednesday, 14 October

Light rain. High 81°, low 67°.

Pressure30.03 inHg

Wind3.3 mph W

Humidity76%

Visibility6.2 mi

Dew point70°

Thu, 1582° / 65°

1.11

82 °

Marine, Thursday, 15 October

Heavy rain. High 82°, low 65°.

Pressure29.97 inHg

Wind11.3 mph SW

Humidity85%

Visibility4.2 mi

Dew point72°

Fri, 1670° / 52°

0.04

70 °

Marine, Friday, 16 October

Light rain. High 70°, low 52°.

Pressure30.24 inHg

Wind21 mph NW

Humidity46%

Visibility6.2 mi

Dew point37°

Sat, 1758° / 42°

58 °

Marine, Saturday, 17 October

Clear. High 58°, low 42°.

Pressure30.53 inHg

Wind1.7 mph NE

Humidity49%

Visibility6.2 mi

Dew point35°

Sun, 1864° / 44°

64 °

Marine, Sunday, 18 October

Clear. High 64°, low 44°.

Pressure30.36 inHg

Wind8.6 mph S

Humidity42%

Visibility—

Dew point36°

Mon, 1958° / 51°

58 °

Marine, Monday, 19 October

Overcast. High 58°, low 51°.

Pressure30.30 inHg

Wind6.8 mph S

Humidity61%

Visibility—

Dew point43°

Tue, 2068° / 57°

68 °

Marine, Tuesday, 20 October

Overcast. High 68°, low 57°.

Pressure30.24 inHg

Wind7.8 mph SE

Humidity67%

Visibility—

Dew point56°

Wed, 2171° / 59°

71 °

Marine, Wednesday, 21 October

Overcast. High 71°, low 59°.

Pressure30.12 inHg

Wind6.4 mph SE

Humidity81%

Visibility—

Dew point60°

Thu, 2280° / 59°

80 °

Marine, Thursday, 22 October

Overcast. High 80°, low 59°.

Pressure29.91 inHg

Wind15.3 mph S

Humidity52%

Visibility—

Dew point57°

Fri, 2374° / 61°

0.48

74 °

Marine, Friday, 23 October

Rain. High 74°, low 61°.

Pressure29.94 inHg

Wind20.4 mph S

Humidity48%

Visibility—

Dew point52°

Sat, 2474° / 54°

74 °

Marine, Saturday, 24 October

Clear. High 74°, low 54°.

Pressure30.24 inHg

Wind7.7 mph E

Humidity41%

Visibility—

Dew point45°

Sun, 2560° / 53°

0.11

60 °

Marine, Sunday, 25 October

Light rain. High 60°, low 53°.

Pressure30.18 inHg

Wind13.8 mph SE

Humidity55%

Visibility—

Dew point43°

Mon, 2660° / 54°

0.52

60 °

Marine, Monday, 26 October

Rain. High 60°, low 54°.

Pressure29.97 inHg

Wind9.3 mph SE

Humidity93%

Visibility—

Dew point57°

Tue, 2755° / 48°

2.64

55 °

Marine, Tuesday, 27 October

Heavy rain. High 55°, low 48°.

Pressure30.00 inHg

Wind18.2 mph N

Humidity92%

Visibility—

Dew point47°

Wed, 2853° / 42°

53 °

Marine, Wednesday, 28 October

Light rain. High 53°, low 42°.

Pressure30.06 inHg

Wind10.9 mph N

Humidity54%

Visibility—

Dew point36°

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

Thu, 2961° / 46°

0.11

61 °

Marine, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high61°

Average low46°

Average precipitation0.11 in

Chance of precipitation30%

Record high81° (2004)

Record low31° (1980)

Fri, 3063° / 47°

0.12

63 °

Marine, Friday, 30 October

Climate normal for this date — 60-year average.

Average high63°

Average low47°

Average precipitation0.12 in

Chance of precipitation30%

Record high79° (1971)

Record low29° (1980)

Sat, 3162° / 47°

0.15

62 °

Marine, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high62°

Average low47°

Average precipitation0.15 in

Chance of precipitation38%

Record high79° (1968)

Record low29° (1993)

Sun, 0161° / 46°

0.18

61 °

Marine, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high61°

Average low46°

Average precipitation0.18 in

Chance of precipitation30%

Record high79° (2016)

Record low27° (1993)

Mon, 0260° / 45°

0.08

60 °

Marine, Monday, 2 November

Climate normal for this date — 60-year average.

Average high60°

Average low45°

Average precipitation0.08 in

Chance of precipitation30%

Record high79° (2016)

Record low27° (1966)

Tue, 0358° / 44°

0.11

58 °

Marine, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high58°

Average low44°

Average precipitation0.11 in

Chance of precipitation30%

Record high78° (1987)

Record low20° (1991)

Wed, 0457° / 45°

0.16

57 °

Marine, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high57°

Average low45°

Average precipitation0.16 in

Chance of precipitation28%

Record high76° (2022)

Record low20° (1991)

Thu, 0558° / 43°

0.16

58 °

Marine, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high58°

Average low43°

Average precipitation0.16 in

Chance of precipitation30%

Record high76° (1978)

Record low24° (1991)

Fri, 0657° / 42°

0.09

57 °

Marine, Friday, 6 November

Climate normal for this date — 60-year average.

Average high57°

Average low42°

Average precipitation0.09 in

Chance of precipitation33%

Record high77° (2023)

Record low28° (1982)

Sat, 0757° / 42°

0.08

57 °

Marine, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high57°

Average low42°

Average precipitation0.08 in

Chance of precipitation22%

Record high74° (1980)

Record low17° (1991)

Sun, 0857° / 42°

0.04

57 °

Marine, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high57°

Average low42°

Average precipitation0.04 in

Chance of precipitation17%

Record high80° (2023)

Record low4° (1991)

Mon, 0958° / 43°

0.1

58 °

Marine, Monday, 9 November

Climate normal for this date — 60-year average.

Average high58°

Average low43°

Average precipitation0.1 in

Chance of precipitation30%

Record high76° (2022)

Record low8° (1991)

Tue, 1056° / 41°

0.13

56 °

Marine, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high56°

Average low41°

Average precipitation0.13 in

Chance of precipitation30%

Record high74° (2020)

Record low20° (2018)

Wed, 1154° / 39°

0.11

54 °

Marine, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high54°

Average low39°

Average precipitation0.11 in

Chance of precipitation27%

Record high74° (1989)

Record low23° (2019)

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 Marine, 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 Marine, 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.