Monthly outlook for Coughlin, IL: average high 67.5°, average low 52.1°. That is 4.3° above the climate normal for October. Precipitation is expected on 5 days (about 1.7 inches), against a normal of 4 days and 1.5 inches. The warmest day looks like 27 October (76.4°), the coolest 17 October (37.5°).
67.5°/52.1°
Average high / low
+4.3°
Above normal
5 / 4
Wet days / normal
1.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
66.7°
61°
+3.2°
25 October – 3 November
68.7°
57°
+6.5°
4 November – 13 November
at normal
51.7°
—
October records over 66 years
89.1°3 October 2025All-time high
21°22 October 1976All-time low
Climate normals and records are computed from the nearest reference point — Peoria (12 mi).
Fri, 1656° / 47°0.04
56 °
Coughlin, Friday, 16 October
Light rain. High 56°, low 47°.
Pressure30.15 inHg
Wind17.6 mph NW
Humidity65%
Visibility6.1 mi
Dew point41°
Sat, 1757° / 38°0
57 °
Coughlin, Saturday, 17 October
Clear. High 57°, low 38°.
Pressure30.56 inHg
Wind2.4 mph SW
Humidity44%
Visibility6.2 mi
Dew point31°
Sun, 1862° / 42°0
62 °
Coughlin, Sunday, 18 October
Clear. High 62°, low 42°.
Pressure30.45 inHg
Wind12.4 mph S
Humidity48%
Visibility6.2 mi
Dew point39°
Mon, 1965° / 44°0
65 °
Coughlin, Monday, 19 October
Overcast. High 65°, low 44°.
Pressure30.33 inHg
Wind7.5 mph S
Humidity48%
Visibility—
Dew point40°
Tue, 2067° / 48°0.01
67 °
Coughlin, Tuesday, 20 October
Light rain. High 67°, low 48°.
Pressure30.30 inHg
Wind6.6 mph S
Humidity47%
Visibility—
Dew point43°
Wed, 2172° / 54°0
72 °
Coughlin, Wednesday, 21 October
Overcast. High 72°, low 54°.
Pressure30.33 inHg
Wind7.1 mph SE
Humidity48%
Visibility—
Dew point48°
Thu, 2271° / 55°0
71 °
Coughlin, Thursday, 22 October
Partly cloudy. High 71°, low 55°.
Pressure30.21 inHg
Wind9.7 mph S
Humidity42%
Visibility—
Dew point45°
Fri, 2374° / 56°0
74 °
Coughlin, Friday, 23 October
Overcast. High 74°, low 56°.
Pressure30.21 inHg
Wind13.1 mph SE
Humidity36%
Visibility—
Dew point42°
Sat, 2472° / 60°0
72 °
Coughlin, Saturday, 24 October
Light rain. High 72°, low 60°.
Pressure30.12 inHg
Wind16.5 mph S
Humidity41%
Visibility—
Dew point46°
Sun, 2564° / 49°0
64 °
Coughlin, Sunday, 25 October
Clear. High 64°, low 49°.
Pressure30.53 inHg
Wind11.8 mph NE
Humidity38%
Visibility—
Dew point36°
Mon, 2667° / 45°0
67 °
Coughlin, Monday, 26 October
Overcast. High 67°, low 45°.
Pressure30.45 inHg
Wind9.9 mph E
Humidity44%
Visibility—
Dew point39°
Tue, 2776° / 62°0.03
76 °
Coughlin, Tuesday, 27 October
Light rain. High 76°, low 62°.
Pressure30.12 inHg
Wind15.6 mph SW
Humidity40%
Visibility—
Dew point47°
Wed, 2862° / 59°0.3
62 °
Coughlin, Wednesday, 28 October
Rain. High 62°, low 59°.
Pressure30.00 inHg
Wind13.9 mph SW
Humidity88%
Visibility—
Dew point55°
Thu, 2968° / 60°0.09
68 °
Coughlin, Thursday, 29 October
Light rain. High 68°, low 60°.
Pressure29.94 inHg
Wind13.2 mph S
Humidity83%
Visibility—
Dew point59°
Fri, 3075° / 59°0.92
75 °
Coughlin, Friday, 30 October
Rain. High 75°, low 59°.
Pressure29.71 inHg
Wind22.7 mph W
Humidity68%
Visibility—
Dew point62°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3158° / 43°0.17
58 °
Coughlin, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high58°
Average low43°
Average precipitation0.17 in
Chance of precipitation42%
Record high74° (1974)
Record low24° (2019)
Sun, 0157° / 42°0.18
57 °
Coughlin, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.18 in
Chance of precipitation32%
Record high77° (2016)
Record low22° (2019)
Mon, 0255° / 41°0.08
55 °
Coughlin, Monday, 2 November
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.08 in
Chance of precipitation33%
Record high75° (1961)
Record low23° (1991)
Tue, 0354° / 40°0.09
54 °
Coughlin, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.09 in
Chance of precipitation23%
Record high74° (1964)
Record low17° (1991)
Wed, 0454° / 41°0.08
54 °
Coughlin, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high54°
Average low41°
Average precipitation0.08 in
Chance of precipitation23%
Record high74° (1978)
Record low16° (1991)
Thu, 0553° / 39°0.13
53 °
Coughlin, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.13 in
Chance of precipitation25%
Record high74° (1978)
Record low19° (1991)
Fri, 0653° / 38°0.09
53 °
Coughlin, Friday, 6 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.09 in
Chance of precipitation25%
Record high71° (2020)
Record low24° (1991)
Sat, 0753° / 38°0.04
53 °
Coughlin, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.04 in
Chance of precipitation17%
Record high69° (1966)
Record low15° (1991)
Sun, 0853° / 38°0.05
53 °
Coughlin, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.05 in
Chance of precipitation20%
Record high75° (1999)
Record low12° (1991)
Mon, 0954° / 39°0.14
54 °
Coughlin, Monday, 9 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.14 in
Chance of precipitation35%
Record high74° (2020)
Record low16° (1991)
Tue, 1051° / 37°0.15
51 °
Coughlin, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.15 in
Chance of precipitation32%
Record high73° (2020)
Record low17° (2018)
Wed, 1149° / 35°0.07
49 °
Coughlin, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.07 in
Chance of precipitation27%
Record high73° (1964)
Record low17° (2019)
Thu, 1248° / 33°0.07
48 °
Coughlin, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.07 in
Chance of precipitation25%
Record high70° (2010)
Record low9° (2019)
Fri, 1349° / 34°0.06
49 °
Coughlin, Friday, 13 November
Climate normal for this date — 60-year average.
Average high49°
Average low34°
Average precipitation0.06 in
Chance of precipitation15%
Record high72° (1999)
Record low7° (1986)
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 Coughlin, 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 Coughlin, 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.