Monthly outlook for Hecker, IL: average high 77.5°, average low 56°. That is 4.9° above the climate normal for October. Precipitation is expected on 4 days (about 2.0 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 15 October (95.1°), the coolest 18 October (41°).
77.5°/56°
Average high / low
+4.9°
Above normal
4 / 4
Wet days / normal
2.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
7 October – 16 October
84.3°
70.1°
+7.9°
17 October – 26 October
66.2°
65.5°
+0.3°
27 October – 5 November
at normal
61.7°
—
October records over 66 years
93.6°1 October 2019All-time high
28.9°31 October 2023All-time low
Climate normals and records are computed from the nearest reference point — Red Bud (7 mi).
Thu, 0883° / 52°0
83 °
Hecker, Thursday, 8 October
Clear. High 83°, low 52°.
Pressure30.12 inHg
Wind4.8 mph SE
Humidity30%
Visibility6.2 mi
Dew point44°
Fri, 0984° / 53°0
84 °
Hecker, Friday, 9 October
Clear. High 84°, low 53°.
Pressure30.15 inHg
Wind9.3 mph S
Humidity29%
Visibility6.2 mi
Dew point46°
Sat, 1083° / 62°0.01
83 °
Hecker, Saturday, 10 October
Light rain. High 83°, low 62°.
Pressure30.12 inHg
Wind8.3 mph SE
Humidity36%
Visibility6.2 mi
Dew point53°
Sun, 1168° / 61°0.75
68 °
Hecker, Sunday, 11 October
Rain. High 68°, low 61°.
Pressure29.88 inHg
Wind5.3 mph NE
Humidity81%
Visibility6.2 mi
Dew point60°
Mon, 1287° / 58°0
87 °
Hecker, Monday, 12 October
Clear. High 87°, low 58°.
Pressure29.91 inHg
Wind10.7 mph S
Humidity52%
Visibility—
Dew point60°
Tue, 1388° / 70°0
88 °
Hecker, Tuesday, 13 October
Mostly clear. High 88°, low 70°.
Pressure29.91 inHg
Wind14.2 mph NW
Humidity42%
Visibility—
Dew point60°
Wed, 1492° / 61°0
92 °
Hecker, Wednesday, 14 October
Clear. High 92°, low 61°.
Pressure29.91 inHg
Wind12.5 mph S
Humidity38%
Visibility—
Dew point55°
Thu, 1595° / 74°0.1
95 °
Hecker, Thursday, 15 October
Light rain. High 95°, low 74°.
Pressure29.83 inHg
Wind19.7 mph SW
Humidity36%
Visibility—
Dew point61°
Fri, 1675° / 58°0
75 °
Hecker, Friday, 16 October
Overcast. High 75°, low 58°.
Pressure30.27 inHg
Wind14.1 mph N
Humidity37%
Visibility—
Dew point44°
Sat, 1763° / 48°0
63 °
Hecker, Saturday, 17 October
Overcast. High 63°, low 48°.
Pressure30.36 inHg
Wind13.4 mph N
Humidity35%
Visibility—
Dew point30°
Sun, 1864° / 41°0
64 °
Hecker, Sunday, 18 October
Overcast. High 64°, low 41°.
Pressure30.39 inHg
Wind6.8 mph NE
Humidity30%
Visibility—
Dew point27°
Mon, 1969° / 42°0
69 °
Hecker, Monday, 19 October
Mostly clear. High 69°, low 42°.
Pressure30.39 inHg
Wind11.6 mph SE
Humidity21%
Visibility—
Dew point22°
Tue, 2076° / 51°0
76 °
Hecker, Tuesday, 20 October
Overcast. High 76°, low 51°.
Pressure30.30 inHg
Wind11.7 mph S
Humidity37%
Visibility—
Dew point44°
Wed, 2163° / 58°0.46
63 °
Hecker, Wednesday, 21 October
Rain. High 63°, low 58°.
Pressure30.12 inHg
Wind10.6 mph S
Humidity91%
Visibility—
Dew point57°
Thu, 2262° / 51°0.67
62 °
Hecker, Thursday, 22 October
Rain. High 62°, low 51°.
Pressure29.80 inHg
Wind11.9 mph N
Humidity85%
Visibility—
Dew point50°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2366° / 50°0.13
66 °
Hecker, Friday, 23 October
Climate normal for this date — 60-year average.
Average high66°
Average low50°
Average precipitation0.13 in
Chance of precipitation35%
Record high82° (1963)
Record low35° (1982)
Sat, 2464° / 50°0.1
64 °
Hecker, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high64°
Average low50°
Average precipitation0.1 in
Chance of precipitation25%
Record high80° (2012)
Record low29° (1981)
Sun, 2564° / 49°0.13
64 °
Hecker, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high64°
Average low49°
Average precipitation0.13 in
Chance of precipitation30%
Record high81° (1963)
Record low33° (2013)
Mon, 2663° / 48°0.17
63 °
Hecker, Monday, 26 October
Climate normal for this date — 60-year average.
Average high63°
Average low48°
Average precipitation0.17 in
Chance of precipitation37%
Record high82° (1963)
Record low31° (1962)
Tue, 2763° / 48°0.11
63 °
Hecker, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high63°
Average low48°
Average precipitation0.11 in
Chance of precipitation25%
Record high82° (2023)
Record low35° (2001)
Wed, 2863° / 47°0.06
63 °
Hecker, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high63°
Average low47°
Average precipitation0.06 in
Chance of precipitation25%
Record high80° (1999)
Record low32° (1976)
Thu, 2962° / 47°0.12
62 °
Hecker, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high62°
Average low47°
Average precipitation0.12 in
Chance of precipitation30%
Record high81° (2004)
Record low31° (2017)
Fri, 3064° / 48°0.12
64 °
Hecker, Friday, 30 October
Climate normal for this date — 60-year average.
Average high64°
Average low48°
Average precipitation0.12 in
Chance of precipitation32%
Record high80° (1971)
Record low31° (1980)
Sat, 3164° / 49°0.17
64 °
Hecker, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high64°
Average low49°
Average precipitation0.17 in
Chance of precipitation40%
Record high80° (1968)
Record low29° (2023)
Sun, 0162° / 48°0.15
62 °
Hecker, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high62°
Average low48°
Average precipitation0.15 in
Chance of precipitation32%
Record high81° (2016)
Record low27° (2023)
Mon, 0261° / 46°0.09
61 °
Hecker, Monday, 2 November
Climate normal for this date — 60-year average.
Average high61°
Average low46°
Average precipitation0.09 in
Chance of precipitation33%
Record high80° (2016)
Record low28° (1966)
Tue, 0360° / 45°0.09
60 °
Hecker, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high60°
Average low45°
Average precipitation0.09 in
Chance of precipitation32%
Record high78° (1987)
Record low23° (1991)
Wed, 0459° / 46°0.13
59 °
Hecker, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high59°
Average low46°
Average precipitation0.13 in
Chance of precipitation27%
Record high78° (2003)
Record low21° (1991)
Thu, 0559° / 44°0.15
59 °
Hecker, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high59°
Average low44°
Average precipitation0.15 in
Chance of precipitation33%
Record high78° (1978)
Record low25° (1991)
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 Hecker, 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 Hecker, 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.