Monthly outlook for Summer Hill, IL: average high 70.6°, average low 54.6°. That is 6.3° above the climate normal for October. Precipitation is expected on 4 days (about 3.3 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 29 October (79.2°), the coolest 9 November (42.5°).
70.6°/54.6°
Average high / low
+6.3°
Above normal
4 / 5
Wet days / normal
3.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
25 October – 3 November
74.7°
60.5°
+7.9°
4 November – 13 November
63.7°
55.5°
+4.5°
14 November – 23 November
at normal
52.3°
—
October records over 66 years
92.7°10 October 1963All-time high
28.2°31 October 1993All-time low
Climate normals and records are computed from the nearest reference point — Louisiana (10 mi).
Mon, 2676° / 52°0
76 °
Summer Hill, Monday, 26 October
Overcast. High 76°, low 52°.
Pressure30.30 inHg
Wind3.4 mph SW
Humidity50%
Visibility6.2 mi
Dew point51°
Tue, 2772° / 53°0
72 °
Summer Hill, Tuesday, 27 October
Overcast. High 72°, low 53°.
Pressure30.21 inHg
Wind8.6 mph S
Humidity51%
Visibility6.2 mi
Dew point50°
Wed, 2877° / 55°0.02
77 °
Summer Hill, Wednesday, 28 October
Light rain. High 77°, low 55°.
Pressure30.18 inHg
Wind8.1 mph S
Humidity53%
Visibility6.2 mi
Dew point53°
Thu, 2979° / 59°0
79 °
Summer Hill, Thursday, 29 October
Overcast. High 79°, low 59°.
Pressure30.15 inHg
Wind9.5 mph S
Humidity49%
Visibility—
Dew point54°
Fri, 3077° / 60°0
77 °
Summer Hill, Friday, 30 October
Overcast. High 77°, low 60°.
Pressure30.12 inHg
Wind10 mph S
Humidity44%
Visibility—
Dew point51°
Sat, 3178° / 65°0.05
78 °
Summer Hill, Saturday, 31 October
Light rain. High 78°, low 65°.
Pressure30.00 inHg
Wind16 mph S
Humidity44%
Visibility—
Dew point52°
Sun, 0176° / 66°0.06
76 °
Summer Hill, Sunday, 1 November
Light rain. High 76°, low 66°.
Pressure29.91 inHg
Wind17.2 mph SW
Humidity59%
Visibility—
Dew point59°
Mon, 0274° / 58°0
74 °
Summer Hill, Monday, 2 November
Overcast. High 74°, low 58°.
Pressure30.09 inHg
Wind8.3 mph N
Humidity45%
Visibility—
Dew point49°
Tue, 0362° / 52°2.13
62 °
Summer Hill, Tuesday, 3 November
Heavy rain. High 62°, low 52°.
Pressure30.06 inHg
Wind19.1 mph E
Humidity92%
Visibility—
Dew point51°
Wed, 0458° / 53°1.08
58 °
Summer Hill, Wednesday, 4 November
Heavy rain. High 58°, low 53°.
Pressure29.74 inHg
Wind15.1 mph E
Humidity86%
Visibility—
Dew point51°
Thu, 0562° / 47°0
62 °
Summer Hill, Thursday, 5 November
Overcast. High 62°, low 47°.
Pressure30.12 inHg
Wind10.1 mph W
Humidity45%
Visibility—
Dew point37°
Fri, 0671° / 49°0
71 °
Summer Hill, Friday, 6 November
Partly cloudy. High 71°, low 49°.
Pressure29.88 inHg
Wind14.3 mph S
Humidity49%
Visibility—
Dew point46°
Sat, 0775° / 62°0
75 °
Summer Hill, Saturday, 7 November
Overcast. High 75°, low 62°.
Pressure29.65 inHg
Wind14.7 mph SW
Humidity45%
Visibility—
Dew point51°
Sun, 0861° / 50°0
61 °
Summer Hill, Sunday, 8 November
Partly cloudy. High 61°, low 50°.
Pressure30.06 inHg
Wind12.8 mph NW
Humidity35%
Visibility—
Dew point32°
Mon, 0954° / 43°0
54 °
Summer Hill, Monday, 9 November
Clear. High 54°, low 43°.
Pressure30.30 inHg
Wind9.8 mph N
Humidity35%
Visibility—
Dew point26°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 1055° / 40°0.14
55 °
Summer Hill, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.14 in
Chance of precipitation32%
Record high75° (2012)
Record low18° (2018)
Wed, 1153° / 38°0.07
53 °
Summer Hill, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.07 in
Chance of precipitation30%
Record high77° (1964)
Record low19° (2019)
Thu, 1252° / 37°0.07
52 °
Summer Hill, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.07 in
Chance of precipitation22%
Record high72° (1999)
Record low10° (2019)
Fri, 1353° / 38°0.05
53 °
Summer Hill, Friday, 13 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.05 in
Chance of precipitation13%
Record high76° (1999)
Record low11° (1986)
Sat, 1454° / 39°0.06
54 °
Summer Hill, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.06 in
Chance of precipitation25%
Record high77° (2025)
Record low15° (1986)
Sun, 1553° / 39°0.09
53 °
Summer Hill, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.09 in
Chance of precipitation33%
Record high75° (2025)
Record low22° (2019)
Mon, 1653° / 38°0.08
53 °
Summer Hill, Monday, 16 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.08 in
Chance of precipitation23%
Record high72° (2001)
Record low23° (1997)
Tue, 1754° / 39°0.15
54 °
Summer Hill, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.15 in
Chance of precipitation30%
Record high76° (2016)
Record low20° (2014)
Wed, 1853° / 40°0.14
53 °
Summer Hill, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.14 in
Chance of precipitation30%
Record high73° (1999)
Record low15° (2014)
Thu, 1953° / 39°0.09
53 °
Summer Hill, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.09 in
Chance of precipitation23%
Record high72° (1979)
Record low21° (2022)
Fri, 2051° / 38°0.13
51 °
Summer Hill, Friday, 20 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.13 in
Chance of precipitation28%
Record high74° (2007)
Record low20° (2022)
Sat, 2150° / 37°0.09
50 °
Summer Hill, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.09 in
Chance of precipitation25%
Record high68° (1990)
Record low14° (1964)
Sun, 2251° / 36°0.07
51 °
Summer Hill, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.07 in
Chance of precipitation27%
Record high70° (2010)
Record low18° (1964)
Mon, 2351° / 36°0.08
51 °
Summer Hill, Monday, 23 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.08 in
Chance of precipitation25%
Record high69° (1966)
Record low15° (1970)
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 Summer Hill, 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 Summer Hill, 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.