Monthly outlook for Summer Hill, IL: average high 68.4°, average low 52.1°. That is 5° above the climate normal for October. Precipitation is expected on 2 days (about 0.9 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 30 October (80.2°), the coolest 4 November (39.3°).
68.4°/52.1°
Average high / low
+5°
Above normal
2 / 5
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
24 October – 2 November
71.2°
61°
+5.7°
3 November – 12 November
63.9°
56°
+4.4°
13 November – 22 November
at normal
52.5°
—
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).
Sun, 2575° / 47°0
75 °
Summer Hill, Sunday, 25 October
Overcast. High 75°, low 47°.
Pressure30.39 inHg
Wind3.8 mph S
Humidity51%
Visibility6.2 mi
Dew point50°
Mon, 2672° / 52°0
72 °
Summer Hill, Monday, 26 October
Overcast. High 72°, low 52°.
Pressure30.30 inHg
Wind3.4 mph S
Humidity54%
Visibility6.2 mi
Dew point52°
Tue, 2769° / 53°0
69 °
Summer Hill, Tuesday, 27 October
Overcast. High 69°, low 53°.
Pressure30.21 inHg
Wind8 mph S
Humidity55%
Visibility6.2 mi
Dew point50°
Wed, 2874° / 54°0
74 °
Summer Hill, Wednesday, 28 October
Clear. High 74°, low 54°.
Pressure30.18 inHg
Wind8.2 mph S
Humidity55%
Visibility6.2 mi
Dew point52°
Thu, 2977° / 58°0
77 °
Summer Hill, Thursday, 29 October
Partly cloudy. High 77°, low 58°.
Pressure30.15 inHg
Wind9 mph S
Humidity55%
Visibility—
Dew point54°
Fri, 3080° / 60°0
80 °
Summer Hill, Friday, 30 October
Overcast. High 80°, low 60°.
Pressure30.18 inHg
Wind6.6 mph SE
Humidity41%
Visibility—
Dew point50°
Sat, 3167° / 64°0
67 °
Summer Hill, Saturday, 31 October
Light rain. High 67°, low 64°.
Pressure30.15 inHg
Wind10 mph SE
Humidity43%
Visibility—
Dew point44°
Sun, 0167° / 58°0.49
67 °
Summer Hill, Sunday, 1 November
Rain. High 67°, low 58°.
Pressure29.83 inHg
Wind19.7 mph S
Humidity76%
Visibility—
Dew point56°
Mon, 0256° / 48°0.04
56 °
Summer Hill, Monday, 2 November
Light rain. High 56°, low 48°.
Pressure29.83 inHg
Wind24.2 mph N
Humidity70%
Visibility—
Dew point45°
Tue, 0359° / 41°0
59 °
Summer Hill, Tuesday, 3 November
Clear. High 59°, low 41°.
Pressure30.12 inHg
Wind15.1 mph N
Humidity35%
Visibility—
Dew point29°
Wed, 0458° / 39°0
58 °
Summer Hill, Wednesday, 4 November
Overcast. High 58°, low 39°.
Pressure30.18 inHg
Wind9.3 mph SE
Humidity34%
Visibility—
Dew point26°
Thu, 0569° / 48°0
69 °
Summer Hill, Thursday, 5 November
Overcast. High 69°, low 48°.
Pressure30.15 inHg
Wind15.9 mph S
Humidity31%
Visibility—
Dew point33°
Fri, 0665° / 58°0.01
65 °
Summer Hill, Friday, 6 November
Light rain. High 65°, low 58°.
Pressure30.09 inHg
Wind15.3 mph S
Humidity38%
Visibility—
Dew point38°
Sat, 0768° / 57°0.37
68 °
Summer Hill, Saturday, 7 November
Light rain. High 68°, low 57°.
Pressure29.97 inHg
Wind17.5 mph SW
Humidity65%
Visibility—
Dew point54°
Sun, 0864° / 48°0.02
64 °
Summer Hill, Sunday, 8 November
Light rain. High 64°, low 48°.
Pressure30.15 inHg
Wind18 mph NW
Humidity29%
Visibility—
Dew point29°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0958° / 43°0.11
58 °
Summer Hill, Monday, 9 November
Climate normal for this date — 60-year average.
Average high58°
Average low43°
Average precipitation0.11 in
Chance of precipitation32%
Record high76° (2022)
Record low8° (1991)
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)
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.