Monthly outlook for Summer Hill, IL: average high 62.7°, average low 48.9°. That is 2.8° above the climate normal for October. Precipitation is expected on 9 days (about 2.4 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 29 October (77.4°), the coolest 8 November (36.3°).
62.7°/48.9°
Average high / low
+2.8°
Above normal
9 / 5
Wet days / normal
2.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
28 October – 6 November
66.3°
59.2°
+4°
7 November – 16 November
56.6°
54.4°
+1.2°
17 November – 26 November
at normal
51.1°
—
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).
Thu, 2977° / 54°0
77 °
Summer Hill, Thursday, 29 October
Clear. High 77°, low 54°.
Pressure30.12 inHg
Wind7.7 mph W
Humidity57%
Visibility6.2 mi
Dew point57°
Fri, 3071° / 57°0.14
71 °
Summer Hill, Friday, 30 October
Rain. High 71°, low 57°.
Pressure30.24 inHg
Wind5.5 mph SE
Humidity83%
Visibility2.1 mi
Dew point61°
Sat, 3169° / 60°0.04
69 °
Summer Hill, Saturday, 31 October
Light rain. High 69°, low 60°.
Pressure30.24 inHg
Wind3 mph NE
Humidity76%
Visibility6.2 mi
Dew point59°
Sun, 0174° / 59°0
74 °
Summer Hill, Sunday, 1 November
Overcast. High 74°, low 59°.
Pressure30.24 inHg
Wind9.5 mph SE
Humidity59%
Visibility—
Dew point55°
Mon, 0271° / 61°0.56
71 °
Summer Hill, Monday, 2 November
Heavy rain. High 71°, low 61°.
Pressure30.03 inHg
Wind14.7 mph SE
Humidity67%
Visibility—
Dew point57°
Tue, 0365° / 50°0.35
65 °
Summer Hill, Tuesday, 3 November
Rain. High 65°, low 50°.
Pressure29.71 inHg
Wind15.1 mph SE
Humidity64%
Visibility—
Dew point45°
Wed, 0456° / 47°0.13
56 °
Summer Hill, Wednesday, 4 November
Light rain. High 56°, low 47°.
Pressure29.80 inHg
Wind12.9 mph NW
Humidity91%
Visibility—
Dew point52°
Thu, 0555° / 51°0.91
55 °
Summer Hill, Thursday, 5 November
Rain. High 55°, low 51°.
Pressure29.62 inHg
Wind21 mph NW
Humidity92%
Visibility—
Dew point52°
Fri, 0651° / 38°0
51 °
Summer Hill, Friday, 6 November
Clear. High 51°, low 38°.
Pressure30.15 inHg
Wind16.3 mph N
Humidity51%
Visibility—
Dew point30°
Sat, 0751° / 38°0
51 °
Summer Hill, Saturday, 7 November
Overcast. High 51°, low 38°.
Pressure30.27 inHg
Wind5.9 mph NE
Humidity49%
Visibility—
Dew point29°
Sun, 0856° / 36°0
56 °
Summer Hill, Sunday, 8 November
Clear. High 56°, low 36°.
Pressure30.24 inHg
Wind7.2 mph S
Humidity40%
Visibility—
Dew point28°
Mon, 0959° / 40°0
59 °
Summer Hill, Monday, 9 November
Overcast. High 59°, low 40°.
Pressure30.18 inHg
Wind11.4 mph S
Humidity36%
Visibility—
Dew point28°
Tue, 1059° / 40°0.17
59 °
Summer Hill, Tuesday, 10 November
Rain. High 59°, low 40°.
Pressure29.97 inHg
Wind14.2 mph S
Humidity49%
Visibility—
Dew point36°
Wed, 1157° / 47°0.08
57 °
Summer Hill, Wednesday, 11 November
Light rain. High 57°, low 47°.
Pressure29.80 inHg
Wind13.8 mph W
Humidity51%
Visibility—
Dew point37°
Thu, 1258° / 48°0.05
58 °
Summer Hill, Thursday, 12 November
Light rain. High 58°, low 48°.
Pressure29.47 inHg
Wind18.1 mph S
Humidity61%
Visibility—
Dew point43°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Tue, 2449° / 35°0.11
49 °
Summer Hill, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.11 in
Chance of precipitation25%
Record high70° (1966)
Record low16° (1970)
Wed, 2549° / 35°0.09
49 °
Summer Hill, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.09 in
Chance of precipitation30%
Record high68° (2006)
Record low18° (1977)
Thu, 2649° / 36°0.15
49 °
Summer Hill, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.15 in
Chance of precipitation38%
Record high75° (1965)
Record low13° (1977)
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.