Monthly outlook for Thebes, IL: average high 71.2°, average low 52.8°. That is 4.4° above the climate normal for October. Precipitation is expected on 3 days (about 1.6 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 29 October (78.6°), the coolest 5 November (40.7°).
71.2°/52.8°
Average high / low
+4.4°
Above normal
3 / 5
Wet days / normal
1.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
22 October – 31 October
74.5°
64.7°
+5.4°
1 November – 10 November
65.7°
60.4°
+2.9°
11 November – 20 November
at normal
55.9°
—
October records over 66 years
91°2 October 2019All-time high
29.8°31 October 2023All-time low
Climate normals and records are computed from the nearest reference point — Scott City (5 mi).
Fri, 2374° / 48°0
74 °
Thebes, Friday, 23 October
Clear. High 74°, low 48°.
Pressure30.27 inHg
Wind4.8 mph SE
Humidity45%
Visibility6.2 mi
Dew point48°
Sat, 2474° / 47°0
74 °
Thebes, Saturday, 24 October
Overcast. High 74°, low 47°.
Pressure30.33 inHg
Wind3.6 mph SE
Humidity50%
Visibility6.2 mi
Dew point49°
Sun, 2575° / 52°0
75 °
Thebes, Sunday, 25 October
Overcast. High 75°, low 52°.
Pressure30.39 inHg
Wind2.5 mph SW
Humidity49%
Visibility6.2 mi
Dew point52°
Mon, 2673° / 53°0
73 °
Thebes, Monday, 26 October
Overcast. High 73°, low 53°.
Pressure30.33 inHg
Wind1.2 mph S
Humidity50%
Visibility6.2 mi
Dew point51°
Tue, 2772° / 52°0
72 °
Thebes, Tuesday, 27 October
Overcast. High 72°, low 52°.
Pressure30.27 inHg
Wind3.9 mph E
Humidity45%
Visibility—
Dew point47°
Wed, 2876° / 53°0
76 °
Thebes, Wednesday, 28 October
Clear. High 76°, low 53°.
Pressure30.15 inHg
Wind8.2 mph S
Humidity40%
Visibility—
Dew point45°
Thu, 2979° / 56°0
79 °
Thebes, Thursday, 29 October
Overcast. High 79°, low 56°.
Pressure30.21 inHg
Wind12.9 mph S
Humidity24%
Visibility—
Dew point35°
Fri, 3077° / 61°0
77 °
Thebes, Friday, 30 October
Overcast. High 77°, low 61°.
Pressure30.12 inHg
Wind9.4 mph S
Humidity31%
Visibility—
Dew point42°
Sat, 3169° / 62°0.17
69 °
Thebes, Saturday, 31 October
Rain. High 69°, low 62°.
Pressure30.00 inHg
Wind14.2 mph SW
Humidity76%
Visibility—
Dew point60°
Sun, 0167° / 64°1.13
67 °
Thebes, Sunday, 1 November
Rain. High 67°, low 64°.
Pressure29.97 inHg
Wind10.3 mph S
Humidity94%
Visibility—
Dew point65°
Mon, 0269° / 63°0.28
69 °
Thebes, Monday, 2 November
Rain. High 69°, low 63°.
Pressure30.00 inHg
Wind7.9 mph N
Humidity79%
Visibility—
Dew point62°
Tue, 0363° / 56°0
63 °
Thebes, Tuesday, 3 November
Overcast. High 63°, low 56°.
Pressure30.18 inHg
Wind14.7 mph N
Humidity58%
Visibility—
Dew point47°
Wed, 0461° / 47°0
61 °
Thebes, Wednesday, 4 November
Overcast. High 61°, low 47°.
Pressure30.15 inHg
Wind11.5 mph N
Humidity57%
Visibility—
Dew point40°
Thu, 0562° / 41°0
62 °
Thebes, Thursday, 5 November
Clear. High 62°, low 41°.
Pressure30.21 inHg
Wind8.2 mph NW
Humidity35%
Visibility—
Dew point29°
Fri, 0673° / 46°0
73 °
Thebes, Friday, 6 November
Clear. High 73°, low 46°.
Pressure30.00 inHg
Wind10.1 mph W
Humidity34%
Visibility—
Dew point36°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 0760° / 45°0.1
60 °
Thebes, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high60°
Average low45°
Average precipitation0.1 in
Chance of precipitation23%
Record high78° (1999)
Record low25° (1993)
Sun, 0860° / 45°0.03
60 °
Thebes, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high60°
Average low45°
Average precipitation0.03 in
Chance of precipitation12%
Record high78° (2005)
Record low24° (1991)
Mon, 0960° / 45°0.09
60 °
Thebes, Monday, 9 November
Climate normal for this date — 60-year average.
Average high60°
Average low45°
Average precipitation0.09 in
Chance of precipitation20%
Record high76° (2022)
Record low21° (1991)
Tue, 1059° / 44°0.12
59 °
Thebes, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high59°
Average low44°
Average precipitation0.12 in
Chance of precipitation28%
Record high76° (2020)
Record low22° (2018)
Wed, 1157° / 42°0.11
57 °
Thebes, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.11 in
Chance of precipitation30%
Record high74° (2010)
Record low25° (2025)
Thu, 1256° / 40°0.09
56 °
Thebes, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high56°
Average low40°
Average precipitation0.09 in
Chance of precipitation23%
Record high74° (1964)
Record low14° (2019)
Fri, 1355° / 39°0.09
55 °
Thebes, Friday, 13 November
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.09 in
Chance of precipitation22%
Record high74° (1999)
Record low16° (2019)
Sat, 1456° / 41°0.11
56 °
Thebes, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.11 in
Chance of precipitation30%
Record high76° (1971)
Record low19° (1986)
Sun, 1556° / 41°0.18
56 °
Thebes, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.18 in
Chance of precipitation35%
Record high76° (2025)
Record low25° (1969)
Mon, 1656° / 40°0.15
56 °
Thebes, Monday, 16 November
Climate normal for this date — 60-year average.
Average high56°
Average low40°
Average precipitation0.15 in
Chance of precipitation28%
Record high75° (1965)
Record low27° (1970)
Tue, 1757° / 41°0.13
57 °
Thebes, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high57°
Average low41°
Average precipitation0.13 in
Chance of precipitation25%
Record high76° (2016)
Record low22° (1997)
Wed, 1856° / 42°0.18
56 °
Thebes, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high56°
Average low42°
Average precipitation0.18 in
Chance of precipitation32%
Record high73° (2025)
Record low15° (2014)
Thu, 1956° / 42°0.14
56 °
Thebes, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high56°
Average low42°
Average precipitation0.14 in
Chance of precipitation37%
Record high73° (1985)
Record low20° (2022)
Fri, 2055° / 41°0.13
55 °
Thebes, Friday, 20 November
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.13 in
Chance of precipitation27%
Record high71° (1979)
Record low23° (2022)
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 Thebes, 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 Thebes, 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.