Monthly outlook for Riddle Hill, IL: average high 65.9°, average low 48.4°. That is 4° above the climate normal for October. Precipitation is expected on 3 days (about 1.0 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 29 October (77°), the coolest 3 November (36.2°).
65.9°/48.4°
Average high / low
+4°
Above normal
3 / 5
Wet days / normal
1.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
23 October – 1 November
70.7°
60.3°
+5.8°
2 November – 11 November
57.9°
55.4°
+1.4°
12 November – 21 November
at normal
50.9°
—
October records over 66 years
89.4°7 October 2007All-time high
24.8°26 October 1962All-time low
Climate normals and records are computed from the nearest reference point — Springfield (6 mi).
Sat, 2473° / 49°0
73 °
Riddle Hill, Saturday, 24 October
Partly cloudy. High 73°, low 49°.
Pressure30.36 inHg
Wind7 mph S
Humidity46%
Visibility6.2 mi
Dew point48°
Sun, 2576° / 52°0
76 °
Riddle Hill, Sunday, 25 October
Partly cloudy. High 76°, low 52°.
Pressure30.36 inHg
Wind5 mph S
Humidity44%
Visibility6.2 mi
Dew point50°
Mon, 2675° / 53°0
75 °
Riddle Hill, Monday, 26 October
Overcast. High 75°, low 53°.
Pressure30.33 inHg
Wind2.9 mph SE
Humidity51%
Visibility6.2 mi
Dew point52°
Tue, 2772° / 52°0
72 °
Riddle Hill, Tuesday, 27 October
Overcast. High 72°, low 52°.
Pressure30.21 inHg
Wind7.3 mph S
Humidity44%
Visibility—
Dew point46°
Wed, 2874° / 56°0
74 °
Riddle Hill, Wednesday, 28 October
Clear. High 74°, low 56°.
Pressure30.03 inHg
Wind13.8 mph SW
Humidity39%
Visibility—
Dew point45°
Thu, 2977° / 59°0
77 °
Riddle Hill, Thursday, 29 October
Overcast. High 77°, low 59°.
Pressure30.12 inHg
Wind15.1 mph S
Humidity28%
Visibility—
Dew point38°
Fri, 3066° / 58°0.49
66 °
Riddle Hill, Friday, 30 October
Rain. High 66°, low 58°.
Pressure30.06 inHg
Wind17 mph S
Humidity82%
Visibility—
Dew point54°
Sat, 3162° / 55°0.46
62 °
Riddle Hill, Saturday, 31 October
Rain. High 62°, low 55°.
Pressure29.91 inHg
Wind13.6 mph S
Humidity96%
Visibility—
Dew point59°
Sun, 0155° / 45°0.09
55 °
Riddle Hill, Sunday, 1 November
Light rain. High 55°, low 45°.
Pressure30.03 inHg
Wind14.9 mph W
Humidity66%
Visibility—
Dew point42°
Mon, 0251° / 42°0
51 °
Riddle Hill, Monday, 2 November
Overcast. High 51°, low 42°.
Pressure30.21 inHg
Wind16 mph NW
Humidity57%
Visibility—
Dew point31°
Tue, 0356° / 36°0
56 °
Riddle Hill, Tuesday, 3 November
Clear. High 56°, low 36°.
Pressure30.30 inHg
Wind9.4 mph NW
Humidity42%
Visibility—
Dew point29°
Wed, 0459° / 39°0
59 °
Riddle Hill, Wednesday, 4 November
Clear. High 59°, low 39°.
Pressure30.27 inHg
Wind9.2 mph NW
Humidity36%
Visibility—
Dew point28°
Thu, 0561° / 42°0
61 °
Riddle Hill, Thursday, 5 November
Clear. High 61°, low 42°.
Pressure30.27 inHg
Wind8.6 mph SW
Humidity36%
Visibility—
Dew point30°
Fri, 0661° / 43°0
61 °
Riddle Hill, Friday, 6 November
Overcast. High 61°, low 43°.
Pressure30.15 inHg
Wind9.9 mph S
Humidity37%
Visibility—
Dew point31°
Sat, 0760° / 44°0
60 °
Riddle Hill, Saturday, 7 November
Overcast. High 60°, low 44°.
Pressure30.09 inHg
Wind4.4 mph NE
Humidity35%
Visibility—
Dew point30°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0855° / 40°0.04
55 °
Riddle Hill, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.04 in
Chance of precipitation17%
Record high76° (2023)
Record low11° (1991)
Mon, 0956° / 41°0.11
56 °
Riddle Hill, Monday, 9 November
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.11 in
Chance of precipitation33%
Record high73° (2020)
Record low15° (1991)
Tue, 1054° / 39°0.15
54 °
Riddle Hill, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.15 in
Chance of precipitation30%
Record high73° (2020)
Record low19° (2018)
Wed, 1152° / 36°0.09
52 °
Riddle Hill, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high52°
Average low36°
Average precipitation0.09 in
Chance of precipitation32%
Record high74° (1964)
Record low19° (2019)
Thu, 1250° / 35°0.06
50 °
Riddle Hill, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.06 in
Chance of precipitation18%
Record high72° (2010)
Record low10° (2019)
Fri, 1351° / 36°0.06
51 °
Riddle Hill, Friday, 13 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.06 in
Chance of precipitation17%
Record high73° (1999)
Record low9° (1986)
Sat, 1452° / 37°0.07
52 °
Riddle Hill, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.07 in
Chance of precipitation28%
Record high74° (1971)
Record low13° (1986)
Sun, 1551° / 37°0.1
51 °
Riddle Hill, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.1 in
Chance of precipitation28%
Record high73° (1971)
Record low19° (2019)
Mon, 1651° / 36°0.08
51 °
Riddle Hill, Monday, 16 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.08 in
Chance of precipitation22%
Record high71° (1971)
Record low22° (1997)
Tue, 1752° / 37°0.12
52 °
Riddle Hill, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.12 in
Chance of precipitation27%
Record high74° (2016)
Record low19° (2005)
Wed, 1852° / 38°0.18
52 °
Riddle Hill, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.18 in
Chance of precipitation30%
Record high69° (1999)
Record low14° (2014)
Thu, 1951° / 37°0.08
51 °
Riddle Hill, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.08 in
Chance of precipitation22%
Record high71° (1979)
Record low20° (2014)
Fri, 2051° / 36°0.11
51 °
Riddle Hill, Friday, 20 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.11 in
Chance of precipitation30%
Record high70° (2007)
Record low18° (2022)
Sat, 2149° / 35°0.1
49 °
Riddle Hill, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.1 in
Chance of precipitation28%
Record high69° (1990)
Record low12° (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 Riddle 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 Riddle 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.