Monthly outlook for Scales Mound, IL: average high 56.5°, average low 40.3°. That is 1.2° above the climate normal for October. Precipitation is expected on 4 days (about 1.0 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 21 October (71.3°), the coolest 30 October (26.8°).
56.5°/40.3°
Average high / low
+1.2°
Above normal
4 / 5
Wet days / normal
1.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
20 October – 29 October
59.5°
55.7°
+2.1°
30 October – 8 November
51.6°
51°
+0.3°
9 November – 18 November
at normal
45.4°
—
October records over 66 years
85.6°3 October 2025All-time high
20.7°30 October 1988All-time low
Climate normals and records are computed from the nearest reference point — Benton (9 mi).
Wed, 2171° / 43°0
71 °
Scales Mound, Wednesday, 21 October
Clear. High 71°, low 43°.
Pressure30.24 inHg
Wind5.5 mph SW
Humidity64%
Visibility6.2 mi
Dew point51°
Thu, 2269° / 45°0
69 °
Scales Mound, Thursday, 22 October
Clear. High 69°, low 45°.
Pressure30.27 inHg
Wind3.1 mph SE
Humidity65%
Visibility6.2 mi
Dew point56°
Fri, 2368° / 53°0
68 °
Scales Mound, Friday, 23 October
Overcast. High 68°, low 53°.
Pressure30.33 inHg
Wind8.9 mph SE
Humidity67%
Visibility6.2 mi
Dew point54°
Sat, 2467° / 51°0
67 °
Scales Mound, Saturday, 24 October
Overcast. High 67°, low 51°.
Pressure30.30 inHg
Wind11.1 mph S
Humidity64%
Visibility6.2 mi
Dew point51°
Sun, 2570° / 55°0
70 °
Scales Mound, Sunday, 25 October
Overcast. High 70°, low 55°.
Pressure30.33 inHg
Wind8 mph S
Humidity62%
Visibility—
Dew point53°
Mon, 2656° / 41°0.23
56 °
Scales Mound, Monday, 26 October
Light rain. High 56°, low 41°.
Pressure30.21 inHg
Wind16 mph NE
Humidity87%
Visibility—
Dew point49°
Tue, 2743° / 37°0.19
43 °
Scales Mound, Tuesday, 27 October
Light rain. High 43°, low 37°.
Pressure30.36 inHg
Wind14.2 mph NE
Humidity78%
Visibility—
Dew point36°
Wed, 2841° / 34°0.47
41 °
Scales Mound, Wednesday, 28 October
Snow. High 41°, low 34°.
Pressure30.21 inHg
Wind15.8 mph NW
Humidity97%
Visibility—
Dew point35°
Thu, 2942° / 30°0
42 °
Scales Mound, Thursday, 29 October
Mostly clear. High 42°, low 30°.
Pressure30.30 inHg
Wind13.2 mph NW
Humidity62%
Visibility—
Dew point28°
Fri, 3045° / 27°0
45 °
Scales Mound, Friday, 30 October
Partly cloudy. High 45°, low 27°.
Pressure30.24 inHg
Wind12.2 mph S
Humidity45%
Visibility—
Dew point21°
Sat, 3151° / 39°0.06
51 °
Scales Mound, Saturday, 31 October
Light rain. High 51°, low 39°.
Pressure29.88 inHg
Wind16.6 mph S
Humidity51%
Visibility—
Dew point32°
Sun, 0160° / 45°0.03
60 °
Scales Mound, Sunday, 1 November
Light rain. High 60°, low 45°.
Pressure29.71 inHg
Wind16.8 mph S
Humidity77%
Visibility—
Dew point46°
Mon, 0255° / 36°0.03
55 °
Scales Mound, Monday, 2 November
Light rain. High 55°, low 36°.
Pressure30.21 inHg
Wind17.7 mph NW
Humidity45%
Visibility—
Dew point28°
Tue, 0349° / 33°0
49 °
Scales Mound, Tuesday, 3 November
Clear. High 49°, low 33°.
Pressure30.47 inHg
Wind9.5 mph S
Humidity40%
Visibility—
Dew point24°
Wed, 0449° / 36°0
49 °
Scales Mound, Wednesday, 4 November
Overcast. High 49°, low 36°.
Pressure30.33 inHg
Wind11.7 mph N
Humidity53%
Visibility—
Dew point31°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 0550° / 37°0.12
50 °
Scales Mound, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.12 in
Chance of precipitation23%
Record high67° (1978)
Record low19° (1991)
Fri, 0650° / 36°0.07
50 °
Scales Mound, Friday, 6 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.07 in
Chance of precipitation25%
Record high68° (2020)
Record low16° (1991)
Sat, 0749° / 35°0.03
49 °
Scales Mound, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.03 in
Chance of precipitation22%
Record high67° (2020)
Record low5° (1991)
Sun, 0849° / 35°0.05
49 °
Scales Mound, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.05 in
Chance of precipitation18%
Record high70° (1999)
Record low6° (1991)
Mon, 0948° / 36°0.1
48 °
Scales Mound, Monday, 9 November
Climate normal for this date — 60-year average.
Average high48°
Average low36°
Average precipitation0.1 in
Chance of precipitation35%
Record high70° (2020)
Record low16° (1991)
Tue, 1047° / 34°0.12
47 °
Scales Mound, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.12 in
Chance of precipitation30%
Record high70° (2022)
Record low14° (2017)
Wed, 1145° / 31°0.08
45 °
Scales Mound, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high45°
Average low31°
Average precipitation0.08 in
Chance of precipitation28%
Record high69° (1964)
Record low13° (2019)
Thu, 1243° / 31°0.06
43 °
Scales Mound, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high43°
Average low31°
Average precipitation0.06 in
Chance of precipitation30%
Record high64° (1964)
Record low3° (2019)
Fri, 1344° / 31°0.05
44 °
Scales Mound, Friday, 13 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.05 in
Chance of precipitation22%
Record high69° (1999)
Record low6° (1986)
Sat, 1445° / 32°0.04
45 °
Scales Mound, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.04 in
Chance of precipitation28%
Record high65° (2001)
Record low14° (1986)
Sun, 1545° / 33°0.05
45 °
Scales Mound, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.05 in
Chance of precipitation25%
Record high66° (2001)
Record low15° (2019)
Mon, 1645° / 32°0.06
45 °
Scales Mound, Monday, 16 November
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.06 in
Chance of precipitation23%
Record high61° (1988)
Record low19° (1989)
Tue, 1745° / 33°0.1
45 °
Scales Mound, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.1 in
Chance of precipitation18%
Record high69° (2016)
Record low13° (2005)
Wed, 1845° / 32°0.09
45 °
Scales Mound, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.09 in
Chance of precipitation32%
Record high66° (1999)
Record low10° (2014)
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 Scales Mound, 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 Scales Mound, 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.