Monthly outlook for Trout Valley, IL: average high 57.1°, average low 45.1°. That is 2.2° above the climate normal for October. Precipitation is expected on 4 days (about 0.6 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 29 October (67.2°), the coolest 9 November (31°).
57.1°/45.1°
Average high / low
+2.2°
Above normal
4 / 4
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
26 October – 4 November
61.3°
54.5°
+3.8°
5 November – 14 November
50.1°
49°
+0.6°
15 November – 24 November
at normal
45.1°
—
October records over 66 years
86.9°3 October 2025All-time high
23.4°26 October 1962All-time low
Climate normals and records are computed from the nearest reference point — Elgin (12 mi).
Tue, 2767° / 51°0
67 °
Trout Valley, Tuesday, 27 October
Overcast. High 67°, low 51°.
Pressure30.27 inHg
Wind7.6 mph SE
Humidity76%
Visibility6.2 mi
Dew point53°
Wed, 2864° / 52°0.01
64 °
Trout Valley, Wednesday, 28 October
Light rain. High 64°, low 52°.
Pressure30.18 inHg
Wind6 mph S
Humidity73%
Visibility6.2 mi
Dew point53°
Thu, 2967° / 55°0.06
67 °
Trout Valley, Thursday, 29 October
Light rain. High 67°, low 55°.
Pressure30.06 inHg
Wind9.5 mph SW
Humidity71%
Visibility6.2 mi
Dew point56°
Fri, 3064° / 45°0
64 °
Trout Valley, Friday, 30 October
Overcast. High 64°, low 45°.
Pressure30.18 inHg
Wind6.8 mph SE
Humidity53%
Visibility—
Dew point44°
Sat, 3163° / 50°0.31
63 °
Trout Valley, Saturday, 31 October
Rain. High 63°, low 50°.
Pressure30.18 inHg
Wind8.7 mph S
Humidity66%
Visibility—
Dew point51°
Sun, 0163° / 50°0
63 °
Trout Valley, Sunday, 1 November
Overcast. High 63°, low 50°.
Pressure30.09 inHg
Wind8 mph E
Humidity45%
Visibility—
Dew point40°
Mon, 0255° / 51°0.02
55 °
Trout Valley, Monday, 2 November
Light rain. High 55°, low 51°.
Pressure29.91 inHg
Wind10.1 mph NE
Humidity64%
Visibility—
Dew point42°
Tue, 0356° / 50°0
56 °
Trout Valley, Tuesday, 3 November
Overcast. High 56°, low 50°.
Pressure30.06 inHg
Wind6.8 mph N
Humidity79%
Visibility—
Dew point48°
Wed, 0447° / 41°0.01
47 °
Trout Valley, Wednesday, 4 November
Light rain. High 47°, low 41°.
Pressure30.33 inHg
Wind16.5 mph NE
Humidity78%
Visibility—
Dew point38°
Thu, 0547° / 35°0
47 °
Trout Valley, Thursday, 5 November
Partly cloudy. High 47°, low 35°.
Pressure30.50 inHg
Wind9.1 mph E
Humidity41%
Visibility—
Dew point23°
Fri, 0650° / 32°0
50 °
Trout Valley, Friday, 6 November
Mostly clear. High 50°, low 32°.
Pressure30.21 inHg
Wind15.7 mph S
Humidity45%
Visibility—
Dew point26°
Sat, 0752° / 45°0.11
52 °
Trout Valley, Saturday, 7 November
Light rain. High 52°, low 45°.
Pressure29.83 inHg
Wind18.5 mph S
Humidity84%
Visibility—
Dew point42°
Sun, 0854° / 37°0.07
54 °
Trout Valley, Sunday, 8 November
Light rain. High 54°, low 37°.
Pressure30.06 inHg
Wind18.9 mph NW
Humidity65%
Visibility—
Dew point35°
Mon, 0948° / 31°0
48 °
Trout Valley, Monday, 9 November
Mostly clear. High 48°, low 31°.
Pressure30.33 inHg
Wind10.6 mph S
Humidity57%
Visibility—
Dew point30°
Tue, 1051° / 46°0.02
51 °
Trout Valley, Tuesday, 10 November
Light rain. High 51°, low 46°.
Pressure29.91 inHg
Wind11.6 mph SW
Humidity78%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 1147° / 34°0.06
47 °
Trout Valley, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.06 in
Chance of precipitation27%
Record high70° (1964)
Record low15° (2019)
Thu, 1246° / 33°0.06
46 °
Trout Valley, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.06 in
Chance of precipitation23%
Record high65° (1964)
Record low2° (2019)
Fri, 1346° / 33°0.04
46 °
Trout Valley, Friday, 13 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.04 in
Chance of precipitation20%
Record high69° (1999)
Record low2° (2019)
Sat, 1447° / 33°0.07
47 °
Trout Valley, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.07 in
Chance of precipitation35%
Record high69° (1971)
Record low13° (1986)
Sun, 1546° / 34°0.08
46 °
Trout Valley, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.08 in
Chance of precipitation27%
Record high69° (2025)
Record low15° (2019)
Mon, 1646° / 33°0.05
46 °
Trout Valley, Monday, 16 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.05 in
Chance of precipitation17%
Record high63° (1988)
Record low19° (1997)
Tue, 1747° / 34°0.08
47 °
Trout Valley, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.08 in
Chance of precipitation28%
Record high70° (2016)
Record low15° (2014)
Wed, 1847° / 34°0.1
47 °
Trout Valley, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.1 in
Chance of precipitation30%
Record high67° (1999)
Record low11° (2014)
Thu, 1946° / 34°0.07
46 °
Trout Valley, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.07 in
Chance of precipitation30%
Record high64° (1983)
Record low10° (2018)
Fri, 2045° / 33°0.08
45 °
Trout Valley, Friday, 20 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.08 in
Chance of precipitation32%
Record high63° (2003)
Record low13° (2022)
Sat, 2144° / 31°0.1
44 °
Trout Valley, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.1 in
Chance of precipitation23%
Record high66° (1990)
Record low9° (1964)
Sun, 2244° / 30°0.03
44 °
Trout Valley, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high44°
Average low30°
Average precipitation0.03 in
Chance of precipitation20%
Record high67° (2010)
Record low4° (2015)
Mon, 2344° / 31°0.07
44 °
Trout Valley, Monday, 23 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.07 in
Chance of precipitation27%
Record high64° (2003)
Record low11° (1970)
Tue, 2442° / 30°0.08
42 °
Trout Valley, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high42°
Average low30°
Average precipitation0.08 in
Chance of precipitation28%
Record high65° (1966)
Record low13° (2013)
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 Trout Valley, 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 Trout Valley, 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.