Monthly outlook for Riverwoods, IL: average high 63.6°, average low 50.1°. That is 4.7° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 24 October (70.4°), the coolest 26 October (41.1°).
63.6°/50.1°
Average high / low
+4.7°
Above normal
1 / 5
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
18 October – 27 October
63.3°
56.2°
+4°
28 October – 6 November
64.1°
52.4°
+6.5°
7 November – 16 November
at normal
47.2°
—
October records over 66 years
87.4°3 October 2025All-time high
27.5°31 October 2019All-time low
Climate normals and records are computed from the nearest reference point — Highwood (5 mi).
Mon, 1963° / 44°0
63 °
Riverwoods, Monday, 19 October
Clear. High 63°, low 44°.
Pressure30.39 inHg
Wind3.1 mph SW
Humidity58%
Visibility6.2 mi
Dew point46°
Tue, 2063° / 44°0
63 °
Riverwoods, Tuesday, 20 October
Partly cloudy. High 63°, low 44°.
Pressure30.42 inHg
Wind4.2 mph SE
Humidity69%
Visibility6.2 mi
Dew point52°
Wed, 2165° / 45°0
65 °
Riverwoods, Wednesday, 21 October
Clear. High 65°, low 45°.
Pressure30.27 inHg
Wind3.8 mph SW
Humidity58%
Visibility6.2 mi
Dew point47°
Thu, 2266° / 48°0
66 °
Riverwoods, Thursday, 22 October
Clear. High 66°, low 48°.
Pressure30.27 inHg
Wind6.3 mph NE
Humidity60%
Visibility—
Dew point49°
Fri, 2366° / 55°0
66 °
Riverwoods, Friday, 23 October
Mostly clear. High 66°, low 55°.
Pressure30.36 inHg
Wind8.2 mph SE
Humidity58%
Visibility—
Dew point47°
Sat, 2470° / 59°0
70 °
Riverwoods, Saturday, 24 October
Overcast. High 70°, low 59°.
Pressure30.21 inHg
Wind12.4 mph S
Humidity32%
Visibility—
Dew point36°
Sun, 2564° / 47°0
64 °
Riverwoods, Sunday, 25 October
Overcast. High 64°, low 47°.
Pressure30.39 inHg
Wind12.9 mph SW
Humidity54%
Visibility—
Dew point34°
Mon, 2656° / 41°0
56 °
Riverwoods, Monday, 26 October
Clear. High 56°, low 41°.
Pressure30.39 inHg
Wind7.5 mph W
Humidity31%
Visibility—
Dew point23°
Tue, 2758° / 43°0
58 °
Riverwoods, Tuesday, 27 October
Overcast. High 58°, low 43°.
Pressure30.30 inHg
Wind6.6 mph SW
Humidity27%
Visibility—
Dew point21°
Wed, 2861° / 54°0
61 °
Riverwoods, Wednesday, 28 October
Overcast. High 61°, low 54°.
Pressure30.09 inHg
Wind13.5 mph S
Humidity60%
Visibility—
Dew point45°
Thu, 2964° / 61°0.02
64 °
Riverwoods, Thursday, 29 October
Light rain. High 64°, low 61°.
Pressure29.80 inHg
Wind19.8 mph SW
Humidity56%
Visibility—
Dew point47°
Fri, 3066° / 56°0
66 °
Riverwoods, Friday, 30 October
Mostly clear. High 66°, low 56°.
Pressure29.91 inHg
Wind9.5 mph W
Humidity20%
Visibility—
Dew point22°
Sat, 3163° / 54°0.08
63 °
Riverwoods, Saturday, 31 October
Light rain. High 63°, low 54°.
Pressure30.09 inHg
Wind13 mph SE
Humidity42%
Visibility—
Dew point38°
Sun, 0165° / 55°0.02
65 °
Riverwoods, Sunday, 1 November
Light rain. High 65°, low 55°.
Pressure29.77 inHg
Wind16.5 mph W
Humidity41%
Visibility—
Dew point40°
Mon, 0265° / 51°0
65 °
Riverwoods, Monday, 2 November
Clear. High 65°, low 51°.
Pressure30.09 inHg
Wind9.6 mph S
Humidity28%
Visibility—
Dew point30°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0351° / 42°0.06
51 °
Riverwoods, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high51°
Average low42°
Average precipitation0.06 in
Chance of precipitation23%
Record high70° (2022)
Record low20° (1991)
Wed, 0451° / 43°0.09
51 °
Riverwoods, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high51°
Average low43°
Average precipitation0.09 in
Chance of precipitation28%
Record high69° (2022)
Record low18° (1991)
Thu, 0551° / 42°0.12
51 °
Riverwoods, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high51°
Average low42°
Average precipitation0.12 in
Chance of precipitation28%
Record high68° (2022)
Record low22° (1991)
Fri, 0651° / 40°0.09
51 °
Riverwoods, Friday, 6 November
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.09 in
Chance of precipitation28%
Record high70° (2020)
Record low25° (1991)
Sat, 0750° / 41°0.05
50 °
Riverwoods, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high50°
Average low41°
Average precipitation0.05 in
Chance of precipitation18%
Record high68° (2020)
Record low21° (1991)
Sun, 0849° / 41°0.06
49 °
Riverwoods, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high49°
Average low41°
Average precipitation0.06 in
Chance of precipitation17%
Record high72° (2020)
Record low18° (2019)
Mon, 0950° / 40°0.12
50 °
Riverwoods, Monday, 9 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.12 in
Chance of precipitation38%
Record high72° (2020)
Record low23° (2018)
Tue, 1049° / 40°0.11
49 °
Riverwoods, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high49°
Average low40°
Average precipitation0.11 in
Chance of precipitation37%
Record high72° (2022)
Record low18° (2017)
Wed, 1147° / 38°0.08
47 °
Riverwoods, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high47°
Average low38°
Average precipitation0.08 in
Chance of precipitation33%
Record high64° (1964)
Record low16° (2019)
Thu, 1245° / 36°0.06
45 °
Riverwoods, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high45°
Average low36°
Average precipitation0.06 in
Chance of precipitation20%
Record high63° (1964)
Record low7° (2019)
Fri, 1345° / 36°0.05
45 °
Riverwoods, Friday, 13 November
Climate normal for this date — 60-year average.
Average high45°
Average low36°
Average precipitation0.05 in
Chance of precipitation23%
Record high63° (1999)
Record low8° (2019)
Sat, 1446° / 37°0.07
46 °
Riverwoods, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high46°
Average low37°
Average precipitation0.07 in
Chance of precipitation30%
Record high64° (2025)
Record low18° (1986)
Sun, 1546° / 37°0.09
46 °
Riverwoods, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high46°
Average low37°
Average precipitation0.09 in
Chance of precipitation28%
Record high69° (2025)
Record low20° (2019)
Mon, 1646° / 37°0.05
46 °
Riverwoods, Monday, 16 November
Climate normal for this date — 60-year average.
Average high46°
Average low37°
Average precipitation0.05 in
Chance of precipitation18%
Record high62° (2023)
Record low24° (1997)
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 Riverwoods, 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 Riverwoods, 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.