Monthly outlook for Silver Lake, IL: average high 59°, average low 41.9°. That is 2.3° above the climate normal for October. Precipitation is expected on 3 days (about 0.3 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 22 October (73.8°), the coolest 29 October (34.2°).
59°/41.9°
Average high / low
+2.3°
Above normal
3 / 5
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
20 October – 29 October
62.8°
56°
+3.8°
30 October – 8 November
52.7°
51.9°
+0.4°
9 November – 18 November
at normal
46.4°
—
October records over 66 years
86.9°3 October 2025All-time high
26.1°30 October 1988All-time low
Climate normals and records are computed from the nearest reference point — Round Lake Beach (13 mi).
Wed, 2172° / 42°0
72 °
Silver Lake, Wednesday, 21 October
Clear. High 72°, low 42°.
Pressure30.24 inHg
Wind4.8 mph SW
Humidity50%
Visibility6.2 mi
Dew point47°
Thu, 2274° / 44°0
74 °
Silver Lake, Thursday, 22 October
Clear. High 74°, low 44°.
Pressure30.27 inHg
Wind3.2 mph E
Humidity60%
Visibility6.2 mi
Dew point53°
Fri, 2367° / 54°0
67 °
Silver Lake, Friday, 23 October
Clear. High 67°, low 54°.
Pressure30.36 inHg
Wind4.1 mph SE
Humidity70%
Visibility6.2 mi
Dew point55°
Sat, 2466° / 50°0
66 °
Silver Lake, Saturday, 24 October
Overcast. High 66°, low 50°.
Pressure30.36 inHg
Wind8.2 mph S
Humidity65%
Visibility6.2 mi
Dew point51°
Sun, 2570° / 52°0
70 °
Silver Lake, Sunday, 25 October
Overcast. High 70°, low 52°.
Pressure30.36 inHg
Wind8 mph S
Humidity57%
Visibility—
Dew point50°
Mon, 2668° / 42°0.14
68 °
Silver Lake, Monday, 26 October
Light rain. High 68°, low 42°.
Pressure30.18 inHg
Wind14.1 mph N
Humidity59%
Visibility—
Dew point51°
Tue, 2746° / 37°0.08
46 °
Silver Lake, Tuesday, 27 October
Light rain. High 46°, low 37°.
Pressure30.39 inHg
Wind14.9 mph N
Humidity58%
Visibility—
Dew point31°
Wed, 2847° / 37°0
47 °
Silver Lake, Wednesday, 28 October
Overcast. High 47°, low 37°.
Pressure30.30 inHg
Wind7.5 mph N
Humidity51%
Visibility—
Dew point29°
Thu, 2950° / 34°0
50 °
Silver Lake, Thursday, 29 October
Clear. High 50°, low 34°.
Pressure30.21 inHg
Wind9.2 mph NW
Humidity47%
Visibility—
Dew point29°
Fri, 3052° / 34°0
52 °
Silver Lake, Friday, 30 October
Clear. High 52°, low 34°.
Pressure30.24 inHg
Wind6.9 mph SE
Humidity44%
Visibility—
Dew point28°
Sat, 3157° / 40°0
57 °
Silver Lake, Saturday, 31 October
Clear. High 57°, low 40°.
Pressure30.00 inHg
Wind16 mph S
Humidity45%
Visibility—
Dew point33°
Sun, 0153° / 45°0.05
53 °
Silver Lake, Sunday, 1 November
Light rain. High 53°, low 45°.
Pressure29.94 inHg
Wind12.6 mph SW
Humidity86%
Visibility—
Dew point45°
Mon, 0256° / 42°0
56 °
Silver Lake, Monday, 2 November
Clear. High 56°, low 42°.
Pressure30.12 inHg
Wind13.5 mph NW
Humidity37%
Visibility—
Dew point29°
Tue, 0347° / 34°0
47 °
Silver Lake, Tuesday, 3 November
Overcast. High 47°, low 34°.
Pressure30.33 inHg
Wind7.9 mph NW
Humidity45%
Visibility—
Dew point25°
Wed, 0451° / 42°0.01
51 °
Silver Lake, Wednesday, 4 November
Light rain. High 51°, low 42°.
Pressure30.18 inHg
Wind8.6 mph E
Humidity58%
Visibility—
Dew point36°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 0551° / 40°0.12
51 °
Silver Lake, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.12 in
Chance of precipitation28%
Record high71° (1978)
Record low20° (1991)
Fri, 0651° / 38°0.09
51 °
Silver Lake, Friday, 6 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.09 in
Chance of precipitation30%
Record high70° (2020)
Record low22° (1991)
Sat, 0750° / 38°0.05
50 °
Silver Lake, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high50°
Average low38°
Average precipitation0.05 in
Chance of precipitation18%
Record high68° (2020)
Record low14° (1991)
Sun, 0850° / 38°0.04
50 °
Silver Lake, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high50°
Average low38°
Average precipitation0.04 in
Chance of precipitation18%
Record high73° (2020)
Record low15° (1991)
Mon, 0950° / 38°0.11
50 °
Silver Lake, Monday, 9 November
Climate normal for this date — 60-year average.
Average high50°
Average low38°
Average precipitation0.11 in
Chance of precipitation33%
Record high73° (2020)
Record low20° (1991)
Tue, 1049° / 37°0.11
49 °
Silver Lake, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.11 in
Chance of precipitation38%
Record high72° (2022)
Record low16° (2017)
Wed, 1146° / 35°0.08
46 °
Silver Lake, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.08 in
Chance of precipitation35%
Record high67° (1964)
Record low15° (2019)
Thu, 1245° / 34°0.06
45 °
Silver Lake, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high45°
Average low34°
Average precipitation0.06 in
Chance of precipitation22%
Record high64° (1964)
Record low3° (2019)
Fri, 1345° / 33°0.05
45 °
Silver Lake, Friday, 13 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.05 in
Chance of precipitation25%
Record high67° (1999)
Record low2° (2019)
Sat, 1446° / 34°0.07
46 °
Silver Lake, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.07 in
Chance of precipitation28%
Record high66° (1971)
Record low15° (1986)
Sun, 1546° / 35°0.08
46 °
Silver Lake, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.08 in
Chance of precipitation28%
Record high68° (2025)
Record low17° (2019)
Mon, 1646° / 34°0.05
46 °
Silver Lake, Monday, 16 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.05 in
Chance of precipitation17%
Record high62° (1988)
Record low21° (1997)
Tue, 1746° / 35°0.1
46 °
Silver Lake, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.1 in
Chance of precipitation28%
Record high68° (2016)
Record low15° (2014)
Wed, 1846° / 35°0.1
46 °
Silver Lake, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.1 in
Chance of precipitation28%
Record high64° (1975)
Record low12° (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 Silver Lake, 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 Silver Lake, 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.