Monthly outlook for Klondike, IL: average high 64.6°, average low 50.9°. That is 2.3° above the climate normal for October. Precipitation is expected on 6 days (about 0.9 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 15 October (77.4°), the coolest 21 October (39.3°).
64.6°/50.9°
Average high / low
+2.3°
Above normal
6 / 5
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
6 October – 15 October
69.5°
61.9°
+4.2°
16 October – 25 October
56.3°
57.4°
-0.6°
26 October – 4 November
at normal
53.5°
—
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 (5 mi).
Wed, 0776° / 55°0
76 °
Klondike, Wednesday, 7 October
Overcast. High 76°, low 55°.
Pressure29.85 inHg
Wind7 mph W
Humidity66%
Visibility6.2 mi
Dew point58°
Thu, 0864° / 50°0
64 °
Klondike, Thursday, 8 October
Overcast. High 64°, low 50°.
Pressure30.12 inHg
Wind8.1 mph NW
Humidity51%
Visibility6.2 mi
Dew point44°
Fri, 0967° / 48°0
67 °
Klondike, Friday, 9 October
Light rain. High 67°, low 48°.
Pressure30.15 inHg
Wind10.7 mph S
Humidity51%
Visibility6.2 mi
Dew point47°
Sat, 1077° / 61°0
77 °
Klondike, Saturday, 10 October
Clear. High 77°, low 61°.
Pressure30.00 inHg
Wind11 mph SW
Humidity57%
Visibility6.2 mi
Dew point58°
Sun, 1166° / 57°0.05
66 °
Klondike, Sunday, 11 October
Light rain. High 66°, low 57°.
Pressure29.88 inHg
Wind8 mph NE
Humidity87%
Visibility—
Dew point59°
Mon, 1267° / 54°0.01
67 °
Klondike, Monday, 12 October
Light rain. High 67°, low 54°.
Pressure30.03 inHg
Wind10.7 mph NE
Humidity75%
Visibility—
Dew point54°
Tue, 1353° / 50°0.15
53 °
Klondike, Tuesday, 13 October
Light rain. High 53°, low 50°.
Pressure30.15 inHg
Wind9.8 mph NE
Humidity91%
Visibility—
Dew point49°
Wed, 1475° / 54°0
75 °
Klondike, Wednesday, 14 October
Overcast. High 75°, low 54°.
Pressure29.97 inHg
Wind16.6 mph S
Humidity63%
Visibility—
Dew point57°
Thu, 1577° / 65°0.13
77 °
Klondike, Thursday, 15 October
Light rain. High 77°, low 65°.
Pressure29.80 inHg
Wind22.1 mph S
Humidity61%
Visibility—
Dew point61°
Fri, 1658° / 46°0.03
58 °
Klondike, Friday, 16 October
Light rain. High 58°, low 46°.
Pressure30.27 inHg
Wind16.4 mph NW
Humidity67%
Visibility—
Dew point39°
Sat, 1751° / 48°0.15
51 °
Klondike, Saturday, 17 October
Light rain. High 51°, low 48°.
Pressure30.33 inHg
Wind15.1 mph E
Humidity81%
Visibility—
Dew point44°
Sun, 1857° / 52°0.27
57 °
Klondike, Sunday, 18 October
Light rain. High 57°, low 52°.
Pressure30.18 inHg
Wind12.6 mph E
Humidity93%
Visibility—
Dew point53°
Mon, 1958° / 45°0.07
58 °
Klondike, Monday, 19 October
Light rain. High 58°, low 45°.
Pressure30.21 inHg
Wind10 mph W
Humidity53%
Visibility—
Dew point39°
Tue, 2060° / 40°0
60 °
Klondike, Tuesday, 20 October
Light rain. High 60°, low 40°.
Pressure30.03 inHg
Wind11.4 mph SW
Humidity42%
Visibility—
Dew point34°
Wed, 2153° / 39°0
53 °
Klondike, Wednesday, 21 October
Overcast. High 53°, low 39°.
Pressure30.06 inHg
Wind10.5 mph SW
Humidity58%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2258° / 44°0.14
58 °
Klondike, Thursday, 22 October
Climate normal for this date — 60-year average.
Average high58°
Average low44°
Average precipitation0.14 in
Chance of precipitation28%
Record high76° (1963)
Record low30° (1976)
Fri, 2357° / 45°0.13
57 °
Klondike, Friday, 23 October
Climate normal for this date — 60-year average.
Average high57°
Average low45°
Average precipitation0.13 in
Chance of precipitation42%
Record high76° (1963)
Record low30° (1969)
Sat, 2456° / 45°0.1
56 °
Klondike, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high56°
Average low45°
Average precipitation0.1 in
Chance of precipitation38%
Record high76° (2023)
Record low27° (1981)
Sun, 2556° / 44°0.1
56 °
Klondike, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high56°
Average low44°
Average precipitation0.1 in
Chance of precipitation33%
Record high72° (2012)
Record low30° (1962)
Mon, 2655° / 44°0.13
55 °
Klondike, Monday, 26 October
Climate normal for this date — 60-year average.
Average high55°
Average low44°
Average precipitation0.13 in
Chance of precipitation28%
Record high76° (1963)
Record low26° (1962)
Tue, 2755° / 43°0.08
55 °
Klondike, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high55°
Average low43°
Average precipitation0.08 in
Chance of precipitation33%
Record high73° (2014)
Record low30° (1980)
Wed, 2854° / 43°0.05
54 °
Klondike, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high54°
Average low43°
Average precipitation0.05 in
Chance of precipitation22%
Record high68° (1999)
Record low30° (1976)
Thu, 2954° / 42°0.06
54 °
Klondike, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high54°
Average low42°
Average precipitation0.06 in
Chance of precipitation20%
Record high78° (2024)
Record low28° (1988)
Fri, 3056° / 43°0.09
56 °
Klondike, Friday, 30 October
Climate normal for this date — 60-year average.
Average high56°
Average low43°
Average precipitation0.09 in
Chance of precipitation30%
Record high76° (2024)
Record low26° (1988)
Sat, 3154° / 43°0.12
54 °
Klondike, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high54°
Average low43°
Average precipitation0.12 in
Chance of precipitation42%
Record high71° (1974)
Record low28° (2019)
Sun, 0153° / 42°0.16
53 °
Klondike, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high53°
Average low42°
Average precipitation0.16 in
Chance of precipitation45%
Record high71° (2016)
Record low20° (2019)
Mon, 0252° / 41°0.14
52 °
Klondike, Monday, 2 November
Climate normal for this date — 60-year average.
Average high52°
Average low41°
Average precipitation0.14 in
Chance of precipitation37%
Record high72° (1961)
Record low23° (1991)
Tue, 0351° / 40°0.06
51 °
Klondike, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.06 in
Chance of precipitation30%
Record high70° (1987)
Record low17° (1991)
Wed, 0451° / 41°0.1
51 °
Klondike, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high51°
Average low41°
Average precipitation0.1 in
Chance of precipitation32%
Record high69° (2022)
Record low15° (1991)
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 Klondike, 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 Klondike, 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.