Monthly outlook for Apple River, IL: average high 59.6°, average low 47.4°. That is 1.2° above the climate normal for October. Precipitation is expected on 4 days (about 2.5 inches), against a normal of 5 days and 1.4 inches. The warmest day looks like 13 October (75.2°), the coolest 17 October (35.1°).
59.6°/47.4°
Average high / low
+1.2°
Above normal
4 / 5
Wet days / normal
2.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 October – 22 October
62.4°
58.8°
+2°
23 October – 1 November
55.1°
54.8°
+0.1°
2 November – 11 November
at normal
49.5°
—
October records over 66 years
86°3 October 2025All-time high
22.6°30 October 1988All-time low
Climate normals and records are computed from the nearest reference point — Gratiot (6 mi).
Wed, 1470° / 55°0
70 °
Apple River, Wednesday, 14 October
Clear. High 70°, low 55°.
Pressure30.12 inHg
Wind8.7 mph NE
Humidity67%
Visibility6.2 mi
Dew point52°
Thu, 1559° / 54°0.41
59 °
Apple River, Thursday, 15 October
Rain. High 59°, low 54°.
Pressure30.03 inHg
Wind9.6 mph E
Humidity93%
Visibility2.0 mi
Dew point55°
Fri, 1653° / 44°0.02
53 °
Apple River, Friday, 16 October
Light rain. High 53°, low 44°.
Pressure30.27 inHg
Wind25.4 mph NW
Humidity56%
Visibility6.2 mi
Dew point38°
Sat, 1756° / 35°0
56 °
Apple River, Saturday, 17 October
Clear. High 56°, low 35°.
Pressure30.47 inHg
Wind14.2 mph SW
Humidity45%
Visibility—
Dew point31°
Sun, 1861° / 45°0
61 °
Apple River, Sunday, 18 October
Partly cloudy. High 61°, low 45°.
Pressure30.18 inHg
Wind15.4 mph SW
Humidity55%
Visibility—
Dew point41°
Mon, 1952° / 48°0.14
52 °
Apple River, Monday, 19 October
Light rain. High 52°, low 48°.
Pressure30.24 inHg
Wind11.7 mph SW
Humidity89%
Visibility—
Dew point48°
Tue, 2060° / 48°0.01
60 °
Apple River, Tuesday, 20 October
Light rain. High 60°, low 48°.
Pressure30.21 inHg
Wind10.5 mph SE
Humidity90%
Visibility—
Dew point54°
Wed, 2171° / 55°0
71 °
Apple River, Wednesday, 21 October
Overcast. High 71°, low 55°.
Pressure30.18 inHg
Wind12.9 mph S
Humidity80%
Visibility—
Dew point59°
Thu, 2267° / 61°1.8
67 °
Apple River, Thursday, 22 October
Heavy rain. High 67°, low 61°.
Pressure29.97 inHg
Wind21.3 mph S
Humidity91%
Visibility—
Dew point62°
Fri, 2364° / 51°0.12
64 °
Apple River, Friday, 23 October
Light rain. High 64°, low 51°.
Pressure29.91 inHg
Wind26.3 mph S
Humidity67%
Visibility—
Dew point48°
Sat, 2451° / 41°0
51 °
Apple River, Saturday, 24 October
Mostly clear. High 51°, low 41°.
Pressure30.24 inHg
Wind15.1 mph NW
Humidity59%
Visibility—
Dew point36°
Sun, 2553° / 37°0
53 °
Apple River, Sunday, 25 October
Overcast. High 53°, low 37°.
Pressure30.18 inHg
Wind7.9 mph W
Humidity55%
Visibility—
Dew point35°
Mon, 2654° / 38°0
54 °
Apple River, Monday, 26 October
Clear. High 54°, low 38°.
Pressure30.33 inHg
Wind7.1 mph NW
Humidity58%
Visibility—
Dew point37°
Tue, 2756° / 40°0
56 °
Apple River, Tuesday, 27 October
Partly cloudy. High 56°, low 40°.
Pressure30.18 inHg
Wind14.5 mph SW
Humidity58%
Visibility—
Dew point39°
Wed, 2853° / 44°0
53 °
Apple River, Wednesday, 28 October
Clear. High 53°, low 44°.
Pressure30.03 inHg
Wind15.4 mph NW
Humidity54%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2954° / 40°0.06
54 °
Apple River, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.06 in
Chance of precipitation23%
Record high78° (2024)
Record low26° (1980)
Fri, 3056° / 41°0.11
56 °
Apple River, Friday, 30 October
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.11 in
Chance of precipitation32%
Record high76° (2024)
Record low23° (1988)
Sat, 3154° / 41°0.11
54 °
Apple River, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high54°
Average low41°
Average precipitation0.11 in
Chance of precipitation33%
Record high69° (1968)
Record low24° (2019)
Sun, 0153° / 40°0.21
53 °
Apple River, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.21 in
Chance of precipitation38%
Record high74° (2000)
Record low21° (2019)
Mon, 0252° / 39°0.11
52 °
Apple River, Monday, 2 November
Climate normal for this date — 60-year average.
Average high52°
Average low39°
Average precipitation0.11 in
Chance of precipitation33%
Record high70° (1961)
Record low19° (1991)
Tue, 0351° / 38°0.06
51 °
Apple River, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.06 in
Chance of precipitation25%
Record high71° (1964)
Record low15° (1991)
Wed, 0451° / 38°0.09
51 °
Apple River, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.09 in
Chance of precipitation27%
Record high70° (2008)
Record low13° (1991)
Thu, 0550° / 37°0.09
50 °
Apple River, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.09 in
Chance of precipitation23%
Record high69° (1978)
Record low19° (1991)
Fri, 0650° / 36°0.07
50 °
Apple River, Friday, 6 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.07 in
Chance of precipitation28%
Record high68° (2020)
Record low16° (1991)
Sat, 0749° / 36°0.03
49 °
Apple River, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.03 in
Chance of precipitation18%
Record high67° (2009)
Record low5° (1991)
Sun, 0849° / 36°0.05
49 °
Apple River, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.05 in
Chance of precipitation17%
Record high71° (2020)
Record low12° (1991)
Mon, 0949° / 36°0.11
49 °
Apple River, Monday, 9 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.11 in
Chance of precipitation35%
Record high71° (2020)
Record low17° (1991)
Tue, 1047° / 34°0.09
47 °
Apple River, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.09 in
Chance of precipitation32%
Record high71° (2022)
Record low14° (2017)
Wed, 1145° / 32°0.07
45 °
Apple River, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.07 in
Chance of precipitation25%
Record high69° (1964)
Record low13° (2019)
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 Apple River, 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 Apple River, 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.