Monthly outlook for Garden Plain, IL: average high 62.2°, average low 48.8°. That is 3.8° above the climate normal for October. Precipitation is expected on 4 days (about 0.9 inches), against a normal of 4 days and 1.5 inches. The warmest day looks like 23 October (73.1°), the coolest 5 November (37.4°).
62.2°/48.8°
Average high / low
+3.8°
Above normal
4 / 4
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
23 October – 1 November
66.5°
56.9°
+5.4°
2 November – 11 November
54.9°
51.7°
+1.8°
12 November – 21 November
at normal
47.1°
—
October records over 66 years
88.2°3 October 2025All-time high
17.8°28 October 1967All-time low
Climate normals and records are computed from the nearest reference point — Princeton (15 mi).
Sat, 2471° / 52°0
71 °
Garden Plain, Saturday, 24 October
Partly cloudy. High 71°, low 52°.
Pressure30.33 inHg
Wind8.9 mph S
Humidity57%
Visibility6.2 mi
Dew point50°
Sun, 2572° / 52°0
72 °
Garden Plain, Sunday, 25 October
Partly cloudy. High 72°, low 52°.
Pressure30.36 inHg
Wind3.9 mph S
Humidity59%
Visibility6.2 mi
Dew point52°
Mon, 2667° / 53°0
67 °
Garden Plain, Monday, 26 October
Overcast. High 67°, low 53°.
Pressure30.36 inHg
Wind7.4 mph E
Humidity76%
Visibility6.2 mi
Dew point56°
Tue, 2765° / 50°0
65 °
Garden Plain, Tuesday, 27 October
Overcast. High 65°, low 50°.
Pressure30.27 inHg
Wind7.9 mph SE
Humidity64%
Visibility—
Dew point50°
Wed, 2872° / 55°0
72 °
Garden Plain, Wednesday, 28 October
Light rain. High 72°, low 55°.
Pressure30.06 inHg
Wind12.9 mph S
Humidity50%
Visibility—
Dew point48°
Thu, 2967° / 55°0.11
67 °
Garden Plain, Thursday, 29 October
Light rain. High 67°, low 55°.
Pressure30.09 inHg
Wind12.6 mph S
Humidity55%
Visibility—
Dew point49°
Fri, 3057° / 54°0.18
57 °
Garden Plain, Friday, 30 October
Light rain. High 57°, low 54°.
Pressure30.12 inHg
Wind10.5 mph E
Humidity87%
Visibility—
Dew point52°
Sat, 3160° / 55°0.48
60 °
Garden Plain, Saturday, 31 October
Rain. High 60°, low 55°.
Pressure29.88 inHg
Wind15.5 mph S
Humidity94%
Visibility—
Dew point55°
Sun, 0161° / 51°0.05
61 °
Garden Plain, Sunday, 1 November
Light rain. High 61°, low 51°.
Pressure30.00 inHg
Wind10.8 mph NW
Humidity54%
Visibility—
Dew point44°
Mon, 0260° / 45°0
60 °
Garden Plain, Monday, 2 November
Overcast. High 60°, low 45°.
Pressure30.12 inHg
Wind11.9 mph NE
Humidity46%
Visibility—
Dew point37°
Tue, 0355° / 47°0.02
55 °
Garden Plain, Tuesday, 3 November
Light rain. High 55°, low 47°.
Pressure30.24 inHg
Wind8.6 mph E
Humidity69%
Visibility—
Dew point44°
Wed, 0450° / 42°0.04
50 °
Garden Plain, Wednesday, 4 November
Light rain. High 50°, low 42°.
Pressure30.09 inHg
Wind12.3 mph NW
Humidity82%
Visibility—
Dew point41°
Thu, 0554° / 37°0
54 °
Garden Plain, Thursday, 5 November
Overcast. High 54°, low 37°.
Pressure30.06 inHg
Wind13.4 mph W
Humidity50%
Visibility—
Dew point32°
Fri, 0661° / 44°0
61 °
Garden Plain, Friday, 6 November
Clear. High 61°, low 44°.
Pressure29.88 inHg
Wind11.9 mph NW
Humidity57%
Visibility—
Dew point43°
Sat, 0750° / 40°0
50 °
Garden Plain, Saturday, 7 November
Overcast. High 50°, low 40°.
Pressure30.09 inHg
Wind14.1 mph SE
Humidity60%
Visibility—
Dew point35°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0852° / 37°0.04
52 °
Garden Plain, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.04 in
Chance of precipitation15%
Record high75° (1999)
Record low12° (1991)
Mon, 0951° / 37°0.11
51 °
Garden Plain, Monday, 9 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.11 in
Chance of precipitation33%
Record high74° (1999)
Record low17° (1991)
Tue, 1050° / 35°0.1
50 °
Garden Plain, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.1 in
Chance of precipitation28%
Record high73° (2022)
Record low15° (2018)
Wed, 1148° / 33°0.07
48 °
Garden Plain, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.07 in
Chance of precipitation22%
Record high72° (1964)
Record low15° (2019)
Thu, 1246° / 32°0.06
46 °
Garden Plain, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.06 in
Chance of precipitation25%
Record high66° (1964)
Record low7° (2019)
Fri, 1347° / 32°0.05
47 °
Garden Plain, Friday, 13 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.05 in
Chance of precipitation25%
Record high72° (1999)
Record low6° (1986)
Sat, 1448° / 33°0.06
48 °
Garden Plain, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.06 in
Chance of precipitation28%
Record high70° (2025)
Record low14° (1986)
Sun, 1547° / 34°0.07
47 °
Garden Plain, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.07 in
Chance of precipitation28%
Record high69° (2025)
Record low18° (1982)
Mon, 1648° / 33°0.06
48 °
Garden Plain, Monday, 16 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.06 in
Chance of precipitation25%
Record high66° (1971)
Record low17° (1997)
Tue, 1748° / 34°0.13
48 °
Garden Plain, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.13 in
Chance of precipitation25%
Record high73° (2016)
Record low14° (2005)
Wed, 1848° / 34°0.07
48 °
Garden Plain, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.07 in
Chance of precipitation30%
Record high70° (1999)
Record low11° (2014)
Thu, 1948° / 33°0.06
48 °
Garden Plain, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.06 in
Chance of precipitation27%
Record high66° (1979)
Record low16° (2022)
Fri, 2046° / 32°0.1
46 °
Garden Plain, Friday, 20 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.1 in
Chance of precipitation32%
Record high65° (2003)
Record low16° (2022)
Sat, 2144° / 30°0.08
44 °
Garden Plain, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high44°
Average low30°
Average precipitation0.08 in
Chance of precipitation22%
Record high66° (1990)
Record low7° (1964)
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 Garden Plain, 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 Garden Plain, 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.