Monthly outlook for Garden Plain, IL: average high 55.2°, average low 44.2°. That is 1.4° above the climate normal for October. Precipitation is expected on 9 days (about 5.1 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 28 October (74.7°), the coolest 12 November (29.7°).
55.2°/44.2°
Average high / low
+1.4°
Above normal
9 / 4
Wet days / normal
5.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
28 October – 6 November
61.7°
54.6°
+4°
7 November – 16 November
44.5°
48.9°
-2.5°
17 November – 26 November
at normal
45.3°
—
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).
Thu, 2968° / 47°0.08
68 °
Garden Plain, Thursday, 29 October
Light rain. High 68°, low 47°.
Pressure30.15 inHg
Wind8.1 mph N
Humidity70%
Visibility6.2 mi
Dew point51°
Fri, 3060° / 43°0.13
60 °
Garden Plain, Friday, 30 October
Rain. High 60°, low 43°.
Pressure30.33 inHg
Wind4.9 mph E
Humidity63%
Visibility6.2 mi
Dew point43°
Sat, 3164° / 52°0.71
64 °
Garden Plain, Saturday, 31 October
Heavy rain. High 64°, low 52°.
Pressure30.27 inHg
Wind3.2 mph E
Humidity82%
Visibility6.2 mi
Dew point53°
Sun, 0168° / 55°0
68 °
Garden Plain, Sunday, 1 November
Overcast. High 68°, low 55°.
Pressure30.30 inHg
Wind4.4 mph SE
Humidity75%
Visibility6.2 mi
Dew point56°
Mon, 0262° / 55°0.44
62 °
Garden Plain, Monday, 2 November
Rain. High 62°, low 55°.
Pressure30.03 inHg
Wind16.4 mph SE
Humidity74%
Visibility—
Dew point53°
Tue, 0361° / 59°1.33
61 °
Garden Plain, Tuesday, 3 November
Rain. High 61°, low 59°.
Pressure29.85 inHg
Wind16.7 mph S
Humidity94%
Visibility—
Dew point59°
Wed, 0457° / 56°0.93
57 °
Garden Plain, Wednesday, 4 November
Rain. High 57°, low 56°.
Pressure29.77 inHg
Wind13.9 mph E
Humidity93%
Visibility—
Dew point54°
Thu, 0556° / 43°0.52
56 °
Garden Plain, Thursday, 5 November
Rain. High 56°, low 43°.
Pressure29.47 inHg
Wind18.5 mph NW
Humidity89%
Visibility—
Dew point52°
Fri, 0645° / 35°0
45 °
Garden Plain, Friday, 6 November
Clear. High 45°, low 35°.
Pressure29.85 inHg
Wind15.6 mph W
Humidity58%
Visibility—
Dew point29°
Sat, 0746° / 31°0
46 °
Garden Plain, Saturday, 7 November
Clear. High 46°, low 31°.
Pressure30.12 inHg
Wind9.8 mph W
Humidity51%
Visibility—
Dew point26°
Sun, 0844° / 41°0.78
44 °
Garden Plain, Sunday, 8 November
Rain. High 44°, low 41°.
Pressure30.15 inHg
Wind10.7 mph E
Humidity96%
Visibility—
Dew point41°
Mon, 0948° / 44°0.19
48 °
Garden Plain, Monday, 9 November
Light rain. High 48°, low 44°.
Pressure29.94 inHg
Wind9.8 mph N
Humidity90%
Visibility—
Dew point44°
Tue, 1048° / 37°0.01
48 °
Garden Plain, Tuesday, 10 November
Light rain. High 48°, low 37°.
Pressure29.80 inHg
Wind12.1 mph NW
Humidity78%
Visibility—
Dew point40°
Wed, 1140° / 30°0
40 °
Garden Plain, Wednesday, 11 November
Mostly clear. High 40°, low 30°.
Pressure30.03 inHg
Wind13 mph NW
Humidity57%
Visibility—
Dew point24°
Thu, 1241° / 30°0
41 °
Garden Plain, Thursday, 12 November
Partly cloudy. High 41°, low 30°.
Pressure30.09 inHg
Wind10.5 mph NW
Humidity58%
Visibility—
Dew point26°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Sun, 2245° / 30°0.03
45 °
Garden Plain, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high45°
Average low30°
Average precipitation0.03 in
Chance of precipitation15%
Record high67° (2010)
Record low4° (2015)
Mon, 2344° / 31°0.08
44 °
Garden Plain, Monday, 23 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.08 in
Chance of precipitation30%
Record high65° (1966)
Record low11° (1970)
Tue, 2443° / 29°0.08
43 °
Garden Plain, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high43°
Average low29°
Average precipitation0.08 in
Chance of precipitation25%
Record high64° (1966)
Record low8° (1985)
Wed, 2543° / 30°0.07
43 °
Garden Plain, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high43°
Average low30°
Average precipitation0.07 in
Chance of precipitation27%
Record high59° (2006)
Record low5° (1977)
Thu, 2644° / 29°0.11
44 °
Garden Plain, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high44°
Average low29°
Average precipitation0.11 in
Chance of precipitation40%
Record high65° (1965)
Record low-4° (1977)
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.