Monthly outlook for Garden Plain, IL: average high 58.2°, average low 46.6°. That is 2.7° above the climate normal for October. Precipitation is expected on 5 days (about 2.4 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 28 October (73.5°), the coolest 11 November (29.7°).
58.2°/46.6°
Average high / low
+2.7°
Above normal
5 / 4
Wet days / normal
2.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
27 October – 5 November
62.5°
55°
+4.2°
6 November – 15 November
51°
49.4°
+0.9°
16 November – 25 November
at normal
45.7°
—
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).
Wed, 2874° / 54°0
74 °
Garden Plain, Wednesday, 28 October
Overcast. High 74°, low 54°.
Pressure30.15 inHg
Wind7.9 mph S
Humidity59%
Visibility6.2 mi
Dew point54°
Thu, 2967° / 50°0.02
67 °
Garden Plain, Thursday, 29 October
Light rain. High 67°, low 50°.
Pressure30.09 inHg
Wind7 mph NW
Humidity81%
Visibility6.2 mi
Dew point59°
Fri, 3062° / 46°0.59
62 °
Garden Plain, Friday, 30 October
Rain. High 62°, low 46°.
Pressure30.27 inHg
Wind5.2 mph SE
Humidity58%
Visibility6.2 mi
Dew point45°
Sat, 3164° / 53°0.17
64 °
Garden Plain, Saturday, 31 October
Light rain. High 64°, low 53°.
Pressure30.18 inHg
Wind6.8 mph E
Humidity78%
Visibility—
Dew point56°
Sun, 0167° / 53°0
67 °
Garden Plain, Sunday, 1 November
Light rain. High 67°, low 53°.
Pressure30.21 inHg
Wind8.2 mph E
Humidity77%
Visibility—
Dew point56°
Mon, 0260° / 56°0
60 °
Garden Plain, Monday, 2 November
Overcast. High 60°, low 56°.
Pressure29.88 inHg
Wind10 mph E
Humidity89%
Visibility—
Dew point55°
Tue, 0358° / 54°0
58 °
Garden Plain, Tuesday, 3 November
Overcast. High 58°, low 54°.
Pressure30.03 inHg
Wind15.6 mph NE
Humidity81%
Visibility—
Dew point51°
Wed, 0454° / 50°0.33
54 °
Garden Plain, Wednesday, 4 November
Rain. High 54°, low 50°.
Pressure29.97 inHg
Wind15.7 mph NE
Humidity76%
Visibility—
Dew point46°
Thu, 0551° / 48°0.85
51 °
Garden Plain, Thursday, 5 November
Rain. High 51°, low 48°.
Pressure29.74 inHg
Wind16.9 mph NE
Humidity92%
Visibility—
Dew point49°
Fri, 0650° / 43°0.02
50 °
Garden Plain, Friday, 6 November
Light rain. High 50°, low 43°.
Pressure29.91 inHg
Wind14.9 mph N
Humidity84%
Visibility—
Dew point42°
Sat, 0754° / 39°0
54 °
Garden Plain, Saturday, 7 November
Overcast. High 54°, low 39°.
Pressure29.97 inHg
Wind6.1 mph N
Humidity57%
Visibility—
Dew point35°
Sun, 0857° / 41°0
57 °
Garden Plain, Sunday, 8 November
Overcast. High 57°, low 41°.
Pressure30.00 inHg
Wind9.9 mph S
Humidity57%
Visibility—
Dew point38°
Mon, 0958° / 47°0.41
58 °
Garden Plain, Monday, 9 November
Rain. High 58°, low 47°.
Pressure29.74 inHg
Wind15.7 mph W
Humidity96%
Visibility—
Dew point50°
Tue, 1045° / 35°0
45 °
Garden Plain, Tuesday, 10 November
Partly cloudy. High 45°, low 35°.
Pressure30.09 inHg
Wind17.4 mph NW
Humidity57%
Visibility—
Dew point29°
Wed, 1142° / 30°0
42 °
Garden Plain, Wednesday, 11 November
Overcast. High 42°, low 30°.
Pressure30.30 inHg
Wind6.6 mph SE
Humidity44%
Visibility—
Dew point19°
From day 17 onward the outlook is built from 60-year climate statistics
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)
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)
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.