Monthly outlook for Pekin, IL: average high 63.2°, average low 49.8°. That is 4.7° above the climate normal for October. Precipitation is expected on 5 days (about 1.8 inches), against a normal of 4 days and 1.6 inches. The warmest day looks like 28 October (77.4°), the coolest 9 November (38°).
63.2°/49.8°
Average high / low
+4.7°
Above normal
5 / 4
Wet days / normal
1.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
27 October – 5 November
68°
56.2°
+6.6°
6 November – 15 November
55.2°
50.8°
+2.4°
16 November – 25 November
at normal
47.2°
—
October records over 66 years
89.1°3 October 2025All-time high
21°22 October 1976All-time low
Climate normals and records are computed from the nearest reference point — Peoria (13 mi).
Wed, 2877° / 53°0
77 °
Pekin, Wednesday, 28 October
Mostly clear. High 77°, low 53°.
Pressure30.18 inHg
Wind7.6 mph S
Humidity54%
Visibility6.2 mi
Dew point52°
Thu, 2969° / 55°0
69 °
Pekin, Thursday, 29 October
Light rain. High 69°, low 55°.
Pressure30.12 inHg
Wind7.1 mph W
Humidity62%
Visibility6.2 mi
Dew point56°
Fri, 3071° / 47°0.07
71 °
Pekin, Friday, 30 October
Light rain. High 71°, low 47°.
Pressure30.27 inHg
Wind5.6 mph E
Humidity51%
Visibility6.2 mi
Dew point47°
Sat, 3168° / 57°0.62
68 °
Pekin, Saturday, 31 October
Heavy rain. High 68°, low 57°.
Pressure30.24 inHg
Wind3.8 mph S
Humidity84%
Visibility6.2 mi
Dew point60°
Sun, 0170° / 54°0
70 °
Pekin, Sunday, 1 November
Overcast. High 70°, low 54°.
Pressure30.18 inHg
Wind6.6 mph SE
Humidity66%
Visibility—
Dew point55°
Mon, 0265° / 55°0
65 °
Pekin, Monday, 2 November
Overcast. High 65°, low 55°.
Pressure29.88 inHg
Wind6.4 mph SE
Humidity80%
Visibility—
Dew point56°
Tue, 0367° / 60°0.65
67 °
Pekin, Tuesday, 3 November
Rain. High 67°, low 60°.
Pressure29.68 inHg
Wind22.3 mph E
Humidity86%
Visibility—
Dew point58°
Wed, 0466° / 56°0.4
66 °
Pekin, Wednesday, 4 November
Rain. High 66°, low 56°.
Pressure29.68 inHg
Wind17.7 mph E
Humidity52%
Visibility—
Dew point45°
Thu, 0556° / 52°0.06
56 °
Pekin, Thursday, 5 November
Light rain. High 56°, low 52°.
Pressure29.59 inHg
Wind9.3 mph W
Humidity78%
Visibility—
Dew point48°
Fri, 0657° / 51°0.02
57 °
Pekin, Friday, 6 November
Light rain. High 57°, low 51°.
Pressure29.80 inHg
Wind13.3 mph N
Humidity86%
Visibility—
Dew point51°
Sat, 0756° / 45°0.01
56 °
Pekin, Saturday, 7 November
Light rain. High 56°, low 45°.
Pressure30.18 inHg
Wind12.1 mph N
Humidity57%
Visibility—
Dew point39°
Sun, 0854° / 39°0
54 °
Pekin, Sunday, 8 November
Clear. High 54°, low 39°.
Pressure30.30 inHg
Wind8.8 mph NE
Humidity41%
Visibility—
Dew point28°
Mon, 0953° / 38°0
53 °
Pekin, Monday, 9 November
Clear. High 53°, low 38°.
Pressure30.24 inHg
Wind11.4 mph E
Humidity45%
Visibility—
Dew point30°
Tue, 1055° / 40°0
55 °
Pekin, Tuesday, 10 November
Overcast. High 55°, low 40°.
Pressure30.24 inHg
Wind8.6 mph NE
Humidity40%
Visibility—
Dew point29°
Wed, 1156° / 44°0
56 °
Pekin, Wednesday, 11 November
Overcast. High 56°, low 44°.
Pressure30.09 inHg
Wind5 mph NE
Humidity42%
Visibility—
Dew point31°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 1248° / 33°0.07
48 °
Pekin, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.07 in
Chance of precipitation25%
Record high70° (2010)
Record low9° (2019)
Fri, 1349° / 34°0.06
49 °
Pekin, Friday, 13 November
Climate normal for this date — 60-year average.
Average high49°
Average low34°
Average precipitation0.06 in
Chance of precipitation15%
Record high72° (1999)
Record low7° (1986)
Sat, 1449° / 35°0.07
49 °
Pekin, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.07 in
Chance of precipitation28%
Record high72° (1971)
Record low14° (1986)
Sun, 1549° / 35°0.07
49 °
Pekin, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.07 in
Chance of precipitation30%
Record high70° (2025)
Record low18° (2014)
Mon, 1649° / 35°0.06
49 °
Pekin, Monday, 16 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.06 in
Chance of precipitation23%
Record high69° (1971)
Record low21° (1997)
Tue, 1750° / 35°0.12
50 °
Pekin, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.12 in
Chance of precipitation30%
Record high73° (2016)
Record low16° (2005)
Wed, 1849° / 36°0.14
49 °
Pekin, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.14 in
Chance of precipitation33%
Record high69° (1999)
Record low12° (2014)
Thu, 1949° / 35°0.07
49 °
Pekin, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.07 in
Chance of precipitation28%
Record high68° (1979)
Record low19° (2014)
Fri, 2047° / 34°0.1
47 °
Pekin, Friday, 20 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.1 in
Chance of precipitation32%
Record high67° (2007)
Record low17° (2022)
Sat, 2146° / 32°0.09
46 °
Pekin, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.09 in
Chance of precipitation27%
Record high67° (1990)
Record low9° (1964)
Sun, 2247° / 31°0.05
47 °
Pekin, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high47°
Average low31°
Average precipitation0.05 in
Chance of precipitation23%
Record high69° (2010)
Record low3° (2015)
Mon, 2346° / 32°0.07
46 °
Pekin, Monday, 23 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.07 in
Chance of precipitation27%
Record high65° (2003)
Record low12° (1970)
Tue, 2445° / 31°0.09
45 °
Pekin, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high45°
Average low31°
Average precipitation0.09 in
Chance of precipitation23%
Record high67° (1966)
Record low12° (1970)
Wed, 2545° / 31°0.07
45 °
Pekin, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high45°
Average low31°
Average precipitation0.07 in
Chance of precipitation28%
Record high64° (2006)
Record low10° (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 Pekin, 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 Pekin, 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.