Monthly outlook for Richmond, IL: average high 59.6°, average low 45.1°. That is 1.9° above the climate normal for October. Precipitation is expected on 3 days (about 0.9 inches), against a normal of 5 days and 1.3 inches. The warmest day looks like 23 October (70.5°), the coolest 17 October (36.8°).
59.6°/45.1°
Average high / low
+1.9°
Above normal
3 / 5
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
16 October – 25 October
62.6°
57.3°
+2.9°
26 October – 4 November
54.6°
53.3°
+0.7°
5 November – 14 November
at normal
47.9°
—
October records over 66 years
85.3°3 October 2025All-time high
25°30 October 1988All-time low
Climate normals and records are computed from the nearest reference point — New Munster (9 mi).
Sat, 1754° / 37°0
54 °
Richmond, Saturday, 17 October
Clear. High 54°, low 37°.
Pressure30.53 inHg
Wind8.1 mph SW
Humidity46%
Visibility6.2 mi
Dew point28°
Sun, 1861° / 43°0
61 °
Richmond, Sunday, 18 October
Clear. High 61°, low 43°.
Pressure30.39 inHg
Wind15.6 mph SW
Humidity50%
Visibility6.2 mi
Dew point39°
Mon, 1964° / 42°0
64 °
Richmond, Monday, 19 October
Clear. High 64°, low 42°.
Pressure30.39 inHg
Wind5.1 mph SW
Humidity55%
Visibility6.2 mi
Dew point44°
Tue, 2065° / 46°0
65 °
Richmond, Tuesday, 20 October
Overcast. High 65°, low 46°.
Pressure30.39 inHg
Wind4.6 mph SE
Humidity59%
Visibility6.2 mi
Dew point47°
Wed, 2167° / 46°0
67 °
Richmond, Wednesday, 21 October
Clear. High 67°, low 46°.
Pressure30.27 inHg
Wind6.2 mph SW
Humidity48%
Visibility—
Dew point44°
Thu, 2266° / 50°0.01
66 °
Richmond, Thursday, 22 October
Light rain. High 66°, low 50°.
Pressure30.18 inHg
Wind4.8 mph SW
Humidity54%
Visibility—
Dew point47°
Fri, 2370° / 55°0
70 °
Richmond, Friday, 23 October
Overcast. High 70°, low 55°.
Pressure30.24 inHg
Wind8.1 mph S
Humidity40%
Visibility—
Dew point42°
Sat, 2469° / 55°0
69 °
Richmond, Saturday, 24 October
Overcast. High 69°, low 55°.
Pressure30.18 inHg
Wind14.9 mph S
Humidity42%
Visibility—
Dew point43°
Sun, 2555° / 44°0
55 °
Richmond, Sunday, 25 October
Overcast. High 55°, low 44°.
Pressure30.36 inHg
Wind12.1 mph N
Humidity52%
Visibility—
Dew point37°
Mon, 2650° / 43°0
50 °
Richmond, Monday, 26 October
Light rain. High 50°, low 43°.
Pressure30.36 inHg
Wind8.1 mph SE
Humidity74%
Visibility—
Dew point39°
Tue, 2763° / 48°0
63 °
Richmond, Tuesday, 27 October
Light rain. High 63°, low 48°.
Pressure30.09 inHg
Wind12.9 mph W
Humidity70%
Visibility—
Dew point51°
Wed, 2852° / 38°0
52 °
Richmond, Wednesday, 28 October
Clear. High 52°, low 38°.
Pressure30.15 inHg
Wind11.4 mph NW
Humidity50%
Visibility—
Dew point32°
Thu, 2953° / 41°0.33
53 °
Richmond, Thursday, 29 October
Rain. High 53°, low 41°.
Pressure30.00 inHg
Wind13.7 mph E
Humidity58%
Visibility—
Dew point37°
Fri, 3057° / 47°0.56
57 °
Richmond, Friday, 30 October
Rain. High 57°, low 47°.
Pressure29.50 inHg
Wind18.6 mph N
Humidity93%
Visibility—
Dew point55°
Sat, 3153° / 43°0
53 °
Richmond, Saturday, 31 October
Clear. High 53°, low 43°.
Pressure30.09 inHg
Wind17.7 mph NW
Humidity51%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0153° / 41°0.15
53 °
Richmond, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high53°
Average low41°
Average precipitation0.15 in
Chance of precipitation43%
Record high72° (2016)
Record low21° (2019)
Mon, 0252° / 40°0.12
52 °
Richmond, Monday, 2 November
Climate normal for this date — 60-year average.
Average high52°
Average low40°
Average precipitation0.12 in
Chance of precipitation40%
Record high72° (1961)
Record low22° (1991)
Tue, 0351° / 39°0.05
51 °
Richmond, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high51°
Average low39°
Average precipitation0.05 in
Chance of precipitation27%
Record high70° (1987)
Record low17° (1991)
Wed, 0451° / 40°0.09
51 °
Richmond, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.09 in
Chance of precipitation28%
Record high69° (2015)
Record low14° (1991)
Thu, 0551° / 39°0.11
51 °
Richmond, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high51°
Average low39°
Average precipitation0.11 in
Chance of precipitation30%
Record high71° (1978)
Record low19° (1991)
Fri, 0650° / 38°0.08
50 °
Richmond, Friday, 6 November
Climate normal for this date — 60-year average.
Average high50°
Average low38°
Average precipitation0.08 in
Chance of precipitation27%
Record high70° (1975)
Record low20° (1991)
Sat, 0750° / 38°0.04
50 °
Richmond, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high50°
Average low38°
Average precipitation0.04 in
Chance of precipitation18%
Record high68° (2020)
Record low12° (1991)
Sun, 0849° / 38°0.04
49 °
Richmond, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high49°
Average low38°
Average precipitation0.04 in
Chance of precipitation17%
Record high70° (2020)
Record low14° (1991)
Mon, 0949° / 38°0.1
49 °
Richmond, Monday, 9 November
Climate normal for this date — 60-year average.
Average high49°
Average low38°
Average precipitation0.1 in
Chance of precipitation30%
Record high72° (2020)
Record low20° (1991)
Tue, 1048° / 37°0.1
48 °
Richmond, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high48°
Average low37°
Average precipitation0.1 in
Chance of precipitation37%
Record high72° (2022)
Record low16° (2017)
Wed, 1146° / 34°0.06
46 °
Richmond, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.06 in
Chance of precipitation28%
Record high68° (1964)
Record low14° (2019)
Thu, 1244° / 33°0.06
44 °
Richmond, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high44°
Average low33°
Average precipitation0.06 in
Chance of precipitation20%
Record high63° (1964)
Record low5° (2019)
Fri, 1345° / 33°0.04
45 °
Richmond, Friday, 13 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.04 in
Chance of precipitation20%
Record high67° (1999)
Record low8° (2019)
Sat, 1446° / 33°0.06
46 °
Richmond, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.06 in
Chance of precipitation25%
Record high66° (1971)
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 Richmond, 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 Richmond, 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.