Monthly outlook for Royal Heights, IL: average high 56.2°, average low 40.9°. That is 1.2° above the climate normal for November. Precipitation is expected on 2 days (about 2.2 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 9 November (71.1°), the coolest 15 November (31.3°).
56.2°/40.9°
Average high / low
+1.2°
Above normal
2 / 5
Wet days / normal
2.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 November – 18 November
56.6°
55.2°
+0.8°
19 November – 28 November
55.7°
51.2°
+2.5°
29 November – 8 December
at normal
46.4°
—
November records over 66 years
80.8°8 November 2023All-time high
6.4°8 November 1991All-time low
Climate normals and records are computed from the nearest reference point — St. Louis (14 mi).
Tue, 1070° / 46°0
70 °
Royal Heights, Tuesday, 10 November
Clear. High 70°, low 46°.
Pressure30.09 inHg
Wind3.8 mph W
Humidity61%
Visibility6.2 mi
Dew point50°
Wed, 1167° / 46°0
67 °
Royal Heights, Wednesday, 11 November
Overcast. High 67°, low 46°.
Pressure29.80 inHg
Wind12.3 mph W
Humidity68%
Visibility6.2 mi
Dew point53°
Thu, 1252° / 44°0
52 °
Royal Heights, Thursday, 12 November
Overcast. High 52°, low 44°.
Pressure29.97 inHg
Wind12.4 mph NW
Humidity52%
Visibility6.2 mi
Dew point35°
Fri, 1343° / 37°0
43 °
Royal Heights, Friday, 13 November
Overcast. High 43°, low 37°.
Pressure30.12 inHg
Wind10.8 mph N
Humidity61%
Visibility6.2 mi
Dew point24°
Sat, 1446° / 32°0
46 °
Royal Heights, Saturday, 14 November
Clear. High 46°, low 32°.
Pressure30.27 inHg
Wind3.6 mph NW
Humidity57%
Visibility—
Dew point29°
Sun, 1550° / 31°0
50 °
Royal Heights, Sunday, 15 November
Overcast. High 50°, low 31°.
Pressure30.33 inHg
Wind6.4 mph E
Humidity47%
Visibility—
Dew point27°
Mon, 1653° / 33°0
53 °
Royal Heights, Monday, 16 November
Overcast. High 53°, low 33°.
Pressure30.39 inHg
Wind7 mph E
Humidity34%
Visibility—
Dew point21°
Tue, 1755° / 34°0
55 °
Royal Heights, Tuesday, 17 November
Clear. High 55°, low 34°.
Pressure30.45 inHg
Wind7.2 mph SE
Humidity40%
Visibility—
Dew point27°
Wed, 1858° / 36°0
58 °
Royal Heights, Wednesday, 18 November
Clear. High 58°, low 36°.
Pressure30.39 inHg
Wind9.7 mph S
Humidity37%
Visibility—
Dew point27°
Thu, 1962° / 42°0
62 °
Royal Heights, Thursday, 19 November
Overcast. High 62°, low 42°.
Pressure30.33 inHg
Wind10.5 mph S
Humidity43%
Visibility—
Dew point36°
Fri, 2059° / 48°0
59 °
Royal Heights, Friday, 20 November
Overcast. High 59°, low 48°.
Pressure30.36 inHg
Wind6.9 mph S
Humidity37%
Visibility—
Dew point31°
Sat, 2154° / 51°1.05
54 °
Royal Heights, Saturday, 21 November
Rain. High 54°, low 51°.
Pressure30.30 inHg
Wind13.9 mph E
Humidity95%
Visibility—
Dew point51°
Sun, 2253° / 50°1.16
53 °
Royal Heights, Sunday, 22 November
Rain. High 53°, low 50°.
Pressure30.03 inHg
Wind16.5 mph E
Humidity93%
Visibility—
Dew point49°
Mon, 2356° / 45°0
56 °
Royal Heights, Monday, 23 November
Overcast. High 56°, low 45°.
Pressure29.91 inHg
Wind13.9 mph SW
Humidity64%
Visibility—
Dew point43°
Tue, 2451° / 41°0
51 °
Royal Heights, Tuesday, 24 November
Overcast. High 51°, low 41°.
Pressure29.97 inHg
Wind11.5 mph W
Humidity46%
Visibility—
Dew point28°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2551° / 36°0.16
51 °
Royal Heights, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.16 in
Chance of precipitation33%
Record high69° (1990)
Record low22° (1977)
Thu, 2651° / 37°0.17
51 °
Royal Heights, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.17 in
Chance of precipitation43%
Record high75° (1965)
Record low14° (1977)
Fri, 2750° / 36°0.2
50 °
Royal Heights, Friday, 27 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.2 in
Chance of precipitation43%
Record high71° (1989)
Record low16° (1993)
Sat, 2847° / 33°0.1
47 °
Royal Heights, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.1 in
Chance of precipitation22%
Record high71° (1998)
Record low13° (1977)
Sun, 2948° / 34°0.07
48 °
Royal Heights, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.07 in
Chance of precipitation27%
Record high71° (1998)
Record low16° (1976)
Mon, 3049° / 34°0.17
49 °
Royal Heights, Monday, 30 November
Climate normal for this date — 60-year average.
Average high49°
Average low34°
Average precipitation0.17 in
Chance of precipitation32%
Record high68° (1970)
Record low11° (1964)
Tue, 0147° / 33°0.11
47 °
Royal Heights, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.11 in
Chance of precipitation27%
Record high70° (1970)
Record low16° (1985)
Wed, 0248° / 33°0.08
48 °
Royal Heights, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.08 in
Chance of precipitation20%
Record high72° (2012)
Record low11° (1985)
Thu, 0347° / 33°0.11
47 °
Royal Heights, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.11 in
Chance of precipitation33%
Record high73° (1998)
Record low13° (2006)
Fri, 0446° / 32°0.08
46 °
Royal Heights, Friday, 4 December
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.08 in
Chance of precipitation27%
Record high71° (1998)
Record low4° (2006)
Sat, 0547° / 31°0.09
47 °
Royal Heights, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high47°
Average low31°
Average precipitation0.09 in
Chance of precipitation27%
Record high72° (1998)
Record low11° (2025)
Sun, 0644° / 31°0.06
44 °
Royal Heights, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.06 in
Chance of precipitation37%
Record high71° (1998)
Record low6° (1977)
Mon, 0744° / 30°0.09
44 °
Royal Heights, Monday, 7 December
Climate normal for this date — 60-year average.
Average high44°
Average low30°
Average precipitation0.09 in
Chance of precipitation23%
Record high68° (1980)
Record low-3° (1977)
Tue, 0844° / 31°0.08
44 °
Royal Heights, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.08 in
Chance of precipitation33%
Record high68° (1991)
Record low13° (2006)
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 Royal Heights, 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 Royal Heights, 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.