Monthly outlook for Mountjoy, IL: average high 58.6°, average low 48.3°. That is 2.4° above the climate normal for October. Precipitation is expected on 5 days (about 1.5 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 3 November (72.3°), the coolest 12 November (36.8°).
58.6°/48.3°
Average high / low
+2.4°
Above normal
5 / 5
Wet days / normal
1.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
30 October – 8 November
63.9°
56°
+4.4°
9 November – 18 November
49.7°
50.7°
-0.5°
19 November – 28 November
at normal
46.5°
—
October records over 66 years
89.1°7 October 2007All-time high
19.6°22 October 1976All-time low
Climate normals and records are computed from the nearest reference point — Shirley (14 mi).
Sat, 3171° / 55°0
71 °
Mountjoy, Saturday, 31 October
Overcast. High 71°, low 55°.
Pressure30.30 inHg
Wind7.1 mph SE
Humidity41%
Visibility6.2 mi
Dew point43°
Sun, 0171° / 56°0
71 °
Mountjoy, Sunday, 1 November
Overcast. High 71°, low 56°.
Pressure30.30 inHg
Wind10.2 mph S
Humidity53%
Visibility6.2 mi
Dew point53°
Mon, 0268° / 57°0
68 °
Mountjoy, Monday, 2 November
Overcast. High 68°, low 57°.
Pressure30.09 inHg
Wind12.3 mph S
Humidity69%
Visibility6.2 mi
Dew point53°
Tue, 0372° / 64°0.02
72 °
Mountjoy, Tuesday, 3 November
Light rain. High 72°, low 64°.
Pressure29.85 inHg
Wind18.3 mph S
Humidity66%
Visibility—
Dew point59°
Wed, 0465° / 57°0.65
65 °
Mountjoy, Wednesday, 4 November
Rain. High 65°, low 57°.
Pressure29.65 inHg
Wind11.3 mph S
Humidity93%
Visibility—
Dew point60°
Thu, 0562° / 56°0.03
62 °
Mountjoy, Thursday, 5 November
Light rain. High 62°, low 56°.
Pressure29.71 inHg
Wind12.8 mph N
Humidity72%
Visibility—
Dew point53°
Fri, 0655° / 49°0
55 °
Mountjoy, Friday, 6 November
Overcast. High 55°, low 49°.
Pressure29.91 inHg
Wind12.3 mph N
Humidity64%
Visibility—
Dew point43°
Sat, 0755° / 46°0
55 °
Mountjoy, Saturday, 7 November
Overcast. High 55°, low 46°.
Pressure30.12 inHg
Wind10.6 mph NE
Humidity49%
Visibility—
Dew point35°
Sun, 0851° / 40°0
51 °
Mountjoy, Sunday, 8 November
Overcast. High 51°, low 40°.
Pressure30.27 inHg
Wind14.5 mph E
Humidity36%
Visibility—
Dew point23°
Mon, 0947° / 43°0.09
47 °
Mountjoy, Monday, 9 November
Light rain. High 47°, low 43°.
Pressure30.12 inHg
Wind11.5 mph E
Humidity51%
Visibility—
Dew point29°
Tue, 1045° / 42°0.19
45 °
Mountjoy, Tuesday, 10 November
Light rain. High 45°, low 42°.
Pressure29.88 inHg
Wind15.3 mph NE
Humidity82%
Visibility—
Dew point38°
Wed, 1151° / 37°0
51 °
Mountjoy, Wednesday, 11 November
Partly cloudy. High 51°, low 37°.
Pressure30.00 inHg
Wind10.2 mph N
Humidity52%
Visibility—
Dew point31°
Thu, 1252° / 37°0
52 °
Mountjoy, Thursday, 12 November
Clear. High 52°, low 37°.
Pressure29.91 inHg
Wind10.1 mph SE
Humidity47%
Visibility—
Dew point30°
Fri, 1352° / 42°0.39
52 °
Mountjoy, Friday, 13 November
Rain. High 52°, low 42°.
Pressure29.62 inHg
Wind19.5 mph SE
Humidity84%
Visibility—
Dew point42°
Sat, 1450° / 42°0.17
50 °
Mountjoy, Saturday, 14 November
Light rain. High 50°, low 42°.
Pressure29.62 inHg
Wind10.6 mph SW
Humidity86%
Visibility—
Dew point42°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 1550° / 36°0.09
50 °
Mountjoy, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.09 in
Chance of precipitation28%
Record high71° (2025)
Record low18° (2014)
Mon, 1649° / 35°0.07
49 °
Mountjoy, Monday, 16 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.07 in
Chance of precipitation18%
Record high70° (1971)
Record low21° (1997)
Tue, 1751° / 35°0.11
51 °
Mountjoy, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high51°
Average low35°
Average precipitation0.11 in
Chance of precipitation28%
Record high73° (2016)
Record low16° (2005)
Wed, 1850° / 36°0.18
50 °
Mountjoy, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.18 in
Chance of precipitation33%
Record high69° (1999)
Record low12° (2014)
Thu, 1950° / 36°0.08
50 °
Mountjoy, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.08 in
Chance of precipitation28%
Record high69° (1979)
Record low18° (2014)
Fri, 2049° / 35°0.11
49 °
Mountjoy, Friday, 20 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.11 in
Chance of precipitation32%
Record high67° (2007)
Record low16° (2022)
Sat, 2147° / 33°0.1
47 °
Mountjoy, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.1 in
Chance of precipitation30%
Record high69° (1990)
Record low10° (1964)
Sun, 2247° / 32°0.06
47 °
Mountjoy, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.06 in
Chance of precipitation27%
Record high71° (2010)
Record low5° (2015)
Mon, 2347° / 33°0.08
47 °
Mountjoy, Monday, 23 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.08 in
Chance of precipitation27%
Record high66° (2003)
Record low12° (1970)
Tue, 2446° / 31°0.1
46 °
Mountjoy, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high46°
Average low31°
Average precipitation0.1 in
Chance of precipitation23%
Record high67° (1966)
Record low12° (1970)
Wed, 2546° / 32°0.08
46 °
Mountjoy, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.08 in
Chance of precipitation33%
Record high64° (2006)
Record low12° (1977)
Thu, 2647° / 32°0.13
47 °
Mountjoy, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.13 in
Chance of precipitation38%
Record high68° (1965)
Record low6° (1977)
Fri, 2744° / 32°0.21
44 °
Mountjoy, Friday, 27 November
Climate normal for this date — 60-year average.
Average high44°
Average low32°
Average precipitation0.21 in
Chance of precipitation48%
Record high67° (1990)
Record low10° (2018)
Sat, 2842° / 29°0.13
42 °
Mountjoy, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high42°
Average low29°
Average precipitation0.13 in
Chance of precipitation25%
Record high66° (1998)
Record low8° (2018)
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 Mountjoy, 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 Mountjoy, 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.