As of 18:26 CDT

Weather in Mountjoy, IL

69°Current weather

Mountjoy, Thursday, 22 October, 18:26

Clear. Feels like 68°. High 74°, low 46°.

Pressure30.21 inHg
Wind1.1 mph N
Humidity58%
Visibility6.2 mi
Dew point53°

Monthly outlook for Mountjoy, IL: average high 64.6°, average low 48.2°. That is 3.6° above the climate normal for October. Precipitation is expected on 2 days (about 0.3 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 23 October (74.4°), the coolest 3 November (41.2°).

64.6°/48.2°
Average high / low
+3.6°
Above normal
2 / 5
Wet days / normal
0.3 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
22 October – 31 October68.6°59.5°+5°
1 November – 10 November57.8°54.9°+1.6°
11 November – 20 Novemberat normal49.7°—

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).

Fri, 2374° / 48°0Clear
74 °Clear

Mountjoy, Friday, 23 October

Clear. High 74°, low 48°.

Pressure30.30 inHg
Wind7 mph S
Humidity46%
Visibility6.2 mi
Dew point48°
Sat, 2471° / 47°0Overcast
71 °Overcast

Mountjoy, Saturday, 24 October

Overcast. High 71°, low 47°.

Pressure30.36 inHg
Wind6.8 mph S
Humidity51%
Visibility6.2 mi
Dew point49°
Sun, 2573° / 50°0Clear
73 °Clear

Mountjoy, Sunday, 25 October

Clear. High 73°, low 50°.

Pressure30.42 inHg
Wind5.3 mph S
Humidity49%
Visibility6.2 mi
Dew point49°
Mon, 2671° / 50°0Overcast
71 °Overcast

Mountjoy, Monday, 26 October

Overcast. High 71°, low 50°.

Pressure30.36 inHg
Wind2.4 mph SE
Humidity53%
Visibility6.2 mi
Dew point50°
Tue, 2769° / 51°0Overcast
69 °Overcast

Mountjoy, Tuesday, 27 October

Overcast. High 69°, low 51°.

Pressure30.27 inHg
Wind7.2 mph E
Humidity52%
Visibility—
Dew point47°
Wed, 2864° / 51°0Partly cloudy
64 °Partly cloudy

Mountjoy, Wednesday, 28 October

Partly cloudy. High 64°, low 51°.

Pressure30.15 inHg
Wind7 mph SW
Humidity56%
Visibility—
Dew point44°
Thu, 2968° / 51°0.03Light rain
68 °Light rain

Mountjoy, Thursday, 29 October

Light rain. High 68°, low 51°.

Pressure30.15 inHg
Wind6.7 mph S
Humidity52%
Visibility—
Dew point44°
Fri, 3063° / 53°0.07Light rain
63 °Light rain

Mountjoy, Friday, 30 October

Light rain. High 63°, low 53°.

Pressure29.97 inHg
Wind12.6 mph SW
Humidity80%
Visibility—
Dew point56°
Sat, 3159° / 51°0Overcast
59 °Overcast

Mountjoy, Saturday, 31 October

Overcast. High 59°, low 51°.

Pressure30.12 inHg
Wind9.4 mph NE
Humidity50%
Visibility—
Dew point38°
Sun, 0154° / 50°0.17Light rain
54 °Light rain

Mountjoy, Sunday, 1 November

Light rain. High 54°, low 50°.

Pressure30.03 inHg
Wind11.7 mph NE
Humidity78%
Visibility—
Dew point44°
Mon, 0259° / 44°0Overcast
59 °Overcast

Mountjoy, Monday, 2 November

Overcast. High 59°, low 44°.

Pressure30.18 inHg
Wind9.7 mph N
Humidity41%
Visibility—
Dew point32°
Tue, 0357° / 41°0Overcast
57 °Overcast

Mountjoy, Tuesday, 3 November

Overcast. High 57°, low 41°.

Pressure30.39 inHg
Wind6.3 mph NE
Humidity48%
Visibility—
Dew point34°
Wed, 0459° / 45°0Overcast
59 °Overcast

Mountjoy, Wednesday, 4 November

Overcast. High 59°, low 45°.

Pressure30.50 inHg
Wind6.9 mph NE
Humidity41%
Visibility—
Dew point32°
Thu, 0558° / 42°0Overcast
58 °Overcast

Mountjoy, Thursday, 5 November

Overcast. High 58°, low 42°.

Pressure30.47 inHg
Wind5.9 mph E
Humidity36%
Visibility—
Dew point28°
Fri, 0660° / 51°0Overcast
60 °Overcast

Mountjoy, Friday, 6 November

Overcast. High 60°, low 51°.

Pressure30.21 inHg
Wind6.8 mph SE
Humidity34%
Visibility—
Dew point30°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 0754° / 39°0.06Climate normal
54 °Climate normal

Mountjoy, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high54°
Average low39°
Average precipitation0.06 in
Chance of precipitation20%
Record high70° (1966)
Record low17° (1991)
Sun, 0854° / 39°0.04Climate normal
54 °Climate normal

Mountjoy, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high54°
Average low39°
Average precipitation0.04 in
Chance of precipitation17%
Record high75° (1999)
Record low10° (1991)
Mon, 0955° / 40°0.14Climate normal
55 °Climate normal

Mountjoy, Monday, 9 November

Climate normal for this date — 60-year average.

Average high55°
Average low40°
Average precipitation0.14 in
Chance of precipitation33%
Record high73° (2020)
Record low15° (1991)
Tue, 1053° / 38°0.16Climate normal
53 °Climate normal

Mountjoy, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high53°
Average low38°
Average precipitation0.16 in
Chance of precipitation30%
Record high72° (2020)
Record low17° (2018)
Wed, 1151° / 35°0.07Climate normal
51 °Climate normal

Mountjoy, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high51°
Average low35°
Average precipitation0.07 in
Chance of precipitation28%
Record high73° (1964)
Record low18° (2019)
Thu, 1249° / 34°0.07Climate normal
49 °Climate normal

Mountjoy, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high49°
Average low34°
Average precipitation0.07 in
Chance of precipitation22%
Record high72° (2010)
Record low9° (2019)
Fri, 1349° / 34°0.06Climate normal
49 °Climate normal

Mountjoy, Friday, 13 November

Climate normal for this date — 60-year average.

Average high49°
Average low34°
Average precipitation0.06 in
Chance of precipitation20%
Record high72° (1999)
Record low8° (1986)
Sat, 1451° / 35°0.07Climate normal
51 °Climate normal

Mountjoy, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high51°
Average low35°
Average precipitation0.07 in
Chance of precipitation35%
Record high73° (1971)
Record low13° (1986)
Sun, 1550° / 36°0.09Climate normal
50 °Climate normal

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°0.07Climate normal
49 °Climate normal

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°0.11Climate normal
51 °Climate normal

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°0.18Climate normal
50 °Climate normal

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°0.08Climate normal
50 °Climate normal

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°0.11Climate normal
49 °Climate normal

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)

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.