Monthly outlook for Black Jack, MO: average high 88.4°, average low 71.1°. That is 1.4° above the climate normal for August. Precipitation is expected on 4 days (about 2.5 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 11 August (103.2°), the coolest 15 August (59.9°).
88.4°/71.1°
Average high / low
+1.4°
Above normal
4 / 5
Wet days / normal
2.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
90.5°
85.8°
+2.6°
18 August – 27 August
85°
86°
-0.5°
28 August – 6 September
at normal
83.9°
—
August records over 66 years
102.7°15 August 2007All-time high
49.5°29 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Country Club Hills (5 mi).
Sun, 0998° / 75°0
98 °
Black Jack, Sunday, 9 August
Overcast. High 98°, low 75°.
Pressure29.94 inHg
Wind12.2 mph S
Humidity48%
Visibility6.2 mi
Dew point70°
Mon, 10103° / 79°0
103 °
Black Jack, Monday, 10 August
Clear. High 103°, low 79°.
Pressure29.94 inHg
Wind11.7 mph SW
Humidity40%
Visibility6.2 mi
Dew point68°
Tue, 11103° / 81°0.01
103 °
Black Jack, Tuesday, 11 August
Light rain. High 103°, low 81°.
Pressure29.88 inHg
Wind3.9 mph W
Humidity42%
Visibility6.2 mi
Dew point67°
Wed, 1293° / 80°0.01
93 °
Black Jack, Wednesday, 12 August
Light rain. High 93°, low 80°.
Pressure29.85 inHg
Wind9.8 mph W
Humidity48%
Visibility6.2 mi
Dew point67°
Thu, 1383° / 71°0.49
83 °
Black Jack, Thursday, 13 August
Rain. High 83°, low 71°.
Pressure29.85 inHg
Wind6.5 mph SE
Humidity68%
Visibility—
Dew point70°
Fri, 1478° / 64°0.01
78 °
Black Jack, Friday, 14 August
Light rain. High 78°, low 64°.
Pressure30.15 inHg
Wind10 mph NE
Humidity45%
Visibility—
Dew point52°
Sat, 1580° / 60°0
80 °
Black Jack, Saturday, 15 August
Overcast. High 80°, low 60°.
Pressure30.27 inHg
Wind8.9 mph E
Humidity40%
Visibility—
Dew point49°
Sun, 1680° / 65°0.07
80 °
Black Jack, Sunday, 16 August
Light rain. High 80°, low 65°.
Pressure30.18 inHg
Wind10.8 mph S
Humidity67%
Visibility—
Dew point62°
Mon, 1796° / 72°0.27
96 °
Black Jack, Monday, 17 August
Rain. High 96°, low 72°.
Pressure29.91 inHg
Wind13 mph S
Humidity46%
Visibility—
Dew point67°
Tue, 1888° / 75°0
88 °
Black Jack, Tuesday, 18 August
Overcast. High 88°, low 75°.
Pressure29.97 inHg
Wind8.5 mph NE
Humidity58%
Visibility—
Dew point69°
Wed, 1996° / 74°0
96 °
Black Jack, Wednesday, 19 August
Overcast. High 96°, low 74°.
Pressure29.88 inHg
Wind7.5 mph E
Humidity49%
Visibility—
Dew point68°
Thu, 2086° / 74°1.54
86 °
Black Jack, Thursday, 20 August
Heavy rain. High 86°, low 74°.
Pressure29.88 inHg
Wind8.5 mph NW
Humidity63%
Visibility—
Dew point70°
Fri, 2182° / 70°0.04
82 °
Black Jack, Friday, 21 August
Light rain. High 82°, low 70°.
Pressure29.94 inHg
Wind9.1 mph NE
Humidity69%
Visibility—
Dew point67°
Sat, 2286° / 68°0
86 °
Black Jack, Saturday, 22 August
Overcast. High 86°, low 68°.
Pressure29.94 inHg
Wind6.2 mph NE
Humidity48%
Visibility—
Dew point60°
Sun, 2372° / 62°0.03
72 °
Black Jack, Sunday, 23 August
Light rain. High 72°, low 62°.
Pressure30.15 inHg
Wind11.4 mph NE
Humidity64%
Visibility—
Dew point55°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2486° / 68°0.09
86 °
Black Jack, Monday, 24 August
Climate normal for this date — 60-year average.
Average high86°
Average low68°
Average precipitation0.09 in
Chance of precipitation30%
Record high99° (2023)
Record low57° (2015)
Tue, 2587° / 69°0.07
87 °
Black Jack, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high87°
Average low69°
Average precipitation0.07 in
Chance of precipitation25%
Record high98° (2023)
Record low56° (2015)
Wed, 2686° / 69°0.14
86 °
Black Jack, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high86°
Average low69°
Average precipitation0.14 in
Chance of precipitation33%
Record high98° (1983)
Record low57° (2015)
Thu, 2786° / 69°0.13
86 °
Black Jack, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high86°
Average low69°
Average precipitation0.13 in
Chance of precipitation28%
Record high98° (1983)
Record low56° (2015)
Fri, 2886° / 69°0.08
86 °
Black Jack, Friday, 28 August
Climate normal for this date — 60-year average.
Average high86°
Average low69°
Average precipitation0.08 in
Chance of precipitation27%
Record high97° (1990)
Record low56° (1967)
Sat, 2985° / 68°0.07
85 °
Black Jack, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high85°
Average low68°
Average precipitation0.07 in
Chance of precipitation27%
Record high97° (1984)
Record low49° (1986)
Sun, 3084° / 68°0.13
84 °
Black Jack, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high84°
Average low68°
Average precipitation0.13 in
Chance of precipitation28%
Record high97° (2013)
Record low52° (1986)
Mon, 3184° / 68°0.11
84 °
Black Jack, Monday, 31 August
Climate normal for this date — 60-year average.
Average high84°
Average low68°
Average precipitation0.11 in
Chance of precipitation32%
Record high101° (2013)
Record low56° (1967)
Tue, 0184° / 68°0.11
84 °
Black Jack, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high84°
Average low68°
Average precipitation0.11 in
Chance of precipitation32%
Record high99° (2011)
Record low52° (1967)
Wed, 0284° / 67°0.12
84 °
Black Jack, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.12 in
Chance of precipitation33%
Record high98° (2011)
Record low53° (1974)
Thu, 0383° / 67°0.09
83 °
Black Jack, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.09 in
Chance of precipitation25%
Record high96° (2011)
Record low51° (1974)
Fri, 0483° / 66°0.12
83 °
Black Jack, Friday, 4 September
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.12 in
Chance of precipitation28%
Record high97° (1960)
Record low51° (1974)
Sat, 0583° / 65°0.04
83 °
Black Jack, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high83°
Average low65°
Average precipitation0.04 in
Chance of precipitation15%
Record high97° (1998)
Record low51° (1974)
Sun, 0683° / 65°0.05
83 °
Black Jack, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high83°
Average low65°
Average precipitation0.05 in
Chance of precipitation22%
Record high98° (1990)
Record low52° (1988)
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 Black Jack, MO 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 Black Jack, MO 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.