Monthly outlook for Mound City, MO: average high 99.1°, average low 72.4°. That is 7.9° above the climate normal for August. Precipitation is expected on 10 days (about 1.2 inches), against a normal of 4 days and 1.7 inches. The warmest day looks like 20 August (118.2°), the coolest 14 August (65.2°).
99.1°/72.4°
Average high / low
+7.9°
Above normal
10 / 4
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
92.3°
84.9°
+4.1°
19 August – 28 August
110.5°
85.1°
+14.1°
29 August – 7 September
at normal
83.1°
—
August records over 66 years
102.6°17 August 1983All-time high
50.2°28 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Fortescue (7 mi).
Mon, 1096° / 74°0.03
96 °
Mound City, Monday, 10 August
Light rain. High 96°, low 74°.
Pressure29.83 inHg
Wind5.8 mph SW
Humidity35%
Visibility6.2 mi
Dew point59°
Tue, 11111° / 70°0.18
111 °
Mound City, Tuesday, 11 August
Rain. High 111°, low 70°.
Pressure29.74 inHg
Wind16.1 mph SW
Humidity26%
Visibility6.2 mi
Dew point60°
Wed, 1295° / 69°0.04
95 °
Mound City, Wednesday, 12 August
Light rain. High 95°, low 69°.
Pressure29.80 inHg
Wind6 mph NE
Humidity44%
Visibility6.2 mi
Dew point65°
Thu, 1383° / 68°0.18
83 °
Mound City, Thursday, 13 August
Rain. High 83°, low 68°.
Pressure29.85 inHg
Wind23.2 mph E
Humidity70%
Visibility—
Dew point69°
Fri, 1475° / 65°0.11
75 °
Mound City, Friday, 14 August
Light rain. High 75°, low 65°.
Pressure30.00 inHg
Wind20.1 mph E
Humidity85%
Visibility—
Dew point66°
Sat, 1580° / 65°0.09
80 °
Mound City, Saturday, 15 August
Light rain. High 80°, low 65°.
Pressure30.09 inHg
Wind9.9 mph E
Humidity87%
Visibility—
Dew point67°
Sun, 1692° / 67°0.15
92 °
Mound City, Sunday, 16 August
Light rain. High 92°, low 67°.
Pressure30.09 inHg
Wind9.8 mph NE
Humidity51%
Visibility—
Dew point64°
Mon, 1787° / 68°0.06
87 °
Mound City, Monday, 17 August
Light rain. High 87°, low 68°.
Pressure30.09 inHg
Wind9 mph SE
Humidity81%
Visibility—
Dew point68°
Tue, 18107° / 70°0
107 °
Mound City, Tuesday, 18 August
Overcast. High 107°, low 70°.
Pressure29.80 inHg
Wind10.9 mph SE
Humidity28%
Visibility—
Dew point57°
Wed, 19117° / 80°0
117 °
Mound City, Wednesday, 19 August
Clear. High 117°, low 80°.
Pressure29.74 inHg
Wind17 mph SW
Humidity14%
Visibility—
Dew point48°
Thu, 20118° / 84°0
118 °
Mound City, Thursday, 20 August
Partly cloudy. High 118°, low 84°.
Pressure29.74 inHg
Wind18.1 mph N
Humidity12%
Visibility—
Dew point44°
Fri, 21104° / 77°0
104 °
Mound City, Friday, 21 August
Overcast. High 104°, low 77°.
Pressure29.85 inHg
Wind14.1 mph E
Humidity34%
Visibility—
Dew point61°
Sat, 22116° / 79°0
116 °
Mound City, Saturday, 22 August
Mostly clear. High 116°, low 79°.
Pressure29.71 inHg
Wind23.2 mph SW
Humidity15%
Visibility—
Dew point51°
Sun, 23108° / 73°0.26
108 °
Mound City, Sunday, 23 August
Rain. High 108°, low 73°.
Pressure29.80 inHg
Wind21.4 mph SE
Humidity25%
Visibility—
Dew point56°
Mon, 24100° / 71°0.06
100 °
Mound City, Monday, 24 August
Light rain. High 100°, low 71°.
Pressure29.88 inHg
Wind13.7 mph S
Humidity37%
Visibility—
Dew point61°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2586° / 67°0.16
86 °
Mound City, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high86°
Average low67°
Average precipitation0.16 in
Chance of precipitation27%
Record high101° (2003)
Record low55° (2025)
Wed, 2686° / 68°0.17
86 °
Mound City, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high86°
Average low68°
Average precipitation0.17 in
Chance of precipitation38%
Record high99° (2003)
Record low55° (2025)
Thu, 2785° / 68°0.08
85 °
Mound City, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high85°
Average low68°
Average precipitation0.08 in
Chance of precipitation28%
Record high98° (1984)
Record low53° (1967)
Fri, 2885° / 67°0.15
85 °
Mound City, Friday, 28 August
Climate normal for this date — 60-year average.
Average high85°
Average low67°
Average precipitation0.15 in
Chance of precipitation27%
Record high101° (1984)
Record low50° (1986)
Sat, 2985° / 67°0.09
85 °
Mound City, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high85°
Average low67°
Average precipitation0.09 in
Chance of precipitation28%
Record high102° (1984)
Record low53° (1988)
Sun, 3084° / 67°0.13
84 °
Mound City, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.13 in
Chance of precipitation35%
Record high99° (2013)
Record low52° (2009)
Mon, 3184° / 66°0.15
84 °
Mound City, Monday, 31 August
Climate normal for this date — 60-year average.
Average high84°
Average low66°
Average precipitation0.15 in
Chance of precipitation33%
Record high97° (2000)
Record low52° (2009)
Tue, 0183° / 66°0.12
83 °
Mound City, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.12 in
Chance of precipitation27%
Record high100° (2011)
Record low52° (1967)
Wed, 0283° / 66°0.09
83 °
Mound City, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.09 in
Chance of precipitation30%
Record high96° (2000)
Record low53° (1974)
Thu, 0383° / 66°0.09
83 °
Mound City, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.09 in
Chance of precipitation22%
Record high93° (1990)
Record low44° (1974)
Fri, 0482° / 65°0.11
82 °
Mound City, Friday, 4 September
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.11 in
Chance of precipitation23%
Record high96° (2012)
Record low45° (1974)
Sat, 0583° / 65°0.1
83 °
Mound City, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high83°
Average low65°
Average precipitation0.1 in
Chance of precipitation18%
Record high95° (1990)
Record low46° (1962)
Sun, 0683° / 65°0.08
83 °
Mound City, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high83°
Average low65°
Average precipitation0.08 in
Chance of precipitation17%
Record high98° (1990)
Record low50° (2025)
Mon, 0782° / 64°0.16
82 °
Mound City, Monday, 7 September
Climate normal for this date — 60-year average.
Average high82°
Average low64°
Average precipitation0.16 in
Chance of precipitation33%
Record high98° (2013)
Record low51° (2014)
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 Mound City, 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 Mound City, 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.