As of 21:44 CDT

Weather in Charleston, MO

72°Current weather

Charleston, Saturday, 8 August, 21:44

Clear. Feels like 73°. High 88°, low 72°.

Pressure30.03 inHg
Wind6.5 mph S
Humidity95%
Visibility6.2 mi
Dew point70°

Monthly outlook for Charleston, MO: average high 93.8°, average low 71.5°. That is 4° above the climate normal for August. Precipitation is expected on 9 days (about 0.9 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 22 August (106.9°), the coolest 21 August (63°).

93.8°/71.5°
Average high / low
+4°
Above normal
9 / 5
Wet days / normal
0.9 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 August – 17 August93.8°86.5°+4°
18 August – 27 August93.8°87°+3.8°
28 August – 6 Septemberat normal85°

August records over 66 years

102.2°16 August 2007All-time high
54.5°27 August 2025All-time low

Climate normals and records are computed from the nearest reference point — East Prairie (10 mi).

Sun, 0994° / 72°0Clear
94 °Clear

Charleston, Sunday, 9 August

Clear. High 94°, low 72°.

Pressure30.03 inHg
Wind10.5 mph SW
Humidity49%
Visibility6.2 mi
Dew point69°
Mon, 1097° / 72°0Clear
97 °Clear

Charleston, Monday, 10 August

Clear. High 97°, low 72°.

Pressure30.03 inHg
Wind14.1 mph SW
Humidity44%
Visibility6.2 mi
Dew point69°
Tue, 11100° / 78°0Mostly clear
100 °Mostly clear

Charleston, Tuesday, 11 August

Mostly clear. High 100°, low 78°.

Pressure29.94 inHg
Wind16.2 mph SW
Humidity40%
Visibility6.2 mi
Dew point69°
Wed, 1296° / 74°0.13Light rain
96 °Light rain

Charleston, Wednesday, 12 August

Light rain. High 96°, low 74°.

Pressure29.85 inHg
Wind10.6 mph SW
Humidity38%
Visibility6.2 mi
Dew point67°
Thu, 1391° / 73°0.12Light rain
91 °Light rain

Charleston, Thursday, 13 August

Light rain. High 91°, low 73°.

Pressure29.94 inHg
Wind13.9 mph SE
Humidity56%
Visibility
Dew point68°
Fri, 1494° / 73°0.18Light rain
94 °Light rain

Charleston, Friday, 14 August

Light rain. High 94°, low 73°.

Pressure29.97 inHg
Wind13.8 mph NE
Humidity46%
Visibility
Dew point65°
Sat, 1582° / 69°0.09Light rain
82 °Light rain

Charleston, Saturday, 15 August

Light rain. High 82°, low 69°.

Pressure30.18 inHg
Wind13.4 mph SE
Humidity79%
Visibility
Dew point70°
Sun, 16104° / 71°0.06Light rain
104 °Light rain

Charleston, Sunday, 16 August

Light rain. High 104°, low 71°.

Pressure30.00 inHg
Wind12 mph NW
Humidity35%
Visibility
Dew point64°
Mon, 1792° / 75°0Overcast
92 °Overcast

Charleston, Monday, 17 August

Overcast. High 92°, low 75°.

Pressure30.00 inHg
Wind6.7 mph E
Humidity58%
Visibility
Dew point71°
Tue, 1898° / 73°0.08Light rain
98 °Light rain

Charleston, Tuesday, 18 August

Light rain. High 98°, low 73°.

Pressure29.97 inHg
Wind13.4 mph N
Humidity37%
Visibility
Dew point64°
Wed, 19101° / 70°0Overcast
101 °Overcast

Charleston, Wednesday, 19 August

Overcast. High 101°, low 70°.

Pressure29.88 inHg
Wind9.7 mph E
Humidity37%
Visibility
Dew point64°
Thu, 2086° / 67°0Clear
86 °Clear

Charleston, Thursday, 20 August

Clear. High 86°, low 67°.

Pressure29.97 inHg
Wind14.2 mph NE
Humidity34%
Visibility
Dew point51°
Fri, 2184° / 63°0.1Light rain
84 °Light rain

Charleston, Friday, 21 August

Light rain. High 84°, low 63°.

Pressure30.00 inHg
Wind11.5 mph NE
Humidity51%
Visibility
Dew point58°
Sat, 22107° / 65°0.06Light rain
107 °Light rain

Charleston, Saturday, 22 August

Light rain. High 107°, low 65°.

Pressure29.83 inHg
Wind17 mph SW
Humidity27%
Visibility
Dew point57°
Sun, 2387° / 76°0.03Light rain
87 °Light rain

Charleston, Sunday, 23 August

Light rain. High 87°, low 76°.

Pressure30.00 inHg
Wind7.9 mph SE
Humidity60%
Visibility
Dew point67°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2487° / 71°0.05Climate normal
87 °Climate normal

Charleston, Monday, 24 August

Climate normal for this date — 60-year average.

Average high87°
Average low71°
Average precipitation0.05 in
Chance of precipitation13%
Record high98° (2007)
Record low60° (1966)
Tue, 2587° / 71°0.04Climate normal
87 °Climate normal

Charleston, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high87°
Average low71°
Average precipitation0.04 in
Chance of precipitation18%
Record high98° (2023)
Record low59° (2025)
Wed, 2687° / 71°0.04Climate normal
87 °Climate normal

Charleston, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high87°
Average low71°
Average precipitation0.04 in
Chance of precipitation20%
Record high98° (1983)
Record low56° (2025)
Thu, 2787° / 71°0.11Climate normal
87 °Climate normal

Charleston, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high87°
Average low71°
Average precipitation0.11 in
Chance of precipitation20%
Record high96° (1983)
Record low55° (2025)
Fri, 2887° / 71°0.09Climate normal
87 °Climate normal

Charleston, Friday, 28 August

Climate normal for this date — 60-year average.

Average high87°
Average low71°
Average precipitation0.09 in
Chance of precipitation33%
Record high96° (1983)
Record low59° (2025)
Sat, 2986° / 71°0.12Climate normal
86 °Climate normal

Charleston, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high86°
Average low71°
Average precipitation0.12 in
Chance of precipitation37%
Record high99° (2000)
Record low55° (1986)
Sun, 3085° / 70°0.11Climate normal
85 °Climate normal

Charleston, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high85°
Average low70°
Average precipitation0.11 in
Chance of precipitation25%
Record high95° (2012)
Record low57° (1986)
Mon, 3185° / 70°0.07Climate normal
85 °Climate normal

Charleston, Monday, 31 August

Climate normal for this date — 60-year average.

Average high85°
Average low70°
Average precipitation0.07 in
Chance of precipitation28%
Record high94° (2011)
Record low60° (2009)
Tue, 0185° / 70°0.09Climate normal
85 °Climate normal

Charleston, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high85°
Average low70°
Average precipitation0.09 in
Chance of precipitation30%
Record high96° (2011)
Record low56° (1967)
Wed, 0285° / 70°0.12Climate normal
85 °Climate normal

Charleston, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high85°
Average low70°
Average precipitation0.12 in
Chance of precipitation25%
Record high95° (2011)
Record low57° (2017)
Thu, 0384° / 69°0.1Climate normal
84 °Climate normal

Charleston, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high84°
Average low69°
Average precipitation0.1 in
Chance of precipitation35%
Record high97° (2011)
Record low58° (1974)
Fri, 0484° / 69°0.08Climate normal
84 °Climate normal

Charleston, Friday, 4 September

Climate normal for this date — 60-year average.

Average high84°
Average low69°
Average precipitation0.08 in
Chance of precipitation25%
Record high95° (1999)
Record low55° (1974)
Sat, 0584° / 68°0.09Climate normal
84 °Climate normal

Charleston, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high84°
Average low68°
Average precipitation0.09 in
Chance of precipitation32%
Record high95° (1990)
Record low55° (1997)
Sun, 0684° / 67°0.05Climate normal
84 °Climate normal

Charleston, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high84°
Average low67°
Average precipitation0.05 in
Chance of precipitation18%
Record high96° (1990)
Record low55° (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 Charleston, 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 Charleston, 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.