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As of 18:28 CDT

Weather in Charleston, IA

82°Current weather

Charleston, Saturday, 8 August, 18:28

Clear. Feels like 85°. High 84°, low 67°.

Pressure30.00 inHg
Wind4.2 mph SE
Humidity67%
Visibility6.2 mi
Dew point70°
Sun, 0994° / 71°0Overcast
94 °Overcast

Charleston, Sunday, 9 August

Overcast. High 94°, low 71°.

Pressure29.85 inHg
Wind14 mph S
Humidity65%
Visibility6.2 mi
Dew point68°
Mon, 1094° / 73°0.01Light rain
94 °Light rain

Charleston, Monday, 10 August

Light rain. High 94°, low 73°.

Pressure29.88 inHg
Wind8.3 mph W
Humidity63%
Visibility6.2 mi
Dew point70°
Tue, 1194° / 79°0Overcast
94 °Overcast

Charleston, Tuesday, 11 August

Overcast. High 94°, low 79°.

Pressure29.77 inHg
Wind16.9 mph SW
Humidity47%
Visibility6.2 mi
Dew point67°
Wed, 1287° / 70°0.04Light rain
87 °Light rain

Charleston, Wednesday, 12 August

Light rain. High 87°, low 70°.

Pressure29.85 inHg
Wind10.8 mph E
Humidity64%
Visibility6.2 mi
Dew point71°
Thu, 1374° / 68°0.34Light rain
74 °Light rain

Charleston, Thursday, 13 August

Light rain. High 74°, low 68°.

Pressure29.88 inHg
Wind10.3 mph NE
Humidity94%
Visibility—
Dew point68°
Fri, 1478° / 59°0.01Light rain
78 °Light rain

Charleston, Friday, 14 August

Light rain. High 78°, low 59°.

Pressure30.18 inHg
Wind7.4 mph E
Humidity48%
Visibility—
Dew point53°
Sat, 1579° / 58°0Overcast
79 °Overcast

Charleston, Saturday, 15 August

Overcast. High 79°, low 58°.

Pressure30.27 inHg
Wind10.6 mph SE
Humidity49%
Visibility—
Dew point54°
Sun, 1679° / 63°0.01Light rain
79 °Light rain

Charleston, Sunday, 16 August

Light rain. High 79°, low 63°.

Pressure30.09 inHg
Wind12.9 mph S
Humidity71%
Visibility—
Dew point66°
Mon, 1790° / 68°0Overcast
90 °Overcast

Charleston, Monday, 17 August

Overcast. High 90°, low 68°.

Pressure29.91 inHg
Wind9.2 mph SE
Humidity62%
Visibility—
Dew point70°
Tue, 1889° / 72°0Overcast
89 °Overcast

Charleston, Tuesday, 18 August

Overcast. High 89°, low 72°.

Pressure29.97 inHg
Wind7.5 mph SE
Humidity59%
Visibility—
Dew point69°
Wed, 1996° / 70°0.01Light rain
96 °Light rain

Charleston, Wednesday, 19 August

Light rain. High 96°, low 70°.

Pressure29.88 inHg
Wind7.9 mph NE
Humidity43%
Visibility—
Dew point64°
Thu, 2085° / 68°0.29Rain
85 °Rain

Charleston, Thursday, 20 August

Rain. High 85°, low 68°.

Pressure29.91 inHg
Wind11.5 mph NE
Humidity56%
Visibility—
Dew point64°
Fri, 2185° / 64°0Clear
85 °Clear

Charleston, Friday, 21 August

Clear. High 85°, low 64°.

Pressure29.97 inHg
Wind9.7 mph E
Humidity45%
Visibility—
Dew point57°
Sat, 2290° / 62°0.11Light rain
90 °Light rain

Charleston, Saturday, 22 August

Light rain. High 90°, low 62°.

Pressure29.91 inHg
Wind16.2 mph NE
Humidity39%
Visibility—
Dew point57°
Sun, 2373° / 55°0Overcast
73 °Overcast

Charleston, Sunday, 23 August

Overcast. High 73°, low 55°.

Pressure30.18 inHg
Wind13.9 mph E
Humidity41%
Visibility—
Dew point44°

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, IA 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, IA 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.