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As of 16:06 CDT

Weather in Duncan, MO

89°Current weather

Duncan, Saturday, 8 August, 16:06

Clear. Feels like 102°. High 90°, low 67°.

Pressure30.03 inHg
Wind6.4 mph E
Humidity66%
Visibility6.2 mi
Dew point77°
Sun, 0995° / 69°0Partly cloudy
95 °Partly cloudy

Duncan, Sunday, 9 August

Partly cloudy. High 95°, low 69°.

Pressure29.97 inHg
Wind14.5 mph S
Humidity39%
Visibility6.2 mi
Dew point63°
Mon, 1099° / 71°0Clear
99 °Clear

Duncan, Monday, 10 August

Clear. High 99°, low 71°.

Pressure29.97 inHg
Wind14.6 mph SW
Humidity36%
Visibility6.2 mi
Dew point64°
Tue, 11103° / 76°0Light rain
103 °Light rain

Duncan, Tuesday, 11 August

Light rain. High 103°, low 76°.

Pressure29.91 inHg
Wind18.1 mph SW
Humidity33%
Visibility6.2 mi
Dew point63°
Wed, 1297° / 75°0.06Light rain
97 °Light rain

Duncan, Wednesday, 12 August

Light rain. High 97°, low 75°.

Pressure29.88 inHg
Wind3.8 mph W
Humidity45%
Visibility6.2 mi
Dew point63°
Thu, 1390° / 71°0.13Light rain
90 °Light rain

Duncan, Thursday, 13 August

Light rain. High 90°, low 71°.

Pressure29.88 inHg
Wind17.8 mph S
Humidity54%
Visibility—
Dew point65°
Fri, 1481° / 68°0.04Light rain
81 °Light rain

Duncan, Friday, 14 August

Light rain. High 81°, low 68°.

Pressure30.09 inHg
Wind12.8 mph SE
Humidity74%
Visibility—
Dew point67°
Sat, 1585° / 63°0.06Light rain
85 °Light rain

Duncan, Saturday, 15 August

Light rain. High 85°, low 63°.

Pressure30.21 inHg
Wind13 mph SE
Humidity59%
Visibility—
Dew point61°
Sun, 1688° / 67°0.09Light rain
88 °Light rain

Duncan, Sunday, 16 August

Light rain. High 88°, low 67°.

Pressure30.12 inHg
Wind18.2 mph S
Humidity60%
Visibility—
Dew point67°
Mon, 17106° / 75°0Partly cloudy
106 °Partly cloudy

Duncan, Monday, 17 August

Partly cloudy. High 106°, low 75°.

Pressure29.91 inHg
Wind20.6 mph SW
Humidity24%
Visibility—
Dew point56°
Tue, 1895° / 71°0.48Rain
95 °Rain

Duncan, Tuesday, 18 August

Rain. High 95°, low 71°.

Pressure29.97 inHg
Wind17.4 mph S
Humidity38%
Visibility—
Dew point63°
Wed, 19104° / 69°0.03Light rain
104 °Light rain

Duncan, Wednesday, 19 August

Light rain. High 104°, low 69°.

Pressure29.85 inHg
Wind11.4 mph E
Humidity33%
Visibility—
Dew point59°
Thu, 2090° / 73°0.11Light rain
90 °Light rain

Duncan, Thursday, 20 August

Light rain. High 90°, low 73°.

Pressure29.88 inHg
Wind8.1 mph SE
Humidity46%
Visibility—
Dew point64°
Fri, 2187° / 69°0Overcast
87 °Overcast

Duncan, Friday, 21 August

Overcast. High 87°, low 69°.

Pressure29.88 inHg
Wind12.8 mph NE
Humidity54%
Visibility—
Dew point66°
Sat, 2288° / 70°0.1Light rain
88 °Light rain

Duncan, Saturday, 22 August

Light rain. High 88°, low 70°.

Pressure29.91 inHg
Wind9.4 mph NE
Humidity57%
Visibility—
Dew point65°
Sun, 2386° / 65°0Overcast
86 °Overcast

Duncan, Sunday, 23 August

Overcast. High 86°, low 65°.

Pressure30.03 inHg
Wind13.6 mph NE
Humidity46%
Visibility—
Dew point59°

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 Duncan, 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 Duncan, 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.