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As of 15:31 CDT

Weather in Defiance, IA

77°Current weather

Defiance, Saturday, 8 August, 15:31

Overcast. Feels like 78°. High 79°, low 61°.

Pressure29.94 inHg
Wind14.6 mph SE
Humidity70%
Visibility6.2 mi
Dew point67°
Sun, 0994° / 72°0Overcast
94 °Overcast

Defiance, Sunday, 9 August

Overcast. High 94°, low 72°.

Pressure29.74 inHg
Wind9.7 mph SW
Humidity36%
Visibility6.2 mi
Dew point61°
Mon, 1095° / 70°0.02Light rain
95 °Light rain

Defiance, Monday, 10 August

Light rain. High 95°, low 70°.

Pressure29.77 inHg
Wind11.9 mph SE
Humidity34%
Visibility6.2 mi
Dew point60°
Tue, 11104° / 68°0.01Light rain
104 °Light rain

Defiance, Tuesday, 11 August

Light rain. High 104°, low 68°.

Pressure29.74 inHg
Wind6.3 mph N
Humidity35%
Visibility6.2 mi
Dew point60°
Wed, 1293° / 70°0.04Light rain
93 °Light rain

Defiance, Wednesday, 12 August

Light rain. High 93°, low 70°.

Pressure29.83 inHg
Wind14.2 mph SE
Humidity49%
Visibility6.2 mi
Dew point68°
Thu, 1386° / 66°0.18Rain
86 °Rain

Defiance, Thursday, 13 August

Rain. High 86°, low 66°.

Pressure29.94 inHg
Wind15.5 mph E
Humidity54%
Visibility—
Dew point60°
Fri, 1483° / 57°0Overcast
83 °Overcast

Defiance, Friday, 14 August

Overcast. High 83°, low 57°.

Pressure30.18 inHg
Wind11.9 mph SE
Humidity26%
Visibility—
Dew point40°
Sat, 1581° / 58°0Overcast
81 °Overcast

Defiance, Saturday, 15 August

Overcast. High 81°, low 58°.

Pressure30.15 inHg
Wind16.1 mph S
Humidity48%
Visibility—
Dew point56°
Sun, 1692° / 66°0Overcast
92 °Overcast

Defiance, Sunday, 16 August

Overcast. High 92°, low 66°.

Pressure30.00 inHg
Wind13 mph S
Humidity55%
Visibility—
Dew point66°
Mon, 17100° / 71°0.03Light rain
100 °Light rain

Defiance, Monday, 17 August

Light rain. High 100°, low 71°.

Pressure29.94 inHg
Wind11.4 mph N
Humidity40%
Visibility—
Dew point64°
Tue, 1897° / 66°0Overcast
97 °Overcast

Defiance, Tuesday, 18 August

Overcast. High 97°, low 66°.

Pressure29.97 inHg
Wind15.1 mph S
Humidity34%
Visibility—
Dew point57°
Wed, 19102° / 69°0.64Rain
102 °Rain

Defiance, Wednesday, 19 August

Rain. High 102°, low 69°.

Pressure29.83 inHg
Wind17.7 mph E
Humidity34%
Visibility—
Dew point62°
Thu, 2085° / 64°0.11Light rain
85 °Light rain

Defiance, Thursday, 20 August

Light rain. High 85°, low 64°.

Pressure29.97 inHg
Wind13.6 mph E
Humidity56%
Visibility—
Dew point60°
Fri, 2190° / 63°0Partly cloudy
90 °Partly cloudy

Defiance, Friday, 21 August

Partly cloudy. High 90°, low 63°.

Pressure29.94 inHg
Wind12 mph S
Humidity34%
Visibility—
Dew point53°
Sat, 2282° / 65°0.04Light rain
82 °Light rain

Defiance, Saturday, 22 August

Light rain. High 82°, low 65°.

Pressure29.94 inHg
Wind15.3 mph NE
Humidity55%
Visibility—
Dew point62°
Sun, 2379° / 52°0Clear
79 °Clear

Defiance, Sunday, 23 August

Clear. High 79°, low 52°.

Pressure30.18 inHg
Wind13.2 mph E
Humidity27%
Visibility—
Dew point35°

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 Defiance, 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 Defiance, 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.