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As of 18:29 CDT

Weather in Irwin, IA

76°Current weather

Irwin, Saturday, 8 August, 18:29

Overcast. Feels like 77°. High 79°, low 60°.

Pressure29.91 inHg
Wind11.8 mph S
Humidity77%
Visibility6.2 mi
Dew point68°
Sun, 0993° / 72°0Overcast
93 °Overcast

Irwin, Sunday, 9 August

Overcast. High 93°, low 72°.

Pressure29.74 inHg
Wind10.2 mph SW
Humidity38%
Visibility6.2 mi
Dew point62°
Mon, 1094° / 69°0.01Light rain
94 °Light rain

Irwin, Monday, 10 August

Light rain. High 94°, low 69°.

Pressure29.80 inHg
Wind11.9 mph SE
Humidity35%
Visibility6.2 mi
Dew point60°
Tue, 11104° / 69°0Light rain
104 °Light rain

Irwin, Tuesday, 11 August

Light rain. High 104°, low 69°.

Pressure29.74 inHg
Wind5.7 mph NW
Humidity35%
Visibility6.2 mi
Dew point61°
Wed, 1293° / 73°0.04Light rain
93 °Light rain

Irwin, Wednesday, 12 August

Light rain. High 93°, low 73°.

Pressure29.83 inHg
Wind14 mph SE
Humidity50%
Visibility6.2 mi
Dew point68°
Thu, 1386° / 66°0.18Rain
86 °Rain

Irwin, Thursday, 13 August

Rain. High 86°, low 66°.

Pressure29.94 inHg
Wind15.5 mph E
Humidity58%
Visibility—
Dew point61°
Fri, 1483° / 57°0Overcast
83 °Overcast

Irwin, Friday, 14 August

Overcast. High 83°, low 57°.

Pressure30.18 inHg
Wind11.3 mph S
Humidity27%
Visibility—
Dew point41°
Sat, 1580° / 58°0Light rain
80 °Light rain

Irwin, Saturday, 15 August

Light rain. High 80°, low 58°.

Pressure30.15 inHg
Wind15.5 mph S
Humidity49%
Visibility—
Dew point56°
Sun, 1690° / 66°0Overcast
90 °Overcast

Irwin, Sunday, 16 August

Overcast. High 90°, low 66°.

Pressure30.00 inHg
Wind12.3 mph S
Humidity57%
Visibility—
Dew point66°
Mon, 17100° / 71°0.02Light rain
100 °Light rain

Irwin, Monday, 17 August

Light rain. High 100°, low 71°.

Pressure29.94 inHg
Wind11.1 mph N
Humidity41%
Visibility—
Dew point65°
Tue, 1895° / 67°0Overcast
95 °Overcast

Irwin, Tuesday, 18 August

Overcast. High 95°, low 67°.

Pressure29.97 inHg
Wind15.3 mph S
Humidity34%
Visibility—
Dew point57°
Wed, 19101° / 69°0.65Rain
101 °Rain

Irwin, Wednesday, 19 August

Rain. High 101°, low 69°.

Pressure29.83 inHg
Wind18.3 mph E
Humidity34%
Visibility—
Dew point61°
Thu, 2085° / 64°0.11Light rain
85 °Light rain

Irwin, Thursday, 20 August

Light rain. High 85°, low 64°.

Pressure29.97 inHg
Wind13.7 mph NE
Humidity54%
Visibility—
Dew point59°
Fri, 2190° / 63°0Partly cloudy
90 °Partly cloudy

Irwin, Friday, 21 August

Partly cloudy. High 90°, low 63°.

Pressure29.94 inHg
Wind11.9 mph S
Humidity34%
Visibility—
Dew point53°
Sat, 2282° / 64°0.04Light rain
82 °Light rain

Irwin, Saturday, 22 August

Light rain. High 82°, low 64°.

Pressure29.94 inHg
Wind15.3 mph NE
Humidity55%
Visibility—
Dew point62°
Sun, 2378° / 52°0Clear
78 °Clear

Irwin, Sunday, 23 August

Clear. High 78°, low 52°.

Pressure30.18 inHg
Wind13.3 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 Irwin, 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 Irwin, 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.