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As of 13:24 CDT

Weather in Decorah, IA

79°Current weather

Decorah, Saturday, 8 August, 13:24

Clear. Feels like 79°. High 79°, low 58°.

Pressure30.06 inHg
Wind4.4 mph W
Humidity61%
Visibility6.2 mi
Dew point63°
Sun, 0978° / 65°0.6Heavy rain
78 °Heavy rain

Decorah, Sunday, 9 August

Heavy rain. High 78°, low 65°.

Pressure29.85 inHg
Wind9.7 mph SE
Humidity87%
Visibility6.2 mi
Dew point69°
Mon, 1083° / 70°0.07Rain
83 °Rain

Decorah, Monday, 10 August

Rain. High 83°, low 70°.

Pressure29.85 inHg
Wind12.8 mph E
Humidity78%
Visibility6.2 mi
Dew point72°
Tue, 1184° / 67°0.05Light rain
84 °Light rain

Decorah, Tuesday, 11 August

Light rain. High 84°, low 67°.

Pressure29.77 inHg
Wind6.5 mph N
Humidity74%
Visibility6.2 mi
Dew point71°
Wed, 1283° / 66°0Clear
83 °Clear

Decorah, Wednesday, 12 August

Clear. High 83°, low 66°.

Pressure29.88 inHg
Wind5.2 mph NW
Humidity64%
Visibility6.2 mi
Dew point67°
Thu, 1370° / 58°0.1Light rain
70 °Light rain

Decorah, Thursday, 13 August

Light rain. High 70°, low 58°.

Pressure30.00 inHg
Wind14.6 mph N
Humidity51%
Visibility—
Dew point49°
Fri, 1473° / 51°0Clear
73 °Clear

Decorah, Friday, 14 August

Clear. High 73°, low 51°.

Pressure30.15 inHg
Wind8 mph NW
Humidity51%
Visibility—
Dew point49°
Sat, 1570° / 56°0Overcast
70 °Overcast

Decorah, Saturday, 15 August

Overcast. High 70°, low 56°.

Pressure30.18 inHg
Wind7.7 mph SW
Humidity69%
Visibility—
Dew point58°
Sun, 1668° / 60°0.02Light rain
68 °Light rain

Decorah, Sunday, 16 August

Light rain. High 68°, low 60°.

Pressure30.12 inHg
Wind9.8 mph SE
Humidity82%
Visibility—
Dew point61°
Mon, 1768° / 62°0.04Light rain
68 °Light rain

Decorah, Monday, 17 August

Light rain. High 68°, low 62°.

Pressure30.00 inHg
Wind8 mph SE
Humidity96%
Visibility—
Dew point63°
Tue, 1879° / 64°0.03Light rain
79 °Light rain

Decorah, Tuesday, 18 August

Light rain. High 79°, low 64°.

Pressure29.88 inHg
Wind10.4 mph W
Humidity69%
Visibility—
Dew point64°
Wed, 1971° / 58°0.02Light rain
71 °Light rain

Decorah, Wednesday, 19 August

Light rain. High 71°, low 58°.

Pressure30.12 inHg
Wind15.6 mph N
Humidity62%
Visibility—
Dew point54°
Thu, 2067° / 45°0Clear
67 °Clear

Decorah, Thursday, 20 August

Clear. High 67°, low 45°.

Pressure30.33 inHg
Wind8.2 mph N
Humidity46%
Visibility—
Dew point41°
Fri, 2170° / 48°0Mostly clear
70 °Mostly clear

Decorah, Friday, 21 August

Mostly clear. High 70°, low 48°.

Pressure30.24 inHg
Wind8.3 mph S
Humidity52%
Visibility—
Dew point47°
Sat, 2272° / 54°0Overcast
72 °Overcast

Decorah, Saturday, 22 August

Overcast. High 72°, low 54°.

Pressure30.12 inHg
Wind10.4 mph SW
Humidity54%
Visibility—
Dew point53°
Sun, 2376° / 57°0Overcast
76 °Overcast

Decorah, Sunday, 23 August

Overcast. High 76°, low 57°.

Pressure30.06 inHg
Wind11.3 mph S
Humidity55%
Visibility—
Dew point55°

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 Decorah, 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 Decorah, 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.