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As of 18:03 CDT

Weather in Shelby, IA

76°Current weather

Shelby, Saturday, 8 August, 18:03

Overcast. Feels like 78°. High 80°, low 62°.

Pressure29.94 inHg
Wind8.5 mph SE
Humidity80%
Visibility6.2 mi
Dew point69°
Sun, 0995° / 73°0Partly cloudy
95 °Partly cloudy

Shelby, Sunday, 9 August

Partly cloudy. High 95°, low 73°.

Pressure29.74 inHg
Wind10.4 mph SW
Humidity46%
Visibility6.2 mi
Dew point65°
Mon, 1091° / 71°0.02Light rain
91 °Light rain

Shelby, Monday, 10 August

Light rain. High 91°, low 71°.

Pressure29.83 inHg
Wind13.2 mph SE
Humidity50%
Visibility6.2 mi
Dew point64°
Tue, 1199° / 68°0Overcast
99 °Overcast

Shelby, Tuesday, 11 August

Overcast. High 99°, low 68°.

Pressure29.77 inHg
Wind3.8 mph NW
Humidity41%
Visibility6.2 mi
Dew point63°
Wed, 1291° / 69°0.06Light rain
91 °Light rain

Shelby, Wednesday, 12 August

Light rain. High 91°, low 69°.

Pressure29.83 inHg
Wind12.2 mph SE
Humidity55%
Visibility6.2 mi
Dew point69°
Thu, 1383° / 65°0.28Rain
83 °Rain

Shelby, Thursday, 13 August

Rain. High 83°, low 65°.

Pressure29.94 inHg
Wind13.8 mph NE
Humidity73%
Visibility—
Dew point65°
Fri, 1479° / 57°0Overcast
79 °Overcast

Shelby, Friday, 14 August

Overcast. High 79°, low 57°.

Pressure30.18 inHg
Wind10 mph SE
Humidity36%
Visibility—
Dew point46°
Sat, 1579° / 57°0.02Light rain
79 °Light rain

Shelby, Saturday, 15 August

Light rain. High 79°, low 57°.

Pressure30.15 inHg
Wind14.3 mph SE
Humidity57%
Visibility—
Dew point59°
Sun, 1687° / 65°0Overcast
87 °Overcast

Shelby, Sunday, 16 August

Overcast. High 87°, low 65°.

Pressure30.00 inHg
Wind11 mph SE
Humidity67%
Visibility—
Dew point67°
Mon, 17100° / 70°0.11Light rain
100 °Light rain

Shelby, Monday, 17 August

Light rain. High 100°, low 70°.

Pressure29.94 inHg
Wind7.3 mph SE
Humidity45%
Visibility—
Dew point66°
Tue, 1891° / 65°0.01Light rain
91 °Light rain

Shelby, Tuesday, 18 August

Light rain. High 91°, low 65°.

Pressure29.97 inHg
Wind12.1 mph SW
Humidity46%
Visibility—
Dew point62°
Wed, 1995° / 69°0.22Rain
95 °Rain

Shelby, Wednesday, 19 August

Rain. High 95°, low 69°.

Pressure29.83 inHg
Wind19.1 mph E
Humidity40%
Visibility—
Dew point63°
Thu, 2085° / 64°0.11Light rain
85 °Light rain

Shelby, Thursday, 20 August

Light rain. High 85°, low 64°.

Pressure30.00 inHg
Wind13.1 mph E
Humidity67%
Visibility—
Dew point61°
Fri, 2188° / 63°0Mostly clear
88 °Mostly clear

Shelby, Friday, 21 August

Mostly clear. High 88°, low 63°.

Pressure29.94 inHg
Wind12.2 mph SE
Humidity36%
Visibility—
Dew point53°
Sat, 2287° / 66°0.01Light rain
87 °Light rain

Shelby, Saturday, 22 August

Light rain. High 87°, low 66°.

Pressure29.91 inHg
Wind19.6 mph NE
Humidity45%
Visibility—
Dew point60°
Sun, 2377° / 52°0Mostly clear
77 °Mostly clear

Shelby, Sunday, 23 August

Mostly clear. High 77°, low 52°.

Pressure30.18 inHg
Wind13.4 mph E
Humidity36%
Visibility—
Dew point42°

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 Shelby, 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 Shelby, 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.