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As of 14:24 CDT

Weather in Sumner, IA

80°Current weather

Sumner, Saturday, 8 August, 14:24

Clear. Feels like 80°. High 80°, low 58°.

Pressure30.06 inHg
Wind2.2 mph NW
Humidity62%
Visibility6.2 mi
Dew point65°
Sun, 0982° / 65°0.28Rain
82 °Rain

Sumner, Sunday, 9 August

Rain. High 82°, low 65°.

Pressure29.85 inHg
Wind10.2 mph SE
Humidity82%
Visibility6.2 mi
Dew point71°
Mon, 1083° / 71°0.04Light rain
83 °Light rain

Sumner, Monday, 10 August

Light rain. High 83°, low 71°.

Pressure29.85 inHg
Wind6.6 mph E
Humidity89%
Visibility6.2 mi
Dew point74°
Tue, 1186° / 68°0Partly cloudy
86 °Partly cloudy

Sumner, Tuesday, 11 August

Partly cloudy. High 86°, low 68°.

Pressure29.77 inHg
Wind3.9 mph SE
Humidity71%
Visibility6.2 mi
Dew point72°
Wed, 1284° / 69°0.02Light rain
84 °Light rain

Sumner, Wednesday, 12 August

Light rain. High 84°, low 69°.

Pressure29.88 inHg
Wind6 mph SE
Humidity77%
Visibility6.2 mi
Dew point73°
Thu, 1374° / 61°0.24Rain
74 °Rain

Sumner, Thursday, 13 August

Rain. High 74°, low 61°.

Pressure29.97 inHg
Wind10.5 mph NE
Humidity67%
Visibility—
Dew point60°
Fri, 1475° / 54°0Clear
75 °Clear

Sumner, Friday, 14 August

Clear. High 75°, low 54°.

Pressure30.21 inHg
Wind6.8 mph SE
Humidity58%
Visibility—
Dew point55°
Sat, 1575° / 55°0Overcast
75 °Overcast

Sumner, Saturday, 15 August

Overcast. High 75°, low 55°.

Pressure30.24 inHg
Wind11 mph S
Humidity67%
Visibility—
Dew point59°
Sun, 1678° / 62°0Overcast
78 °Overcast

Sumner, Sunday, 16 August

Overcast. High 78°, low 62°.

Pressure30.09 inHg
Wind11.8 mph S
Humidity76%
Visibility—
Dew point63°
Mon, 1781° / 68°0.04Light rain
81 °Light rain

Sumner, Monday, 17 August

Light rain. High 81°, low 68°.

Pressure29.97 inHg
Wind6.1 mph N
Humidity79%
Visibility—
Dew point72°
Tue, 1883° / 67°0.01Light rain
83 °Light rain

Sumner, Tuesday, 18 August

Light rain. High 83°, low 67°.

Pressure30.03 inHg
Wind11 mph SE
Humidity68%
Visibility—
Dew point68°
Wed, 1981° / 67°0.27Rain
81 °Rain

Sumner, Wednesday, 19 August

Rain. High 81°, low 67°.

Pressure29.88 inHg
Wind9.6 mph S
Humidity76%
Visibility—
Dew point71°
Thu, 2078° / 63°0.08Light rain
78 °Light rain

Sumner, Thursday, 20 August

Light rain. High 78°, low 63°.

Pressure29.97 inHg
Wind9.8 mph NE
Humidity68%
Visibility—
Dew point63°
Fri, 2182° / 63°0.02Light rain
82 °Light rain

Sumner, Friday, 21 August

Light rain. High 82°, low 63°.

Pressure29.97 inHg
Wind9.1 mph S
Humidity59%
Visibility—
Dew point61°
Sat, 2268° / 55°0.1Light rain
68 °Light rain

Sumner, Saturday, 22 August

Light rain. High 68°, low 55°.

Pressure30.03 inHg
Wind14.5 mph NE
Humidity79%
Visibility—
Dew point58°
Sun, 2366° / 43°0Clear
66 °Clear

Sumner, Sunday, 23 August

Clear. High 66°, low 43°.

Pressure30.24 inHg
Wind9 mph E
Humidity58%
Visibility—
Dew point46°

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 Sumner, 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 Sumner, 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.