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As of 14:29 CDT

Weather in Union, IA

78°Current weather

Union, Saturday, 8 August, 14:29

Clear. Feels like 78°. High 79°, low 59°.

Pressure30.09 inHg
Wind1 mph E
Humidity55%
Visibility6.2 mi
Dew point61°
Sun, 0989° / 69°0.11Rain
89 °Rain

Union, Sunday, 9 August

Rain. High 89°, low 69°.

Pressure29.80 inHg
Wind10.2 mph S
Humidity67%
Visibility6.2 mi
Dew point71°
Mon, 1084° / 71°0Overcast
84 °Overcast

Union, Monday, 10 August

Overcast. High 84°, low 71°.

Pressure29.85 inHg
Wind2.2 mph SE
Humidity73%
Visibility6.2 mi
Dew point70°
Tue, 1188° / 69°0.03Light rain
88 °Light rain

Union, Tuesday, 11 August

Light rain. High 88°, low 69°.

Pressure29.77 inHg
Wind4.1 mph W
Humidity66%
Visibility6.2 mi
Dew point71°
Wed, 1286° / 71°0.04Light rain
86 °Light rain

Union, Wednesday, 12 August

Light rain. High 86°, low 71°.

Pressure29.85 inHg
Wind5.3 mph SE
Humidity63%
Visibility6.2 mi
Dew point68°
Thu, 1378° / 62°0.04Light rain
78 °Light rain

Union, Thursday, 13 August

Light rain. High 78°, low 62°.

Pressure29.94 inHg
Wind13.8 mph NE
Humidity63%
Visibility—
Dew point61°
Fri, 1477° / 55°0Clear
77 °Clear

Union, Friday, 14 August

Clear. High 77°, low 55°.

Pressure30.21 inHg
Wind7.6 mph SE
Humidity45%
Visibility—
Dew point51°
Sat, 1579° / 57°0Overcast
79 °Overcast

Union, Saturday, 15 August

Overcast. High 79°, low 57°.

Pressure30.24 inHg
Wind11.6 mph S
Humidity53%
Visibility—
Dew point56°
Sun, 1680° / 67°0Overcast
80 °Overcast

Union, Sunday, 16 August

Overcast. High 80°, low 67°.

Pressure30.06 inHg
Wind11.1 mph S
Humidity67%
Visibility—
Dew point66°
Mon, 1788° / 69°0Overcast
88 °Overcast

Union, Monday, 17 August

Overcast. High 88°, low 69°.

Pressure29.94 inHg
Wind10.6 mph N
Humidity64%
Visibility—
Dew point70°
Tue, 1889° / 68°0Overcast
89 °Overcast

Union, Tuesday, 18 August

Overcast. High 89°, low 68°.

Pressure30.00 inHg
Wind8.2 mph S
Humidity59%
Visibility—
Dew point67°
Wed, 1988° / 68°0.07Light rain
88 °Light rain

Union, Wednesday, 19 August

Light rain. High 88°, low 68°.

Pressure29.85 inHg
Wind16.1 mph NE
Humidity52%
Visibility—
Dew point66°
Thu, 2083° / 63°0.02Light rain
83 °Light rain

Union, Thursday, 20 August

Light rain. High 83°, low 63°.

Pressure29.94 inHg
Wind10.6 mph N
Humidity54%
Visibility—
Dew point60°
Fri, 2186° / 63°0Clear
86 °Clear

Union, Friday, 21 August

Clear. High 86°, low 63°.

Pressure29.97 inHg
Wind9.1 mph S
Humidity44%
Visibility—
Dew point57°
Sat, 2271° / 61°0.04Light rain
71 °Light rain

Union, Saturday, 22 August

Light rain. High 71°, low 61°.

Pressure30.00 inHg
Wind15.9 mph NE
Humidity75%
Visibility—
Dew point62°
Sun, 2373° / 45°0Clear
73 °Clear

Union, Sunday, 23 August

Clear. High 73°, low 45°.

Pressure30.21 inHg
Wind10.9 mph E
Humidity38%
Visibility—
Dew point39°

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 Union, 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 Union, 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.