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As of 17:21 CDT

Weather in Helena, IA

80°Current weather

Helena, Saturday, 8 August, 17:21

Clear. Feels like 83°. High 81°, low 60°.

Pressure29.97 inHg
Wind4.3 mph SE
Humidity65%
Visibility6.2 mi
Dew point67°
Sun, 0990° / 68°0.02Light rain
90 °Light rain

Helena, Sunday, 9 August

Light rain. High 90°, low 68°.

Pressure29.80 inHg
Wind12.5 mph S
Humidity62%
Visibility6.2 mi
Dew point70°
Mon, 1085° / 71°0.02Light rain
85 °Light rain

Helena, Monday, 10 August

Light rain. High 85°, low 71°.

Pressure29.85 inHg
Wind1.5 mph SW
Humidity60%
Visibility6.2 mi
Dew point68°
Tue, 1190° / 72°0Overcast
90 °Overcast

Helena, Tuesday, 11 August

Overcast. High 90°, low 72°.

Pressure29.74 inHg
Wind7 mph W
Humidity53%
Visibility6.2 mi
Dew point69°
Wed, 1286° / 71°0.11Light rain
86 °Light rain

Helena, Wednesday, 12 August

Light rain. High 86°, low 71°.

Pressure29.88 inHg
Wind3.1 mph S
Humidity71%
Visibility6.2 mi
Dew point68°
Thu, 1378° / 63°0.12Light rain
78 °Light rain

Helena, Thursday, 13 August

Light rain. High 78°, low 63°.

Pressure29.94 inHg
Wind12.6 mph NE
Humidity71%
Visibility—
Dew point63°
Fri, 1478° / 56°0Clear
78 °Clear

Helena, Friday, 14 August

Clear. High 78°, low 56°.

Pressure30.18 inHg
Wind7.5 mph SE
Humidity42%
Visibility—
Dew point49°
Sat, 1579° / 57°0Overcast
79 °Overcast

Helena, Saturday, 15 August

Overcast. High 79°, low 57°.

Pressure30.24 inHg
Wind11.2 mph S
Humidity52%
Visibility—
Dew point55°
Sun, 1679° / 64°0Overcast
79 °Overcast

Helena, Sunday, 16 August

Overcast. High 79°, low 64°.

Pressure30.09 inHg
Wind11.8 mph S
Humidity66%
Visibility—
Dew point65°
Mon, 1789° / 68°0Overcast
89 °Overcast

Helena, Monday, 17 August

Overcast. High 89°, low 68°.

Pressure29.94 inHg
Wind10.1 mph N
Humidity62%
Visibility—
Dew point69°
Tue, 1889° / 69°0Overcast
89 °Overcast

Helena, Tuesday, 18 August

Overcast. High 89°, low 69°.

Pressure30.00 inHg
Wind9.9 mph SE
Humidity58%
Visibility—
Dew point67°
Wed, 1990° / 70°0.2Light rain
90 °Light rain

Helena, Wednesday, 19 August

Light rain. High 90°, low 70°.

Pressure29.85 inHg
Wind15.7 mph NE
Humidity50%
Visibility—
Dew point67°
Thu, 2082° / 64°0.08Light rain
82 °Light rain

Helena, Thursday, 20 August

Light rain. High 82°, low 64°.

Pressure29.94 inHg
Wind10 mph NE
Humidity56%
Visibility—
Dew point61°
Fri, 2185° / 63°0Clear
85 °Clear

Helena, Friday, 21 August

Clear. High 85°, low 63°.

Pressure29.97 inHg
Wind7.9 mph S
Humidity44%
Visibility—
Dew point56°
Sat, 2274° / 61°0.08Light rain
74 °Light rain

Helena, Saturday, 22 August

Light rain. High 74°, low 61°.

Pressure29.97 inHg
Wind17.3 mph NE
Humidity74%
Visibility—
Dew point64°
Sun, 2373° / 45°0Clear
73 °Clear

Helena, Sunday, 23 August

Clear. High 73°, low 45°.

Pressure30.21 inHg
Wind11.2 mph E
Humidity38%
Visibility—
Dew point40°

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 Helena, 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 Helena, 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.