Weather in Helena, IA
Helena, Wednesday, 21 October, 22:54
Overcast. Feels like 54°. High 74°, low 47°.
Monthly outlook for Helena, IA: average high 61.3°, average low 44.9°. That is 2.9° above the climate normal for October. Precipitation is expected on 4 days (about 1.2 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 22 October (75°), the coolest 29 October (35.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 21 October – 30 October | 65.2° | 57.8° | +4.1° |
| 31 October – 9 November | 54.7° | 52.6° | +1.2° |
| 10 November – 19 November | at normal | 47.6° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Malcom (15 mi).
0
Helena, Thursday, 22 October
Clear. High 75°, low 49°.
0Helena, Friday, 23 October
Overcast. High 72°, low 49°.
0.13
Helena, Saturday, 24 October
Rain. High 72°, low 55°.
0Helena, Sunday, 25 October
Overcast. High 73°, low 56°.
0Helena, Monday, 26 October
Overcast. High 72°, low 53°.
0.42Helena, Tuesday, 27 October
Rain. High 58°, low 43°.
0Helena, Wednesday, 28 October
Light rain. High 47°, low 38°.
0Helena, Thursday, 29 October
Clear. High 52°, low 36°.
0Helena, Friday, 30 October
Overcast. High 57°, low 40°.
0.04Helena, Saturday, 31 October
Light rain. High 59°, low 52°.
0.57Helena, Sunday, 1 November
Rain. High 55°, low 52°.
0
Helena, Monday, 2 November
Mostly clear. High 48°, low 37°.
0Helena, Tuesday, 3 November
Overcast. High 52°, low 36°.
0
Helena, Wednesday, 4 November
Partly cloudy. High 58°, low 41°.
0Helena, Thursday, 5 November
Partly cloudy. High 56°, low 36°.
0.06Helena, Friday, 6 November
Climate normal for this date — 60-year average.
0.02Helena, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04Helena, Sunday, 8 November
Climate normal for this date — 60-year average.
0.09
Helena, Monday, 9 November
Climate normal for this date — 60-year average.
0.09Helena, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.09Helena, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.07Helena, Thursday, 12 November
Climate normal for this date — 60-year average.
0.07Helena, Friday, 13 November
Climate normal for this date — 60-year average.
0.03Helena, Saturday, 14 November
Climate normal for this date — 60-year average.
0.06Helena, Sunday, 15 November
Climate normal for this date — 60-year average.
0.04Helena, Monday, 16 November
Climate normal for this date — 60-year average.
0.11Helena, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.06Helena, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.07Helena, Thursday, 19 November
Climate normal for this date — 60-year average.
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.
Sun and moon today
Weather history
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