Weather in Helena, IA
Helena, Thursday, 15 October, 04:05
Overcast. Feels like 58°. High 61°, low 51°.
Monthly outlook for Helena, IA: average high 56.9°, average low 43.2°. That is 1° below the climate normal for October. Precipitation is expected on 2 days (about 0.6 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 21 October (68.6°), the coolest 30 October (30°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 15 October – 24 October | 61.6° | 60.1° | +0.8° |
| 25 October – 3 November | 49.2° | 55.5° | -3.5° |
| 4 November – 13 November | at normal | 50° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Malcom (15 mi).
0.02
Helena, Friday, 16 October
Light rain. High 51°, low 42°.
0
Helena, Saturday, 17 October
Clear. High 56°, low 34°.
0Helena, Sunday, 18 October
Clear. High 62°, low 41°.
0Helena, Monday, 19 October
Overcast. High 62°, low 42°.
0Helena, Tuesday, 20 October
Clear. High 66°, low 50°.
0Helena, Wednesday, 21 October
Clear. High 69°, low 49°.
0.15Helena, Thursday, 22 October
Light rain. High 60°, low 55°.
0Helena, Friday, 23 October
Overcast. High 68°, low 57°.
0
Helena, Saturday, 24 October
Partly cloudy. High 62°, low 51°.
0Helena, Sunday, 25 October
Clear. High 51°, low 40°.
0Helena, Monday, 26 October
Overcast. High 49°, low 35°.
0Helena, Tuesday, 27 October
Clear. High 47°, low 33°.
0Helena, Wednesday, 28 October
Overcast. High 57°, low 41°.
0Helena, Thursday, 29 October
Overcast. High 50°, low 40°.
0Helena, Friday, 30 October
Clear. High 41°, low 30°.
0.14
Helena, Saturday, 31 October
Climate normal for this date — 60-year average.
0.2Helena, Sunday, 1 November
Climate normal for this date — 60-year average.
0.09Helena, Monday, 2 November
Climate normal for this date — 60-year average.
0.07Helena, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.12Helena, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.07Helena, Thursday, 5 November
Climate normal for this date — 60-year average.
0.06
Helena, 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.
0.09Helena, 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.
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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