Weather in Helena, IL
Helena, Wednesday, 21 October, 05:42
Clear. Feels like 43°. High 74°, low 43°.
0
Helena, Thursday, 22 October
Clear. High 75°, low 48°.
0Helena, Friday, 23 October
Clear. High 71°, low 49°.
0
Helena, Saturday, 24 October
Partly cloudy. High 72°, low 50°.
0
Helena, Sunday, 25 October
Overcast. High 75°, low 50°.
0Helena, Monday, 26 October
Overcast. High 73°, low 53°.
0Helena, Tuesday, 27 October
Overcast. High 73°, low 56°.
0Helena, Wednesday, 28 October
Overcast. High 71°, low 54°.
0Helena, Thursday, 29 October
Partly cloudy. High 65°, low 43°.
0Helena, Friday, 30 October
Overcast. High 58°, low 38°.
0.01
Helena, Saturday, 31 October
Light rain. High 63°, low 41°.
1.3Helena, Sunday, 1 November
Rain. High 54°, low 50°.
0.12Helena, Monday, 2 November
Light rain. High 62°, low 55°.
0.02Helena, Tuesday, 3 November
Light rain. High 69°, low 52°.
1.74Helena, Wednesday, 4 November
Heavy rain. High 71°, low 62°.
0.18Helena, Thursday, 5 November
Light rain. High 68°, low 65°.
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, IL 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, IL 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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