Weather in Lewis, IA
Lewis, Thursday, 15 October, 03:57
Overcast. Feels like 55°. High 56°, low 48°.
Monthly outlook for Lewis, IA: average high 58.2°, average low 44°. That is 1° below the climate normal for October. Precipitation is expected on 4 days (about 1.1 inches), against a normal of 4 days and 1.3 inches. The warmest day looks like 22 October (70.7°), the coolest 30 October (32.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 15 October – 24 October | 62.3° | 61.2° | +0.6° |
| 25 October – 3 November | 51.2° | 56.4° | -2.8° |
| 4 November – 13 November | at normal | 50.9° | — |
October records over 66 years
0Lewis, Friday, 16 October
Overcast. High 51°, low 41°.
0
Lewis, Saturday, 17 October
Clear. High 57°, low 34°.
0Lewis, Sunday, 18 October
Clear. High 62°, low 42°.
0Lewis, Monday, 19 October
Overcast. High 59°, low 47°.
0Lewis, Tuesday, 20 October
Clear. High 68°, low 48°.
0Lewis, Wednesday, 21 October
Clear. High 70°, low 51°.
0.21
Lewis, Thursday, 22 October
Rain. High 71°, low 59°.
0.05Lewis, Friday, 23 October
Light rain. High 67°, low 61°.
0.01Lewis, Saturday, 24 October
Light rain. High 61°, low 46°.
0
Lewis, Sunday, 25 October
Partly cloudy. High 51°, low 38°.
0.04Lewis, Monday, 26 October
Light rain. High 49°, low 37°.
0
Lewis, Tuesday, 27 October
Mostly clear. High 50°, low 34°.
0Lewis, Wednesday, 28 October
Overcast. High 57°, low 42°.
0Lewis, Thursday, 29 October
Overcast. High 57°, low 41°.
0Lewis, Friday, 30 October
Clear. High 43°, low 33°.
0.11Lewis, Saturday, 31 October
Climate normal for this date — 60-year average.
0.16Lewis, Sunday, 1 November
Climate normal for this date — 60-year average.
0.08Lewis, Monday, 2 November
Climate normal for this date — 60-year average.
0.09Lewis, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.07Lewis, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.05Lewis, Thursday, 5 November
Climate normal for this date — 60-year average.
0.06Lewis, Friday, 6 November
Climate normal for this date — 60-year average.
0.02Lewis, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04Lewis, Sunday, 8 November
Climate normal for this date — 60-year average.
0.13Lewis, Monday, 9 November
Climate normal for this date — 60-year average.
0.08Lewis, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.07Lewis, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.07Lewis, Thursday, 12 November
Climate normal for this date — 60-year average.
0.07Lewis, 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 Lewis, 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 Lewis, 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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