Weather in Smyrna, IA
Smyrna, Tuesday, 20 October, 04:52
Clear. Feels like 40°. High 70°, low 44°.
Monthly outlook for Smyrna, IA: average high 60°, average low 42.8°. That is 1.3° above the climate normal for October. Precipitation is expected on 4 days (about 0.7 inches), against a normal of 4 days and 1.7 inches. The warmest day looks like 25 October (74.9°), the coolest 28 October (25.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 20 October – 29 October | 63.5° | 59.4° | +2.3° |
| 30 October – 8 November | 54.2° | 54° | +0.1° |
| 9 November – 18 November | at normal | 49.2° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Osceola (11 mi).
0
Smyrna, Wednesday, 21 October
Clear. High 72°, low 47°.
0Smyrna, Thursday, 22 October
Clear. High 72°, low 51°.
0
Smyrna, Friday, 23 October
Partly cloudy. High 73°, low 53°.
0Smyrna, Saturday, 24 October
Partly cloudy. High 74°, low 59°.
0.03
Smyrna, Sunday, 25 October
Light rain. High 75°, low 57°.
0.16Smyrna, Monday, 26 October
Light rain. High 60°, low 43°.
0
Smyrna, Tuesday, 27 October
Overcast. High 48°, low 32°.
0Smyrna, Wednesday, 28 October
Clear. High 45°, low 25°.
0Smyrna, Thursday, 29 October
Overcast. High 45°, low 31°.
0Smyrna, Friday, 30 October
Overcast. High 51°, low 37°.
0Smyrna, Saturday, 31 October
Clear. High 54°, low 38°.
0.23Smyrna, Sunday, 1 November
Rain. High 51°, low 41°.
0.16Smyrna, Monday, 2 November
Light rain. High 50°, low 39°.
0.14Smyrna, Tuesday, 3 November
Light rain. High 57°, low 43°.
0Smyrna, Wednesday, 4 November
Partly cloudy. High 61°, low 42°.
0.06Smyrna, Thursday, 5 November
Climate normal for this date — 60-year average.
0.06Smyrna, Friday, 6 November
Climate normal for this date — 60-year average.
0.02
Smyrna, Saturday, 7 November
Climate normal for this date — 60-year average.
0.03Smyrna, Sunday, 8 November
Climate normal for this date — 60-year average.
0.09Smyrna, Monday, 9 November
Climate normal for this date — 60-year average.
0.1Smyrna, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.08Smyrna, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06Smyrna, Thursday, 12 November
Climate normal for this date — 60-year average.
0.07Smyrna, Friday, 13 November
Climate normal for this date — 60-year average.
0.03Smyrna, Saturday, 14 November
Climate normal for this date — 60-year average.
0.06Smyrna, Sunday, 15 November
Climate normal for this date — 60-year average.
0.04Smyrna, Monday, 16 November
Climate normal for this date — 60-year average.
0.12Smyrna, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.04Smyrna, Wednesday, 18 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 Smyrna, 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 Smyrna, 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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