Weather in Shannon City, IA
Shannon City, Sunday, 9 August, 08:58
Clear. Feels like 79°. High 98°, low 73°.
Monthly outlook for Shannon City, IA: average high 88.6°, average low 66.2°. That is 3.5° above the climate normal for August. Precipitation is expected on 5 days (about 1.0 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 11 August (105°), the coolest 17 August (61.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 87° | 82.3° | +2.6° |
| 19 August – 28 August | 91.3° | 82.3° | +5° |
| 29 August – 7 September | at normal | 80.3° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Thayer (14 mi).
0.03
Shannon City, Monday, 10 August
Light rain. High 90°, low 71°.
0.15Shannon City, Tuesday, 11 August
Rain. High 105°, low 70°.
0
Shannon City, Wednesday, 12 August
Partly cloudy. High 91°, low 69°.
0.5Shannon City, Thursday, 13 August
Rain. High 77°, low 68°.
0.11Shannon City, Friday, 14 August
Light rain. High 72°, low 64°.
0.02Shannon City, Saturday, 15 August
Light rain. High 87°, low 67°.
0.1Shannon City, Sunday, 16 August
Light rain. High 82°, low 65°.
0.01Shannon City, Monday, 17 August
Light rain. High 78°, low 61°.
0.1Shannon City, Tuesday, 18 August
Light rain. High 90°, low 62°.
0Shannon City, Wednesday, 19 August
Clear. High 84°, low 66°.
0Shannon City, Thursday, 20 August
Partly cloudy. High 87°, low 63°.
0Shannon City, Friday, 21 August
Clear. High 103°, low 66°.
0Shannon City, Saturday, 22 August
Clear. High 88°, low 67°.
0Shannon City, Sunday, 23 August
Clear. High 89°, low 62°.
0
Shannon City, Monday, 24 August
Overcast. High 95°, low 66°.
0.16Shannon City, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.18
Shannon City, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.14Shannon City, Thursday, 27 August
Climate normal for this date — 60-year average.
0.13Shannon City, Friday, 28 August
Climate normal for this date — 60-year average.
0.07
Shannon City, Saturday, 29 August
Climate normal for this date — 60-year average.
0.12Shannon City, Sunday, 30 August
Climate normal for this date — 60-year average.
0.1Shannon City, Monday, 31 August
Climate normal for this date — 60-year average.
0.09Shannon City, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.09Shannon City, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.1Shannon City, Thursday, 3 September
Climate normal for this date — 60-year average.
0.09Shannon City, Friday, 4 September
Climate normal for this date — 60-year average.
0.11Shannon City, Saturday, 5 September
Climate normal for this date — 60-year average.
0.07Shannon City, Sunday, 6 September
Climate normal for this date — 60-year average.
0.19Shannon City, Monday, 7 September
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 Shannon City, 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 Shannon City, 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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