Weather in Portage Des Sioux, MO
Portage Des Sioux, Sunday, 9 August, 12:31
Partly cloudy. Feels like 103°. High 94°, low 72°.
Monthly outlook for Portage Des Sioux, MO: average high 93.1°, average low 70.4°. That is 5° above the climate normal for August. Precipitation is expected on 3 days (about 0.3 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 10 August (102.4°), the coolest 24 August (62.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 95.1° | 84.2° | +6.1° |
| 19 August – 28 August | 89.8° | 84.4° | +3° |
| 29 August – 7 September | at normal | 82.3° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Jerseyville (13 mi).
0.01
Portage Des Sioux, Monday, 10 August
Light rain. High 102°, low 76°.
0.01Portage Des Sioux, Tuesday, 11 August
Light rain. High 101°, low 77°.
0.04Portage Des Sioux, Wednesday, 12 August
Light rain. High 98°, low 76°.
0.08Portage Des Sioux, Thursday, 13 August
Light rain. High 95°, low 73°.
0
Portage Des Sioux, Friday, 14 August
Overcast. High 89°, low 72°.
0Portage Des Sioux, Saturday, 15 August
Partly cloudy. High 96°, low 71°.
0Portage Des Sioux, Sunday, 16 August
Partly cloudy. High 93°, low 75°.
0Portage Des Sioux, Monday, 17 August
Overcast. High 83°, low 64°.
0.13Portage Des Sioux, Tuesday, 18 August
Light rain. High 101°, low 67°.
0
Portage Des Sioux, Wednesday, 19 August
Mostly clear. High 94°, low 71°.
0
Portage Des Sioux, Thursday, 20 August
Clear. High 84°, low 64°.
0Portage Des Sioux, Friday, 21 August
Clear. High 97°, low 68°.
0Portage Des Sioux, Saturday, 22 August
Clear. High 96°, low 74°.
0Portage Des Sioux, Sunday, 23 August
Clear. High 84°, low 63°.
0Portage Des Sioux, Monday, 24 August
Clear. High 85°, low 62°.
0.06Portage Des Sioux, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.12Portage Des Sioux, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.11Portage Des Sioux, Thursday, 27 August
Climate normal for this date — 60-year average.
0.09Portage Des Sioux, Friday, 28 August
Climate normal for this date — 60-year average.
0.06Portage Des Sioux, Saturday, 29 August
Climate normal for this date — 60-year average.
0.11Portage Des Sioux, Sunday, 30 August
Climate normal for this date — 60-year average.
0.1Portage Des Sioux, Monday, 31 August
Climate normal for this date — 60-year average.
0.13Portage Des Sioux, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.13
Portage Des Sioux, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.07Portage Des Sioux, Thursday, 3 September
Climate normal for this date — 60-year average.
0.1Portage Des Sioux, Friday, 4 September
Climate normal for this date — 60-year average.
0.04Portage Des Sioux, Saturday, 5 September
Climate normal for this date — 60-year average.
0.05Portage Des Sioux, Sunday, 6 September
Climate normal for this date — 60-year average.
0.07Portage Des Sioux, 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 Portage Des Sioux, MO 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 Portage Des Sioux, MO 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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