Weather in Weldon Spring, MO
Weldon Spring, Wednesday, 7 October, 01:06
Clear. Feels like 58°. High 88°, low 55°.
Monthly outlook for Weldon Spring, MO: average high 78.2°, average low 54.9°. That is 6° above the climate normal for October. Precipitation is expected on 2 days (about 1.9 inches), against a normal of 4 days and 1.7 inches. The warmest day looks like 14 October (92.5°), the coolest 18 October (38.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 7 October – 16 October | 83.3° | 68.7° | +8.1° |
| 17 October – 26 October | 69.7° | 64.3° | +3° |
| 27 October – 5 November | at normal | 60.3° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — O'Fallon (6 mi).
0
Weldon Spring, Thursday, 8 October
Clear. High 82°, low 51°.
0Weldon Spring, Friday, 9 October
Clear. High 88°, low 58°.
0.06
Weldon Spring, Saturday, 10 October
Light rain. High 86°, low 62°.
0.02Weldon Spring, Sunday, 11 October
Light rain. High 75°, low 63°.
0Weldon Spring, Monday, 12 October
Clear. High 90°, low 61°.
0
Weldon Spring, Tuesday, 13 October
Partly cloudy. High 90°, low 65°.
0Weldon Spring, Wednesday, 14 October
Clear. High 92°, low 66°.
1.81Weldon Spring, Thursday, 15 October
Heavy rain. High 78°, low 55°.
0Weldon Spring, Friday, 16 October
Clear. High 66°, low 47°.
0Weldon Spring, Saturday, 17 October
Clear. High 57°, low 42°.
0Weldon Spring, Sunday, 18 October
Clear. High 62°, low 38°.
0Weldon Spring, Monday, 19 October
Clear. High 75°, low 48°.
0Weldon Spring, Tuesday, 20 October
Clear. High 75°, low 52°.
0Weldon Spring, Wednesday, 21 October
Clear. High 78°, low 55°.
0Weldon Spring, Thursday, 22 October
Clear. High 71°, low 57°.
0.09
Weldon Spring, Friday, 23 October
Climate normal for this date — 60-year average.
0.11Weldon Spring, Saturday, 24 October
Climate normal for this date — 60-year average.
0.13Weldon Spring, Sunday, 25 October
Climate normal for this date — 60-year average.
0.13Weldon Spring, Monday, 26 October
Climate normal for this date — 60-year average.
0.09Weldon Spring, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.05Weldon Spring, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.13Weldon Spring, Thursday, 29 October
Climate normal for this date — 60-year average.
0.12Weldon Spring, Friday, 30 October
Climate normal for this date — 60-year average.
0.16Weldon Spring, Saturday, 31 October
Climate normal for this date — 60-year average.
0.19Weldon Spring, Sunday, 1 November
Climate normal for this date — 60-year average.
0.09Weldon Spring, Monday, 2 November
Climate normal for this date — 60-year average.
0.12Weldon Spring, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.15Weldon Spring, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.17Weldon Spring, Thursday, 5 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 Weldon Spring, 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 Weldon Spring, 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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