Weather in Firma, MO
Firma, Friday, 9 October, 13:05
Clear. Feels like 84°. High 86°, low 55°.
Monthly outlook for Firma, MO: average high 73.4°, average low 53°. That is 3.7° above the climate normal for October. Precipitation is expected on 3 days (about 1.8 inches), against a normal of 4 days and 1.7 inches. The warmest day looks like 12 October (91°), the coolest 24 October (35.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 October – 18 October | 77.2° | 67.8° | +5.2° |
| 19 October – 28 October | 66.9° | 63.6° | +1.9° |
| 29 October – 7 November | at normal | 59.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — O'Fallon (8 mi).
0
Firma, Saturday, 10 October
Overcast. High 78°, low 57°.
0Firma, Sunday, 11 October
Clear. High 85°, low 56°.
0
Firma, Monday, 12 October
Mostly clear. High 91°, low 69°.
0Firma, Tuesday, 13 October
Overcast. High 90°, low 75°.
0.31
Firma, Wednesday, 14 October
Rain. High 74°, low 69°.
1.39Firma, Thursday, 15 October
Heavy rain. High 78°, low 58°.
0.02Firma, Friday, 16 October
Light rain. High 76°, low 49°.
0Firma, Saturday, 17 October
Clear. High 52°, low 40°.
0Firma, Sunday, 18 October
Clear. High 62°, low 36°.
0Firma, Monday, 19 October
Overcast. High 69°, low 44°.
0Firma, Tuesday, 20 October
Mostly clear. High 74°, low 50°.
0Firma, Wednesday, 21 October
Overcast. High 77°, low 56°.
0.09Firma, Thursday, 22 October
Light rain. High 73°, low 57°.
0Firma, Friday, 23 October
Clear. High 58°, low 43°.
0Firma, Saturday, 24 October
Clear. High 52°, low 35°.
0.13
Firma, Sunday, 25 October
Climate normal for this date — 60-year average.
0.13
Firma, Monday, 26 October
Climate normal for this date — 60-year average.
0.09Firma, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.05Firma, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.13Firma, Thursday, 29 October
Climate normal for this date — 60-year average.
0.12Firma, Friday, 30 October
Climate normal for this date — 60-year average.
0.16Firma, Saturday, 31 October
Climate normal for this date — 60-year average.
0.19Firma, Sunday, 1 November
Climate normal for this date — 60-year average.
0.09Firma, Monday, 2 November
Climate normal for this date — 60-year average.
0.12Firma, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.15Firma, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.17Firma, Thursday, 5 November
Climate normal for this date — 60-year average.
0.09Firma, Friday, 6 November
Climate normal for this date — 60-year average.
0.07Firma, Saturday, 7 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 Firma, 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 Firma, 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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