Weather in Thornton, CO
Thornton, Wednesday, 14 October, 23:58
Overcast. Feels like 40°. High 52°, low 44°.
Monthly outlook for Thornton, CO: average high 59.9°, average low 39.9°. That is 0.9° below the climate normal for October. Precipitation is expected on 4 days (about 0.8 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 17 October (74.3°), the coolest 25 October (29.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 14 October – 23 October | 64.3° | 62.9° | +0.8° |
| 24 October – 2 November | 52.4° | 56.6° | -2.4° |
| 3 November – 12 November | at normal | 53.3° | — |
October records over 66 years
0.07
Thornton, Thursday, 15 October
Light rain. High 56°, low 39°.
0
Thornton, Friday, 16 October
Clear. High 55°, low 34°.
0Thornton, Saturday, 17 October
Clear. High 74°, low 34°.
0Thornton, Sunday, 18 October
Overcast. High 70°, low 40°.
0Thornton, Monday, 19 October
Clear. High 69°, low 44°.
0Thornton, Tuesday, 20 October
Clear. High 72°, low 43°.
0Thornton, Wednesday, 21 October
Clear. High 72°, low 52°.
0.09Thornton, Thursday, 22 October
Light rain. High 62°, low 48°.
0Thornton, Friday, 23 October
Light rain. High 60°, low 46°.
0.31
Thornton, Saturday, 24 October
Snow. High 42°, low 32°.
0Thornton, Sunday, 25 October
Clear. High 48°, low 29°.
0Thornton, Monday, 26 October
Overcast. High 46°, low 35°.
0
Thornton, Tuesday, 27 October
Partly cloudy. High 53°, low 38°.
0Thornton, Wednesday, 28 October
Clear. High 66°, low 41°.
0Thornton, Thursday, 29 October
Clear. High 60°, low 41°.
0.05Thornton, Friday, 30 October
Climate normal for this date — 60-year average.
0.04Thornton, Saturday, 31 October
Climate normal for this date — 60-year average.
0.07Thornton, Sunday, 1 November
Climate normal for this date — 60-year average.
0.07Thornton, Monday, 2 November
Climate normal for this date — 60-year average.
0.05Thornton, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.03
Thornton, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.03Thornton, Thursday, 5 November
Climate normal for this date — 60-year average.
0.03Thornton, Friday, 6 November
Climate normal for this date — 60-year average.
0.02Thornton, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04Thornton, Sunday, 8 November
Climate normal for this date — 60-year average.
0.06Thornton, Monday, 9 November
Climate normal for this date — 60-year average.
0.03Thornton, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.04Thornton, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.04Thornton, Thursday, 12 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 Thornton, CO 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 Thornton, CO 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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