Weather in Thornton, CO
Thornton, Sunday, 11 October, 23:13
Clear. Feels like 68°. High 81°, low 61°.
Monthly outlook for Thornton, CO: average high 64°, average low 47.2°. That is 0.7° above the climate normal for October. Precipitation is expected on 5 days (about 1.5 inches), against a normal of 3 days and 0.8 inches. The warmest day looks like 11 October (80.7°), the coolest 21 October (34.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 11 October – 20 October | 66.8° | 63.8° | +1.7° |
| 21 October – 30 October | 59.4° | 59.4° | -0° |
| 31 October – 9 November | at normal | 53.7° | — |
October records over 66 years
0
Thornton, Monday, 12 October
Clear. High 80°, low 61°.
0.07
Thornton, Tuesday, 13 October
Light rain. High 67°, low 52°.
0.28Thornton, Wednesday, 14 October
Light rain. High 52°, low 46°.
0.11Thornton, Thursday, 15 October
Light rain. High 48°, low 43°.
0Thornton, Friday, 16 October
Clear. High 55°, low 35°.
0
Thornton, Saturday, 17 October
Overcast. High 70°, low 36°.
0Thornton, Sunday, 18 October
Clear. High 73°, low 52°.
0Thornton, Monday, 19 October
Clear. High 73°, low 53°.
0.06Thornton, Tuesday, 20 October
Light rain. High 71°, low 54°.
0.93
Thornton, Wednesday, 21 October
Snow. High 49°, low 34°.
0Thornton, Thursday, 22 October
Clear. High 59°, low 38°.
0Thornton, Friday, 23 October
Overcast. High 62°, low 44°.
0Thornton, Saturday, 24 October
Overcast. High 66°, low 55°.
0
Thornton, Sunday, 25 October
Mostly clear. High 58°, low 48°.
0Thornton, Monday, 26 October
Overcast. High 62°, low 46°.
0.03
Thornton, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.06Thornton, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.07Thornton, Thursday, 29 October
Climate normal for this date — 60-year average.
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.
0.03Thornton, 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.
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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