Weather in Jamestown, CO
Jamestown, Sunday, 18 October, 13:02
Overcast. Feels like 63°. High 66°, low 33°.
Monthly outlook for Jamestown, CO: average high 51°, average low 32.5°. That is 4.4° above the climate normal for October. Precipitation is expected on 2 days (about 0.6 inches), against a normal of 4 days and 1.0 inches. The warmest day looks like 18 October (66.1°), the coolest 31 October (13.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 18 October – 27 October | 54.6° | 45.2° | +5.2° |
| 28 October – 6 November | 45.1° | 39.4° | +3.2° |
| 7 November – 16 November | at normal | 36.4° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Ward (7 mi).
0
Jamestown, Monday, 19 October
Clear. High 56°, low 32°.
0.02
Jamestown, Tuesday, 20 October
Light rain. High 58°, low 36°.
0
Jamestown, Wednesday, 21 October
Mostly clear. High 57°, low 37°.
0.02Jamestown, Thursday, 22 October
Light rain. High 57°, low 41°.
0.01Jamestown, Friday, 23 October
Light rain. High 54°, low 39°.
0.37Jamestown, Saturday, 24 October
Light rain. High 40°, low 36°.
0Jamestown, Sunday, 25 October
Overcast. High 52°, low 33°.
0Jamestown, Monday, 26 October
Overcast. High 50°, low 38°.
0.01Jamestown, Tuesday, 27 October
Light rain. High 55°, low 38°.
0
Jamestown, Wednesday, 28 October
Partly cloudy. High 52°, low 38°.
0Jamestown, Thursday, 29 October
Overcast. High 52°, low 34°.
0.15
Jamestown, Friday, 30 October
Snow. High 37°, low 17°.
0Jamestown, Saturday, 31 October
Clear. High 35°, low 13°.
0Jamestown, Sunday, 1 November
Mostly clear. High 48°, low 22°.
0Jamestown, Monday, 2 November
Overcast. High 46°, low 33°.
0.06Jamestown, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.04Jamestown, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.04Jamestown, Thursday, 5 November
Climate normal for this date — 60-year average.
0.04Jamestown, Friday, 6 November
Climate normal for this date — 60-year average.
0.02Jamestown, Saturday, 7 November
Climate normal for this date — 60-year average.
0.06Jamestown, Sunday, 8 November
Climate normal for this date — 60-year average.
0.09Jamestown, Monday, 9 November
Climate normal for this date — 60-year average.
0.05Jamestown, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.06Jamestown, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.05Jamestown, Thursday, 12 November
Climate normal for this date — 60-year average.
0.05Jamestown, Friday, 13 November
Climate normal for this date — 60-year average.
0.06
Jamestown, Saturday, 14 November
Climate normal for this date — 60-year average.
0.04Jamestown, Sunday, 15 November
Climate normal for this date — 60-year average.
0.03Jamestown, Monday, 16 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 Jamestown, 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 Jamestown, 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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