Monthly outlook for Jamestown, CO: average high 53.3°, average low 34.2°. That is 5.9° above the climate normal for October. Precipitation is expected on 3 days (about 0.5 inches), against a normal of 4 days and 1.0 inches. The warmest day looks like 21 October (62°), the coolest 27 October (25.1°).
53.3°/34.2°
Average high / low
+5.9°
Above normal
3 / 4
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
19 October – 28 October
53.5°
44.9°
+4.7°
29 October – 7 November
53°
39.1°
+7.7°
8 November – 17 November
at normal
35.8°
—
October records over 66 years
67.5°5 October 1997All-time high
-15.3°30 October 1993All-time low
Climate normals and records are computed from the nearest reference point — Ward (7 mi).
Tue, 2060° / 34°0.06
60 °
Jamestown, Tuesday, 20 October
Light rain. High 60°, low 34°.
Pressure30.09 inHg
Wind1.5 mph SE
Humidity42%
Visibility5.4 mi
Dew point34°
Wed, 2162° / 38°0
62 °
Jamestown, Wednesday, 21 October
Clear. High 62°, low 38°.
Pressure30.21 inHg
Wind7.7 mph SE
Humidity42%
Visibility6.2 mi
Dew point34°
Thu, 2259° / 39°0.02
59 °
Jamestown, Thursday, 22 October
Light rain. High 59°, low 39°.
Pressure30.09 inHg
Wind5.2 mph SE
Humidity42%
Visibility6.2 mi
Dew point37°
Fri, 2362° / 42°0.01
62 °
Jamestown, Friday, 23 October
Light rain. High 62°, low 42°.
Pressure29.77 inHg
Wind2.7 mph SW
Humidity30%
Visibility6.2 mi
Dew point30°
Sat, 2445° / 36°0.17
45 °
Jamestown, Saturday, 24 October
Light rain. High 45°, low 36°.
Pressure30.15 inHg
Wind8.6 mph SE
Humidity64%
Visibility—
Dew point33°
Sun, 2546° / 35°0.18
46 °
Jamestown, Sunday, 25 October
Light rain. High 46°, low 35°.
Pressure30.24 inHg
Wind7.7 mph E
Humidity73%
Visibility—
Dew point32°
Mon, 2654° / 35°0
54 °
Jamestown, Monday, 26 October
Clear. High 54°, low 35°.
Pressure30.09 inHg
Wind8.9 mph E
Humidity19%
Visibility—
Dew point10°
Tue, 2737° / 25°0
37 °
Jamestown, Tuesday, 27 October
Light snow. High 37°, low 25°.
Pressure30.45 inHg
Wind9.9 mph E
Humidity58%
Visibility—
Dew point20°
Wed, 2853° / 25°0
53 °
Jamestown, Wednesday, 28 October
Overcast. High 53°, low 25°.
Pressure30.12 inHg
Wind8.7 mph W
Humidity29%
Visibility—
Dew point16°
Thu, 2956° / 37°0
56 °
Jamestown, Thursday, 29 October
Partly cloudy. High 56°, low 37°.
Pressure29.94 inHg
Wind9.7 mph W
Humidity24%
Visibility—
Dew point16°
Fri, 3054° / 36°0
54 °
Jamestown, Friday, 30 October
Overcast. High 54°, low 36°.
Pressure29.85 inHg
Wind10.2 mph W
Humidity30%
Visibility—
Dew point21°
Sat, 3154° / 37°0.02
54 °
Jamestown, Saturday, 31 October
Light rain. High 54°, low 37°.
Pressure29.85 inHg
Wind8.9 mph W
Humidity29%
Visibility—
Dew point21°
Sun, 0147° / 32°0.03
47 °
Jamestown, Sunday, 1 November
Light snow. High 47°, low 32°.
Pressure30.09 inHg
Wind10.8 mph W
Humidity44%
Visibility—
Dew point25°
Mon, 0251° / 30°0
51 °
Jamestown, Monday, 2 November
Clear. High 51°, low 30°.
Pressure30.21 inHg
Wind10.9 mph W
Humidity25%
Visibility—
Dew point13°
Tue, 0355° / 34°0
55 °
Jamestown, Tuesday, 3 November
Overcast. High 55°, low 34°.
Pressure29.97 inHg
Wind10.8 mph W
Humidity16%
Visibility—
Dew point6°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0439° / 19°0.04
39 °
Jamestown, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high39°
Average low19°
Average precipitation0.04 in
Chance of precipitation20%
Record high57° (1983)
Record low-9° (1970)
Thu, 0539° / 19°0.04
39 °
Jamestown, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high39°
Average low19°
Average precipitation0.04 in
Chance of precipitation25%
Record high57° (1975)
Record low-5° (1961)
Fri, 0639° / 19°0.04
39 °
Jamestown, Friday, 6 November
Climate normal for this date — 60-year average.
Average high39°
Average low19°
Average precipitation0.04 in
Chance of precipitation20%
Record high58° (2010)
Record low-5° (1961)
Sat, 0740° / 19°0.02
40 °
Jamestown, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high40°
Average low19°
Average precipitation0.02 in
Chance of precipitation15%
Record high55° (2012)
Record low-3° (2000)
Sun, 0838° / 19°0.06
38 °
Jamestown, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high38°
Average low19°
Average precipitation0.06 in
Chance of precipitation30%
Record high55° (1978)
Record low-8° (1993)
Mon, 0938° / 18°0.09
38 °
Jamestown, Monday, 9 November
Climate normal for this date — 60-year average.
Average high38°
Average low18°
Average precipitation0.09 in
Chance of precipitation30%
Record high56° (2016)
Record low-1° (1993)
Tue, 1037° / 17°0.05
37 °
Jamestown, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high37°
Average low17°
Average precipitation0.05 in
Chance of precipitation30%
Record high56° (1980)
Record low-6° (2000)
Wed, 1135° / 16°0.06
35 °
Jamestown, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high35°
Average low16°
Average precipitation0.06 in
Chance of precipitation27%
Record high55° (1980)
Record low0° (2014)
Thu, 1236° / 16°0.05
36 °
Jamestown, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high36°
Average low16°
Average precipitation0.05 in
Chance of precipitation30%
Record high56° (1999)
Record low-10° (2014)
Fri, 1336° / 17°0.05
36 °
Jamestown, Friday, 13 November
Climate normal for this date — 60-year average.
Average high36°
Average low17°
Average precipitation0.05 in
Chance of precipitation27%
Record high56° (1999)
Record low-16° (2014)
Sat, 1435° / 16°0.06
35 °
Jamestown, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high35°
Average low16°
Average precipitation0.06 in
Chance of precipitation33%
Record high55° (1999)
Record low-12° (1961)
Sun, 1535° / 15°0.04
35 °
Jamestown, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high35°
Average low15°
Average precipitation0.04 in
Chance of precipitation20%
Record high57° (1999)
Record low-25° (1997)
Mon, 1635° / 15°0.03
35 °
Jamestown, Monday, 16 November
Climate normal for this date — 60-year average.
Average high35°
Average low15°
Average precipitation0.03 in
Chance of precipitation13%
Record high56° (2016)
Record low-11° (2014)
Tue, 1734° / 14°0.06
34 °
Jamestown, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high34°
Average low14°
Average precipitation0.06 in
Chance of precipitation28%
Record high54° (1981)
Record low-10° (1980)
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.