Monthly outlook for Jamestown, CO: average high 51.6°, average low 33.9°. That is 3° above the climate normal for October. Precipitation is expected on 4 days (about 3.3 inches), against a normal of 4 days and 0.9 inches. The warmest day looks like 12 October (70.7°), the coolest 16 October (16.4°).
51.6°/33.9°
Average high / low
+3°
Above normal
4 / 4
Wet days / normal
3.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
52.5°
47.3°
+2.9°
22 October – 31 October
50.2°
42.7°
+4.1°
1 November – 10 November
at normal
38.4°
—
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, 1355° / 45°0.7
55 °
Jamestown, Tuesday, 13 October
Rain. High 55°, low 45°.
Pressure29.88 inHg
Wind5.7 mph SE
Humidity72%
Visibility4.3 mi
Dew point42°
Wed, 1448° / 35°0.65
48 °
Jamestown, Wednesday, 14 October
Rain. High 48°, low 35°.
Pressure30.12 inHg
Wind3.6 mph E
Humidity96%
Visibility0.8 mi
Dew point37°
Thu, 1535° / 30°1.81
35 °
Jamestown, Thursday, 15 October
Snow. High 35°, low 30°.
Pressure30.47 inHg
Wind8.4 mph N
Humidity95%
Visibility0.4 mi
Dew point31°
Fri, 1641° / 16°0.02
41 °
Jamestown, Friday, 16 October
Light snow. High 41°, low 16°.
Pressure30.65 inHg
Wind2.5 mph SE
Humidity56%
Visibility6.2 mi
Dew point11°
Sat, 1751° / 24°0
51 °
Jamestown, Saturday, 17 October
Overcast. High 51°, low 24°.
Pressure30.12 inHg
Wind4.2 mph W
Humidity42%
Visibility—
Dew point26°
Sun, 1854° / 34°0
54 °
Jamestown, Sunday, 18 October
Overcast. High 54°, low 34°.
Pressure29.91 inHg
Wind11.3 mph W
Humidity32%
Visibility—
Dew point22°
Mon, 1952° / 37°0
52 °
Jamestown, Monday, 19 October
Clear. High 52°, low 37°.
Pressure30.09 inHg
Wind10.2 mph W
Humidity37%
Visibility—
Dew point24°
Tue, 2057° / 37°0
57 °
Jamestown, Tuesday, 20 October
Clear. High 57°, low 37°.
Pressure29.85 inHg
Wind8.7 mph W
Humidity32%
Visibility—
Dew point24°
Wed, 2161° / 41°0
61 °
Jamestown, Wednesday, 21 October
Overcast. High 61°, low 41°.
Pressure29.68 inHg
Wind10.9 mph S
Humidity34%
Visibility—
Dew point25°
Thu, 2248° / 36°0.02
48 °
Jamestown, Thursday, 22 October
Light rain. High 48°, low 36°.
Pressure29.97 inHg
Wind8.2 mph W
Humidity65%
Visibility—
Dew point34°
Fri, 2351° / 32°0.04
51 °
Jamestown, Friday, 23 October
Light rain. High 51°, low 32°.
Pressure29.68 inHg
Wind29.7 mph W
Humidity41%
Visibility—
Dew point27°
Sat, 2444° / 31°0.02
44 °
Jamestown, Saturday, 24 October
Snow. High 44°, low 31°.
Pressure30.03 inHg
Wind33.4 mph W
Humidity44%
Visibility—
Dew point19°
Sun, 2545° / 29°0
45 °
Jamestown, Sunday, 25 October
Clear. High 45°, low 29°.
Pressure30.47 inHg
Wind10.3 mph W
Humidity32%
Visibility—
Dew point14°
Mon, 2656° / 30°0
56 °
Jamestown, Monday, 26 October
Mostly clear. High 56°, low 30°.
Pressure30.33 inHg
Wind10.3 mph W
Humidity12%
Visibility—
Dew point0°
Tue, 2757° / 37°0
57 °
Jamestown, Tuesday, 27 October
Clear. High 57°, low 37°.
Pressure30.27 inHg
Wind8 mph W
Humidity22%
Visibility—
Dew point15°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2843° / 22°0.06
43 °
Jamestown, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high43°
Average low22°
Average precipitation0.06 in
Chance of precipitation20%
Record high57° (2024)
Record low0° (1976)
Thu, 2941° / 22°0.07
41 °
Jamestown, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high41°
Average low22°
Average precipitation0.07 in
Chance of precipitation37%
Record high60° (1968)
Record low-7° (2019)
Fri, 3039° / 20°0.06
39 °
Jamestown, Friday, 30 October
Climate normal for this date — 60-year average.
Average high39°
Average low20°
Average precipitation0.06 in
Chance of precipitation32%
Record high57° (2016)
Record low-15° (1993)
Sat, 3139° / 20°0.06
39 °
Jamestown, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high39°
Average low20°
Average precipitation0.06 in
Chance of precipitation33%
Record high57° (1999)
Record low-5° (1991)
Sun, 0138° / 20°0.08
38 °
Jamestown, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high38°
Average low20°
Average precipitation0.08 in
Chance of precipitation35%
Record high54° (2014)
Record low-5° (1979)
Mon, 0238° / 18°0.09
38 °
Jamestown, Monday, 2 November
Climate normal for this date — 60-year average.
Average high38°
Average low18°
Average precipitation0.09 in
Chance of precipitation32%
Record high55° (2008)
Record low-6° (2004)
Tue, 0338° / 18°0.06
38 °
Jamestown, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high38°
Average low18°
Average precipitation0.06 in
Chance of precipitation27%
Record high55° (2020)
Record low-11° (1991)
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)
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.