Monthly outlook for Chester, CO: average high 44.6°, average low 29.5°. That is 0.4° above the climate normal for October. Precipitation is expected on 6 days (about 1.1 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 23 October (57°), the coolest 3 November (19.9°).
44.6°/29.5°
Average high / low
+0.4°
Above normal
6 / 3
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
22 October – 31 October
47°
45.2°
+1°
1 November – 10 November
40.7°
41.2°
-0.3°
11 November – 20 November
at normal
37.1°
—
October records over 66 years
69.1°1 October 2015All-time high
-14.4°28 October 1970All-time low
Climate normals and records are computed from the nearest reference point — Bonanza (10 mi).
Fri, 2357° / 40°0.11
57 °
Chester, Friday, 23 October
Light rain. High 57°, low 40°.
Pressure30.00 inHg
Wind7.2 mph SW
Humidity58%
Visibility6.2 mi
Dew point33°
Sat, 2447° / 39°0.41
47 °
Chester, Saturday, 24 October
Snow. High 47°, low 39°.
Pressure30.18 inHg
Wind5.7 mph E
Humidity79%
Visibility4.0 mi
Dew point36°
Sun, 2549° / 34°0.13
49 °
Chester, Sunday, 25 October
Snow. High 49°, low 34°.
Pressure30.15 inHg
Wind4.4 mph SE
Humidity69%
Visibility6.2 mi
Dew point31°
Mon, 2645° / 32°0
45 °
Chester, Monday, 26 October
Partly cloudy. High 45°, low 32°.
Pressure30.24 inHg
Wind6.8 mph W
Humidity79%
Visibility6.2 mi
Dew point25°
Tue, 2752° / 30°0
52 °
Chester, Tuesday, 27 October
Clear. High 52°, low 30°.
Pressure30.06 inHg
Wind7.2 mph SW
Humidity56%
Visibility—
Dew point33°
Wed, 2843° / 33°0
43 °
Chester, Wednesday, 28 October
Mostly clear. High 43°, low 33°.
Pressure30.12 inHg
Wind10.8 mph W
Humidity68%
Visibility—
Dew point31°
Thu, 2945° / 31°0.02
45 °
Chester, Thursday, 29 October
Light rain. High 45°, low 31°.
Pressure30.00 inHg
Wind7.9 mph S
Humidity50%
Visibility—
Dew point24°
Fri, 3043° / 29°0.1
43 °
Chester, Friday, 30 October
Snow. High 43°, low 29°.
Pressure29.80 inHg
Wind12.4 mph W
Humidity74%
Visibility—
Dew point31°
Sat, 3137° / 24°0.02
37 °
Chester, Saturday, 31 October
Light snow. High 37°, low 24°.
Pressure29.91 inHg
Wind15.1 mph W
Humidity47%
Visibility—
Dew point16°
Sun, 0136° / 22°0
36 °
Chester, Sunday, 1 November
Overcast. High 36°, low 22°.
Pressure29.97 inHg
Wind14.3 mph W
Humidity35%
Visibility—
Dew point9°
Mon, 0233° / 21°0.06
33 °
Chester, Monday, 2 November
Light snow. High 33°, low 21°.
Pressure30.18 inHg
Wind5.1 mph NE
Humidity53%
Visibility—
Dew point16°
Tue, 0337° / 20°0
37 °
Chester, Tuesday, 3 November
Overcast. High 37°, low 20°.
Pressure30.36 inHg
Wind3.9 mph NE
Humidity48%
Visibility—
Dew point15°
Wed, 0443° / 22°0
43 °
Chester, Wednesday, 4 November
Partly cloudy. High 43°, low 22°.
Pressure30.36 inHg
Wind4.6 mph NW
Humidity19%
Visibility—
Dew point-1°
Thu, 0548° / 28°0
48 °
Chester, Thursday, 5 November
Partly cloudy. High 48°, low 28°.
Pressure30.27 inHg
Wind4.7 mph S
Humidity12%
Visibility—
Dew point-5°
Fri, 0646° / 30°0
46 °
Chester, Friday, 6 November
Overcast. High 46°, low 30°.
Pressure30.09 inHg
Wind4.2 mph W
Humidity16%
Visibility—
Dew point-1°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 0742° / 19°0.02
42 °
Chester, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high42°
Average low19°
Average precipitation0.02 in
Chance of precipitation13%
Record high56° (2006)
Record low-13° (2000)
Sun, 0841° / 19°0.04
41 °
Chester, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high41°
Average low19°
Average precipitation0.04 in
Chance of precipitation25%
Record high57° (2006)
Record low-12° (1993)
Mon, 0940° / 18°0.06
40 °
Chester, Monday, 9 November
Climate normal for this date — 60-year average.
Average high40°
Average low18°
Average precipitation0.06 in
Chance of precipitation28%
Record high55° (2016)
Record low-14° (1986)
Tue, 1039° / 17°0.02
39 °
Chester, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high39°
Average low17°
Average precipitation0.02 in
Chance of precipitation15%
Record high54° (1980)
Record low-10° (2011)
Wed, 1138° / 17°0.05
38 °
Chester, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high38°
Average low17°
Average precipitation0.05 in
Chance of precipitation20%
Record high56° (1989)
Record low-7° (1986)
Thu, 1238° / 15°0.05
38 °
Chester, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high38°
Average low15°
Average precipitation0.05 in
Chance of precipitation20%
Record high56° (1999)
Record low-16° (2000)
Fri, 1339° / 16°0.03
39 °
Chester, Friday, 13 November
Climate normal for this date — 60-year average.
Average high39°
Average low16°
Average precipitation0.03 in
Chance of precipitation20%
Record high56° (1999)
Record low-16° (2000)
Sat, 1437° / 16°0.05
37 °
Chester, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high37°
Average low16°
Average precipitation0.05 in
Chance of precipitation27%
Record high55° (1999)
Record low-15° (1961)
Sun, 1537° / 13°0.04
37 °
Chester, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high37°
Average low13°
Average precipitation0.04 in
Chance of precipitation17%
Record high56° (2016)
Record low-12° (1970)
Mon, 1638° / 13°0.04
38 °
Chester, Monday, 16 November
Climate normal for this date — 60-year average.
Average high38°
Average low13°
Average precipitation0.04 in
Chance of precipitation10%
Record high54° (1999)
Record low-21° (1997)
Tue, 1737° / 13°0.04
37 °
Chester, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high37°
Average low13°
Average precipitation0.04 in
Chance of precipitation20%
Record high52° (1981)
Record low-18° (2000)
Wed, 1835° / 12°0.03
35 °
Chester, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high35°
Average low12°
Average precipitation0.03 in
Chance of precipitation12%
Record high51° (2008)
Record low-14° (1969)
Thu, 1936° / 12°0.04
36 °
Chester, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high36°
Average low12°
Average precipitation0.04 in
Chance of precipitation17%
Record high55° (1989)
Record low-19° (1971)
Fri, 2037° / 11°0.03
37 °
Chester, Friday, 20 November
Climate normal for this date — 60-year average.
Average high37°
Average low11°
Average precipitation0.03 in
Chance of precipitation17%
Record high57° (1989)
Record low-12° (1985)
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 Chester, 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 Chester, 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.