As of 00:04 MDT

Weather in Chester, CO

39°

Chester, Tuesday, 20 October, 00:04

Overcast. Feels like 33°. High 57°, low 34°.

Pressure30.18 inHg

Wind8.1 mph SW

Humidity80%

Visibility6.2 mi

Dew point33°

See detailed hourly forecast

Monthly outlook for Chester, CO: average high 49.9°, average low 32.9°. That is 2.9° above the climate normal for October. Precipitation is expected on 5 days (about 1.1 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 21 October (58.1°), the coolest 2 November (25.8°).

49.9°/32.9°

Average high / low

+2.9°

Above normal

5 / 3

Wet days / normal

1.1 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
20 October – 29 October	52.7°	46.6°	+3.4°
30 October – 8 November	45.3°	41.7°	+2°
9 November – 18 November	at normal	37.8°	—

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).

Wed, 2158° / 35°

0.04

58 °

Chester, Wednesday, 21 October

Light rain. High 58°, low 35°.

Pressure30.27 inHg

Wind3.3 mph S

Humidity50%

Visibility6.2 mi

Dew point29°

Thu, 2254° / 40°

0.19

54 °

Chester, Thursday, 22 October

Light rain. High 54°, low 40°.

Pressure30.27 inHg

Wind2.5 mph S

Humidity91%

Visibility5.4 mi

Dew point44°

Fri, 2356° / 40°

0.2

56 °

Chester, Friday, 23 October

Rain. High 56°, low 40°.

Pressure30.00 inHg

Wind8.3 mph SW

Humidity68%

Visibility6.2 mi

Dew point38°

Sat, 2449° / 38°

0.43

49 °

Chester, Saturday, 24 October

Snow. High 49°, low 38°.

Pressure30.09 inHg

Wind9.3 mph E

Humidity79%

Visibility—

Dew point42°

Sun, 2550° / 36°

0.08

50 °

Chester, Sunday, 25 October

Light snow. High 50°, low 36°.

Pressure30.18 inHg

Wind5.5 mph SE

Humidity58%

Visibility—

Dew point32°

Mon, 2653° / 33°

53 °

Chester, Monday, 26 October

Partly cloudy. High 53°, low 33°.

Pressure30.09 inHg

Wind4.1 mph NW

Humidity22%

Visibility—

Dew point12°

Tue, 2750° / 32°

50 °

Chester, Tuesday, 27 October

Partly cloudy. High 50°, low 32°.

Pressure30.27 inHg

Wind6.8 mph SE

Humidity51%

Visibility—

Dew point27°

Wed, 2850° / 30°

50 °

Chester, Wednesday, 28 October

Overcast. High 50°, low 30°.

Pressure30.21 inHg

Wind6.5 mph W

Humidity43%

Visibility—

Dew point24°

Thu, 2950° / 30°

50 °

Chester, Thursday, 29 October

Clear. High 50°, low 30°.

Pressure30.03 inHg

Wind8.4 mph W

Humidity32%

Visibility—

Dew point18°

Fri, 3047° / 30°

47 °

Chester, Friday, 30 October

Overcast. High 47°, low 30°.

Pressure29.97 inHg

Wind8 mph W

Humidity44%

Visibility—

Dew point23°

Sat, 3141° / 33°

0.11

41 °

Chester, Saturday, 31 October

Snow. High 41°, low 33°.

Pressure29.97 inHg

Wind5.9 mph W

Humidity61%

Visibility—

Dew point28°

Sun, 0142° / 28°

0.02

42 °

Chester, Sunday, 1 November

Light rain. High 42°, low 28°.

Pressure30.15 inHg

Wind7.5 mph W

Humidity61%

Visibility—

Dew point26°

Mon, 0247° / 26°

47 °

Chester, Monday, 2 November

Clear. High 47°, low 26°.

Pressure30.27 inHg

Wind7.4 mph W

Humidity33%

Visibility—

Dew point15°

Tue, 0350° / 30°

50 °

Chester, Tuesday, 3 November

Overcast. High 50°, low 30°.

Pressure30.09 inHg

Wind5.4 mph SW

Humidity26%

Visibility—

Dew point13°

Wed, 0443° / 31°

43 °

Chester, Wednesday, 4 November

Partly cloudy. High 43°, low 31°.

Pressure29.97 inHg

Wind11.5 mph W

Humidity47%

Visibility—

Dew point23°

From day 17 onward the outlook is built from 60-year climate statistics

Thu, 0542° / 18°

0.02

42 °

Chester, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high42°

Average low18°

Average precipitation0.02 in

Chance of precipitation13%

Record high55° (1975)

Record low-9° (1974)

Fri, 0642° / 18°

0.02

42 °

Chester, Friday, 6 November

Climate normal for this date — 60-year average.

Average high42°

Average low18°

Average precipitation0.02 in

Chance of precipitation12%

Record high56° (2010)

Record low-15° (1961)

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)

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.