As of 13:59 MDT

Weather in Keystone, CO

60°

Keystone, Thursday, 8 October, 13:59

Partly cloudy. Feels like 57°. High 63°, low 39°.

Pressure30.03 inHg

Wind5 mph NE

Humidity20%

Visibility6.2 mi

Dew point20°

See detailed hourly forecast

Monthly outlook for Keystone, CO: average high 53.4°, average low 32.1°. That is 4.3° above the climate normal for October. Precipitation is expected on 5 days (about 0.9 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 12 October (67°), the coolest 19 October (19.8°).

53.4°/32.1°

Average high / low

+4.3°

Above normal

5 / 4

Wet days / normal

0.9 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
8 October – 17 October	55.6°	46.7°	+4.9°
18 October – 27 October	49.6°	43.1°	+3.6°
28 October – 6 November	at normal	37.8°	—

October records over 66 years

64.9°1 October 2010All-time high

-20.2°30 October 2023All-time low

Climate normals and records are computed from the nearest reference point — Montezuma (4 mi).

Fri, 0966° / 42°

66 °

Keystone, Friday, 9 October

Clear. High 66°, low 42°.

Pressure30.03 inHg

Wind5.1 mph W

Humidity39%

Visibility4.1 mi

Dew point27°

Sat, 1064° / 43°

0.09

64 °

Keystone, Saturday, 10 October

Light rain. High 64°, low 43°.

Pressure29.91 inHg

Wind9.7 mph W

Humidity50%

Visibility4.9 mi

Dew point34°

Sun, 1166° / 44°

66 °

Keystone, Sunday, 11 October

Overcast. High 66°, low 44°.

Pressure29.85 inHg

Wind8.5 mph SW

Humidity42%

Visibility6.2 mi

Dew point34°

Mon, 1267° / 42°

67 °

Keystone, Monday, 12 October

Clear. High 67°, low 42°.

Pressure29.88 inHg

Wind8.4 mph SW

Humidity38%

Visibility5.6 mi

Dew point22°

Tue, 1365° / 43°

0.01

65 °

Keystone, Tuesday, 13 October

Light rain. High 65°, low 43°.

Pressure29.88 inHg

Wind12.4 mph S

Humidity44%

Visibility—

Dew point38°

Wed, 1455° / 28°

0.16

55 °

Keystone, Wednesday, 14 October

Snow. High 55°, low 28°.

Pressure29.53 inHg

Wind7.2 mph NW

Humidity41%

Visibility—

Dew point30°

Thu, 1538° / 23°

0.14

38 °

Keystone, Thursday, 15 October

Snow. High 38°, low 23°.

Pressure29.97 inHg

Wind14.2 mph W

Humidity61%

Visibility—

Dew point22°

Fri, 1636° / 25°

0.06

36 °

Keystone, Friday, 16 October

Light snow. High 36°, low 25°.

Pressure30.30 inHg

Wind10.7 mph SE

Humidity65%

Visibility—

Dew point24°

Sat, 1737° / 25°

0.38

37 °

Keystone, Saturday, 17 October

Snow. High 37°, low 25°.

Pressure30.27 inHg

Wind10.8 mph SE

Humidity84%

Visibility—

Dew point31°

Sun, 1838° / 23°

0.04

38 °

Keystone, Sunday, 18 October

Light snow. High 38°, low 23°.

Pressure30.12 inHg

Wind8.4 mph NW

Humidity75%

Visibility—

Dew point29°

Mon, 1950° / 20°

50 °

Keystone, Monday, 19 October

Clear. High 50°, low 20°.

Pressure30.24 inHg

Wind4.7 mph W

Humidity51%

Visibility—

Dew point27°

Tue, 2051° / 27°

51 °

Keystone, Tuesday, 20 October

Clear. High 51°, low 27°.

Pressure30.27 inHg

Wind6.8 mph NW

Humidity42%

Visibility—

Dew point24°

Wed, 2153° / 28°

53 °

Keystone, Wednesday, 21 October

Clear. High 53°, low 28°.

Pressure30.15 inHg

Wind9.2 mph NW

Humidity30%

Visibility—

Dew point19°

Thu, 2252° / 29°

52 °

Keystone, Thursday, 22 October

Clear. High 52°, low 29°.

Pressure30.15 inHg

Wind10.4 mph W

Humidity23%

Visibility—

Dew point11°

Fri, 2353° / 33°

53 °

Keystone, Friday, 23 October

Mostly clear. High 53°, low 33°.

Pressure29.71 inHg

Wind19 mph W

Humidity26%

Visibility—

Dew point17°

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

Sat, 2442° / 20°

0.03

42 °

Keystone, Saturday, 24 October

Climate normal for this date — 60-year average.

Average high42°

Average low20°

Average precipitation0.03 in

Chance of precipitation25%

Record high57° (2014)

Record low-8° (1975)

Sun, 2543° / 19°

0.06

43 °

Keystone, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high43°

Average low19°

Average precipitation0.06 in

Chance of precipitation27%

Record high58° (2021)

Record low-15° (1975)

Mon, 2641° / 20°

0.08

41 °

Keystone, Monday, 26 October

Climate normal for this date — 60-year average.

Average high41°

Average low20°

Average precipitation0.08 in

Chance of precipitation32%

Record high59° (1977)

Record low-2° (1997)

Tue, 2741° / 19°

0.05

41 °

Keystone, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high41°

Average low19°

Average precipitation0.05 in

Chance of precipitation28%

Record high58° (2016)

Record low-5° (2020)

Wed, 2841° / 19°

0.06

41 °

Keystone, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high41°

Average low19°

Average precipitation0.06 in

Chance of precipitation30%

Record high53° (1999)

Record low-9° (1970)

Thu, 2939° / 17°

0.07

39 °

Keystone, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high39°

Average low17°

Average precipitation0.07 in

Chance of precipitation38%

Record high56° (1968)

Record low-7° (1991)

Fri, 3038° / 15°

0.06

38 °

Keystone, Friday, 30 October

Climate normal for this date — 60-year average.

Average high38°

Average low15°

Average precipitation0.06 in

Chance of precipitation35%

Record high54° (1962)

Record low-20° (2023)

Sat, 3138° / 15°

0.05

38 °

Keystone, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high38°

Average low15°

Average precipitation0.05 in

Chance of precipitation33%

Record high55° (1999)

Record low-12° (2019)

Sun, 0136° / 16°

0.06

36 °

Keystone, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high36°

Average low16°

Average precipitation0.06 in

Chance of precipitation35%

Record high51° (1964)

Record low-3° (1979)

Mon, 0237° / 14°

0.06

37 °

Keystone, Monday, 2 November

Climate normal for this date — 60-year average.

Average high37°

Average low14°

Average precipitation0.06 in

Chance of precipitation23%

Record high54° (2025)

Record low-9° (2004)

Tue, 0337° / 13°

0.06

37 °

Keystone, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high37°

Average low13°

Average precipitation0.06 in

Chance of precipitation25%

Record high56° (2025)

Record low-16° (1991)

Wed, 0438° / 14°

0.03

38 °

Keystone, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high38°

Average low14°

Average precipitation0.03 in

Chance of precipitation20%

Record high55° (1983)

Record low-7° (1970)

Thu, 0537° / 14°

0.04

37 °

Keystone, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high37°

Average low14°

Average precipitation0.04 in

Chance of precipitation27%

Record high54° (1975)

Record low-4° (1992)

Fri, 0637° / 13°

0.02

37 °

Keystone, Friday, 6 November

Climate normal for this date — 60-year average.

Average high37°

Average low13°

Average precipitation0.02 in

Chance of precipitation17%

Record high55° (2020)

Record low-10° (2013)

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 Keystone, 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 Keystone, 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.