As of 02:46 MDT

Weather in Greystone, CO

50°

Greystone, Friday, 9 October, 02:46

Clear. Feels like 50°. High 75°, low 47°.

Pressure29.97 inHg

Wind1.5 mph SW

Humidity59%

Visibility6.2 mi

Dew point36°

See detailed hourly forecast

Monthly outlook for Greystone, CO: average high 59.8°, average low 43.9°. That is 1.9° above the climate normal for October. Precipitation is expected on 9 days (about 2.0 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 9 October (75.5°), the coolest 14 October (36.3°).

59.8°/43.9°

Average high / low

+1.9°

Above normal

9 / 3

Wet days / normal

2.0 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
9 October – 18 October	60.8°	57.6°	+1.8°
19 October – 28 October	58.2°	52.7°	+3°
29 October – 7 November	at normal	45.4°	—

October records over 66 years

78.3°1 October 2015All-time high

-9°31 October 1991All-time low

Sat, 1071° / 47°

0.18

71 °

Greystone, Saturday, 10 October

Rain. High 71°, low 47°.

Pressure29.68 inHg

Wind13.9 mph SW

Humidity27%

Visibility5.3 mi

Dew point34°

Sun, 1165° / 49°

0.3

65 °

Greystone, Sunday, 11 October

Rain. High 65°, low 49°.

Pressure29.71 inHg

Wind16.1 mph S

Humidity59%

Visibility6.2 mi

Dew point47°

Mon, 1259° / 48°

0.33

59 °

Greystone, Monday, 12 October

Light rain. High 59°, low 48°.

Pressure29.77 inHg

Wind14.7 mph SW

Humidity49%

Visibility6.2 mi

Dew point40°

Tue, 1354° / 41°

0.37

54 °

Greystone, Tuesday, 13 October

Light rain. High 54°, low 41°.

Pressure29.80 inHg

Wind12.9 mph SW

Humidity63%

Visibility—

Dew point40°

Wed, 1451° / 36°

0.44

51 °

Greystone, Wednesday, 14 October

Rain. High 51°, low 36°.

Pressure30.09 inHg

Wind13.8 mph NW

Humidity67%

Visibility—

Dew point33°

Thu, 1555° / 40°

0.04

55 °

Greystone, Thursday, 15 October

Light rain. High 55°, low 40°.

Pressure30.12 inHg

Wind16.2 mph NW

Humidity42%

Visibility—

Dew point28°

Fri, 1655° / 38°

55 °

Greystone, Friday, 16 October

Clear. High 55°, low 38°.

Pressure30.45 inHg

Wind5.7 mph S

Humidity44%

Visibility—

Dew point26°

Sat, 1761° / 43°

61 °

Greystone, Saturday, 17 October

Clear. High 61°, low 43°.

Pressure30.30 inHg

Wind8.3 mph SW

Humidity26%

Visibility—

Dew point21°

Sun, 1863° / 44°

63 °

Greystone, Sunday, 18 October

Clear. High 63°, low 44°.

Pressure30.12 inHg

Wind7.1 mph SW

Humidity24%

Visibility—

Dew point20°

Mon, 1963° / 45°

63 °

Greystone, Monday, 19 October

Clear. High 63°, low 45°.

Pressure30.03 inHg

Wind10.2 mph SW

Humidity24%

Visibility—

Dew point21°

Tue, 2064° / 46°

64 °

Greystone, Tuesday, 20 October

Clear. High 64°, low 46°.

Pressure29.94 inHg

Wind15.6 mph SW

Humidity26%

Visibility—

Dew point24°

Wed, 2157° / 48°

0.14

57 °

Greystone, Wednesday, 21 October

Light rain. High 57°, low 48°.

Pressure29.97 inHg

Wind9.1 mph SE

Humidity66%

Visibility—

Dew point42°

Thu, 2255° / 45°

0.12

55 °

Greystone, Thursday, 22 October

Light rain. High 55°, low 45°.

Pressure29.94 inHg

Wind17.2 mph S

Humidity56%

Visibility—

Dew point37°

Fri, 2356° / 42°

0.05

56 °

Greystone, Friday, 23 October

Light rain. High 56°, low 42°.

Pressure29.94 inHg

Wind18 mph SW

Humidity45%

Visibility—

Dew point32°

Sat, 2454° / 42°

54 °

Greystone, Saturday, 24 October

Clear. High 54°, low 42°.

Pressure29.97 inHg

Wind12.8 mph SW

Humidity48%

Visibility—

Dew point32°

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

Sun, 2552° / 33°

0.05

52 °

Greystone, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high52°

Average low33°

Average precipitation0.05 in

Chance of precipitation23%

Record high68° (2014)

Record low6° (2020)

Mon, 2651° / 31°

0.05

51 °

Greystone, Monday, 26 October

Climate normal for this date — 60-year average.

Average high51°

Average low31°

Average precipitation0.05 in

Chance of precipitation20%

Record high65° (1988)

Record low-4° (1997)

Tue, 2750° / 30°

0.05

50 °

Greystone, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high50°

Average low30°

Average precipitation0.05 in

Chance of precipitation17%

Record high64° (2003)

Record low2° (1997)

Wed, 2850° / 30°

0.07

50 °

Greystone, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high50°

Average low30°

Average precipitation0.07 in

Chance of precipitation25%

Record high66° (2016)

Record low1° (1984)

Thu, 2948° / 30°

0.09

48 °

Greystone, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high48°

Average low30°

Average precipitation0.09 in

Chance of precipitation30%

Record high68° (2003)

Record low0° (2019)

Fri, 3047° / 28°

0.04

47 °

Greystone, Friday, 30 October

Climate normal for this date — 60-year average.

Average high47°

Average low28°

Average precipitation0.04 in

Chance of precipitation27%

Record high65° (2016)

Record low-6° (1971)

Sat, 3145° / 28°

0.06

45 °

Greystone, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high45°

Average low28°

Average precipitation0.06 in

Chance of precipitation25%

Record high64° (2008)

Record low-9° (1991)

Sun, 0145° / 27°

0.04

45 °

Greystone, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high45°

Average low27°

Average precipitation0.04 in

Chance of precipitation22%

Record high64° (2014)

Record low-9° (1972)

Mon, 0245° / 27°

0.03

45 °

Greystone, Monday, 2 November

Climate normal for this date — 60-year average.

Average high45°

Average low27°

Average precipitation0.03 in

Chance of precipitation20%

Record high61° (2025)

Record low-4° (1991)

Tue, 0345° / 26°

0.06

45 °

Greystone, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high45°

Average low26°

Average precipitation0.06 in

Chance of precipitation18%

Record high63° (2020)

Record low-13° (1991)

Wed, 0445° / 26°

0.02

45 °

Greystone, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high45°

Average low26°

Average precipitation0.02 in

Chance of precipitation13%

Record high64° (2020)

Record low-7° (1994)

Thu, 0545° / 27°

0.04

45 °

Greystone, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high45°

Average low27°

Average precipitation0.04 in

Chance of precipitation18%

Record high62° (2020)

Record low-3° (1961)

Fri, 0645° / 27°

0.02

45 °

Greystone, Friday, 6 November

Climate normal for this date — 60-year average.

Average high45°

Average low27°

Average precipitation0.02 in

Chance of precipitation12%

Record high61° (1999)

Record low-5° (1971)

Sat, 0745° / 25°

0.02

45 °

Greystone, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high45°

Average low25°

Average precipitation0.02 in

Chance of precipitation12%

Record high62° (1999)

Record low-9° (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 Greystone, 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 Greystone, 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.