As of 09:51 MDT

Weather in Derby, CO

72°

Derby, Saturday, 10 October, 09:51

Mostly clear. Feels like 71°. High 82°, low 59°.

Pressure29.71 inHg

Wind9.2 mph SW

Humidity31%

Visibility6.2 mi

Dew point40°

See detailed hourly forecast

Monthly outlook for Derby, CO: average high 69.8°, average low 52°. That is 3.8° above the climate normal for October. Precipitation is expected on 2 days (about 0.4 inches), against a normal of 3 days and 0.8 inches. The warmest day looks like 11 October (84.1°), the coolest 17 October (39.5°).

69.8°/52°

Average high / low

+3.8°

Above normal

2 / 3

Wet days / normal

0.4 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
10 October – 19 October	69.6°	63.7°	+3.3°
20 October – 29 October	70.1°	60°	+5.6°
30 October – 8 November	at normal	53.5°	—

October records over 66 years

88.9°3 October 2025All-time high

-8.1°30 October 1993All-time low

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

Sun, 1184° / 62°

84 °

Derby, Sunday, 11 October

Partly cloudy. High 84°, low 62°.

Pressure29.62 inHg

Wind3 mph S

Humidity23%

Visibility6.2 mi

Dew point39°

Mon, 1282° / 60°

82 °

Derby, Monday, 12 October

Clear. High 82°, low 60°.

Pressure29.68 inHg

Wind7.1 mph S

Humidity20%

Visibility6.2 mi

Dew point34°

Tue, 1368° / 53°

68 °

Derby, Tuesday, 13 October

Partly cloudy. High 68°, low 53°.

Pressure29.88 inHg

Wind5.1 mph E

Humidity53%

Visibility6.2 mi

Dew point45°

Wed, 1456° / 50°

0.24

56 °

Derby, Wednesday, 14 October

Light rain. High 56°, low 50°.

Pressure30.12 inHg

Wind8.3 mph E

Humidity81%

Visibility—

Dew point47°

Thu, 1557° / 49°

0.13

57 °

Derby, Thursday, 15 October

Light rain. High 57°, low 49°.

Pressure30.24 inHg

Wind6.6 mph N

Humidity70%

Visibility—

Dew point43°

Fri, 1654° / 43°

0.02

54 °

Derby, Friday, 16 October

Light rain. High 54°, low 43°.

Pressure30.50 inHg

Wind10.3 mph E

Humidity45%

Visibility—

Dew point28°

Sat, 1762° / 39°

62 °

Derby, Saturday, 17 October

Clear. High 62°, low 39°.

Pressure30.36 inHg

Wind6.2 mph E

Humidity27%

Visibility—

Dew point18°

Sun, 1875° / 52°

75 °

Derby, Sunday, 18 October

Overcast. High 75°, low 52°.

Pressure29.97 inHg

Wind7.9 mph E

Humidity17%

Visibility—

Dew point22°

Mon, 1975° / 56°

75 °

Derby, Monday, 19 October

Overcast. High 75°, low 56°.

Pressure29.91 inHg

Wind6 mph NE

Humidity18%

Visibility—

Dew point23°

Tue, 2070° / 51°

70 °

Derby, Tuesday, 20 October

Overcast. High 70°, low 51°.

Pressure29.68 inHg

Wind28.6 mph NW

Humidity16%

Visibility—

Dew point20°

Wed, 2168° / 46°

68 °

Derby, Wednesday, 21 October

Clear. High 68°, low 46°.

Pressure30.06 inHg

Wind6.5 mph S

Humidity16%

Visibility—

Dew point11°

Thu, 2269° / 52°

69 °

Derby, Thursday, 22 October

Partly cloudy. High 69°, low 52°.

Pressure30.06 inHg

Wind10.8 mph E

Humidity15%

Visibility—

Dew point15°

Fri, 2375° / 51°

75 °

Derby, Friday, 23 October

Clear. High 75°, low 51°.

Pressure29.97 inHg

Wind6.5 mph E

Humidity14%

Visibility—

Dew point15°

Sat, 2475° / 55°

75 °

Derby, Saturday, 24 October

Mostly clear. High 75°, low 55°.

Pressure30.00 inHg

Wind8 mph E

Humidity17%

Visibility—

Dew point22°

Sun, 2564° / 53°

64 °

Derby, Sunday, 25 October

Clear. High 64°, low 53°.

Pressure30.24 inHg

Wind10 mph E

Humidity32%

Visibility—

Dew point30°

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

Mon, 2659° / 34°

0.07

59 °

Derby, Monday, 26 October

Climate normal for this date — 60-year average.

Average high59°

Average low34°

Average precipitation0.07 in

Chance of precipitation20%

Record high76° (1977)

Record low2° (2020)

Tue, 2757° / 32°

0.04

57 °

Derby, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high57°

Average low32°

Average precipitation0.04 in

Chance of precipitation20%

Record high80° (2016)

Record low-6° (2020)

Wed, 2858° / 32°

0.05

58 °

Derby, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high58°

Average low32°

Average precipitation0.05 in

Chance of precipitation15%

Record high80° (2024)

Record low6° (2011)

Thu, 2957° / 31°

0.07

57 °

Derby, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high57°

Average low31°

Average precipitation0.07 in

Chance of precipitation28%

Record high79° (2018)

Record low6° (1993)

Fri, 3054° / 29°

0.06

54 °

Derby, Friday, 30 October

Climate normal for this date — 60-year average.

Average high54°

Average low29°

Average precipitation0.06 in

Chance of precipitation28%

Record high75° (2016)

Record low-8° (1993)

Sat, 3153° / 29°

0.05

53 °

Derby, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high53°

Average low29°

Average precipitation0.05 in

Chance of precipitation27%

Record high76° (2016)

Record low1° (2019)

Sun, 0152° / 29°

0.07

52 °

Derby, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high52°

Average low29°

Average precipitation0.07 in

Chance of precipitation25%

Record high72° (1988)

Record low3° (1979)

Mon, 0252° / 28°

0.07

52 °

Derby, Monday, 2 November

Climate normal for this date — 60-year average.

Average high52°

Average low28°

Average precipitation0.07 in

Chance of precipitation23%

Record high81° (2025)

Record low2° (1991)

Tue, 0352° / 27°

0.06

52 °

Derby, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high52°

Average low27°

Average precipitation0.06 in

Chance of precipitation25%

Record high71° (2020)

Record low-13° (1991)

Wed, 0454° / 28°

0.02

54 °

Derby, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high54°

Average low28°

Average precipitation0.02 in

Chance of precipitation18%

Record high74° (2020)

Record low1° (2002)

Thu, 0554° / 28°

0.03

54 °

Derby, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high54°

Average low28°

Average precipitation0.03 in

Chance of precipitation15%

Record high73° (2023)

Record low0° (1967)

Fri, 0655° / 28°

0.03

55 °

Derby, Friday, 6 November

Climate normal for this date — 60-year average.

Average high55°

Average low28°

Average precipitation0.03 in

Chance of precipitation13%

Record high75° (2021)

Record low-1° (1967)

Sat, 0755° / 28°

0.02

55 °

Derby, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high55°

Average low28°

Average precipitation0.02 in

Chance of precipitation13%

Record high73° (2021)

Record low5° (1967)

Sun, 0855° / 28°

0.05

55 °

Derby, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high55°

Average low28°

Average precipitation0.05 in

Chance of precipitation23%

Record high73° (1978)

Record low7° (1986)

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 Derby, 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 Derby, 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.