As of 18:06 MDT

Weather in Marnett, CO

67°Current weather

Marnett, Saturday, 17 October, 18:06

Clear. Feels like 65°. High 75°, low 39°.

Pressure30.09 inHg
Wind1 mph NW
Humidity34%
Visibility6.2 mi
Dew point37°

Monthly outlook for Marnett, CO: average high 67.1°, average low 43.5°. That is 4.6° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 17 October (75.3°), the coolest 31 October (37.7°).

67.1°/43.5°
Average high / low
+4.6°
Above normal
1 / 3
Wet days / normal
0.1 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
17 October – 26 October67.6°61.1°+3.7°
27 October – 5 November66.2°54°+6.8°
6 November – 15 Novemberat normal51.2°—

October records over 66 years

84.6°2 October 2024All-time high
-1.5°27 October 2020All-time low

Climate normals and records are computed from the nearest reference point — Longmont (2 mi).

Sun, 1874° / 39°0Overcast
74 °Overcast

Marnett, Sunday, 18 October

Overcast. High 74°, low 39°.

Pressure30.03 inHg
Wind1.8 mph E
Humidity29%
Visibility6.2 mi
Dew point32°
Mon, 1963° / 43°0Clear
63 °Clear

Marnett, Monday, 19 October

Clear. High 63°, low 43°.

Pressure30.12 inHg
Wind1.9 mph E
Humidity52%
Visibility6.2 mi
Dew point39°
Tue, 2069° / 41°0Clear
69 °Clear

Marnett, Tuesday, 20 October

Clear. High 69°, low 41°.

Pressure30.03 inHg
Wind2.3 mph E
Humidity41%
Visibility6.2 mi
Dew point40°
Wed, 2172° / 44°0Clear
72 °Clear

Marnett, Wednesday, 21 October

Clear. High 72°, low 44°.

Pressure30.12 inHg
Wind2.9 mph E
Humidity39%
Visibility6.2 mi
Dew point41°
Thu, 2268° / 48°0.01Light rain
68 °Light rain

Marnett, Thursday, 22 October

Light rain. High 68°, low 48°.

Pressure30.06 inHg
Wind5.1 mph NW
Humidity47%
Visibility—
Dew point40°
Fri, 2374° / 50°0.04Light rain
74 °Light rain

Marnett, Friday, 23 October

Light rain. High 74°, low 50°.

Pressure29.77 inHg
Wind11.1 mph N
Humidity43%
Visibility—
Dew point43°
Sat, 2454° / 50°0.09Light rain
54 °Light rain

Marnett, Saturday, 24 October

Light rain. High 54°, low 50°.

Pressure30.12 inHg
Wind5.8 mph NW
Humidity71%
Visibility—
Dew point43°
Sun, 2563° / 42°0Mostly clear
63 °Mostly clear

Marnett, Sunday, 25 October

Mostly clear. High 63°, low 42°.

Pressure30.09 inHg
Wind7 mph NW
Humidity42%
Visibility—
Dew point35°
Mon, 2664° / 42°0Clear
64 °Clear

Marnett, Monday, 26 October

Clear. High 64°, low 42°.

Pressure30.12 inHg
Wind6 mph SE
Humidity41%
Visibility—
Dew point33°
Tue, 2764° / 42°0Clear
64 °Clear

Marnett, Tuesday, 27 October

Clear. High 64°, low 42°.

Pressure29.97 inHg
Wind5.2 mph SE
Humidity37%
Visibility—
Dew point31°
Wed, 2865° / 51°0Clear
65 °Clear

Marnett, Wednesday, 28 October

Clear. High 65°, low 51°.

Pressure29.74 inHg
Wind19.6 mph W
Humidity25%
Visibility—
Dew point27°
Thu, 2969° / 46°0Overcast
69 °Overcast

Marnett, Thursday, 29 October

Overcast. High 69°, low 46°.

Pressure29.71 inHg
Wind20.5 mph W
Humidity23%
Visibility—
Dew point23°
Fri, 3064° / 43°0Light rain
64 °Light rain

Marnett, Friday, 30 October

Light rain. High 64°, low 43°.

Pressure29.53 inHg
Wind12.8 mph W
Humidity19%
Visibility—
Dew point19°
Sat, 3167° / 38°0Overcast
67 °Overcast

Marnett, Saturday, 31 October

Overcast. High 67°, low 38°.

Pressure29.74 inHg
Wind8.9 mph E
Humidity18%
Visibility—
Dew point15°
Sun, 0167° / 41°0Overcast
67 °Overcast

Marnett, Sunday, 1 November

Overcast. High 67°, low 41°.

Pressure29.77 inHg
Wind16.9 mph W
Humidity19%
Visibility—
Dew point22°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0252° / 29°0.07Climate normal
52 °Climate normal

Marnett, Monday, 2 November

Climate normal for this date — 60-year average.

Average high52°
Average low29°
Average precipitation0.07 in
Chance of precipitation27%
Record high78° (2025)
Record low4° (1991)
Tue, 0352° / 29°0.04Climate normal
52 °Climate normal

Marnett, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high52°
Average low29°
Average precipitation0.04 in
Chance of precipitation22%
Record high71° (2015)
Record low-7° (1991)
Wed, 0454° / 30°0.03Climate normal
54 °Climate normal

Marnett, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high54°
Average low30°
Average precipitation0.03 in
Chance of precipitation15%
Record high73° (2020)
Record low6° (2002)
Thu, 0553° / 30°0.04Climate normal
53 °Climate normal

Marnett, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high53°
Average low30°
Average precipitation0.04 in
Chance of precipitation18%
Record high70° (2023)
Record low4° (1967)
Fri, 0654° / 30°0.03Climate normal
54 °Climate normal

Marnett, Friday, 6 November

Climate normal for this date — 60-year average.

Average high54°
Average low30°
Average precipitation0.03 in
Chance of precipitation17%
Record high74° (2010)
Record low5° (1967)
Sat, 0754° / 30°0.03Climate normal
54 °Climate normal

Marnett, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high54°
Average low30°
Average precipitation0.03 in
Chance of precipitation13%
Record high73° (2021)
Record low10° (1967)
Sun, 0853° / 30°0.04Climate normal
53 °Climate normal

Marnett, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high53°
Average low30°
Average precipitation0.04 in
Chance of precipitation20%
Record high72° (2006)
Record low10° (1993)
Mon, 0951° / 29°0.06Climate normal
51 °Climate normal

Marnett, Monday, 9 November

Climate normal for this date — 60-year average.

Average high51°
Average low29°
Average precipitation0.06 in
Chance of precipitation23%
Record high69° (2016)
Record low13° (1986)
Tue, 1051° / 27°0.03Climate normal
51 °Climate normal

Marnett, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high51°
Average low27°
Average precipitation0.03 in
Chance of precipitation20%
Record high69° (2005)
Record low8° (1986)
Wed, 1149° / 27°0.04Climate normal
49 °Climate normal

Marnett, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high49°
Average low27°
Average precipitation0.04 in
Chance of precipitation20%
Record high72° (2025)
Record low6° (1998)
Thu, 1250° / 26°0.04Climate normal
50 °Climate normal

Marnett, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high50°
Average low26°
Average precipitation0.04 in
Chance of precipitation23%
Record high70° (1989)
Record low1° (2014)
Fri, 1351° / 28°0.04Climate normal
51 °Climate normal

Marnett, Friday, 13 November

Climate normal for this date — 60-year average.

Average high51°
Average low28°
Average precipitation0.04 in
Chance of precipitation18%
Record high71° (2025)
Record low-12° (2014)
Sat, 1449° / 27°0.06Climate normal
49 °Climate normal

Marnett, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high49°
Average low27°
Average precipitation0.06 in
Chance of precipitation27%
Record high73° (2025)
Record low2° (2000)
Sun, 1549° / 26°0.04Climate normal
49 °Climate normal

Marnett, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high49°
Average low26°
Average precipitation0.04 in
Chance of precipitation15%
Record high73° (2016)
Record low-8° (1997)

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 Marnett, 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 Marnett, 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.