Monthly outlook for Marshall, CO: average high 66.2°, average low 46.9°. That is 2.4° above the climate normal for October. Precipitation is expected on 2 days (about 0.9 inches), against a normal of 3 days and 0.9 inches. The warmest day looks like 11 October (80.8°), the coolest 17 October (32.9°).
66.2°/46.9°
Average high / low
+2.4°
Above normal
2 / 3
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 October – 19 October
65°
62.5°
+1.4°
20 October – 29 October
68.1°
59.1°
+5°
30 October – 8 November
at normal
52.8°
—
October records over 66 years
85.1°2 October 2024All-time high
-5.8°30 October 1993All-time low
Climate normals and records are computed from the nearest reference point — Boulder (5 mi).
Sun, 1181° / 58°0
81 °
Marshall, Sunday, 11 October
Mostly clear. High 81°, low 58°.
Pressure29.65 inHg
Wind6.2 mph E
Humidity26%
Visibility6.2 mi
Dew point37°
Mon, 1276° / 49°0
76 °
Marshall, Monday, 12 October
Clear. High 76°, low 49°.
Pressure29.71 inHg
Wind1.1 mph E
Humidity21%
Visibility6.2 mi
Dew point32°
Tue, 1358° / 48°0.02
58 °
Marshall, Tuesday, 13 October
Light rain. High 58°, low 48°.
Pressure29.91 inHg
Wind4.9 mph NE
Humidity66%
Visibility6.2 mi
Dew point46°
Wed, 1451° / 44°0.62
51 °
Marshall, Wednesday, 14 October
Rain. High 51°, low 44°.
Pressure30.15 inHg
Wind6.2 mph E
Humidity94%
Visibility—
Dew point45°
Thu, 1550° / 39°0.25
50 °
Marshall, Thursday, 15 October
Light rain. High 50°, low 39°.
Pressure30.24 inHg
Wind5.9 mph N
Humidity63%
Visibility—
Dew point37°
Fri, 1653° / 40°0.02
53 °
Marshall, Friday, 16 October
Light rain. High 53°, low 40°.
Pressure30.50 inHg
Wind7.4 mph E
Humidity54%
Visibility—
Dew point30°
Sat, 1758° / 33°0
58 °
Marshall, Saturday, 17 October
Clear. High 58°, low 33°.
Pressure30.33 inHg
Wind6.2 mph SW
Humidity28%
Visibility—
Dew point16°
Sun, 1872° / 50°0
72 °
Marshall, Sunday, 18 October
Overcast. High 72°, low 50°.
Pressure30.00 inHg
Wind13.8 mph W
Humidity18%
Visibility—
Dew point23°
Mon, 1972° / 52°0
72 °
Marshall, Monday, 19 October
Overcast. High 72°, low 52°.
Pressure29.91 inHg
Wind11.5 mph W
Humidity17%
Visibility—
Dew point21°
Tue, 2065° / 45°0
65 °
Marshall, Tuesday, 20 October
Partly cloudy. High 65°, low 45°.
Pressure29.71 inHg
Wind22.3 mph W
Humidity19%
Visibility—
Dew point20°
Wed, 2169° / 39°0
69 °
Marshall, Wednesday, 21 October
Clear. High 69°, low 39°.
Pressure30.00 inHg
Wind8.7 mph W
Humidity12%
Visibility—
Dew point8°
Thu, 2266° / 49°0
66 °
Marshall, Thursday, 22 October
Overcast. High 66°, low 49°.
Pressure30.09 inHg
Wind9.7 mph W
Humidity16%
Visibility—
Dew point14°
Fri, 2373° / 48°0
73 °
Marshall, Friday, 23 October
Clear. High 73°, low 48°.
Pressure29.97 inHg
Wind8.8 mph W
Humidity15%
Visibility—
Dew point18°
Sat, 2473° / 52°0
73 °
Marshall, Saturday, 24 October
Clear. High 73°, low 52°.
Pressure30.00 inHg
Wind10.5 mph W
Humidity19%
Visibility—
Dew point25°
Sun, 2562° / 47°0
62 °
Marshall, Sunday, 25 October
Mostly clear. High 62°, low 47°.
Pressure30.27 inHg
Wind8.8 mph E
Humidity36%
Visibility—
Dew point31°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2658° / 34°0.08
58 °
Marshall, Monday, 26 October
Climate normal for this date — 60-year average.
Average high58°
Average low34°
Average precipitation0.08 in
Chance of precipitation22%
Record high75° (1977)
Record low5° (2020)
Tue, 2756° / 33°0.04
56 °
Marshall, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high56°
Average low33°
Average precipitation0.04 in
Chance of precipitation23%
Record high79° (2016)
Record low0° (2020)
Wed, 2857° / 32°0.06
57 °
Marshall, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high57°
Average low32°
Average precipitation0.06 in
Chance of precipitation22%
Record high78° (2024)
Record low8° (1976)
Thu, 2956° / 32°0.07
56 °
Marshall, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high56°
Average low32°
Average precipitation0.07 in
Chance of precipitation35%
Record high76° (1968)
Record low5° (1993)
Fri, 3053° / 30°0.06
53 °
Marshall, Friday, 30 October
Climate normal for this date — 60-year average.
Average high53°
Average low30°
Average precipitation0.06 in
Chance of precipitation30%
Record high74° (1968)
Record low-6° (1993)
Sat, 3153° / 30°0.05
53 °
Marshall, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high53°
Average low30°
Average precipitation0.05 in
Chance of precipitation28%
Record high74° (2016)
Record low3° (1991)
Sun, 0152° / 30°0.07
52 °
Marshall, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high52°
Average low30°
Average precipitation0.07 in
Chance of precipitation33%
Record high71° (2008)
Record low6° (1979)
Mon, 0251° / 28°0.08
51 °
Marshall, Monday, 2 November
Climate normal for this date — 60-year average.
Average high51°
Average low28°
Average precipitation0.08 in
Chance of precipitation27%
Record high78° (2025)
Record low3° (1991)
Tue, 0352° / 28°0.06
52 °
Marshall, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high52°
Average low28°
Average precipitation0.06 in
Chance of precipitation25%
Record high70° (2020)
Record low-12° (1991)
Wed, 0453° / 28°0.04
53 °
Marshall, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high53°
Average low28°
Average precipitation0.04 in
Chance of precipitation20%
Record high73° (2025)
Record low4° (2002)
Thu, 0553° / 29°0.03
53 °
Marshall, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high53°
Average low29°
Average precipitation0.03 in
Chance of precipitation20%
Record high71° (2023)
Record low2° (1967)
Fri, 0654° / 29°0.04
54 °
Marshall, Friday, 6 November
Climate normal for this date — 60-year average.
Average high54°
Average low29°
Average precipitation0.04 in
Chance of precipitation17%
Record high74° (2010)
Record low1° (1961)
Sat, 0754° / 29°0.02
54 °
Marshall, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high54°
Average low29°
Average precipitation0.02 in
Chance of precipitation15%
Record high72° (2021)
Record low5° (2000)
Sun, 0853° / 29°0.06
53 °
Marshall, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high53°
Average low29°
Average precipitation0.06 in
Chance of precipitation27%
Record high71° (1978)
Record low5° (1993)
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 Marshall, 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 Marshall, 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.