Monthly outlook for Greeley, CO: average high 61.9°, average low 42.3°. That is 0.4° above the climate normal for October. Precipitation is expected on 5 days (about 2.0 inches), against a normal of 2 days and 0.5 inches. The warmest day looks like 21 October (75.7°), the coolest 17 October (32.7°).
61.9°/42.3°
Average high / low
+0.4°
Above normal
5 / 2
Wet days / normal
2.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
66.2°
62.9°
+1.8°
25 October – 3 November
54.8°
56.2°
-0.8°
4 November – 13 November
at normal
53.1°
—
October records over 66 years
86.5°2 October 2024All-time high
-3.8°27 October 2020All-time low
Fri, 1658° / 36°0
58 °
Greeley, Friday, 16 October
Clear. High 58°, low 36°.
Pressure30.71 inHg
Wind5.2 mph S
Humidity51%
Visibility6.2 mi
Dew point27°
Sat, 1769° / 33°0
69 °
Greeley, Saturday, 17 October
Clear. High 69°, low 33°.
Pressure30.24 inHg
Wind1.9 mph S
Humidity38%
Visibility6.2 mi
Dew point34°
Sun, 1870° / 39°0
70 °
Greeley, Sunday, 18 October
Partly cloudy. High 70°, low 39°.
Pressure30.03 inHg
Wind3.7 mph S
Humidity32%
Visibility6.2 mi
Dew point34°
Mon, 1968° / 44°0
68 °
Greeley, Monday, 19 October
Mostly clear. High 68°, low 44°.
Pressure30.03 inHg
Wind2.8 mph SE
Humidity42%
Visibility6.2 mi
Dew point39°
Tue, 2069° / 43°0
69 °
Greeley, Tuesday, 20 October
Clear. High 69°, low 43°.
Pressure29.97 inHg
Wind4.1 mph E
Humidity46%
Visibility—
Dew point40°
Wed, 2176° / 45°0
76 °
Greeley, Wednesday, 21 October
Clear. High 76°, low 45°.
Pressure29.91 inHg
Wind10.3 mph E
Humidity32%
Visibility—
Dew point35°
Thu, 2276° / 53°0
76 °
Greeley, Thursday, 22 October
Overcast. High 76°, low 53°.
Pressure29.71 inHg
Wind7.2 mph E
Humidity27%
Visibility—
Dew point35°
Fri, 2360° / 48°0.49
60 °
Greeley, Friday, 23 October
Rain. High 60°, low 48°.
Pressure29.59 inHg
Wind20.2 mph NW
Humidity37%
Visibility—
Dew point31°
Sat, 2460° / 43°0.1
60 °
Greeley, Saturday, 24 October
Light rain. High 60°, low 43°.
Pressure30.09 inHg
Wind18.3 mph NE
Humidity30%
Visibility—
Dew point24°
Sun, 2540° / 38°0.93
40 °
Greeley, Sunday, 25 October
Rain. High 40°, low 38°.
Pressure30.36 inHg
Wind11.8 mph NW
Humidity86%
Visibility—
Dew point35°
Mon, 2649° / 39°0.32
49 °
Greeley, Monday, 26 October
Rain. High 49°, low 39°.
Pressure30.09 inHg
Wind10.4 mph NW
Humidity91%
Visibility—
Dew point41°
Tue, 2759° / 42°0
59 °
Greeley, Tuesday, 27 October
Partly cloudy. High 59°, low 42°.
Pressure30.06 inHg
Wind9.3 mph N
Humidity40%
Visibility—
Dew point31°
Wed, 2865° / 42°0
65 °
Greeley, Wednesday, 28 October
Clear. High 65°, low 42°.
Pressure30.00 inHg
Wind3.8 mph NW
Humidity41%
Visibility—
Dew point33°
Thu, 2958° / 46°0
58 °
Greeley, Thursday, 29 October
Overcast. High 58°, low 46°.
Pressure30.30 inHg
Wind18.9 mph N
Humidity46%
Visibility—
Dew point33°
Fri, 3058° / 43°0
58 °
Greeley, Friday, 30 October
Overcast. High 58°, low 43°.
Pressure30.33 inHg
Wind7.6 mph SE
Humidity47%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3154° / 31°0.03
54 °
Greeley, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high54°
Average low31°
Average precipitation0.03 in
Chance of precipitation20%
Record high76° (2016)
Record low1° (2019)
Sun, 0154° / 31°0.04
54 °
Greeley, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high54°
Average low31°
Average precipitation0.04 in
Chance of precipitation20%
Record high72° (1988)
Record low13° (2002)
Mon, 0253° / 30°0.04
53 °
Greeley, Monday, 2 November
Climate normal for this date — 60-year average.
Average high53°
Average low30°
Average precipitation0.04 in
Chance of precipitation17%
Record high79° (2025)
Record low5° (1991)
Tue, 0353° / 30°0.03
53 °
Greeley, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high53°
Average low30°
Average precipitation0.03 in
Chance of precipitation13%
Record high73° (2020)
Record low5° (1991)
Wed, 0455° / 30°0.02
55 °
Greeley, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high55°
Average low30°
Average precipitation0.02 in
Chance of precipitation12%
Record high76° (2020)
Record low12° (2002)
Thu, 0555° / 31°0.02
55 °
Greeley, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high55°
Average low31°
Average precipitation0.02 in
Chance of precipitation13%
Record high74° (2023)
Record low10° (1967)
Fri, 0655° / 30°0.01
55 °
Greeley, Friday, 6 November
Climate normal for this date — 60-year average.
Average high55°
Average low30°
Average precipitation0.01 in
Chance of precipitation12%
Record high74° (2010)
Record low16° (2002)
Sat, 0756° / 30°0.01
56 °
Greeley, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high56°
Average low30°
Average precipitation0.01 in
Chance of precipitation10%
Record high74° (2021)
Record low17° (1973)
Sun, 0855° / 31°0.04
55 °
Greeley, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high55°
Average low31°
Average precipitation0.04 in
Chance of precipitation18%
Record high73° (2006)
Record low19° (1990)
Mon, 0952° / 29°0.04
52 °
Greeley, Monday, 9 November
Climate normal for this date — 60-year average.
Average high52°
Average low29°
Average precipitation0.04 in
Chance of precipitation18%
Record high70° (2019)
Record low16° (1966)
Tue, 1052° / 28°0.02
52 °
Greeley, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high52°
Average low28°
Average precipitation0.02 in
Chance of precipitation13%
Record high69° (2016)
Record low9° (1986)
Wed, 1150° / 28°0.03
50 °
Greeley, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high50°
Average low28°
Average precipitation0.03 in
Chance of precipitation18%
Record high72° (2025)
Record low11° (2014)
Thu, 1251° / 27°0.03
51 °
Greeley, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high51°
Average low27°
Average precipitation0.03 in
Chance of precipitation13%
Record high70° (1989)
Record low4° (2014)
Fri, 1352° / 28°0.03
52 °
Greeley, Friday, 13 November
Climate normal for this date — 60-year average.
Average high52°
Average low28°
Average precipitation0.03 in
Chance of precipitation20%
Record high73° (2025)
Record low-1° (2014)
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 Greeley, 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 Greeley, 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.