Monthly outlook for Harmony, CO: average high 90.4°, average low 64.4°. That is 4.6° above the climate normal for August. Precipitation is expected on 6 days (about 1.9 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 11 August (98.3°), the coolest 16 August (60.2°).
90.4°/64.4°
Average high / low
+4.6°
Above normal
6 / 4
Wet days / normal
1.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
91.1°
82.1°
+5°
19 August – 28 August
89.3°
81.9°
+4.1°
29 August – 7 September
at normal
80.5°
—
August records over 66 years
98.1°2 August 2008All-time high
42.3°28 August 2004All-time low
Climate normals and records are computed from the nearest reference point — Fort Collins (2 mi).
Mon, 1098° / 62°0.01
98 °
Harmony, Monday, 10 August
Light rain. High 98°, low 62°.
Pressure29.77 inHg
Wind4.9 mph SE
Humidity16%
Visibility6.2 mi
Dew point41°
Tue, 1198° / 70°0.02
98 °
Harmony, Tuesday, 11 August
Light rain. High 98°, low 70°.
Pressure29.77 inHg
Wind3.2 mph SE
Humidity13%
Visibility6.2 mi
Dew point37°
Wed, 1298° / 69°0
98 °
Harmony, Wednesday, 12 August
Overcast. High 98°, low 69°.
Pressure29.74 inHg
Wind7.1 mph E
Humidity15%
Visibility6.2 mi
Dew point39°
Thu, 1387° / 63°1.08
87 °
Harmony, Thursday, 13 August
Heavy rain. High 87°, low 63°.
Pressure29.77 inHg
Wind15.5 mph E
Humidity33%
Visibility—
Dew point50°
Fri, 1481° / 64°0.12
81 °
Harmony, Friday, 14 August
Light rain. High 81°, low 64°.
Pressure29.97 inHg
Wind8.1 mph SE
Humidity85%
Visibility—
Dew point62°
Sat, 1583° / 63°0.21
83 °
Harmony, Saturday, 15 August
Light rain. High 83°, low 63°.
Pressure30.09 inHg
Wind9.8 mph W
Humidity50%
Visibility—
Dew point56°
Sun, 1685° / 60°0.02
85 °
Harmony, Sunday, 16 August
Light rain. High 85°, low 60°.
Pressure30.03 inHg
Wind10.2 mph S
Humidity43%
Visibility—
Dew point53°
Mon, 1788° / 65°0.01
88 °
Harmony, Monday, 17 August
Light rain. High 88°, low 65°.
Pressure29.97 inHg
Wind14.8 mph SW
Humidity23%
Visibility—
Dew point43°
Tue, 1897° / 65°0
97 °
Harmony, Tuesday, 18 August
Clear. High 97°, low 65°.
Pressure29.91 inHg
Wind10.7 mph SE
Humidity21%
Visibility—
Dew point43°
Wed, 1983° / 64°0.18
83 °
Harmony, Wednesday, 19 August
Light rain. High 83°, low 64°.
Pressure30.00 inHg
Wind13.5 mph N
Humidity36%
Visibility—
Dew point49°
Thu, 2081° / 64°0.16
81 °
Harmony, Thursday, 20 August
Light rain. High 81°, low 64°.
Pressure29.91 inHg
Wind10.8 mph N
Humidity40%
Visibility—
Dew point52°
Fri, 2191° / 61°0.03
91 °
Harmony, Friday, 21 August
Light rain. High 91°, low 61°.
Pressure29.74 inHg
Wind20 mph NE
Humidity34%
Visibility—
Dew point49°
Sat, 2293° / 63°0
93 °
Harmony, Saturday, 22 August
Mostly clear. High 93°, low 63°.
Pressure29.85 inHg
Wind13 mph SE
Humidity20%
Visibility—
Dew point38°
Sun, 2394° / 63°0
94 °
Harmony, Sunday, 23 August
Mostly clear. High 94°, low 63°.
Pressure29.83 inHg
Wind12 mph S
Humidity20%
Visibility—
Dew point39°
Mon, 2493° / 70°0
93 °
Harmony, Monday, 24 August
Overcast. High 93°, low 70°.
Pressure29.83 inHg
Wind4.4 mph NW
Humidity14%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2582° / 56°0.03
82 °
Harmony, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high82°
Average low56°
Average precipitation0.03 in
Chance of precipitation13%
Record high94° (2011)
Record low46° (1972)
Wed, 2682° / 56°0.04
82 °
Harmony, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high82°
Average low56°
Average precipitation0.04 in
Chance of precipitation27%
Record high92° (1988)
Record low49° (1992)
Thu, 2781° / 57°0.06
81 °
Harmony, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high81°
Average low57°
Average precipitation0.06 in
Chance of precipitation18%
Record high93° (2012)
Record low43° (1992)
Fri, 2882° / 56°0.02
82 °
Harmony, Friday, 28 August
Climate normal for this date — 60-year average.
Average high82°
Average low56°
Average precipitation0.02 in
Chance of precipitation17%
Record high93° (2011)
Record low42° (2004)
Sat, 2982° / 55°0.03
82 °
Harmony, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high82°
Average low55°
Average precipitation0.03 in
Chance of precipitation20%
Record high94° (2012)
Record low46° (2004)
Sun, 3082° / 55°0.05
82 °
Harmony, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high82°
Average low55°
Average precipitation0.05 in
Chance of precipitation13%
Record high93° (1990)
Record low45° (1964)
Mon, 3181° / 55°0.04
81 °
Harmony, Monday, 31 August
Climate normal for this date — 60-year average.
Average high81°
Average low55°
Average precipitation0.04 in
Chance of precipitation20%
Record high93° (1960)
Record low45° (1968)
Tue, 0181° / 54°0.05
81 °
Harmony, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high81°
Average low54°
Average precipitation0.05 in
Chance of precipitation20%
Record high94° (2019)
Record low42° (1965)
Wed, 0280° / 54°0.04
80 °
Harmony, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high80°
Average low54°
Average precipitation0.04 in
Chance of precipitation18%
Record high98° (2019)
Record low42° (1974)
Thu, 0381° / 54°0.02
81 °
Harmony, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high81°
Average low54°
Average precipitation0.02 in
Chance of precipitation12%
Record high95° (2017)
Record low40° (1961)
Fri, 0480° / 53°0.03
80 °
Harmony, Friday, 4 September
Climate normal for this date — 60-year average.
Average high80°
Average low53°
Average precipitation0.03 in
Chance of precipitation15%
Record high93° (2022)
Record low42° (1974)
Sat, 0581° / 53°0.03
81 °
Harmony, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high81°
Average low53°
Average precipitation0.03 in
Chance of precipitation13%
Record high98° (2022)
Record low43° (1968)
Sun, 0680° / 53°0.03
80 °
Harmony, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high80°
Average low53°
Average precipitation0.03 in
Chance of precipitation12%
Record high98° (2020)
Record low42° (1968)
Mon, 0779° / 53°0.03
79 °
Harmony, Monday, 7 September
Climate normal for this date — 60-year average.
Average high79°
Average low53°
Average precipitation0.03 in
Chance of precipitation23%
Record high95° (2022)
Record low44° (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 Harmony, 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 Harmony, 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.