Monthly outlook for Durham, CO: average high 94.7°, average low 70.4°. That is 3.6° above the climate normal for August. Precipitation is expected on 5 days (about 0.6 inches), against a normal of 6 days and 1.6 inches. The warmest day looks like 8 August (101.8°), the coolest 10 August (65.1°).
94.7°/70.4°
Average high / low
+3.6°
Above normal
5 / 6
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
94.6°
88.9°
+3.2°
18 August – 27 August
94.8°
86.5°
+4.6°
28 August – 6 September
at normal
85.7°
—
August records over 66 years
102.4°19 August 2020All-time high
46°27 August 1992All-time low
Climate normals and records are computed from the nearest reference point — Grand Junction (2 mi).
Sun, 09101° / 67°0.02
101 °
Durham, Sunday, 9 August
Light rain. High 101°, low 67°.
Pressure29.85 inHg
Wind3.2 mph N
Humidity16%
Visibility6.2 mi
Dew point38°
Mon, 1098° / 65°0
98 °
Durham, Monday, 10 August
Overcast. High 98°, low 65°.
Pressure29.88 inHg
Wind5.9 mph N
Humidity24%
Visibility6.2 mi
Dew point47°
Tue, 11100° / 71°0
100 °
Durham, Tuesday, 11 August
Overcast. High 100°, low 71°.
Pressure29.88 inHg
Wind3.9 mph NE
Humidity24%
Visibility6.2 mi
Dew point48°
Wed, 1294° / 74°0.02
94 °
Durham, Wednesday, 12 August
Light rain. High 94°, low 74°.
Pressure29.80 inHg
Wind6.3 mph N
Humidity23%
Visibility6.2 mi
Dew point47°
Thu, 1396° / 69°0
96 °
Durham, Thursday, 13 August
Overcast. High 96°, low 69°.
Pressure29.83 inHg
Wind15 mph SE
Humidity29%
Visibility—
Dew point49°
Fri, 1485° / 71°0.07
85 °
Durham, Friday, 14 August
Light rain. High 85°, low 71°.
Pressure30.06 inHg
Wind10.9 mph E
Humidity65%
Visibility—
Dew point60°
Sat, 1592° / 67°0.15
92 °
Durham, Saturday, 15 August
Light rain. High 92°, low 67°.
Pressure30.03 inHg
Wind11.8 mph NW
Humidity37%
Visibility—
Dew point54°
Sun, 1690° / 75°0.02
90 °
Durham, Sunday, 16 August
Light rain. High 90°, low 75°.
Pressure30.09 inHg
Wind13.3 mph SE
Humidity33%
Visibility—
Dew point50°
Mon, 1788° / 70°0.09
88 °
Durham, Monday, 17 August
Light rain. High 88°, low 70°.
Pressure30.18 inHg
Wind8.8 mph SE
Humidity50%
Visibility—
Dew point56°
Tue, 1892° / 68°0.04
92 °
Durham, Tuesday, 18 August
Light rain. High 92°, low 68°.
Pressure30.03 inHg
Wind17.4 mph S
Humidity30%
Visibility—
Dew point50°
Wed, 1987° / 67°0.15
87 °
Durham, Wednesday, 19 August
Light rain. High 87°, low 67°.
Pressure30.00 inHg
Wind7.8 mph SE
Humidity36%
Visibility—
Dew point52°
Thu, 2093° / 69°0.05
93 °
Durham, Thursday, 20 August
Light rain. High 93°, low 69°.
Pressure29.97 inHg
Wind9.5 mph W
Humidity36%
Visibility—
Dew point53°
Fri, 2199° / 75°0
99 °
Durham, Friday, 21 August
Mostly clear. High 99°, low 75°.
Pressure29.88 inHg
Wind10.8 mph W
Humidity21%
Visibility—
Dew point45°
Sat, 2299° / 75°0
99 °
Durham, Saturday, 22 August
Partly cloudy. High 99°, low 75°.
Pressure29.91 inHg
Wind11.5 mph NW
Humidity22%
Visibility—
Dew point46°
Sun, 2398° / 74°0
98 °
Durham, Sunday, 23 August
Mostly clear. High 98°, low 74°.
Pressure29.94 inHg
Wind8.5 mph N
Humidity27%
Visibility—
Dew point49°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2486° / 60°0.09
86 °
Durham, Monday, 24 August
Climate normal for this date — 60-year average.
Average high86°
Average low60°
Average precipitation0.09 in
Chance of precipitation30%
Record high99° (2020)
Record low47° (1968)
Tue, 2586° / 60°0.13
86 °
Durham, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high86°
Average low60°
Average precipitation0.13 in
Chance of precipitation40%
Record high99° (2019)
Record low51° (1962)
Wed, 2686° / 60°0.12
86 °
Durham, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high86°
Average low60°
Average precipitation0.12 in
Chance of precipitation43%
Record high97° (2020)
Record low51° (1992)
Thu, 2786° / 60°0.11
86 °
Durham, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high86°
Average low60°
Average precipitation0.11 in
Chance of precipitation47%
Record high99° (2020)
Record low46° (1992)
Fri, 2886° / 59°0.08
86 °
Durham, Friday, 28 August
Climate normal for this date — 60-year average.
Average high86°
Average low59°
Average precipitation0.08 in
Chance of precipitation37%
Record high96° (2017)
Record low47° (1964)
Sat, 2987° / 59°0.06
87 °
Durham, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high87°
Average low59°
Average precipitation0.06 in
Chance of precipitation30%
Record high96° (2021)
Record low50° (2004)
Sun, 3087° / 58°0.04
87 °
Durham, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high87°
Average low58°
Average precipitation0.04 in
Chance of precipitation30%
Record high97° (2023)
Record low50° (1964)
Mon, 3186° / 59°0.09
86 °
Durham, Monday, 31 August
Climate normal for this date — 60-year average.
Average high86°
Average low59°
Average precipitation0.09 in
Chance of precipitation43%
Record high98° (2019)
Record low52° (1975)
Tue, 0186° / 58°0.08
86 °
Durham, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high86°
Average low58°
Average precipitation0.08 in
Chance of precipitation35%
Record high98° (2019)
Record low46° (1965)
Wed, 0286° / 58°0.05
86 °
Durham, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high86°
Average low58°
Average precipitation0.05 in
Chance of precipitation17%
Record high98° (2019)
Record low47° (1961)
Thu, 0386° / 58°0.07
86 °
Durham, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high86°
Average low58°
Average precipitation0.07 in
Chance of precipitation27%
Record high98° (2022)
Record low42° (1961)
Fri, 0485° / 57°0.08
85 °
Durham, Friday, 4 September
Climate normal for this date — 60-year average.
Average high85°
Average low57°
Average precipitation0.08 in
Chance of precipitation32%
Record high98° (2017)
Record low40° (1961)
Sat, 0585° / 57°0.08
85 °
Durham, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high85°
Average low57°
Average precipitation0.08 in
Chance of precipitation32%
Record high102° (2022)
Record low43° (1961)
Sun, 0684° / 57°0.1
84 °
Durham, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high84°
Average low57°
Average precipitation0.1 in
Chance of precipitation33%
Record high102° (2022)
Record low46° (1961)
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 Durham, 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 Durham, 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.