Monthly outlook for Fort Lupton, CO: average high 92.7°, average low 64.9°. That is 5.2° above the climate normal for August. Precipitation is expected on 8 days (about 1.6 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 11 August (101.8°), the coolest 13 August (62°).
92.7°/64.9°
Average high / low
+5.2°
Above normal
8 / 4
Wet days / normal
1.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
92.7°
83.5°
+5.1°
19 August – 28 August
92.7°
83.1°
+5.3°
29 August – 7 September
at normal
81.9°
—
August records over 66 years
99.9°5 August 2025All-time high
42.1°28 August 2004All-time low
Climate normals and records are computed from the nearest reference point — Thornton (14 mi).
Mon, 1096° / 65°0.02
96 °
Fort Lupton, Monday, 10 August
Light rain. High 96°, low 65°.
Pressure29.77 inHg
Wind4.9 mph NE
Humidity13%
Visibility6.2 mi
Dew point38°
Tue, 11102° / 65°0
102 °
Fort Lupton, Tuesday, 11 August
Overcast. High 102°, low 65°.
Pressure29.77 inHg
Wind7.7 mph NE
Humidity11%
Visibility6.2 mi
Dew point36°
Wed, 1299° / 65°0.12
99 °
Fort Lupton, Wednesday, 12 August
Light rain. High 99°, low 65°.
Pressure29.74 inHg
Wind5.4 mph NE
Humidity16%
Visibility6.2 mi
Dew point40°
Thu, 1390° / 62°0.27
90 °
Fort Lupton, Thursday, 13 August
Rain. High 90°, low 62°.
Pressure29.77 inHg
Wind12.5 mph E
Humidity38%
Visibility—
Dew point52°
Fri, 1486° / 63°0.21
86 °
Fort Lupton, Friday, 14 August
Rain. High 86°, low 63°.
Pressure29.88 inHg
Wind14.1 mph SE
Humidity46%
Visibility—
Dew point55°
Sat, 1588° / 63°0.35
88 °
Fort Lupton, Saturday, 15 August
Rain. High 88°, low 63°.
Pressure30.03 inHg
Wind15.9 mph SW
Humidity40%
Visibility—
Dew point54°
Sun, 1686° / 63°0.02
86 °
Fort Lupton, Sunday, 16 August
Light rain. High 86°, low 63°.
Pressure30.06 inHg
Wind16 mph SW
Humidity43%
Visibility—
Dew point54°
Mon, 1789° / 65°0.01
89 °
Fort Lupton, Monday, 17 August
Light rain. High 89°, low 65°.
Pressure29.94 inHg
Wind25.9 mph SW
Humidity25%
Visibility—
Dew point46°
Tue, 1894° / 67°0.04
94 °
Fort Lupton, Tuesday, 18 August
Light rain. High 94°, low 67°.
Pressure29.88 inHg
Wind12.6 mph W
Humidity24%
Visibility—
Dew point45°
Wed, 1996° / 67°0.35
96 °
Fort Lupton, Wednesday, 19 August
Rain. High 96°, low 67°.
Pressure29.85 inHg
Wind11 mph S
Humidity21%
Visibility—
Dew point44°
Thu, 2095° / 64°0.04
95 °
Fort Lupton, Thursday, 20 August
Light rain. High 95°, low 64°.
Pressure29.91 inHg
Wind13 mph NE
Humidity27%
Visibility—
Dew point47°
Fri, 2196° / 65°0.11
96 °
Fort Lupton, Friday, 21 August
Light rain. High 96°, low 65°.
Pressure29.85 inHg
Wind11.2 mph S
Humidity29%
Visibility—
Dew point48°
Sat, 2288° / 66°0.06
88 °
Fort Lupton, Saturday, 22 August
Light rain. High 88°, low 66°.
Pressure29.83 inHg
Wind11.5 mph E
Humidity27%
Visibility—
Dew point46°
Sun, 2389° / 64°0.02
89 °
Fort Lupton, Sunday, 23 August
Light rain. High 89°, low 64°.
Pressure29.83 inHg
Wind10.6 mph SE
Humidity20%
Visibility—
Dew point40°
Mon, 2493° / 64°0
93 °
Fort Lupton, Monday, 24 August
Clear. High 93°, low 64°.
Pressure29.88 inHg
Wind13.4 mph SE
Humidity25%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2583° / 57°0.04
83 °
Fort Lupton, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high83°
Average low57°
Average precipitation0.04 in
Chance of precipitation18%
Record high97° (2020)
Record low46° (1972)
Wed, 2683° / 58°0.05
83 °
Fort Lupton, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high83°
Average low58°
Average precipitation0.05 in
Chance of precipitation28%
Record high94° (2020)
Record low48° (1992)
Thu, 2783° / 58°0.04
83 °
Fort Lupton, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high83°
Average low58°
Average precipitation0.04 in
Chance of precipitation15%
Record high94° (2020)
Record low44° (1992)
Fri, 2882° / 57°0.02
82 °
Fort Lupton, Friday, 28 August
Climate normal for this date — 60-year average.
Average high82°
Average low57°
Average precipitation0.02 in
Chance of precipitation20%
Record high91° (2024)
Record low42° (2004)
Sat, 2983° / 56°0.02
83 °
Fort Lupton, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high83°
Average low56°
Average precipitation0.02 in
Chance of precipitation13%
Record high93° (2012)
Record low47° (2004)
Sun, 3083° / 56°0.05
83 °
Fort Lupton, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high83°
Average low56°
Average precipitation0.05 in
Chance of precipitation20%
Record high94° (2021)
Record low47° (1968)
Mon, 3182° / 56°0.03
82 °
Fort Lupton, Monday, 31 August
Climate normal for this date — 60-year average.
Average high82°
Average low56°
Average precipitation0.03 in
Chance of precipitation15%
Record high95° (2023)
Record low46° (1968)
Tue, 0182° / 55°0.06
82 °
Fort Lupton, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high82°
Average low55°
Average precipitation0.06 in
Chance of precipitation20%
Record high97° (2023)
Record low45° (1965)
Wed, 0282° / 55°0.04
82 °
Fort Lupton, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high82°
Average low55°
Average precipitation0.04 in
Chance of precipitation22%
Record high98° (2019)
Record low41° (1974)
Thu, 0382° / 55°0.03
82 °
Fort Lupton, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high82°
Average low55°
Average precipitation0.03 in
Chance of precipitation15%
Record high93° (2017)
Record low38° (1961)
Fri, 0482° / 54°0.03
82 °
Fort Lupton, Friday, 4 September
Climate normal for this date — 60-year average.
Average high82°
Average low54°
Average precipitation0.03 in
Chance of precipitation15%
Record high94° (2022)
Record low40° (1961)
Sat, 0582° / 55°0.02
82 °
Fort Lupton, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high82°
Average low55°
Average precipitation0.02 in
Chance of precipitation17%
Record high98° (2020)
Record low42° (1968)
Sun, 0682° / 55°0.03
82 °
Fort Lupton, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high82°
Average low55°
Average precipitation0.03 in
Chance of precipitation15%
Record high98° (2020)
Record low45° (1968)
Mon, 0780° / 54°0.05
80 °
Fort Lupton, Monday, 7 September
Climate normal for this date — 60-year average.
Average high80°
Average low54°
Average precipitation0.05 in
Chance of precipitation18%
Record high97° (2022)
Record low47° (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 Fort Lupton, 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 Fort Lupton, 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.