Monthly outlook for Colby, KY: average high 83.1°, average low 65.2°. That is 0.3° below the climate normal for August. Precipitation is expected on 10 days (about 2.6 inches), against a normal of 6 days and 1.8 inches. The warmest day looks like 9 August (90.8°), the coolest 16 August (54.9°).
83.1°/65.2°
Average high / low
−0.3°
Below normal
10 / 6
Wet days / normal
2.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
84.6°
83.6°
+0.5°
18 August – 27 August
80.6°
83.7°
-1.8°
28 August – 6 September
at normal
82.3°
—
August records over 66 years
101.5°16 August 2007All-time high
48.4°29 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Lexington (11 mi).
Sun, 0991° / 72°0.09
91 °
Colby, Sunday, 9 August
Light rain. High 91°, low 72°.
Pressure30.09 inHg
Wind6.7 mph S
Humidity65%
Visibility6.2 mi
Dew point72°
Mon, 1090° / 72°0
90 °
Colby, Monday, 10 August
Mostly clear. High 90°, low 72°.
Pressure30.09 inHg
Wind13 mph SW
Humidity60%
Visibility6.2 mi
Dew point71°
Tue, 1189° / 71°0.07
89 °
Colby, Tuesday, 11 August
Light rain. High 89°, low 71°.
Pressure30.00 inHg
Wind10.7 mph W
Humidity58%
Visibility6.2 mi
Dew point70°
Wed, 1290° / 66°0.63
90 °
Colby, Wednesday, 12 August
Rain. High 90°, low 66°.
Pressure29.85 inHg
Wind14.3 mph W
Humidity63%
Visibility6.2 mi
Dew point71°
Thu, 1379° / 66°0.31
79 °
Colby, Thursday, 13 August
Rain. High 79°, low 66°.
Pressure29.94 inHg
Wind13.5 mph W
Humidity93%
Visibility—
Dew point71°
Fri, 1478° / 61°0.33
78 °
Colby, Friday, 14 August
Rain. High 78°, low 61°.
Pressure30.06 inHg
Wind10.9 mph NE
Humidity64%
Visibility—
Dew point61°
Sat, 1576° / 56°0
76 °
Colby, Saturday, 15 August
Mostly clear. High 76°, low 56°.
Pressure30.27 inHg
Wind9.8 mph NE
Humidity44%
Visibility—
Dew point49°
Sun, 1680° / 55°0
80 °
Colby, Sunday, 16 August
Overcast. High 80°, low 55°.
Pressure30.24 inHg
Wind7.5 mph E
Humidity42%
Visibility—
Dew point50°
Mon, 1784° / 61°0.08
84 °
Colby, Monday, 17 August
Light rain. High 84°, low 61°.
Pressure30.09 inHg
Wind10.9 mph SW
Humidity52%
Visibility—
Dew point62°
Tue, 1880° / 70°0.22
80 °
Colby, Tuesday, 18 August
Light rain. High 80°, low 70°.
Pressure29.94 inHg
Wind11.8 mph W
Humidity73%
Visibility—
Dew point69°
Wed, 1985° / 67°0
85 °
Colby, Wednesday, 19 August
Light rain. High 85°, low 67°.
Pressure29.97 inHg
Wind6.1 mph NE
Humidity54%
Visibility—
Dew point63°
Thu, 2078° / 67°0.57
78 °
Colby, Thursday, 20 August
Rain. High 78°, low 67°.
Pressure29.91 inHg
Wind7.3 mph SE
Humidity83%
Visibility—
Dew point70°
Fri, 2182° / 66°0.2
82 °
Colby, Friday, 21 August
Light rain. High 82°, low 66°.
Pressure29.88 inHg
Wind8.1 mph W
Humidity69%
Visibility—
Dew point69°
Sat, 2283° / 65°0
83 °
Colby, Saturday, 22 August
Overcast. High 83°, low 65°.
Pressure29.88 inHg
Wind7.6 mph NE
Humidity53%
Visibility—
Dew point60°
Sun, 2374° / 58°0
74 °
Colby, Sunday, 23 August
Overcast. High 74°, low 58°.
Pressure30.09 inHg
Wind14 mph NE
Humidity48%
Visibility—
Dew point51°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2483° / 65°0.11
83 °
Colby, Monday, 24 August
Climate normal for this date — 60-year average.
Average high83°
Average low65°
Average precipitation0.11 in
Chance of precipitation25%
Record high97° (2007)
Record low55° (1997)
Tue, 2584° / 66°0.07
84 °
Colby, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high84°
Average low66°
Average precipitation0.07 in
Chance of precipitation27%
Record high95° (2023)
Record low57° (2017)
Wed, 2684° / 66°0.07
84 °
Colby, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high84°
Average low66°
Average precipitation0.07 in
Chance of precipitation28%
Record high92° (1987)
Record low55° (2025)
Thu, 2784° / 67°0.11
84 °
Colby, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.11 in
Chance of precipitation37%
Record high92° (2024)
Record low53° (2025)
Fri, 2884° / 66°0.07
84 °
Colby, Friday, 28 August
Climate normal for this date — 60-year average.
Average high84°
Average low66°
Average precipitation0.07 in
Chance of precipitation28%
Record high95° (2007)
Record low54° (1968)
Sat, 2984° / 66°0.11
84 °
Colby, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high84°
Average low66°
Average precipitation0.11 in
Chance of precipitation40%
Record high95° (2024)
Record low48° (1986)
Sun, 3083° / 65°0.14
83 °
Colby, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high83°
Average low65°
Average precipitation0.14 in
Chance of precipitation35%
Record high93° (2024)
Record low50° (1986)
Mon, 3183° / 65°0.14
83 °
Colby, Monday, 31 August
Climate normal for this date — 60-year average.
Average high83°
Average low65°
Average precipitation0.14 in
Chance of precipitation37%
Record high93° (1995)
Record low54° (2023)
Tue, 0182° / 65°0.12
82 °
Colby, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.12 in
Chance of precipitation33%
Record high95° (2011)
Record low52° (1967)
Wed, 0282° / 65°0.11
82 °
Colby, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.11 in
Chance of precipitation37%
Record high95° (2011)
Record low51° (1967)
Thu, 0382° / 65°0.16
82 °
Colby, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.16 in
Chance of precipitation37%
Record high98° (2011)
Record low53° (1967)
Fri, 0482° / 64°0.08
82 °
Colby, Friday, 4 September
Climate normal for this date — 60-year average.
Average high82°
Average low64°
Average precipitation0.08 in
Chance of precipitation25%
Record high94° (2023)
Record low51° (1997)
Sat, 0581° / 64°0.12
81 °
Colby, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.12 in
Chance of precipitation33%
Record high94° (2007)
Record low51° (1997)
Sun, 0681° / 63°0.06
81 °
Colby, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high81°
Average low63°
Average precipitation0.06 in
Chance of precipitation25%
Record high94° (1998)
Record low52° (1984)
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 Colby, KY 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 Colby, KY 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.