Monthly outlook for Grassy Creek, KY: average high 90.9°, average low 67.9°. That is 4° above the climate normal for August. Precipitation is expected on 7 days (about 2.3 inches), against a normal of 6 days and 1.9 inches. The warmest day looks like 23 August (104.4°), the coolest 16 August (60.1°).
90.9°/67.9°
Average high / low
+4°
Above normal
7 / 6
Wet days / normal
2.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
86.1°
83.7°
+1.4°
19 August – 28 August
98.7°
83.8°
+8.3°
29 August – 7 September
at normal
82.2°
—
August records over 66 years
103.3°16 August 2007All-time high
49.8°29 August 1986All-time low
Climate normals and records are computed from the nearest reference point — West Liberty (5 mi).
Mon, 1095° / 71°0
95 °
Grassy Creek, Monday, 10 August
Clear. High 95°, low 71°.
Pressure30.09 inHg
Wind5.7 mph SW
Humidity54%
Visibility6.2 mi
Dew point69°
Tue, 1194° / 70°0.11
94 °
Grassy Creek, Tuesday, 11 August
Rain. High 94°, low 70°.
Pressure30.00 inHg
Wind9.4 mph SW
Humidity57%
Visibility6.2 mi
Dew point70°
Wed, 1293° / 67°1.24
93 °
Grassy Creek, Wednesday, 12 August
Heavy rain. High 93°, low 67°.
Pressure29.85 inHg
Wind12.1 mph W
Humidity50%
Visibility6.2 mi
Dew point69°
Thu, 1388° / 67°0.31
88 °
Grassy Creek, Thursday, 13 August
Rain. High 88°, low 67°.
Pressure29.94 inHg
Wind6 mph NW
Humidity49%
Visibility—
Dew point63°
Fri, 1471° / 63°0.07
71 °
Grassy Creek, Friday, 14 August
Light rain. High 71°, low 63°.
Pressure30.12 inHg
Wind9.3 mph NE
Humidity98%
Visibility—
Dew point64°
Sat, 1580° / 61°0.01
80 °
Grassy Creek, Saturday, 15 August
Light rain. High 80°, low 61°.
Pressure30.24 inHg
Wind8.5 mph NE
Humidity64%
Visibility—
Dew point57°
Sun, 1677° / 60°0.09
77 °
Grassy Creek, Sunday, 16 August
Light rain. High 77°, low 60°.
Pressure30.09 inHg
Wind6.8 mph NE
Humidity83%
Visibility—
Dew point67°
Mon, 1786° / 62°0
86 °
Grassy Creek, Monday, 17 August
Light rain. High 86°, low 62°.
Pressure30.03 inHg
Wind6.2 mph N
Humidity51%
Visibility—
Dew point60°
Tue, 1887° / 61°0
87 °
Grassy Creek, Tuesday, 18 August
Clear. High 87°, low 61°.
Pressure30.03 inHg
Wind4.9 mph NE
Humidity40%
Visibility—
Dew point56°
Wed, 1991° / 64°0
91 °
Grassy Creek, Wednesday, 19 August
Clear. High 91°, low 64°.
Pressure30.03 inHg
Wind3.6 mph E
Humidity33%
Visibility—
Dew point54°
Thu, 2099° / 70°0.04
99 °
Grassy Creek, Thursday, 20 August
Light rain. High 99°, low 70°.
Pressure29.97 inHg
Wind8.3 mph SW
Humidity39%
Visibility—
Dew point62°
Fri, 21101° / 75°0
101 °
Grassy Creek, Friday, 21 August
Partly cloudy. High 101°, low 75°.
Pressure29.85 inHg
Wind10 mph W
Humidity32%
Visibility—
Dew point63°
Sat, 22101° / 75°0
101 °
Grassy Creek, Saturday, 22 August
Overcast. High 101°, low 75°.
Pressure29.91 inHg
Wind5.1 mph NE
Humidity41%
Visibility—
Dew point68°
Sun, 23104° / 76°0.01
104 °
Grassy Creek, Sunday, 23 August
Light rain. High 104°, low 76°.
Pressure29.91 inHg
Wind3.5 mph S
Humidity32%
Visibility—
Dew point65°
Mon, 2496° / 76°0.02
96 °
Grassy Creek, Monday, 24 August
Light rain. High 96°, low 76°.
Pressure30.00 inHg
Wind6.3 mph SW
Humidity40%
Visibility—
Dew point65°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2584° / 66°0.09
84 °
Grassy Creek, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high84°
Average low66°
Average precipitation0.09 in
Chance of precipitation25%
Record high97° (2023)
Record low55° (2017)
Wed, 2684° / 66°0.08
84 °
Grassy Creek, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high84°
Average low66°
Average precipitation0.08 in
Chance of precipitation23%
Record high94° (2024)
Record low55° (2017)
Thu, 2784° / 67°0.13
84 °
Grassy Creek, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.13 in
Chance of precipitation37%
Record high96° (2024)
Record low53° (2025)
Fri, 2884° / 67°0.07
84 °
Grassy Creek, Friday, 28 August
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.07 in
Chance of precipitation27%
Record high97° (2024)
Record low52° (2025)
Sat, 2984° / 67°0.09
84 °
Grassy Creek, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.09 in
Chance of precipitation35%
Record high97° (2024)
Record low50° (1986)
Sun, 3083° / 66°0.12
83 °
Grassy Creek, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.12 in
Chance of precipitation38%
Record high98° (2024)
Record low52° (1986)
Mon, 3183° / 66°0.14
83 °
Grassy Creek, Monday, 31 August
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.14 in
Chance of precipitation35%
Record high96° (1995)
Record low55° (2023)
Tue, 0183° / 65°0.1
83 °
Grassy Creek, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high83°
Average low65°
Average precipitation0.1 in
Chance of precipitation40%
Record high96° (2011)
Record low53° (1967)
Wed, 0283° / 65°0.1
83 °
Grassy Creek, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high83°
Average low65°
Average precipitation0.1 in
Chance of precipitation40%
Record high97° (2011)
Record low51° (1967)
Thu, 0382° / 65°0.16
82 °
Grassy Creek, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.16 in
Chance of precipitation37%
Record high99° (2011)
Record low53° (1967)
Fri, 0482° / 65°0.09
82 °
Grassy Creek, Friday, 4 September
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.09 in
Chance of precipitation38%
Record high95° (1973)
Record low51° (1997)
Sat, 0581° / 64°0.11
81 °
Grassy Creek, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.11 in
Chance of precipitation38%
Record high96° (2007)
Record low51° (1997)
Sun, 0681° / 63°0.06
81 °
Grassy Creek, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high81°
Average low63°
Average precipitation0.06 in
Chance of precipitation32%
Record high94° (1998)
Record low52° (2017)
Mon, 0781° / 63°0.05
81 °
Grassy Creek, Monday, 7 September
Climate normal for this date — 60-year average.
Average high81°
Average low63°
Average precipitation0.05 in
Chance of precipitation23%
Record high94° (1998)
Record low48° (2017)
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 Grassy Creek, 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 Grassy Creek, 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.