Monthly outlook for Grier City, PA: average high 79.5°, average low 59.1°. That is 0.4° above the climate normal for August. Precipitation is expected on 3 days (about 1.3 inches), against a normal of 6 days and 2.0 inches. The warmest day looks like 23 August (88.9°), the coolest 15 August (46.7°).
79.5°/59.1°
Average high / low
+0.4°
Above normal
3 / 6
Wet days / normal
1.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
76.5°
79.5°
-1.7°
19 August – 28 August
84.7°
78.2°
+3.6°
29 August – 7 September
at normal
76.6°
—
August records over 66 years
94.8°2 August 2006All-time high
44.8°29 August 1982All-time low
Climate normals and records are computed from the nearest reference point — Conyngham (11 mi).
Mon, 1079° / 64°0
79 °
Grier City, Monday, 10 August
Light rain. High 79°, low 64°.
Pressure29.97 inHg
Wind7.4 mph W
Humidity45%
Visibility6.2 mi
Dew point60°
Tue, 1182° / 64°0.93
82 °
Grier City, Tuesday, 11 August
Heavy rain. High 82°, low 64°.
Pressure29.88 inHg
Wind10.8 mph NW
Humidity49%
Visibility6.2 mi
Dew point59°
Wed, 1279° / 61°0.01
79 °
Grier City, Wednesday, 12 August
Light rain. High 79°, low 61°.
Pressure29.77 inHg
Wind7.9 mph NW
Humidity59%
Visibility6.2 mi
Dew point62°
Thu, 1376° / 57°0
76 °
Grier City, Thursday, 13 August
Mostly clear. High 76°, low 57°.
Pressure29.80 inHg
Wind12.1 mph NW
Humidity34%
Visibility—
Dew point44°
Fri, 1470° / 48°0
70 °
Grier City, Friday, 14 August
Clear. High 70°, low 48°.
Pressure30.03 inHg
Wind10.7 mph NW
Humidity39%
Visibility—
Dew point42°
Sat, 1571° / 47°0
71 °
Grier City, Saturday, 15 August
Mostly clear. High 71°, low 47°.
Pressure30.12 inHg
Wind12.3 mph NW
Humidity38%
Visibility—
Dew point41°
Sun, 1673° / 48°0
73 °
Grier City, Sunday, 16 August
Overcast. High 73°, low 48°.
Pressure30.15 inHg
Wind4.5 mph NW
Humidity37%
Visibility—
Dew point43°
Mon, 1776° / 55°0.01
76 °
Grier City, Monday, 17 August
Light rain. High 76°, low 55°.
Pressure30.00 inHg
Wind3.5 mph SW
Humidity42%
Visibility—
Dew point49°
Tue, 1877° / 58°0.03
77 °
Grier City, Tuesday, 18 August
Light rain. High 77°, low 58°.
Pressure30.03 inHg
Wind3.9 mph W
Humidity50%
Visibility—
Dew point55°
Wed, 1978° / 59°0
78 °
Grier City, Wednesday, 19 August
Partly cloudy. High 78°, low 59°.
Pressure30.09 inHg
Wind5.2 mph S
Humidity49%
Visibility—
Dew point55°
Thu, 2083° / 59°0
83 °
Grier City, Thursday, 20 August
Partly cloudy. High 83°, low 59°.
Pressure30.03 inHg
Wind7.4 mph S
Humidity42%
Visibility—
Dew point55°
Fri, 2186° / 63°0.17
86 °
Grier City, Friday, 21 August
Rain. High 86°, low 63°.
Pressure29.85 inHg
Wind8.2 mph S
Humidity54%
Visibility—
Dew point63°
Sat, 2284° / 65°0
84 °
Grier City, Saturday, 22 August
Mostly clear. High 84°, low 65°.
Pressure29.94 inHg
Wind8.1 mph N
Humidity37%
Visibility—
Dew point53°
Sun, 2389° / 62°0
89 °
Grier City, Sunday, 23 August
Clear. High 89°, low 62°.
Pressure29.94 inHg
Wind5.8 mph SW
Humidity36%
Visibility—
Dew point56°
Mon, 2488° / 70°0.17
88 °
Grier City, Monday, 24 August
Light rain. High 88°, low 70°.
Pressure29.97 inHg
Wind8.9 mph W
Humidity46%
Visibility—
Dew point62°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2578° / 61°0.07
78 °
Grier City, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.07 in
Chance of precipitation25%
Record high91° (2007)
Record low50° (1971)
Wed, 2679° / 62°0.06
79 °
Grier City, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.06 in
Chance of precipitation18%
Record high90° (1993)
Record low51° (1963)
Thu, 2779° / 63°0.16
79 °
Grier City, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.16 in
Chance of precipitation38%
Record high91° (1993)
Record low50° (2025)
Fri, 2879° / 63°0.21
79 °
Grier City, Friday, 28 August
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.21 in
Chance of precipitation42%
Record high90° (1973)
Record low50° (1968)
Sat, 2978° / 63°0.19
78 °
Grier City, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high78°
Average low63°
Average precipitation0.19 in
Chance of precipitation37%
Record high89° (2010)
Record low45° (1982)
Sun, 3078° / 61°0.06
78 °
Grier City, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.06 in
Chance of precipitation23%
Record high91° (1991)
Record low47° (1965)
Mon, 3177° / 61°0.08
77 °
Grier City, Monday, 31 August
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.08 in
Chance of precipitation25%
Record high90° (2010)
Record low47° (1976)
Tue, 0176° / 60°0.18
76 °
Grier City, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.18 in
Chance of precipitation28%
Record high91° (2010)
Record low48° (1967)
Wed, 0276° / 60°0.12
76 °
Grier City, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.12 in
Chance of precipitation42%
Record high92° (2010)
Record low46° (2017)
Thu, 0377° / 60°0.1
77 °
Grier City, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high77°
Average low60°
Average precipitation0.1 in
Chance of precipitation28%
Record high90° (2010)
Record low46° (1967)
Fri, 0476° / 60°0.15
76 °
Grier City, Friday, 4 September
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.15 in
Chance of precipitation28%
Record high90° (2008)
Record low48° (1997)
Sat, 0576° / 60°0.09
76 °
Grier City, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.09 in
Chance of precipitation32%
Record high89° (2023)
Record low48° (1974)
Sun, 0676° / 59°0.18
76 °
Grier City, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high76°
Average low59°
Average precipitation0.18 in
Chance of precipitation35%
Record high90° (2023)
Record low46° (1984)
Mon, 0776° / 59°0.1
76 °
Grier City, Monday, 7 September
Climate normal for this date — 60-year average.
Average high76°
Average low59°
Average precipitation0.1 in
Chance of precipitation23%
Record high89° (2015)
Record low43° (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 Grier City, PA 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 Grier City, PA 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.