Monthly outlook for Clarion, PA: average high 58.8°, average low 42.1°. That is 0.9° above the climate normal for October. Precipitation is expected on 3 days (about 2.1 inches), against a normal of 6 days and 1.8 inches. The warmest day looks like 13 October (77.2°), the coolest 19 October (28.1°).
58.8°/42.1°
Average high / low
+0.9°
Above normal
3 / 6
Wet days / normal
2.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 October – 19 October
60.4°
58.3°
+1.2°
20 October – 29 October
55.9°
54.4°
+0.9°
30 October – 8 November
at normal
51.3°
—
October records over 66 years
82.8°1 October 2019All-time high
22.3°20 October 1972All-time low
Climate normals and records are computed from the nearest reference point — Washington (11 mi).
Sun, 1163° / 49°1.02
63 °
Clarion, Sunday, 11 October
Rain. High 63°, low 49°.
Pressure30.06 inHg
Wind13.7 mph SE
Humidity98%
Visibility1.9 mi
Dew point56°
Mon, 1270° / 51°0
70 °
Clarion, Monday, 12 October
Overcast. High 70°, low 51°.
Pressure29.94 inHg
Wind8.9 mph NW
Humidity77%
Visibility6.2 mi
Dew point58°
Tue, 1377° / 57°0
77 °
Clarion, Tuesday, 13 October
Clear. High 77°, low 57°.
Pressure29.83 inHg
Wind10.4 mph SW
Humidity74%
Visibility6.2 mi
Dew point63°
Wed, 1469° / 58°0.2
69 °
Clarion, Wednesday, 14 October
Light rain. High 69°, low 58°.
Pressure29.97 inHg
Wind6.8 mph W
Humidity91%
Visibility6.2 mi
Dew point63°
Thu, 1560° / 51°0
60 °
Clarion, Thursday, 15 October
Partly cloudy. High 60°, low 51°.
Pressure30.27 inHg
Wind9.1 mph N
Humidity57%
Visibility—
Dew point43°
Fri, 1663° / 51°0.84
63 °
Clarion, Friday, 16 October
Rain. High 63°, low 51°.
Pressure29.83 inHg
Wind14 mph SW
Humidity94%
Visibility—
Dew point58°
Sat, 1750° / 38°0.01
50 °
Clarion, Saturday, 17 October
Light rain. High 50°, low 38°.
Pressure29.91 inHg
Wind12.6 mph W
Humidity48%
Visibility—
Dew point30°
Sun, 1840° / 30°0.03
40 °
Clarion, Sunday, 18 October
Snow. High 40°, low 30°.
Pressure30.27 inHg
Wind12.8 mph NW
Humidity62%
Visibility—
Dew point27°
Mon, 1947° / 28°0
47 °
Clarion, Monday, 19 October
Clear. High 47°, low 28°.
Pressure30.62 inHg
Wind8 mph N
Humidity39%
Visibility—
Dew point21°
Tue, 2051° / 30°0
51 °
Clarion, Tuesday, 20 October
Overcast. High 51°, low 30°.
Pressure30.50 inHg
Wind4 mph E
Humidity32%
Visibility—
Dew point20°
Wed, 2155° / 32°0
55 °
Clarion, Wednesday, 21 October
Clear. High 55°, low 32°.
Pressure30.42 inHg
Wind5.2 mph SE
Humidity40%
Visibility—
Dew point28°
Thu, 2257° / 36°0
57 °
Clarion, Thursday, 22 October
Overcast. High 57°, low 36°.
Pressure30.45 inHg
Wind7.3 mph SE
Humidity48%
Visibility—
Dew point35°
Fri, 2358° / 38°0
58 °
Clarion, Friday, 23 October
Overcast. High 58°, low 38°.
Pressure30.27 inHg
Wind10 mph SE
Humidity56%
Visibility—
Dew point40°
Sat, 2458° / 41°0
58 °
Clarion, Saturday, 24 October
Overcast. High 58°, low 41°.
Pressure30.21 inHg
Wind10.6 mph SE
Humidity53%
Visibility—
Dew point38°
Sun, 2556° / 41°0
56 °
Clarion, Sunday, 25 October
Overcast. High 56°, low 41°.
Pressure30.12 inHg
Wind9.3 mph E
Humidity43%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2654° / 40°0.11
54 °
Clarion, Monday, 26 October
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.11 in
Chance of precipitation37%
Record high75° (1963)
Record low28° (1962)
Tue, 2754° / 40°0.13
54 °
Clarion, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.13 in
Chance of precipitation38%
Record high72° (1963)
Record low24° (1988)
Wed, 2853° / 38°0.11
53 °
Clarion, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.11 in
Chance of precipitation43%
Record high69° (1971)
Record low25° (1976)
Thu, 2952° / 38°0.16
52 °
Clarion, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.16 in
Chance of precipitation40%
Record high69° (1971)
Record low24° (1965)
Fri, 3053° / 38°0.1
53 °
Clarion, Friday, 30 October
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.1 in
Chance of precipitation30%
Record high71° (2024)
Record low25° (2011)
Sat, 3154° / 39°0.14
54 °
Clarion, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.14 in
Chance of precipitation37%
Record high74° (2024)
Record low23° (2002)
Sun, 0154° / 40°0.13
54 °
Clarion, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.13 in
Chance of precipitation47%
Record high69° (1974)
Record low28° (2002)
Mon, 0253° / 39°0.16
53 °
Clarion, Monday, 2 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.16 in
Chance of precipitation45%
Record high71° (1982)
Record low26° (1993)
Tue, 0352° / 37°0.08
52 °
Clarion, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.08 in
Chance of precipitation30%
Record high71° (1961)
Record low26° (1966)
Wed, 0450° / 37°0.11
50 °
Clarion, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.11 in
Chance of precipitation32%
Record high72° (2003)
Record low21° (1991)
Thu, 0550° / 37°0.12
50 °
Clarion, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.12 in
Chance of precipitation43%
Record high74° (2024)
Record low17° (1991)
Fri, 0649° / 37°0.09
49 °
Clarion, Friday, 6 November
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.09 in
Chance of precipitation40%
Record high67° (2008)
Record low24° (1995)
Sat, 0748° / 35°0.13
48 °
Clarion, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.13 in
Chance of precipitation38%
Record high67° (2008)
Record low24° (1967)
Sun, 0849° / 35°0.1
49 °
Clarion, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.1 in
Chance of precipitation33%
Record high68° (2020)
Record low23° (1971)
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 Clarion, 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 Clarion, 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.