Monthly outlook for Petroleum, OH: average high 64.4°, average low 47.8°. That is 1.8° above the climate normal for October. Precipitation is expected on 5 days (about 2.6 inches), against a normal of 6 days and 1.7 inches. The warmest day looks like 13 October (78.5°), the coolest 19 October (31.6°).
64.4°/47.8°
Average high / low
+1.8°
Above normal
5 / 6
Wet days / normal
2.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 October – 18 October
66.1°
62.5°
+2°
19 October – 28 October
61.6°
58.2°
+1.9°
29 October – 7 November
at normal
55.1°
—
October records over 66 years
86.4°1 October 2019All-time high
26.6°20 October 1972All-time low
Climate normals and records are computed from the nearest reference point — Youngstown (9 mi).
Sat, 1072° / 46°0
72 °
Petroleum, Saturday, 10 October
Overcast. High 72°, low 46°.
Pressure30.33 inHg
Wind8.7 mph SE
Humidity50%
Visibility6.2 mi
Dew point47°
Sun, 1168° / 49°1.15
68 °
Petroleum, Sunday, 11 October
Heavy rain. High 68°, low 49°.
Pressure29.97 inHg
Wind11.4 mph E
Humidity93%
Visibility6.2 mi
Dew point59°
Mon, 1273° / 59°0
73 °
Petroleum, Monday, 12 October
Overcast. High 73°, low 59°.
Pressure29.94 inHg
Wind7 mph NW
Humidity77%
Visibility6.2 mi
Dew point59°
Tue, 1378° / 63°0.02
78 °
Petroleum, Tuesday, 13 October
Light rain. High 78°, low 63°.
Pressure29.80 inHg
Wind9.4 mph SW
Humidity69%
Visibility6.2 mi
Dew point63°
Wed, 1464° / 59°0
64 °
Petroleum, Wednesday, 14 October
Light rain. High 64°, low 59°.
Pressure30.03 inHg
Wind8.2 mph NW
Humidity69%
Visibility—
Dew point53°
Thu, 1560° / 53°0.02
60 °
Petroleum, Thursday, 15 October
Light rain. High 60°, low 53°.
Pressure30.30 inHg
Wind11 mph N
Humidity53%
Visibility—
Dew point42°
Fri, 1669° / 54°0.16
69 °
Petroleum, Friday, 16 October
Light rain. High 69°, low 54°.
Pressure29.77 inHg
Wind12.8 mph SW
Humidity90%
Visibility—
Dew point64°
Sat, 1760° / 40°0.08
60 °
Petroleum, Saturday, 17 October
Light rain. High 60°, low 40°.
Pressure29.94 inHg
Wind14.8 mph W
Humidity48%
Visibility—
Dew point30°
Sun, 1848° / 33°0.04
48 °
Petroleum, Sunday, 18 October
Light snow. High 48°, low 33°.
Pressure30.39 inHg
Wind9.3 mph N
Humidity36%
Visibility—
Dew point20°
Mon, 1956° / 32°0
56 °
Petroleum, Monday, 19 October
Mostly clear. High 56°, low 32°.
Pressure30.42 inHg
Wind4.5 mph N
Humidity35%
Visibility—
Dew point25°
Tue, 2060° / 37°0
60 °
Petroleum, Tuesday, 20 October
Overcast. High 60°, low 37°.
Pressure30.39 inHg
Wind10.3 mph SE
Humidity36%
Visibility—
Dew point30°
Wed, 2163° / 40°0
63 °
Petroleum, Wednesday, 21 October
Partly cloudy. High 63°, low 40°.
Pressure30.33 inHg
Wind10.2 mph S
Humidity41%
Visibility—
Dew point36°
Thu, 2266° / 50°0.48
66 °
Petroleum, Thursday, 22 October
Rain. High 66°, low 50°.
Pressure30.03 inHg
Wind15.3 mph SE
Humidity57%
Visibility—
Dew point48°
Fri, 2362° / 54°0.64
62 °
Petroleum, Friday, 23 October
Rain. High 62°, low 54°.
Pressure29.85 inHg
Wind11.2 mph SE
Humidity75%
Visibility—
Dew point54°
Sat, 2463° / 54°0
63 °
Petroleum, Saturday, 24 October
Overcast. High 63°, low 54°.
Pressure29.94 inHg
Wind8.9 mph SW
Humidity61%
Visibility—
Dew point48°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2558° / 44°0.09
58 °
Petroleum, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high58°
Average low44°
Average precipitation0.09 in
Chance of precipitation33%
Record high79° (2012)
Record low31° (1962)
Mon, 2657° / 43°0.09
57 °
Petroleum, Monday, 26 October
Climate normal for this date — 60-year average.
Average high57°
Average low43°
Average precipitation0.09 in
Chance of precipitation30%
Record high78° (1963)
Record low29° (1962)
Tue, 2757° / 42°0.1
57 °
Petroleum, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.1 in
Chance of precipitation33%
Record high76° (1984)
Record low28° (1962)
Wed, 2856° / 42°0.12
56 °
Petroleum, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high56°
Average low42°
Average precipitation0.12 in
Chance of precipitation35%
Record high72° (2014)
Record low27° (1976)
Thu, 2955° / 40°0.13
55 °
Petroleum, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.13 in
Chance of precipitation33%
Record high73° (2024)
Record low27° (1965)
Fri, 3057° / 40°0.11
57 °
Petroleum, Friday, 30 October
Climate normal for this date — 60-year average.
Average high57°
Average low40°
Average precipitation0.11 in
Chance of precipitation27%
Record high74° (2024)
Record low29° (2008)
Sat, 3158° / 42°0.14
58 °
Petroleum, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high58°
Average low42°
Average precipitation0.14 in
Chance of precipitation35%
Record high76° (2024)
Record low27° (1988)
Sun, 0157° / 43°0.12
57 °
Petroleum, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high57°
Average low43°
Average precipitation0.12 in
Chance of precipitation47%
Record high73° (1974)
Record low29° (2023)
Mon, 0257° / 42°0.15
57 °
Petroleum, Monday, 2 November
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.15 in
Chance of precipitation43%
Record high74° (1982)
Record low28° (1993)
Tue, 0355° / 40°0.08
55 °
Petroleum, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.08 in
Chance of precipitation30%
Record high78° (1961)
Record low28° (1966)
Wed, 0454° / 40°0.11
54 °
Petroleum, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.11 in
Chance of precipitation27%
Record high75° (2003)
Record low24° (1991)
Thu, 0554° / 40°0.11
54 °
Petroleum, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.11 in
Chance of precipitation38%
Record high75° (2024)
Record low20° (1991)
Fri, 0653° / 40°0.08
53 °
Petroleum, Friday, 6 November
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.08 in
Chance of precipitation33%
Record high72° (1975)
Record low27° (1995)
Sat, 0752° / 39°0.1
52 °
Petroleum, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high52°
Average low39°
Average precipitation0.1 in
Chance of precipitation43%
Record high69° (1996)
Record low27° (1960)
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 Petroleum, OH 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 Petroleum, OH 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.