Monthly outlook for Ontario Center, NY: average high 74.9°, average low 64.8°. That is 1° below the climate normal for August. Precipitation is expected on 5 days (about 1.1 inches), against a normal of 6 days and 1.9 inches. The warmest day looks like 9 August (84.8°), the coolest 16 August (57.4°).
74.9°/64.8°
Average high / low
−1°
Below normal
5 / 6
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
73.6°
77.4°
-2.1°
19 August – 28 August
77.2°
76°
+0.7°
29 August – 7 September
at normal
74.6°
—
August records over 66 years
93.9°14 August 2002All-time high
46.9°30 August 1965All-time low
Climate normals and records are computed from the nearest reference point — Sodus (13 mi).
Mon, 1081° / 67°0.26
81 °
Ontario Center, Monday, 10 August
Rain. High 81°, low 67°.
Pressure29.91 inHg
Wind10.8 mph S
Humidity89%
Visibility6.2 mi
Dew point66°
Tue, 1177° / 68°0
77 °
Ontario Center, Tuesday, 11 August
Light rain. High 77°, low 68°.
Pressure29.91 inHg
Wind10.5 mph NW
Humidity65%
Visibility6.2 mi
Dew point62°
Wed, 1276° / 65°0.09
76 °
Ontario Center, Wednesday, 12 August
Light rain. High 76°, low 65°.
Pressure29.80 inHg
Wind5.8 mph E
Humidity50%
Visibility6.2 mi
Dew point56°
Thu, 1371° / 65°0.02
71 °
Ontario Center, Thursday, 13 August
Light rain. High 71°, low 65°.
Pressure29.85 inHg
Wind24.9 mph NW
Humidity51%
Visibility—
Dew point51°
Fri, 1470° / 60°0
70 °
Ontario Center, Friday, 14 August
Light rain. High 70°, low 60°.
Pressure30.09 inHg
Wind17.2 mph N
Humidity51%
Visibility—
Dew point48°
Sat, 1568° / 59°0
68 °
Ontario Center, Saturday, 15 August
Clear. High 68°, low 59°.
Pressure30.27 inHg
Wind13.4 mph N
Humidity51%
Visibility—
Dew point47°
Sun, 1666° / 57°0
66 °
Ontario Center, Sunday, 16 August
Overcast. High 66°, low 57°.
Pressure30.15 inHg
Wind8 mph SW
Humidity56%
Visibility—
Dew point49°
Mon, 1771° / 64°0.01
71 °
Ontario Center, Monday, 17 August
Light rain. High 71°, low 64°.
Pressure30.00 inHg
Wind6.8 mph N
Humidity66%
Visibility—
Dew point58°
Tue, 1870° / 63°0
70 °
Ontario Center, Tuesday, 18 August
Partly cloudy. High 70°, low 63°.
Pressure30.09 inHg
Wind9.5 mph N
Humidity68%
Visibility—
Dew point58°
Wed, 1976° / 60°0
76 °
Ontario Center, Wednesday, 19 August
Overcast. High 76°, low 60°.
Pressure30.09 inHg
Wind10 mph NE
Humidity51%
Visibility—
Dew point55°
Thu, 2085° / 66°0
85 °
Ontario Center, Thursday, 20 August
Overcast. High 85°, low 66°.
Pressure29.91 inHg
Wind8.7 mph S
Humidity49%
Visibility—
Dew point60°
Fri, 2181° / 74°0.27
81 °
Ontario Center, Friday, 21 August
Rain. High 81°, low 74°.
Pressure29.77 inHg
Wind15.7 mph N
Humidity82%
Visibility—
Dew point73°
Sat, 2272° / 67°0
72 °
Ontario Center, Saturday, 22 August
Partly cloudy. High 72°, low 67°.
Pressure30.00 inHg
Wind10.8 mph N
Humidity59%
Visibility—
Dew point56°
Sun, 2378° / 67°0.15
78 °
Ontario Center, Sunday, 23 August
Light rain. High 78°, low 67°.
Pressure29.94 inHg
Wind11.9 mph NE
Humidity64%
Visibility—
Dew point62°
Mon, 2472° / 66°0.3
72 °
Ontario Center, Monday, 24 August
Light rain. High 72°, low 66°.
Pressure30.09 inHg
Wind17.7 mph NE
Humidity63%
Visibility—
Dew point57°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2576° / 62°0.12
76 °
Ontario Center, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high76°
Average low62°
Average precipitation0.12 in
Chance of precipitation32%
Record high90° (2021)
Record low52° (1971)
Wed, 2677° / 63°0.07
77 °
Ontario Center, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high77°
Average low63°
Average precipitation0.07 in
Chance of precipitation33%
Record high87° (2021)
Record low52° (1989)
Thu, 2776° / 63°0.13
76 °
Ontario Center, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high76°
Average low63°
Average precipitation0.13 in
Chance of precipitation42%
Record high92° (2024)
Record low51° (2017)
Fri, 2876° / 64°0.17
76 °
Ontario Center, Friday, 28 August
Climate normal for this date — 60-year average.
Average high76°
Average low64°
Average precipitation0.17 in
Chance of precipitation50%
Record high92° (2018)
Record low51° (1986)
Sat, 2975° / 63°0.12
75 °
Ontario Center, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high75°
Average low63°
Average precipitation0.12 in
Chance of precipitation40%
Record high93° (2022)
Record low48° (1982)
Sun, 3075° / 62°0.09
75 °
Ontario Center, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high75°
Average low62°
Average precipitation0.09 in
Chance of precipitation33%
Record high88° (1991)
Record low47° (1965)
Mon, 3175° / 62°0.13
75 °
Ontario Center, Monday, 31 August
Climate normal for this date — 60-year average.
Average high75°
Average low62°
Average precipitation0.13 in
Chance of precipitation37%
Record high89° (1962)
Record low50° (1976)
Tue, 0174° / 61°0.06
74 °
Ontario Center, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high74°
Average low61°
Average precipitation0.06 in
Chance of precipitation25%
Record high90° (2010)
Record low51° (2025)
Wed, 0275° / 61°0.13
75 °
Ontario Center, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high75°
Average low61°
Average precipitation0.13 in
Chance of precipitation37%
Record high87° (2010)
Record low47° (2017)
Thu, 0375° / 61°0.1
75 °
Ontario Center, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high75°
Average low61°
Average precipitation0.1 in
Chance of precipitation37%
Record high91° (2018)
Record low49° (1976)
Fri, 0474° / 62°0.11
74 °
Ontario Center, Friday, 4 September
Climate normal for this date — 60-year average.
Average high74°
Average low62°
Average precipitation0.11 in
Chance of precipitation35%
Record high89° (1973)
Record low50° (1987)
Sat, 0574° / 61°0.11
74 °
Ontario Center, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high74°
Average low61°
Average precipitation0.11 in
Chance of precipitation30%
Record high91° (2018)
Record low50° (1963)
Sun, 0674° / 61°0.1
74 °
Ontario Center, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high74°
Average low61°
Average precipitation0.1 in
Chance of precipitation33%
Record high89° (2023)
Record low49° (2000)
Mon, 0774° / 60°0.13
74 °
Ontario Center, Monday, 7 September
Climate normal for this date — 60-year average.
Average high74°
Average low60°
Average precipitation0.13 in
Chance of precipitation38%
Record high92° (2007)
Record low49° (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 Ontario Center, NY 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 Ontario Center, NY 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.