Monthly outlook for South Onondaga, NY: average high 73.2°, average low 56°. That is 1.3° below the climate normal for August. Precipitation is expected on 6 days (about 1.0 inches), against a normal of 7 days and 2.1 inches. The warmest day looks like 9 August (83.4°), the coolest 15 August (46.8°).
73.2°/56°
Average high / low
−1.3°
Below normal
6 / 7
Wet days / normal
1.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
74.3°
76.4°
-1.2°
19 August – 28 August
71.5°
74.8°
-1.9°
29 August – 7 September
at normal
73.4°
—
August records over 66 years
93.6°9 August 2001All-time high
44.4°29 August 1982All-time low
Climate normals and records are computed from the nearest reference point — Marcellus (6 mi).
Mon, 1083° / 65°0.11
83 °
South Onondaga, Monday, 10 August
Light rain. High 83°, low 65°.
Pressure29.97 inHg
Wind5.1 mph S
Humidity90%
Visibility6.2 mi
Dew point63°
Tue, 1178° / 63°0.01
78 °
South Onondaga, Tuesday, 11 August
Light rain. High 78°, low 63°.
Pressure29.91 inHg
Wind8.7 mph NW
Humidity55%
Visibility6.2 mi
Dew point58°
Wed, 1281° / 60°0.07
81 °
South Onondaga, Wednesday, 12 August
Light rain. High 81°, low 60°.
Pressure29.80 inHg
Wind2 mph S
Humidity48%
Visibility6.2 mi
Dew point57°
Thu, 1369° / 55°0.07
69 °
South Onondaga, Thursday, 13 August
Light rain. High 69°, low 55°.
Pressure29.85 inHg
Wind19.1 mph W
Humidity50%
Visibility—
Dew point49°
Fri, 1467° / 50°0.01
67 °
South Onondaga, Friday, 14 August
Light rain. High 67°, low 50°.
Pressure30.06 inHg
Wind13.4 mph NW
Humidity46%
Visibility—
Dew point44°
Sat, 1568° / 47°0
68 °
South Onondaga, Saturday, 15 August
Clear. High 68°, low 47°.
Pressure30.24 inHg
Wind12.9 mph NW
Humidity48%
Visibility—
Dew point46°
Sun, 1667° / 52°0
67 °
South Onondaga, Sunday, 16 August
Overcast. High 67°, low 52°.
Pressure30.15 inHg
Wind5.7 mph SW
Humidity55%
Visibility—
Dew point49°
Mon, 1772° / 54°0
72 °
South Onondaga, Monday, 17 August
Overcast. High 72°, low 54°.
Pressure29.94 inHg
Wind6.6 mph N
Humidity54%
Visibility—
Dew point53°
Tue, 1875° / 54°0.01
75 °
South Onondaga, Tuesday, 18 August
Light rain. High 75°, low 54°.
Pressure29.97 inHg
Wind8 mph W
Humidity49%
Visibility—
Dew point53°
Wed, 1976° / 62°0.07
76 °
South Onondaga, Wednesday, 19 August
Light rain. High 76°, low 62°.
Pressure29.77 inHg
Wind19 mph S
Humidity65%
Visibility—
Dew point62°
Thu, 2066° / 55°0.02
66 °
South Onondaga, Thursday, 20 August
Light rain. High 66°, low 55°.
Pressure29.83 inHg
Wind12.3 mph W
Humidity86%
Visibility—
Dew point56°
Fri, 2173° / 53°0
73 °
South Onondaga, Friday, 21 August
Overcast. High 73°, low 53°.
Pressure29.88 inHg
Wind6.6 mph W
Humidity46%
Visibility—
Dew point49°
Sat, 2279° / 56°0.08
79 °
South Onondaga, Saturday, 22 August
Light rain. High 79°, low 56°.
Pressure29.85 inHg
Wind12.3 mph S
Humidity45%
Visibility—
Dew point53°
Sun, 2366° / 55°0.55
66 °
South Onondaga, Sunday, 23 August
Rain. High 66°, low 55°.
Pressure29.85 inHg
Wind16.1 mph NW
Humidity92%
Visibility—
Dew point61°
Mon, 2469° / 49°0
69 °
South Onondaga, Monday, 24 August
Clear. High 69°, low 49°.
Pressure30.21 inHg
Wind7.7 mph NW
Humidity44%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2575° / 60°0.12
75 °
South Onondaga, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high75°
Average low60°
Average precipitation0.12 in
Chance of precipitation37%
Record high89° (2007)
Record low47° (1971)
Wed, 2676° / 60°0.08
76 °
South Onondaga, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.08 in
Chance of precipitation28%
Record high85° (2021)
Record low49° (1977)
Thu, 2775° / 61°0.14
75 °
South Onondaga, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high75°
Average low61°
Average precipitation0.14 in
Chance of precipitation50%
Record high87° (1993)
Record low48° (1969)
Fri, 2875° / 61°0.22
75 °
South Onondaga, Friday, 28 August
Climate normal for this date — 60-year average.
Average high75°
Average low61°
Average precipitation0.22 in
Chance of precipitation58%
Record high90° (2018)
Record low48° (1986)
Sat, 2974° / 61°0.15
74 °
South Onondaga, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high74°
Average low61°
Average precipitation0.15 in
Chance of precipitation48%
Record high89° (2022)
Record low44° (1982)
Sun, 3074° / 59°0.14
74 °
South Onondaga, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high74°
Average low59°
Average precipitation0.14 in
Chance of precipitation38%
Record high89° (1991)
Record low45° (1965)
Mon, 3174° / 59°0.13
74 °
South Onondaga, Monday, 31 August
Climate normal for this date — 60-year average.
Average high74°
Average low59°
Average precipitation0.13 in
Chance of precipitation38%
Record high90° (1993)
Record low47° (1965)
Tue, 0173° / 58°0.06
73 °
South Onondaga, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high73°
Average low58°
Average precipitation0.06 in
Chance of precipitation30%
Record high88° (2010)
Record low47° (1971)
Wed, 0273° / 59°0.13
73 °
South Onondaga, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high73°
Average low59°
Average precipitation0.13 in
Chance of precipitation35%
Record high87° (2010)
Record low47° (1967)
Thu, 0373° / 59°0.11
73 °
South Onondaga, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high73°
Average low59°
Average precipitation0.11 in
Chance of precipitation40%
Record high89° (2010)
Record low45° (1976)
Fri, 0473° / 59°0.1
73 °
South Onondaga, Friday, 4 September
Climate normal for this date — 60-year average.
Average high73°
Average low59°
Average precipitation0.1 in
Chance of precipitation30%
Record high89° (1999)
Record low45° (1987)
Sat, 0573° / 58°0.11
73 °
South Onondaga, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high73°
Average low58°
Average precipitation0.11 in
Chance of precipitation30%
Record high89° (1973)
Record low45° (2000)
Sun, 0673° / 59°0.16
73 °
South Onondaga, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high73°
Average low59°
Average precipitation0.16 in
Chance of precipitation35%
Record high88° (2023)
Record low47° (2000)
Mon, 0773° / 58°0.14
73 °
South Onondaga, Monday, 7 September
Climate normal for this date — 60-year average.
Average high73°
Average low58°
Average precipitation0.14 in
Chance of precipitation37%
Record high91° (2007)
Record low44° (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 South Onondaga, 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 South Onondaga, 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.