Monthly outlook for Carterville, NY: average high 75.5°, average low 58.3°. That is 0.6° below the climate normal for August. Precipitation is expected on 8 days (about 2.4 inches), against a normal of 7 days and 2.4 inches. The warmest day looks like 9 August (87.3°), the coolest 22 August (48.6°).
75.5°/58.3°
Average high / low
−0.6°
Below normal
8 / 7
Wet days / normal
2.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
77.9°
77.4°
+0.3°
19 August – 28 August
71.5°
75.6°
-2.3°
29 August – 7 September
at normal
74.3°
—
August records over 66 years
95°9 August 2001All-time high
45°30 August 1965All-time low
Climate normals and records are computed from the nearest reference point — Sylvan Beach (13 mi).
Mon, 1086° / 65°0.18
86 °
Carterville, Monday, 10 August
Light rain. High 86°, low 65°.
Pressure29.94 inHg
Wind4.9 mph SW
Humidity69%
Visibility6.2 mi
Dew point64°
Tue, 1181° / 64°0
81 °
Carterville, Tuesday, 11 August
Overcast. High 81°, low 64°.
Pressure29.85 inHg
Wind7.9 mph W
Humidity51%
Visibility6.2 mi
Dew point59°
Wed, 1277° / 62°0.25
77 °
Carterville, Wednesday, 12 August
Light rain. High 77°, low 62°.
Pressure29.74 inHg
Wind4.3 mph S
Humidity62%
Visibility6.2 mi
Dew point61°
Thu, 1371° / 60°0.09
71 °
Carterville, Thursday, 13 August
Light rain. High 71°, low 60°.
Pressure29.80 inHg
Wind12.6 mph W
Humidity46%
Visibility—
Dew point48°
Fri, 1472° / 55°0.08
72 °
Carterville, Friday, 14 August
Light rain. High 72°, low 55°.
Pressure30.00 inHg
Wind12.7 mph W
Humidity42%
Visibility—
Dew point46°
Sat, 1572° / 52°0
72 °
Carterville, Saturday, 15 August
Clear. High 72°, low 52°.
Pressure30.18 inHg
Wind13 mph NW
Humidity42%
Visibility—
Dew point45°
Sun, 1675° / 51°0
75 °
Carterville, Sunday, 16 August
Mostly clear. High 75°, low 51°.
Pressure30.18 inHg
Wind6.1 mph NW
Humidity39%
Visibility—
Dew point46°
Mon, 1777° / 55°0.02
77 °
Carterville, Monday, 17 August
Light rain. High 77°, low 55°.
Pressure30.06 inHg
Wind8.4 mph S
Humidity51%
Visibility—
Dew point55°
Tue, 1880° / 61°0
80 °
Carterville, Tuesday, 18 August
Overcast. High 80°, low 61°.
Pressure30.00 inHg
Wind4.8 mph E
Humidity52%
Visibility—
Dew point58°
Wed, 1977° / 60°0.89
77 °
Carterville, Wednesday, 19 August
Heavy rain. High 77°, low 60°.
Pressure29.80 inHg
Wind11.3 mph S
Humidity70%
Visibility—
Dew point65°
Thu, 2066° / 58°0.43
66 °
Carterville, Thursday, 20 August
Rain. High 66°, low 58°.
Pressure29.59 inHg
Wind14.2 mph NW
Humidity92%
Visibility—
Dew point62°
Fri, 2171° / 56°0.03
71 °
Carterville, Friday, 21 August
Light rain. High 71°, low 56°.
Pressure29.88 inHg
Wind14.2 mph NW
Humidity45%
Visibility—
Dew point46°
Sat, 2271° / 49°0
71 °
Carterville, Saturday, 22 August
Clear. High 71°, low 49°.
Pressure30.06 inHg
Wind7.7 mph NW
Humidity33%
Visibility—
Dew point38°
Sun, 2377° / 55°0.37
77 °
Carterville, Sunday, 23 August
Rain. High 77°, low 55°.
Pressure29.88 inHg
Wind11.2 mph E
Humidity62%
Visibility—
Dew point61°
Mon, 2466° / 62°0.09
66 °
Carterville, Monday, 24 August
Light rain. High 66°, low 62°.
Pressure29.91 inHg
Wind10.8 mph W
Humidity84%
Visibility—
Dew point60°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2576° / 61°0.12
76 °
Carterville, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high76°
Average low61°
Average precipitation0.12 in
Chance of precipitation35%
Record high92° (2007)
Record low46° (1971)
Wed, 2677° / 61°0.09
77 °
Carterville, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.09 in
Chance of precipitation35%
Record high85° (2021)
Record low49° (1977)
Thu, 2776° / 62°0.18
76 °
Carterville, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high76°
Average low62°
Average precipitation0.18 in
Chance of precipitation50%
Record high88° (1993)
Record low47° (1969)
Fri, 2876° / 62°0.26
76 °
Carterville, Friday, 28 August
Climate normal for this date — 60-year average.
Average high76°
Average low62°
Average precipitation0.26 in
Chance of precipitation52%
Record high90° (2018)
Record low49° (1968)
Sat, 2975° / 61°0.18
75 °
Carterville, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high75°
Average low61°
Average precipitation0.18 in
Chance of precipitation52%
Record high90° (2018)
Record low46° (1982)
Sun, 3075° / 60°0.15
75 °
Carterville, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high75°
Average low60°
Average precipitation0.15 in
Chance of precipitation38%
Record high90° (1991)
Record low45° (1965)
Mon, 3175° / 59°0.15
75 °
Carterville, Monday, 31 August
Climate normal for this date — 60-year average.
Average high75°
Average low59°
Average precipitation0.15 in
Chance of precipitation48%
Record high90° (1973)
Record low46° (1965)
Tue, 0174° / 59°0.07
74 °
Carterville, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high74°
Average low59°
Average precipitation0.07 in
Chance of precipitation30%
Record high88° (2010)
Record low47° (1967)
Wed, 0275° / 59°0.16
75 °
Carterville, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high75°
Average low59°
Average precipitation0.16 in
Chance of precipitation42%
Record high88° (2010)
Record low45° (2017)
Thu, 0374° / 59°0.15
74 °
Carterville, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high74°
Average low59°
Average precipitation0.15 in
Chance of precipitation37%
Record high90° (2010)
Record low46° (1976)
Fri, 0474° / 60°0.13
74 °
Carterville, Friday, 4 September
Climate normal for this date — 60-year average.
Average high74°
Average low60°
Average precipitation0.13 in
Chance of precipitation35%
Record high91° (1999)
Record low46° (1987)
Sat, 0574° / 59°0.12
74 °
Carterville, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high74°
Average low59°
Average precipitation0.12 in
Chance of precipitation28%
Record high91° (1973)
Record low46° (2000)
Sun, 0674° / 59°0.18
74 °
Carterville, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high74°
Average low59°
Average precipitation0.18 in
Chance of precipitation38%
Record high89° (2007)
Record low46° (2000)
Mon, 0773° / 58°0.14
73 °
Carterville, Monday, 7 September
Climate normal for this date — 60-year average.
Average high73°
Average low58°
Average precipitation0.14 in
Chance of precipitation38%
Record high92° (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 Carterville, 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 Carterville, 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.