Monthly outlook for River Ridge, IN: average high 85.8°, average low 68.5°. That is 0.7° above the climate normal for August. Precipitation is expected on 7 days (about 2.2 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 11 August (95.5°), the coolest 21 August (59.2°).
85.8°/68.5°
Average high / low
+0.7°
Above normal
7 / 5
Wet days / normal
2.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
86.2°
84.5°
+0.9°
18 August – 27 August
85.2°
84.7°
+0.3°
28 August – 6 September
at normal
83.3°
—
August records over 66 years
100.8°15 August 2007All-time high
49.5°29 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Rolling Hills (8 mi).
Sun, 0993° / 75°0.02
93 °
River Ridge, Sunday, 9 August
Light rain. High 93°, low 75°.
Pressure30.06 inHg
Wind5.9 mph S
Humidity63%
Visibility6.2 mi
Dew point72°
Mon, 1095° / 76°0
95 °
River Ridge, Monday, 10 August
Clear. High 95°, low 76°.
Pressure30.06 inHg
Wind10.8 mph SW
Humidity54%
Visibility6.2 mi
Dew point69°
Tue, 1196° / 73°0.07
96 °
River Ridge, Tuesday, 11 August
Rain. High 96°, low 73°.
Pressure29.97 inHg
Wind5.6 mph SW
Humidity56%
Visibility6.2 mi
Dew point70°
Wed, 1289° / 70°0.13
89 °
River Ridge, Wednesday, 12 August
Light rain. High 89°, low 70°.
Pressure29.83 inHg
Wind9.5 mph W
Humidity64%
Visibility6.2 mi
Dew point73°
Thu, 1387° / 68°0.69
87 °
River Ridge, Thursday, 13 August
Heavy rain. High 87°, low 68°.
Pressure29.97 inHg
Wind12.7 mph N
Humidity50%
Visibility—
Dew point64°
Fri, 1469° / 65°0.89
69 °
River Ridge, Friday, 14 August
Heavy rain. High 69°, low 65°.
Pressure30.09 inHg
Wind8.5 mph E
Humidity94%
Visibility—
Dew point65°
Sat, 1577° / 62°0
77 °
River Ridge, Saturday, 15 August
Overcast. High 77°, low 62°.
Pressure30.24 inHg
Wind7 mph E
Humidity49%
Visibility—
Dew point55°
Sun, 1682° / 66°0.11
82 °
River Ridge, Sunday, 16 August
Light rain. High 82°, low 66°.
Pressure30.12 inHg
Wind5.8 mph E
Humidity74%
Visibility—
Dew point66°
Mon, 1783° / 71°0.04
83 °
River Ridge, Monday, 17 August
Light rain. High 83°, low 71°.
Pressure30.03 inHg
Wind6.6 mph N
Humidity64%
Visibility—
Dew point68°
Tue, 1886° / 67°0.01
86 °
River Ridge, Tuesday, 18 August
Light rain. High 86°, low 67°.
Pressure30.00 inHg
Wind4 mph E
Humidity57%
Visibility—
Dew point65°
Wed, 1989° / 69°0
89 °
River Ridge, Wednesday, 19 August
Overcast. High 89°, low 69°.
Pressure29.88 inHg
Wind9.1 mph N
Humidity51%
Visibility—
Dew point65°
Thu, 2077° / 60°0
77 °
River Ridge, Thursday, 20 August
Mostly clear. High 77°, low 60°.
Pressure29.97 inHg
Wind11.5 mph N
Humidity50%
Visibility—
Dew point54°
Fri, 2178° / 59°0
78 °
River Ridge, Friday, 21 August
Partly cloudy. High 78°, low 59°.
Pressure30.03 inHg
Wind7.4 mph N
Humidity47%
Visibility—
Dew point53°
Sat, 2287° / 66°0.02
87 °
River Ridge, Saturday, 22 August
Light rain. High 87°, low 66°.
Pressure29.91 inHg
Wind9.1 mph S
Humidity56%
Visibility—
Dew point62°
Sun, 2394° / 76°0.02
94 °
River Ridge, Sunday, 23 August
Light rain. High 94°, low 76°.
Pressure29.94 inHg
Wind12.4 mph W
Humidity43%
Visibility—
Dew point66°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2484° / 67°0.09
84 °
River Ridge, Monday, 24 August
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.09 in
Chance of precipitation27%
Record high98° (2007)
Record low56° (1997)
Tue, 2585° / 67°0.07
85 °
River Ridge, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high85°
Average low67°
Average precipitation0.07 in
Chance of precipitation33%
Record high95° (2023)
Record low56° (2015)
Wed, 2685° / 67°0.09
85 °
River Ridge, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high85°
Average low67°
Average precipitation0.09 in
Chance of precipitation32%
Record high96° (1983)
Record low57° (2025)
Thu, 2785° / 68°0.08
85 °
River Ridge, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high85°
Average low68°
Average precipitation0.08 in
Chance of precipitation32%
Record high94° (1965)
Record low56° (2025)
Fri, 2885° / 67°0.09
85 °
River Ridge, Friday, 28 August
Climate normal for this date — 60-year average.
Average high85°
Average low67°
Average precipitation0.09 in
Chance of precipitation28%
Record high96° (2007)
Record low55° (1986)
Sat, 2984° / 67°0.11
84 °
River Ridge, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.11 in
Chance of precipitation35%
Record high95° (2024)
Record low49° (1986)
Sun, 3084° / 66°0.14
84 °
River Ridge, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high84°
Average low66°
Average precipitation0.14 in
Chance of precipitation32%
Record high94° (2024)
Record low51° (1986)
Mon, 3183° / 66°0.13
83 °
River Ridge, Monday, 31 August
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.13 in
Chance of precipitation37%
Record high93° (2013)
Record low55° (2009)
Tue, 0183° / 66°0.14
83 °
River Ridge, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.14 in
Chance of precipitation30%
Record high96° (2011)
Record low53° (1967)
Wed, 0283° / 66°0.13
83 °
River Ridge, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.13 in
Chance of precipitation33%
Record high96° (2011)
Record low53° (1967)
Thu, 0383° / 66°0.09
83 °
River Ridge, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.09 in
Chance of precipitation28%
Record high99° (2011)
Record low54° (1967)
Fri, 0482° / 65°0.08
82 °
River Ridge, Friday, 4 September
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.08 in
Chance of precipitation20%
Record high95° (1999)
Record low53° (1997)
Sat, 0582° / 65°0.13
82 °
River Ridge, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.13 in
Chance of precipitation28%
Record high95° (2007)
Record low51° (1997)
Sun, 0682° / 64°0.03
82 °
River Ridge, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high82°
Average low64°
Average precipitation0.03 in
Chance of precipitation18%
Record high96° (1998)
Record low53° (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 River Ridge, IN 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 River Ridge, IN 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.