Monthly outlook for Russell Lake, IN: average high 84.9°, average low 68.6°. That is 2° above the climate normal for August. Precipitation is expected on 7 days (about 3.8 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 10 August (94.9°), the coolest 14 August (57.7°).
84.9°/68.6°
Average high / low
+2°
Above normal
7 / 5
Wet days / normal
3.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
81.8°
81.3°
+0.3°
19 August – 28 August
89.9°
81.4°
+4.7°
29 August – 7 September
at normal
79.7°
—
August records over 66 years
99°17 August 1988All-time high
45°29 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Carmel (8 mi).
Mon, 1095° / 73°0.13
95 °
Russell Lake, Monday, 10 August
Rain. High 95°, low 73°.
Pressure29.94 inHg
Wind13.5 mph SW
Humidity70%
Visibility6.2 mi
Dew point73°
Tue, 1188° / 72°0.13
88 °
Russell Lake, Tuesday, 11 August
Rain. High 88°, low 72°.
Pressure29.91 inHg
Wind10.3 mph SW
Humidity65%
Visibility6.2 mi
Dew point72°
Wed, 1282° / 68°1.31
82 °
Russell Lake, Wednesday, 12 August
Heavy rain. High 82°, low 68°.
Pressure29.83 inHg
Wind6.4 mph SW
Humidity73%
Visibility6.2 mi
Dew point74°
Thu, 1380° / 65°0.07
80 °
Russell Lake, Thursday, 13 August
Light rain. High 80°, low 65°.
Pressure29.97 inHg
Wind8.4 mph NE
Humidity57%
Visibility—
Dew point61°
Fri, 1469° / 58°1.92
69 °
Russell Lake, Friday, 14 August
Heavy rain. High 69°, low 58°.
Pressure30.15 inHg
Wind8.6 mph N
Humidity79%
Visibility—
Dew point59°
Sat, 1573° / 61°0
73 °
Russell Lake, Saturday, 15 August
Overcast. High 73°, low 61°.
Pressure30.24 inHg
Wind10.6 mph SE
Humidity55%
Visibility—
Dew point54°
Sun, 1680° / 62°0.05
80 °
Russell Lake, Sunday, 16 August
Light rain. High 80°, low 62°.
Pressure30.09 inHg
Wind7.7 mph SE
Humidity69%
Visibility—
Dew point64°
Mon, 1779° / 68°0
79 °
Russell Lake, Monday, 17 August
Overcast. High 79°, low 68°.
Pressure30.06 inHg
Wind8.2 mph N
Humidity68%
Visibility—
Dew point66°
Tue, 1882° / 65°0
82 °
Russell Lake, Tuesday, 18 August
Clear. High 82°, low 65°.
Pressure30.03 inHg
Wind4.4 mph SE
Humidity56%
Visibility—
Dew point62°
Wed, 1984° / 67°0.01
84 °
Russell Lake, Wednesday, 19 August
Light rain. High 84°, low 67°.
Pressure29.97 inHg
Wind8.9 mph S
Humidity78%
Visibility—
Dew point67°
Thu, 2092° / 73°0
92 °
Russell Lake, Thursday, 20 August
Partly cloudy. High 92°, low 73°.
Pressure29.85 inHg
Wind11.5 mph SW
Humidity59%
Visibility—
Dew point72°
Fri, 2190° / 74°0
90 °
Russell Lake, Friday, 21 August
Partly cloudy. High 90°, low 74°.
Pressure29.85 inHg
Wind7.7 mph N
Humidity60%
Visibility—
Dew point73°
Sat, 2294° / 75°0
94 °
Russell Lake, Saturday, 22 August
Mostly clear. High 94°, low 75°.
Pressure29.91 inHg
Wind6.9 mph SE
Humidity54%
Visibility—
Dew point70°
Sun, 2395° / 78°0
95 °
Russell Lake, Sunday, 23 August
Mostly clear. High 95°, low 78°.
Pressure29.88 inHg
Wind8.7 mph W
Humidity45%
Visibility—
Dew point68°
Mon, 2484° / 71°0.14
84 °
Russell Lake, Monday, 24 August
Rain. High 84°, low 71°.
Pressure30.03 inHg
Wind11.7 mph N
Humidity66%
Visibility—
Dew point70°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2582° / 64°0.07
82 °
Russell Lake, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high82°
Average low64°
Average precipitation0.07 in
Chance of precipitation27%
Record high91° (2020)
Record low53° (1984)
Wed, 2682° / 65°0.11
82 °
Russell Lake, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.11 in
Chance of precipitation37%
Record high90° (2020)
Record low54° (1963)
Thu, 2782° / 66°0.11
82 °
Russell Lake, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.11 in
Chance of precipitation33%
Record high93° (2024)
Record low52° (2025)
Fri, 2882° / 66°0.19
82 °
Russell Lake, Friday, 28 August
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.19 in
Chance of precipitation42%
Record high91° (1990)
Record low49° (1986)
Sat, 2981° / 65°0.15
81 °
Russell Lake, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.15 in
Chance of precipitation33%
Record high91° (2007)
Record low45° (1986)
Sun, 3080° / 64°0.11
80 °
Russell Lake, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.11 in
Chance of precipitation30%
Record high92° (2024)
Record low49° (1986)
Mon, 3180° / 64°0.06
80 °
Russell Lake, Monday, 31 August
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.06 in
Chance of precipitation25%
Record high91° (2011)
Record low51° (2009)
Tue, 0180° / 64°0.12
80 °
Russell Lake, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.12 in
Chance of precipitation22%
Record high97° (2011)
Record low49° (1967)
Wed, 0280° / 64°0.13
80 °
Russell Lake, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.13 in
Chance of precipitation32%
Record high98° (2011)
Record low49° (1967)
Thu, 0380° / 63°0.11
80 °
Russell Lake, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.11 in
Chance of precipitation28%
Record high95° (2011)
Record low49° (1974)
Fri, 0479° / 63°0.04
79 °
Russell Lake, Friday, 4 September
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.04 in
Chance of precipitation27%
Record high93° (1999)
Record low49° (1997)
Sat, 0579° / 62°0.04
79 °
Russell Lake, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.04 in
Chance of precipitation27%
Record high94° (2007)
Record low48° (1997)
Sun, 0679° / 62°0.04
79 °
Russell Lake, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.04 in
Chance of precipitation22%
Record high91° (1998)
Record low48° (1962)
Mon, 0779° / 62°0.07
79 °
Russell Lake, Monday, 7 September
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.07 in
Chance of precipitation27%
Record high91° (2002)
Record low46° (1962)
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 Russell Lake, 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 Russell Lake, 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.