Monthly outlook for Ravinia, SD: average high 67.9°, average low 48.9°. That is 3.8° above the climate normal for October. Precipitation is expected on 1 day (about 0.2 inches), against a normal of 3 days and 1.0 inches. The warmest day looks like 10 October (88.4°), the coolest 17 October (30.5°).
67.9°/48.9°
Average high / low
+3.8°
Above normal
1 / 3
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 October – 18 October
66.2°
62°
+2.3°
19 October – 28 October
70.8°
58.4°
+6.9°
29 October – 7 November
at normal
52.3°
—
October records over 66 years
91.4°2 October 1997All-time high
7.2°27 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Lakeview Colony (6 mi).
Sat, 1088° / 67°0
88 °
Ravinia, Saturday, 10 October
Clear. High 88°, low 67°.
Pressure29.59 inHg
Wind15.9 mph S
Humidity32%
Visibility6.2 mi
Dew point49°
Sun, 1184° / 61°0
84 °
Ravinia, Sunday, 11 October
Overcast. High 84°, low 61°.
Pressure29.65 inHg
Wind8.8 mph S
Humidity39%
Visibility6.2 mi
Dew point51°
Mon, 1270° / 53°0
70 °
Ravinia, Monday, 12 October
Partly cloudy. High 70°, low 53°.
Pressure29.80 inHg
Wind9.4 mph N
Humidity68%
Visibility6.2 mi
Dew point49°
Tue, 1359° / 50°0
59 °
Ravinia, Tuesday, 13 October
Overcast. High 59°, low 50°.
Pressure30.03 inHg
Wind9.6 mph N
Humidity62%
Visibility6.2 mi
Dew point42°
Wed, 1463° / 47°0
63 °
Ravinia, Wednesday, 14 October
Clear. High 63°, low 47°.
Pressure30.21 inHg
Wind8 mph N
Humidity49%
Visibility—
Dew point38°
Thu, 1557° / 51°0.22
57 °
Ravinia, Thursday, 15 October
Light rain. High 57°, low 51°.
Pressure29.80 inHg
Wind33.2 mph NW
Humidity89%
Visibility—
Dew point53°
Fri, 1649° / 41°0
49 °
Ravinia, Friday, 16 October
Mostly clear. High 49°, low 41°.
Pressure30.30 inHg
Wind30.1 mph NW
Humidity41%
Visibility—
Dew point24°
Sat, 1746° / 30°0
46 °
Ravinia, Saturday, 17 October
Partly cloudy. High 46°, low 30°.
Pressure30.59 inHg
Wind17.8 mph NW
Humidity27%
Visibility—
Dew point10°
Sun, 1863° / 39°0
63 °
Ravinia, Sunday, 18 October
Partly cloudy. High 63°, low 39°.
Pressure30.18 inHg
Wind14.9 mph S
Humidity34%
Visibility—
Dew point27°
Mon, 1966° / 45°0
66 °
Ravinia, Monday, 19 October
Clear. High 66°, low 45°.
Pressure30.18 inHg
Wind5.8 mph SE
Humidity35%
Visibility—
Dew point32°
Tue, 2075° / 48°0
75 °
Ravinia, Tuesday, 20 October
Clear. High 75°, low 48°.
Pressure30.12 inHg
Wind14.8 mph S
Humidity33%
Visibility—
Dew point37°
Wed, 2170° / 54°0
70 °
Ravinia, Wednesday, 21 October
Clear. High 70°, low 54°.
Pressure30.06 inHg
Wind15.6 mph N
Humidity39%
Visibility—
Dew point42°
Thu, 2266° / 46°0
66 °
Ravinia, Thursday, 22 October
Clear. High 66°, low 46°.
Pressure30.15 inHg
Wind9.3 mph SE
Humidity40%
Visibility—
Dew point35°
Fri, 2380° / 50°0
80 °
Ravinia, Friday, 23 October
Mostly clear. High 80°, low 50°.
Pressure29.74 inHg
Wind12.5 mph SW
Humidity35%
Visibility—
Dew point42°
Sat, 2468° / 51°0
68 °
Ravinia, Saturday, 24 October
Mostly clear. High 68°, low 51°.
Pressure29.97 inHg
Wind7.7 mph N
Humidity43%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2557° / 40°0.04
57 °
Ravinia, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high57°
Average low40°
Average precipitation0.04 in
Chance of precipitation15%
Record high79° (1989)
Record low21° (2020)
Mon, 2658° / 40°0.02
58 °
Ravinia, Monday, 26 October
Climate normal for this date — 60-year average.
Average high58°
Average low40°
Average precipitation0.02 in
Chance of precipitation17%
Record high76° (1989)
Record low14° (2020)
Tue, 2756° / 39°0.05
56 °
Ravinia, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high56°
Average low39°
Average precipitation0.05 in
Chance of precipitation17%
Record high77° (1999)
Record low7° (2020)
Wed, 2855° / 38°0.04
55 °
Ravinia, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high55°
Average low38°
Average precipitation0.04 in
Chance of precipitation18%
Record high78° (2016)
Record low22° (2017)
Thu, 2955° / 38°0.07
55 °
Ravinia, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high55°
Average low38°
Average precipitation0.07 in
Chance of precipitation20%
Record high74° (1978)
Record low20° (1991)
Fri, 3053° / 38°0.1
53 °
Ravinia, Friday, 30 October
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.1 in
Chance of precipitation30%
Record high76° (1965)
Record low17° (1991)
Sat, 3153° / 36°0.06
53 °
Ravinia, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high53°
Average low36°
Average precipitation0.06 in
Chance of precipitation18%
Record high82° (2016)
Record low14° (2002)
Sun, 0152° / 37°0.04
52 °
Ravinia, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.04 in
Chance of precipitation13%
Record high75° (1990)
Record low14° (2002)
Mon, 0252° / 36°0.05
52 °
Ravinia, Monday, 2 November
Climate normal for this date — 60-year average.
Average high52°
Average low36°
Average precipitation0.05 in
Chance of precipitation18%
Record high76° (2005)
Record low10° (1991)
Tue, 0351° / 36°0.04
51 °
Ravinia, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.04 in
Chance of precipitation15%
Record high74° (1978)
Record low7° (1991)
Wed, 0452° / 34°0.01
52 °
Ravinia, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high52°
Average low34°
Average precipitation0.01 in
Chance of precipitation5%
Record high74° (1978)
Record low-8° (1991)
Thu, 0552° / 35°0.03
52 °
Ravinia, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high52°
Average low35°
Average precipitation0.03 in
Chance of precipitation17%
Record high74° (2001)
Record low15° (2003)
Fri, 0651° / 35°0.02
51 °
Ravinia, Friday, 6 November
Climate normal for this date — 60-year average.
Average high51°
Average low35°
Average precipitation0.02 in
Chance of precipitation12%
Record high79° (2020)
Record low7° (2003)
Sat, 0752° / 34°0.02
52 °
Ravinia, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high52°
Average low34°
Average precipitation0.02 in
Chance of precipitation13%
Record high77° (2020)
Record low-2° (1991)
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 Ravinia, SD 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 Ravinia, SD 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.