Monthly outlook for Greenway, SD: average high 58.3°, average low 39.9°. That is 3.5° above the climate normal for October. Precipitation is expected on 4 days (about 1.9 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 23 October (70.1°), the coolest 31 October (20°).
58.3°/39.9°
Average high / low
+3.5°
Above normal
4 / 3
Wet days / normal
1.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
63.5°
54.1°
+5.2°
27 October – 5 November
49.6°
47.6°
+1.1°
6 November – 15 November
at normal
41.1°
—
October records over 66 years
88.3°4 October 1963All-time high
4.5°26 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Eureka (10 mi).
Sun, 1866° / 43°0
66 °
Greenway, Sunday, 18 October
Clear. High 66°, low 43°.
Pressure30.06 inHg
Wind10.8 mph N
Humidity46%
Visibility6.2 mi
Dew point41°
Mon, 1960° / 42°0
60 °
Greenway, Monday, 19 October
Clear. High 60°, low 42°.
Pressure30.24 inHg
Wind10.9 mph E
Humidity52%
Visibility6.2 mi
Dew point38°
Tue, 2064° / 44°0
64 °
Greenway, Tuesday, 20 October
Clear. High 64°, low 44°.
Pressure30.12 inHg
Wind10.7 mph SE
Humidity81%
Visibility4.9 mi
Dew point48°
Wed, 2165° / 45°0
65 °
Greenway, Wednesday, 21 October
Clear. High 65°, low 45°.
Pressure30.15 inHg
Wind6.2 mph NE
Humidity78%
Visibility6.2 mi
Dew point52°
Thu, 2267° / 49°0
67 °
Greenway, Thursday, 22 October
Mostly clear. High 67°, low 49°.
Pressure30.09 inHg
Wind16.7 mph SE
Humidity73%
Visibility—
Dew point53°
Fri, 2370° / 57°0.16
70 °
Greenway, Friday, 23 October
Light rain. High 70°, low 57°.
Pressure29.65 inHg
Wind18.7 mph SE
Humidity79%
Visibility—
Dew point59°
Sat, 2465° / 43°0.08
65 °
Greenway, Saturday, 24 October
Light rain. High 65°, low 43°.
Pressure29.56 inHg
Wind23.8 mph NW
Humidity89%
Visibility—
Dew point51°
Sun, 2552° / 36°0
52 °
Greenway, Sunday, 25 October
Clear. High 52°, low 36°.
Pressure30.15 inHg
Wind18.9 mph NW
Humidity53%
Visibility—
Dew point31°
Mon, 2660° / 42°0.02
60 °
Greenway, Monday, 26 October
Light rain. High 60°, low 42°.
Pressure29.71 inHg
Wind23.3 mph S
Humidity60%
Visibility—
Dew point42°
Tue, 2765° / 44°0
65 °
Greenway, Tuesday, 27 October
Overcast. High 65°, low 44°.
Pressure29.59 inHg
Wind14.3 mph S
Humidity24%
Visibility—
Dew point22°
Wed, 2853° / 43°0.01
53 °
Greenway, Wednesday, 28 October
Light rain. High 53°, low 43°.
Pressure29.83 inHg
Wind19.4 mph W
Humidity36%
Visibility—
Dew point26°
Thu, 2963° / 39°0
63 °
Greenway, Thursday, 29 October
Mostly clear. High 63°, low 39°.
Pressure29.65 inHg
Wind20.7 mph SW
Humidity17%
Visibility—
Dew point12°
Fri, 3050° / 33°0.99
50 °
Greenway, Friday, 30 October
Snow. High 50°, low 33°.
Pressure29.44 inHg
Wind29.2 mph N
Humidity50%
Visibility—
Dew point31°
Sat, 3132° / 20°0.69
32 °
Greenway, Saturday, 31 October
Snow. High 32°, low 20°.
Pressure29.77 inHg
Wind33.4 mph NW
Humidity87%
Visibility—
Dew point27°
Sun, 0134° / 21°0
34 °
Greenway, Sunday, 1 November
Partly cloudy. High 34°, low 21°.
Pressure30.00 inHg
Wind9 mph SE
Humidity99%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0247° / 31°0.02
47 °
Greenway, Monday, 2 November
Climate normal for this date — 60-year average.
Average high47°
Average low31°
Average precipitation0.02 in
Chance of precipitation12%
Record high74° (2022)
Record low6° (1991)
Tue, 0346° / 31°0.02
46 °
Greenway, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high46°
Average low31°
Average precipitation0.02 in
Chance of precipitation12%
Record high67° (1978)
Record low1° (1991)
Wed, 0446° / 29°0.01
46 °
Greenway, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high46°
Average low29°
Average precipitation0.01 in
Chance of precipitation10%
Record high69° (1978)
Record low2° (1991)
Thu, 0546° / 30°0.04
46 °
Greenway, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high46°
Average low30°
Average precipitation0.04 in
Chance of precipitation18%
Record high69° (1975)
Record low5° (2003)
Fri, 0645° / 29°0.02
45 °
Greenway, Friday, 6 November
Climate normal for this date — 60-year average.
Average high45°
Average low29°
Average precipitation0.02 in
Chance of precipitation10%
Record high69° (2016)
Record low-4° (1991)
Sat, 0745° / 29°0.04
45 °
Greenway, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high45°
Average low29°
Average precipitation0.04 in
Chance of precipitation13%
Record high67° (2006)
Record low-6° (1991)
Sun, 0844° / 29°0.05
44 °
Greenway, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high44°
Average low29°
Average precipitation0.05 in
Chance of precipitation20%
Record high69° (1978)
Record low3° (2003)
Mon, 0941° / 27°0.04
41 °
Greenway, Monday, 9 November
Climate normal for this date — 60-year average.
Average high41°
Average low27°
Average precipitation0.04 in
Chance of precipitation18%
Record high63° (2016)
Record low8° (1986)
Tue, 1039° / 25°0.06
39 °
Greenway, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high39°
Average low25°
Average precipitation0.06 in
Chance of precipitation22%
Record high62° (1989)
Record low-2° (1986)
Wed, 1138° / 24°0.01
38 °
Greenway, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high38°
Average low24°
Average precipitation0.01 in
Chance of precipitation13%
Record high64° (2005)
Record low-2° (1986)
Thu, 1239° / 24°0.03
39 °
Greenway, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high39°
Average low24°
Average precipitation0.03 in
Chance of precipitation15%
Record high63° (1999)
Record low-5° (1986)
Fri, 1341° / 26°0.02
41 °
Greenway, Friday, 13 November
Climate normal for this date — 60-year average.
Average high41°
Average low26°
Average precipitation0.02 in
Chance of precipitation20%
Record high63° (2016)
Record low-7° (1986)
Sat, 1440° / 26°0.02
40 °
Greenway, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high40°
Average low26°
Average precipitation0.02 in
Chance of precipitation15%
Record high61° (2025)
Record low-3° (2014)
Sun, 1539° / 25°0.01
39 °
Greenway, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high39°
Average low25°
Average precipitation0.01 in
Chance of precipitation12%
Record high60° (1975)
Record low2° (2014)
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 Greenway, 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 Greenway, 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.