Monthly outlook for Greenway, SD: average high 55.4°, average low 36.5°. That is 2.8° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 22 October (72°), the coolest 28 October (22.1°).
55.4°/36.5°
Average high / low
+2.8°
Above normal
1 / 3
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
20 October – 29 October
56.5°
52.5°
+2.2°
30 October – 8 November
53.6°
46°
+4.2°
9 November – 18 November
at normal
39.3°
—
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).
Wed, 2165° / 43°0
65 °
Greenway, Wednesday, 21 October
Overcast. High 65°, low 43°.
Pressure30.24 inHg
Wind8.7 mph E
Humidity66%
Visibility6.2 mi
Dew point46°
Thu, 2272° / 50°0
72 °
Greenway, Thursday, 22 October
Clear. High 72°, low 50°.
Pressure30.06 inHg
Wind11.9 mph SE
Humidity73%
Visibility6.2 mi
Dew point55°
Fri, 2370° / 57°0
70 °
Greenway, Friday, 23 October
Overcast. High 70°, low 57°.
Pressure29.83 inHg
Wind18.4 mph SE
Humidity64%
Visibility6.2 mi
Dew point52°
Sat, 2465° / 43°0.07
65 °
Greenway, Saturday, 24 October
Light rain. High 65°, low 43°.
Pressure30.15 inHg
Wind19.6 mph NW
Humidity60%
Visibility—
Dew point37°
Sun, 2551° / 33°0
51 °
Greenway, Sunday, 25 October
Clear. High 51°, low 33°.
Pressure30.47 inHg
Wind6.3 mph NE
Humidity50%
Visibility—
Dew point29°
Mon, 2643° / 34°0
43 °
Greenway, Monday, 26 October
Overcast. High 43°, low 34°.
Pressure30.45 inHg
Wind14.8 mph N
Humidity53%
Visibility—
Dew point25°
Tue, 2734° / 25°0
34 °
Greenway, Tuesday, 27 October
Clear. High 34°, low 25°.
Pressure30.71 inHg
Wind16 mph NW
Humidity34%
Visibility—
Dew point6°
Wed, 2847° / 22°0
47 °
Greenway, Wednesday, 28 October
Overcast. High 47°, low 22°.
Pressure30.39 inHg
Wind8.3 mph SW
Humidity22%
Visibility—
Dew point3°
Thu, 2948° / 29°0
48 °
Greenway, Thursday, 29 October
Clear. High 48°, low 29°.
Pressure30.06 inHg
Wind8.9 mph N
Humidity21%
Visibility—
Dew point6°
Fri, 3047° / 28°0
47 °
Greenway, Friday, 30 October
Clear. High 47°, low 28°.
Pressure30.09 inHg
Wind6.2 mph NE
Humidity48%
Visibility—
Dew point22°
Sat, 3146° / 29°0
46 °
Greenway, Saturday, 31 October
Clear. High 46°, low 29°.
Pressure30.21 inHg
Wind8.5 mph E
Humidity42%
Visibility—
Dew point19°
Sun, 0144° / 27°0.03
44 °
Greenway, Sunday, 1 November
Light rain. High 44°, low 27°.
Pressure30.24 inHg
Wind12.4 mph SE
Humidity41%
Visibility—
Dew point19°
Mon, 0262° / 42°0.02
62 °
Greenway, Monday, 2 November
Light rain. High 62°, low 42°.
Pressure30.09 inHg
Wind11.9 mph NW
Humidity60%
Visibility—
Dew point40°
Tue, 0358° / 37°0
58 °
Greenway, Tuesday, 3 November
Clear. High 58°, low 37°.
Pressure30.15 inHg
Wind10.7 mph NW
Humidity36%
Visibility—
Dew point25°
Wed, 0465° / 42°0
65 °
Greenway, Wednesday, 4 November
Overcast. High 65°, low 42°.
Pressure29.77 inHg
Wind8.7 mph S
Humidity29%
Visibility—
Dew point25°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Mon, 1640° / 25°0.02
40 °
Greenway, Monday, 16 November
Climate normal for this date — 60-year average.
Average high40°
Average low25°
Average precipitation0.02 in
Chance of precipitation8%
Record high63° (2001)
Record low-2° (2014)
Tue, 1738° / 25°0.02
38 °
Greenway, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high38°
Average low25°
Average precipitation0.02 in
Chance of precipitation10%
Record high62° (2001)
Record low5° (2014)
Wed, 1838° / 23°0.04
38 °
Greenway, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high38°
Average low23°
Average precipitation0.04 in
Chance of precipitation20%
Record high52° (2001)
Record low2° (2022)
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.