Monthly outlook for Chamberlain, SD: average high 70.7°, average low 50.8°. That is 5.6° above the climate normal for October. Precipitation is expected on 1 day (about 0.2 inches), against a normal of 3 days and 0.9 inches. The warmest day looks like 10 October (92°), the coolest 17 October (38.1°).
70.7°/50.8°
Average high / low
+5.6°
Above normal
1 / 3
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 October – 17 October
70.1°
61.6°
+4.7°
18 October – 27 October
71.7°
58°
+7.6°
28 October – 6 November
at normal
51.7°
—
October records over 66 years
91.9°4 October 1975All-time high
7.2°27 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Reliance (15 mi).
Fri, 0986° / 52°0
86 °
Chamberlain, Friday, 9 October
Mostly clear. High 86°, low 52°.
Pressure29.83 inHg
Wind8.8 mph SE
Humidity66%
Visibility6.2 mi
Dew point60°
Sat, 1092° / 70°0
92 °
Chamberlain, Saturday, 10 October
Clear. High 92°, low 70°.
Pressure29.53 inHg
Wind14.5 mph S
Humidity32%
Visibility6.2 mi
Dew point49°
Sun, 1176° / 62°0
76 °
Chamberlain, Sunday, 11 October
Overcast. High 76°, low 62°.
Pressure29.65 inHg
Wind12.2 mph SW
Humidity40%
Visibility6.2 mi
Dew point51°
Mon, 1262° / 51°0
62 °
Chamberlain, Monday, 12 October
Overcast. High 62°, low 51°.
Pressure29.85 inHg
Wind16 mph NW
Humidity63%
Visibility—
Dew point47°
Tue, 1356° / 45°0.02
56 °
Chamberlain, Tuesday, 13 October
Light rain. High 56°, low 45°.
Pressure30.18 inHg
Wind12.5 mph N
Humidity64%
Visibility—
Dew point38°
Wed, 1477° / 57°0.15
77 °
Chamberlain, Wednesday, 14 October
Light rain. High 77°, low 57°.
Pressure29.44 inHg
Wind18.8 mph S
Humidity57%
Visibility—
Dew point57°
Thu, 1568° / 48°0
68 °
Chamberlain, Thursday, 15 October
Mostly clear. High 68°, low 48°.
Pressure29.59 inHg
Wind29.6 mph W
Humidity26%
Visibility—
Dew point31°
Fri, 1648° / 46°0
48 °
Chamberlain, Friday, 16 October
Light rain. High 48°, low 46°.
Pressure30.39 inHg
Wind26.8 mph W
Humidity67%
Visibility—
Dew point36°
Sat, 1758° / 38°0.01
58 °
Chamberlain, Saturday, 17 October
Light rain. High 58°, low 38°.
Pressure30.39 inHg
Wind14.5 mph S
Humidity57%
Visibility—
Dew point33°
Sun, 1863° / 43°0
63 °
Chamberlain, Sunday, 18 October
Clear. High 63°, low 43°.
Pressure30.18 inHg
Wind8.4 mph S
Humidity36%
Visibility—
Dew point30°
Mon, 1968° / 46°0
68 °
Chamberlain, Monday, 19 October
Clear. High 68°, low 46°.
Pressure30.09 inHg
Wind6.8 mph NE
Humidity34%
Visibility—
Dew point32°
Tue, 2069° / 49°0
69 °
Chamberlain, Tuesday, 20 October
Partly cloudy. High 69°, low 49°.
Pressure30.09 inHg
Wind5.7 mph SE
Humidity32%
Visibility—
Dew point34°
Wed, 2184° / 52°0
84 °
Chamberlain, Wednesday, 21 October
Clear. High 84°, low 52°.
Pressure29.59 inHg
Wind17.7 mph S
Humidity21%
Visibility—
Dew point33°
Thu, 2270° / 53°0
70 °
Chamberlain, Thursday, 22 October
Partly cloudy. High 70°, low 53°.
Pressure29.53 inHg
Wind19.1 mph W
Humidity20%
Visibility—
Dew point22°
Fri, 2377° / 50°0
77 °
Chamberlain, Friday, 23 October
Clear. High 77°, low 50°.
Pressure29.50 inHg
Wind15.1 mph NW
Humidity23%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2456° / 39°0.04
56 °
Chamberlain, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high56°
Average low39°
Average precipitation0.04 in
Chance of precipitation13%
Record high83° (1989)
Record low21° (2020)
Sun, 2557° / 39°0.02
57 °
Chamberlain, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high57°
Average low39°
Average precipitation0.02 in
Chance of precipitation10%
Record high79° (1989)
Record low16° (2020)
Mon, 2658° / 39°0.02
58 °
Chamberlain, Monday, 26 October
Climate normal for this date — 60-year average.
Average high58°
Average low39°
Average precipitation0.02 in
Chance of precipitation12%
Record high76° (2014)
Record low9° (2020)
Tue, 2756° / 38°0.04
56 °
Chamberlain, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high56°
Average low38°
Average precipitation0.04 in
Chance of precipitation23%
Record high74° (1983)
Record low7° (2020)
Wed, 2855° / 37°0.06
55 °
Chamberlain, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high55°
Average low37°
Average precipitation0.06 in
Chance of precipitation15%
Record high76° (2016)
Record low20° (2019)
Thu, 2953° / 37°0.06
53 °
Chamberlain, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.06 in
Chance of precipitation28%
Record high75° (1978)
Record low17° (1991)
Fri, 3052° / 37°0.06
52 °
Chamberlain, Friday, 30 October
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.06 in
Chance of precipitation27%
Record high74° (1965)
Record low13° (1991)
Sat, 3153° / 35°0.04
53 °
Chamberlain, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high53°
Average low35°
Average precipitation0.04 in
Chance of precipitation15%
Record high83° (2016)
Record low15° (2002)
Sun, 0151° / 35°0.04
51 °
Chamberlain, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high51°
Average low35°
Average precipitation0.04 in
Chance of precipitation18%
Record high76° (1990)
Record low14° (2002)
Mon, 0251° / 35°0.03
51 °
Chamberlain, Monday, 2 November
Climate normal for this date — 60-year average.
Average high51°
Average low35°
Average precipitation0.03 in
Chance of precipitation12%
Record high74° (1964)
Record low9° (1991)
Tue, 0350° / 35°0.03
50 °
Chamberlain, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.03 in
Chance of precipitation13%
Record high71° (2020)
Record low6° (1991)
Wed, 0451° / 33°0.01
51 °
Chamberlain, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high51°
Average low33°
Average precipitation0.01 in
Chance of precipitation8%
Record high74° (1978)
Record low4° (1995)
Thu, 0551° / 34°0.03
51 °
Chamberlain, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high51°
Average low34°
Average precipitation0.03 in
Chance of precipitation15%
Record high75° (2001)
Record low14° (2003)
Fri, 0650° / 33°0.03
50 °
Chamberlain, Friday, 6 November
Climate normal for this date — 60-year average.
Average high50°
Average low33°
Average precipitation0.03 in
Chance of precipitation13%
Record high77° (2020)
Record low3° (2003)
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 Chamberlain, 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 Chamberlain, 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.