Monthly outlook for Sitka, SD: average high 56.3°, average low 42.4°. That is 0.6° below the climate normal for October. Precipitation is expected on 4 days (about 0.6 inches), against a normal of 3 days and 0.8 inches. The warmest day looks like 10 October (81.4°), the coolest 17 October (24.8°).
56.3°/42.4°
Average high / low
−0.6°
Below normal
4 / 3
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 October – 19 October
56.3°
58.3°
-1.1°
20 October – 29 October
56.2°
54.6°
+0.9°
30 October – 8 November
at normal
48.3°
—
October records over 66 years
89.2°5 October 1990All-time high
5.9°31 October 1991All-time low
Climate normals and records are computed from the nearest reference point — Mobridge (12 mi).
Sun, 1157° / 49°0
57 °
Sitka, Sunday, 11 October
Overcast. High 57°, low 49°.
Pressure29.80 inHg
Wind14.1 mph NE
Humidity82%
Visibility6.2 mi
Dew point50°
Mon, 1253° / 46°0.3
53 °
Sitka, Monday, 12 October
Rain. High 53°, low 46°.
Pressure29.91 inHg
Wind6.7 mph NE
Humidity88%
Visibility2.8 mi
Dew point46°
Tue, 1350° / 45°0
50 °
Sitka, Tuesday, 13 October
Overcast. High 50°, low 45°.
Pressure30.15 inHg
Wind5.4 mph N
Humidity72%
Visibility6.2 mi
Dew point39°
Wed, 1458° / 44°0
58 °
Sitka, Wednesday, 14 October
Clear. High 58°, low 44°.
Pressure30.30 inHg
Wind4.9 mph E
Humidity57%
Visibility—
Dew point39°
Thu, 1556° / 45°0.01
56 °
Sitka, Thursday, 15 October
Light rain. High 56°, low 45°.
Pressure30.24 inHg
Wind22.7 mph NW
Humidity68%
Visibility—
Dew point44°
Fri, 1643° / 31°0.15
43 °
Sitka, Friday, 16 October
Snow. High 43°, low 31°.
Pressure30.27 inHg
Wind31.7 mph NW
Humidity74%
Visibility—
Dew point30°
Sat, 1744° / 25°0
44 °
Sitka, Saturday, 17 October
Clear. High 44°, low 25°.
Pressure30.50 inHg
Wind17.2 mph S
Humidity48%
Visibility—
Dew point19°
Sun, 1860° / 37°0
60 °
Sitka, Sunday, 18 October
Overcast. High 60°, low 37°.
Pressure30.00 inHg
Wind14.7 mph S
Humidity35%
Visibility—
Dew point26°
Mon, 1961° / 40°0
61 °
Sitka, Monday, 19 October
Overcast. High 61°, low 40°.
Pressure30.06 inHg
Wind18.6 mph SE
Humidity33%
Visibility—
Dew point27°
Tue, 2063° / 50°0
63 °
Sitka, Tuesday, 20 October
Overcast. High 63°, low 50°.
Pressure29.71 inHg
Wind14.5 mph SE
Humidity68%
Visibility—
Dew point48°
Wed, 2159° / 48°0
59 °
Sitka, Wednesday, 21 October
Overcast. High 59°, low 48°.
Pressure29.94 inHg
Wind13.4 mph NW
Humidity46%
Visibility—
Dew point36°
Thu, 2261° / 42°0
61 °
Sitka, Thursday, 22 October
Partly cloudy. High 61°, low 42°.
Pressure29.91 inHg
Wind11.6 mph E
Humidity41%
Visibility—
Dew point32°
Fri, 2352° / 41°0.11
52 °
Sitka, Friday, 23 October
Light rain. High 52°, low 41°.
Pressure30.00 inHg
Wind21 mph NW
Humidity47%
Visibility—
Dew point32°
Sat, 2453° / 37°0
53 °
Sitka, Saturday, 24 October
Partly cloudy. High 53°, low 37°.
Pressure30.12 inHg
Wind13.1 mph NW
Humidity42%
Visibility—
Dew point27°
Sun, 2548° / 43°0.04
48 °
Sitka, Sunday, 25 October
Light rain. High 48°, low 43°.
Pressure30.09 inHg
Wind19.4 mph NW
Humidity77%
Visibility—
Dew point39°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2655° / 38°0.04
55 °
Sitka, Monday, 26 October
Climate normal for this date — 60-year average.
Average high55°
Average low38°
Average precipitation0.04 in
Chance of precipitation12%
Record high76° (1990)
Record low8° (2020)
Tue, 2753° / 37°0.02
53 °
Sitka, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.02 in
Chance of precipitation15%
Record high73° (1983)
Record low13° (2020)
Wed, 2852° / 36°0.06
52 °
Sitka, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high52°
Average low36°
Average precipitation0.06 in
Chance of precipitation15%
Record high72° (2016)
Record low18° (2023)
Thu, 2951° / 36°0.1
51 °
Sitka, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.1 in
Chance of precipitation30%
Record high69° (1978)
Record low11° (1991)
Fri, 3050° / 35°0.04
50 °
Sitka, Friday, 30 October
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.04 in
Chance of precipitation18%
Record high72° (1965)
Record low6° (1991)
Sat, 3150° / 35°0.04
50 °
Sitka, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.04 in
Chance of precipitation17%
Record high74° (1990)
Record low6° (1991)
Sun, 0149° / 35°0.04
49 °
Sitka, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.04 in
Chance of precipitation22%
Record high70° (1978)
Record low13° (1984)
Mon, 0249° / 33°0.02
49 °
Sitka, Monday, 2 November
Climate normal for this date — 60-year average.
Average high49°
Average low33°
Average precipitation0.02 in
Chance of precipitation15%
Record high73° (2022)
Record low6° (1991)
Tue, 0348° / 34°0.03
48 °
Sitka, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.03 in
Chance of precipitation17%
Record high69° (1978)
Record low2° (1991)
Wed, 0448° / 33°0.01
48 °
Sitka, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.01 in
Chance of precipitation7%
Record high73° (1978)
Record low0° (1991)
Thu, 0548° / 33°0.04
48 °
Sitka, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.04 in
Chance of precipitation22%
Record high69° (2016)
Record low8° (2003)
Fri, 0647° / 32°0.02
47 °
Sitka, Friday, 6 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.02 in
Chance of precipitation7%
Record high70° (2016)
Record low6° (1991)
Sat, 0747° / 31°0.05
47 °
Sitka, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high47°
Average low31°
Average precipitation0.05 in
Chance of precipitation12%
Record high71° (2006)
Record low3° (1991)
Sun, 0846° / 31°0.04
46 °
Sitka, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high46°
Average low31°
Average precipitation0.04 in
Chance of precipitation15%
Record high71° (1978)
Record low7° (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 Sitka, 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 Sitka, 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.