Monthly outlook for Salem, SD: average high 61.8°, average low 43.9°. That is 1.9° above the climate normal for October. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 3 days and 1.0 inches. The warmest day looks like 10 October (89°), the coolest 17 October (24.8°).
61.8°/43.9°
Average high / low
+1.9°
Above normal
0 / 3
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 October – 19 October
63.1°
59.4°
+2°
20 October – 29 October
59.7°
55.6°
+2.3°
30 October – 8 November
at normal
49.7°
—
October records over 66 years
91.4°3 October 2025All-time high
11.7°27 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Canistota (10 mi).
Sun, 1182° / 64°0
82 °
Salem, Sunday, 11 October
Overcast. High 82°, low 64°.
Pressure29.68 inHg
Wind11.9 mph S
Humidity41%
Visibility6.2 mi
Dew point52°
Mon, 1276° / 57°0
76 °
Salem, Monday, 12 October
Overcast. High 76°, low 57°.
Pressure29.68 inHg
Wind4.1 mph NE
Humidity62%
Visibility6.2 mi
Dew point58°
Tue, 1360° / 50°0
60 °
Salem, Tuesday, 13 October
Partly cloudy. High 60°, low 50°.
Pressure30.00 inHg
Wind8.3 mph N
Humidity59%
Visibility6.2 mi
Dew point41°
Wed, 1462° / 46°0
62 °
Salem, Wednesday, 14 October
Mostly clear. High 62°, low 46°.
Pressure30.24 inHg
Wind3.2 mph N
Humidity58%
Visibility6.2 mi
Dew point41°
Thu, 1562° / 50°0
62 °
Salem, Thursday, 15 October
Overcast. High 62°, low 50°.
Pressure30.30 inHg
Wind9.7 mph N
Humidity48%
Visibility—
Dew point40°
Fri, 1652° / 31°0
52 °
Salem, Friday, 16 October
Overcast. High 52°, low 31°.
Pressure30.45 inHg
Wind24.5 mph NW
Humidity55%
Visibility—
Dew point25°
Sat, 1739° / 25°0
39 °
Salem, Saturday, 17 October
Clear. High 39°, low 25°.
Pressure30.62 inHg
Wind18.2 mph NW
Humidity38%
Visibility—
Dew point11°
Sun, 1847° / 26°0
47 °
Salem, Sunday, 18 October
Mostly clear. High 47°, low 26°.
Pressure30.47 inHg
Wind19.1 mph S
Humidity29%
Visibility—
Dew point11°
Mon, 1961° / 38°0
61 °
Salem, Monday, 19 October
Clear. High 61°, low 38°.
Pressure30.18 inHg
Wind18.3 mph S
Humidity42%
Visibility—
Dew point30°
Tue, 2070° / 46°0
70 °
Salem, Tuesday, 20 October
Clear. High 70°, low 46°.
Pressure30.03 inHg
Wind14.1 mph SE
Humidity39%
Visibility—
Dew point38°
Wed, 2168° / 50°0
68 °
Salem, Wednesday, 21 October
Overcast. High 68°, low 50°.
Pressure29.94 inHg
Wind13.7 mph S
Humidity47%
Visibility—
Dew point40°
Thu, 2253° / 45°0.02
53 °
Salem, Thursday, 22 October
Light rain. High 53°, low 45°.
Pressure30.36 inHg
Wind17.1 mph NW
Humidity48%
Visibility—
Dew point32°
Fri, 2350° / 37°0
50 °
Salem, Friday, 23 October
Clear. High 50°, low 37°.
Pressure30.45 inHg
Wind11.5 mph N
Humidity51%
Visibility—
Dew point29°
Sat, 2453° / 34°0
53 °
Salem, Saturday, 24 October
Clear. High 53°, low 34°.
Pressure30.27 inHg
Wind10.9 mph S
Humidity49%
Visibility—
Dew point29°
Sun, 2563° / 40°0
63 °
Salem, Sunday, 25 October
Overcast. High 63°, low 40°.
Pressure30.12 inHg
Wind12.3 mph S
Humidity42%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2656° / 38°0.03
56 °
Salem, Monday, 26 October
Climate normal for this date — 60-year average.
Average high56°
Average low38°
Average precipitation0.03 in
Chance of precipitation15%
Record high77° (1989)
Record low14° (2020)
Tue, 2754° / 38°0.08
54 °
Salem, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high54°
Average low38°
Average precipitation0.08 in
Chance of precipitation23%
Record high76° (1999)
Record low12° (2020)
Wed, 2853° / 37°0.03
53 °
Salem, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.03 in
Chance of precipitation15%
Record high75° (2024)
Record low21° (2017)
Thu, 2953° / 37°0.07
53 °
Salem, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.07 in
Chance of precipitation23%
Record high69° (2024)
Record low20° (1991)
Fri, 3051° / 37°0.13
51 °
Salem, Friday, 30 October
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.13 in
Chance of precipitation27%
Record high71° (1965)
Record low17° (1991)
Sat, 3151° / 35°0.07
51 °
Salem, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high51°
Average low35°
Average precipitation0.07 in
Chance of precipitation22%
Record high73° (1990)
Record low13° (2002)
Sun, 0150° / 35°0.06
50 °
Salem, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.06 in
Chance of precipitation17%
Record high71° (1990)
Record low14° (2002)
Mon, 0250° / 34°0.04
50 °
Salem, Monday, 2 November
Climate normal for this date — 60-year average.
Average high50°
Average low34°
Average precipitation0.04 in
Chance of precipitation15%
Record high73° (2005)
Record low9° (1991)
Tue, 0349° / 34°0.04
49 °
Salem, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high49°
Average low34°
Average precipitation0.04 in
Chance of precipitation20%
Record high72° (1978)
Record low4° (1991)
Wed, 0449° / 32°0.01
49 °
Salem, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high49°
Average low32°
Average precipitation0.01 in
Chance of precipitation8%
Record high73° (2020)
Record low-14° (1991)
Thu, 0550° / 33°0.04
50 °
Salem, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high50°
Average low33°
Average precipitation0.04 in
Chance of precipitation20%
Record high73° (2001)
Record low7° (1990)
Fri, 0649° / 33°0.03
49 °
Salem, Friday, 6 November
Climate normal for this date — 60-year average.
Average high49°
Average low33°
Average precipitation0.03 in
Chance of precipitation18%
Record high76° (2020)
Record low2° (1991)
Sat, 0749° / 32°0.03
49 °
Salem, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high49°
Average low32°
Average precipitation0.03 in
Chance of precipitation12%
Record high73° (2020)
Record low-11° (1991)
Sun, 0848° / 32°0.06
48 °
Salem, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high48°
Average low32°
Average precipitation0.06 in
Chance of precipitation17%
Record high76° (1999)
Record low0° (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 Salem, 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 Salem, 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.