Monthly outlook for Terry, SD: average high 52.4°, average low 33.7°. That is 2.3° below the climate normal for October. Precipitation is expected on 5 days (about 2.1 inches), against a normal of 4 days and 1.1 inches. The warmest day looks like 9 October (75.1°), the coolest 16 October (19.6°).
52.4°/33.7°
Average high / low
−2.3°
Below normal
5 / 4
Wet days / normal
2.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 October – 17 October
54.4°
57°
-1.4°
18 October – 27 October
49.1°
54.9°
-3.2°
28 October – 6 November
at normal
48.6°
—
October records over 66 years
86.9°4 October 1963All-time high
-5.4°30 October 1991All-time low
Climate normals and records are computed from the nearest reference point — Mountain Plains (10 mi).
Fri, 0975° / 40°0
75 °
Terry, Friday, 9 October
Partly cloudy. High 75°, low 40°.
Pressure29.68 inHg
Wind11.4 mph SW
Humidity18%
Visibility6.2 mi
Dew point27°
Sat, 1075° / 48°0.01
75 °
Terry, Saturday, 10 October
Light rain. High 75°, low 48°.
Pressure29.53 inHg
Wind9.2 mph SW
Humidity19%
Visibility6.2 mi
Dew point30°
Sun, 1148° / 39°0.05
48 °
Terry, Sunday, 11 October
Light rain. High 48°, low 39°.
Pressure29.85 inHg
Wind6.7 mph N
Humidity82%
Visibility6.2 mi
Dew point42°
Mon, 1253° / 38°0.02
53 °
Terry, Monday, 12 October
Light rain. High 53°, low 38°.
Pressure29.83 inHg
Wind6.3 mph NW
Humidity66%
Visibility3.4 mi
Dew point44°
Tue, 1351° / 37°0.13
51 °
Terry, Tuesday, 13 October
Rain. High 51°, low 37°.
Pressure30.00 inHg
Wind7.7 mph S
Humidity74%
Visibility—
Dew point40°
Wed, 1460° / 44°0.4
60 °
Terry, Wednesday, 14 October
Rain. High 60°, low 44°.
Pressure29.47 inHg
Wind7.1 mph W
Humidity58%
Visibility—
Dew point44°
Thu, 1545° / 23°1.33
45 °
Terry, Thursday, 15 October
Snow. High 45°, low 23°.
Pressure30.03 inHg
Wind20.2 mph NW
Humidity98%
Visibility—
Dew point28°
Fri, 1631° / 20°0.12
31 °
Terry, Friday, 16 October
Snow. High 31°, low 20°.
Pressure30.65 inHg
Wind15.7 mph NW
Humidity92%
Visibility—
Dew point26°
Sat, 1741° / 21°0.01
41 °
Terry, Saturday, 17 October
Light rain. High 41°, low 21°.
Pressure30.30 inHg
Wind16.8 mph S
Humidity89%
Visibility—
Dew point35°
Sun, 1840° / 35°0.01
40 °
Terry, Sunday, 18 October
Light rain. High 40°, low 35°.
Pressure30.00 inHg
Wind13 mph W
Humidity78%
Visibility—
Dew point33°
Mon, 1953° / 34°0
53 °
Terry, Monday, 19 October
Clear. High 53°, low 34°.
Pressure30.03 inHg
Wind15 mph W
Humidity50%
Visibility—
Dew point29°
Tue, 2054° / 36°0
54 °
Terry, Tuesday, 20 October
Overcast. High 54°, low 36°.
Pressure30.18 inHg
Wind7.2 mph NW
Humidity39%
Visibility—
Dew point26°
Wed, 2156° / 31°0
56 °
Terry, Wednesday, 21 October
Partly cloudy. High 56°, low 31°.
Pressure29.97 inHg
Wind21.7 mph NW
Humidity29%
Visibility—
Dew point22°
Thu, 2242° / 27°0
42 °
Terry, Thursday, 22 October
Mostly clear. High 42°, low 27°.
Pressure30.21 inHg
Wind23.5 mph NW
Humidity36%
Visibility—
Dew point13°
Fri, 2349° / 31°0.01
49 °
Terry, Friday, 23 October
Light snow. High 49°, low 31°.
Pressure29.50 inHg
Wind12.7 mph NW
Humidity29%
Visibility—
Dew point18°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2454° / 36°0.04
54 °
Terry, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high54°
Average low36°
Average precipitation0.04 in
Chance of precipitation23%
Record high73° (1965)
Record low13° (2020)
Sun, 2555° / 36°0.03
55 °
Terry, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high55°
Average low36°
Average precipitation0.03 in
Chance of precipitation15%
Record high75° (1989)
Record low2° (2020)
Mon, 2654° / 35°0.07
54 °
Terry, Monday, 26 October
Climate normal for this date — 60-year average.
Average high54°
Average low35°
Average precipitation0.07 in
Chance of precipitation22%
Record high72° (1960)
Record low-3° (2020)
Tue, 2752° / 33°0.05
52 °
Terry, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high52°
Average low33°
Average precipitation0.05 in
Chance of precipitation27%
Record high75° (2016)
Record low14° (2023)
Wed, 2852° / 34°0.06
52 °
Terry, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high52°
Average low34°
Average precipitation0.06 in
Chance of precipitation22%
Record high74° (2016)
Record low7° (1991)
Thu, 2950° / 33°0.11
50 °
Terry, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high50°
Average low33°
Average precipitation0.11 in
Chance of precipitation37%
Record high76° (1968)
Record low-2° (1991)
Fri, 3048° / 31°0.04
48 °
Terry, Friday, 30 October
Climate normal for this date — 60-year average.
Average high48°
Average low31°
Average precipitation0.04 in
Chance of precipitation27%
Record high73° (1968)
Record low-5° (1991)
Sat, 3148° / 31°0.05
48 °
Terry, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high48°
Average low31°
Average precipitation0.05 in
Chance of precipitation23%
Record high71° (1999)
Record low1° (1991)
Sun, 0148° / 31°0.08
48 °
Terry, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high48°
Average low31°
Average precipitation0.08 in
Chance of precipitation25%
Record high70° (1965)
Record low0° (2002)
Mon, 0247° / 31°0.05
47 °
Terry, Monday, 2 November
Climate normal for this date — 60-year average.
Average high47°
Average low31°
Average precipitation0.05 in
Chance of precipitation25%
Record high73° (2008)
Record low-8° (1991)
Tue, 0347° / 31°0.04
47 °
Terry, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high47°
Average low31°
Average precipitation0.04 in
Chance of precipitation23%
Record high71° (2020)
Record low-1° (1991)
Wed, 0450° / 31°0.02
50 °
Terry, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high50°
Average low31°
Average precipitation0.02 in
Chance of precipitation17%
Record high71° (1978)
Record low8° (1967)
Thu, 0548° / 31°0.04
48 °
Terry, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high48°
Average low31°
Average precipitation0.04 in
Chance of precipitation25%
Record high72° (2020)
Record low3° (2003)
Fri, 0648° / 30°0.06
48 °
Terry, Friday, 6 November
Climate normal for this date — 60-year average.
Average high48°
Average low30°
Average precipitation0.06 in
Chance of precipitation18%
Record high70° (2020)
Record low7° (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 Terry, 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 Terry, 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.