Monthly outlook for Tyndall, SD: average high 60.9°, average low 46°. That is 0.9° above the climate normal for October. Precipitation is expected on 3 days (about 2.1 inches), against a normal of 3 days and 0.9 inches. The warmest day looks like 20 October (72.6°), the coolest 24 October (39°).
60.9°/46°
Average high / low
+0.9°
Above normal
3 / 3
Wet days / normal
2.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 October – 22 October
63°
60.6°
+1.3°
23 October – 1 November
57.4°
55.6°
+1°
2 November – 11 November
at normal
50.1°
—
October records over 66 years
90.7°3 October 2025All-time high
8.8°26 October 2020All-time low
Wed, 1458° / 42°0.01
58 °
Tyndall, Wednesday, 14 October
Light rain. High 58°, low 42°.
Pressure30.24 inHg
Wind6.2 mph NE
Humidity57%
Visibility6.2 mi
Dew point41°
Thu, 1561° / 48°0.89
61 °
Tyndall, Thursday, 15 October
Rain. High 61°, low 48°.
Pressure30.24 inHg
Wind9.6 mph N
Humidity94%
Visibility2.8 mi
Dew point48°
Fri, 1653° / 41°0
53 °
Tyndall, Friday, 16 October
Clear. High 53°, low 41°.
Pressure30.68 inHg
Wind12.8 mph NW
Humidity53%
Visibility6.2 mi
Dew point31°
Sat, 1765° / 40°0
65 °
Tyndall, Saturday, 17 October
Clear. High 65°, low 40°.
Pressure30.21 inHg
Wind17.6 mph S
Humidity41%
Visibility—
Dew point33°
Sun, 1860° / 49°0.01
60 °
Tyndall, Sunday, 18 October
Light rain. High 60°, low 49°.
Pressure29.91 inHg
Wind16.2 mph SW
Humidity56%
Visibility—
Dew point41°
Mon, 1967° / 47°0
67 °
Tyndall, Monday, 19 October
Clear. High 67°, low 47°.
Pressure30.06 inHg
Wind10.2 mph SE
Humidity57%
Visibility—
Dew point45°
Tue, 2073° / 50°0
73 °
Tyndall, Tuesday, 20 October
Light rain. High 73°, low 50°.
Pressure29.94 inHg
Wind16.6 mph SE
Humidity55%
Visibility—
Dew point49°
Wed, 2171° / 65°0.28
71 °
Tyndall, Wednesday, 21 October
Light rain. High 71°, low 65°.
Pressure29.80 inHg
Wind18.4 mph S
Humidity84%
Visibility—
Dew point62°
Thu, 2267° / 51°0.86
67 °
Tyndall, Thursday, 22 October
Rain. High 67°, low 51°.
Pressure29.65 inHg
Wind21.6 mph W
Humidity88%
Visibility—
Dew point62°
Fri, 2354° / 45°0.03
54 °
Tyndall, Friday, 23 October
Light rain. High 54°, low 45°.
Pressure30.00 inHg
Wind22.3 mph W
Humidity53%
Visibility—
Dew point35°
Sat, 2454° / 39°0
54 °
Tyndall, Saturday, 24 October
Clear. High 54°, low 39°.
Pressure30.33 inHg
Wind9.8 mph W
Humidity50%
Visibility—
Dew point31°
Sun, 2556° / 41°0
56 °
Tyndall, Sunday, 25 October
Partly cloudy. High 56°, low 41°.
Pressure30.21 inHg
Wind7.9 mph W
Humidity60%
Visibility—
Dew point38°
Mon, 2657° / 42°0
57 °
Tyndall, Monday, 26 October
Partly cloudy. High 57°, low 42°.
Pressure30.36 inHg
Wind6.5 mph SW
Humidity56%
Visibility—
Dew point38°
Tue, 2762° / 43°0
62 °
Tyndall, Tuesday, 27 October
Mostly clear. High 62°, low 43°.
Pressure30.15 inHg
Wind13.1 mph W
Humidity52%
Visibility—
Dew point39°
Wed, 2860° / 44°0
60 °
Tyndall, Wednesday, 28 October
Overcast. High 60°, low 44°.
Pressure30.06 inHg
Wind7.9 mph SW
Humidity51%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2955° / 38°0.07
55 °
Tyndall, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high55°
Average low38°
Average precipitation0.07 in
Chance of precipitation23%
Record high73° (1978)
Record low21° (1991)
Fri, 3053° / 38°0.14
53 °
Tyndall, Friday, 30 October
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.14 in
Chance of precipitation28%
Record high74° (1965)
Record low17° (1991)
Sat, 3153° / 36°0.06
53 °
Tyndall, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high53°
Average low36°
Average precipitation0.06 in
Chance of precipitation23%
Record high78° (2016)
Record low13° (2002)
Sun, 0152° / 37°0.05
52 °
Tyndall, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.05 in
Chance of precipitation18%
Record high74° (1990)
Record low14° (2002)
Mon, 0252° / 36°0.04
52 °
Tyndall, Monday, 2 November
Climate normal for this date — 60-year average.
Average high52°
Average low36°
Average precipitation0.04 in
Chance of precipitation17%
Record high76° (2005)
Record low11° (1991)
Tue, 0352° / 36°0.05
52 °
Tyndall, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high52°
Average low36°
Average precipitation0.05 in
Chance of precipitation20%
Record high74° (1978)
Record low5° (1991)
Wed, 0452° / 34°0.01
52 °
Tyndall, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high52°
Average low34°
Average precipitation0.01 in
Chance of precipitation10%
Record high73° (1978)
Record low-10° (1991)
Thu, 0552° / 35°0.04
52 °
Tyndall, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high52°
Average low35°
Average precipitation0.04 in
Chance of precipitation15%
Record high74° (2001)
Record low14° (1990)
Fri, 0651° / 35°0.03
51 °
Tyndall, Friday, 6 November
Climate normal for this date — 60-year average.
Average high51°
Average low35°
Average precipitation0.03 in
Chance of precipitation12%
Record high78° (2020)
Record low8° (1991)
Sat, 0752° / 34°0.03
52 °
Tyndall, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high52°
Average low34°
Average precipitation0.03 in
Chance of precipitation12%
Record high75° (2020)
Record low-7° (1991)
Sun, 0851° / 34°0.06
51 °
Tyndall, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high51°
Average low34°
Average precipitation0.06 in
Chance of precipitation15%
Record high78° (1999)
Record low-1° (1991)
Mon, 0948° / 34°0.12
48 °
Tyndall, Monday, 9 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.12 in
Chance of precipitation25%
Record high72° (1999)
Record low13° (2018)
Tue, 1047° / 30°0.05
47 °
Tyndall, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high47°
Average low30°
Average precipitation0.05 in
Chance of precipitation20%
Record high66° (2016)
Record low6° (1986)
Wed, 1145° / 29°0.05
45 °
Tyndall, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high45°
Average low29°
Average precipitation0.05 in
Chance of precipitation17%
Record high73° (2005)
Record low-4° (1986)
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 Tyndall, 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 Tyndall, 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.