Monthly outlook for Jamesville, SD: average high 66.9°, average low 49.3°. That is 5.6° above the climate normal for October. Precipitation is expected on 4 days (about 1.1 inches), against a normal of 3 days and 0.9 inches. The warmest day looks like 23 October (75.8°), the coolest 17 October (34.7°).
66.9°/49.3°
Average high / low
+5.6°
Above normal
4 / 3
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
67.3°
58.7°
+4.8°
27 October – 5 November
66.1°
52.8°
+7.4°
6 November – 15 November
at normal
47.1°
—
October records over 66 years
92.5°3 October 2025All-time high
12.6°27 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Menno (10 mi).
Sun, 1866° / 45°0
66 °
Jamesville, Sunday, 18 October
Clear. High 66°, low 45°.
Pressure30.09 inHg
Wind12.5 mph S
Humidity49%
Visibility6.2 mi
Dew point40°
Mon, 1962° / 44°0
62 °
Jamesville, Monday, 19 October
Overcast. High 62°, low 44°.
Pressure30.24 inHg
Wind7.6 mph SE
Humidity64%
Visibility6.2 mi
Dew point44°
Tue, 2067° / 47°0
67 °
Jamesville, Tuesday, 20 October
Clear. High 67°, low 47°.
Pressure30.21 inHg
Wind10.1 mph SE
Humidity66%
Visibility6.2 mi
Dew point49°
Wed, 2170° / 52°0
70 °
Jamesville, Wednesday, 21 October
Clear. High 70°, low 52°.
Pressure30.15 inHg
Wind3.6 mph SE
Humidity69%
Visibility6.2 mi
Dew point53°
Thu, 2273° / 53°0
73 °
Jamesville, Thursday, 22 October
Clear. High 73°, low 53°.
Pressure30.18 inHg
Wind12.2 mph SE
Humidity63%
Visibility—
Dew point55°
Fri, 2376° / 59°0.08
76 °
Jamesville, Friday, 23 October
Light rain. High 76°, low 59°.
Pressure29.88 inHg
Wind20.3 mph S
Humidity62%
Visibility—
Dew point58°
Sat, 2471° / 60°0.24
71 °
Jamesville, Saturday, 24 October
Light rain. High 71°, low 60°.
Pressure30.00 inHg
Wind13.8 mph S
Humidity69%
Visibility—
Dew point57°
Sun, 2562° / 51°0
62 °
Jamesville, Sunday, 25 October
Overcast. High 62°, low 51°.
Pressure30.12 inHg
Wind10.2 mph NW
Humidity57%
Visibility—
Dew point43°
Mon, 2662° / 48°0
62 °
Jamesville, Monday, 26 October
Overcast. High 62°, low 48°.
Pressure30.24 inHg
Wind8.2 mph NE
Humidity49%
Visibility—
Dew point39°
Tue, 2761° / 42°0
61 °
Jamesville, Tuesday, 27 October
Clear. High 61°, low 42°.
Pressure30.30 inHg
Wind13.9 mph SE
Humidity39%
Visibility—
Dew point31°
Wed, 2861° / 51°0.72
61 °
Jamesville, Wednesday, 28 October
Rain. High 61°, low 51°.
Pressure29.85 inHg
Wind20.9 mph SE
Humidity92%
Visibility—
Dew point54°
Thu, 2972° / 53°0.04
72 °
Jamesville, Thursday, 29 October
Light rain. High 72°, low 53°.
Pressure29.71 inHg
Wind11.9 mph SW
Humidity38%
Visibility—
Dew point40°
Fri, 3065° / 52°0
65 °
Jamesville, Friday, 30 October
Overcast. High 65°, low 52°.
Pressure29.62 inHg
Wind22.4 mph NW
Humidity45%
Visibility—
Dew point40°
Sat, 3167° / 44°0
67 °
Jamesville, Saturday, 31 October
Clear. High 67°, low 44°.
Pressure29.85 inHg
Wind13.4 mph S
Humidity36%
Visibility—
Dew point33°
Sun, 0170° / 53°0
70 °
Jamesville, Sunday, 1 November
Overcast. High 70°, low 53°.
Pressure29.80 inHg
Wind15.1 mph S
Humidity51%
Visibility—
Dew point45°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0251° / 36°0.04
51 °
Jamesville, Monday, 2 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.04 in
Chance of precipitation17%
Record high76° (2005)
Record low11° (1991)
Tue, 0351° / 35°0.05
51 °
Jamesville, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high51°
Average low35°
Average precipitation0.05 in
Chance of precipitation20%
Record high74° (1978)
Record low4° (1991)
Wed, 0451° / 33°0.01
51 °
Jamesville, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high51°
Average low33°
Average precipitation0.01 in
Chance of precipitation8%
Record high72° (2015)
Record low-11° (1991)
Thu, 0551° / 34°0.04
51 °
Jamesville, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high51°
Average low34°
Average precipitation0.04 in
Chance of precipitation18%
Record high74° (2001)
Record low10° (1990)
Fri, 0651° / 34°0.03
51 °
Jamesville, Friday, 6 November
Climate normal for this date — 60-year average.
Average high51°
Average low34°
Average precipitation0.03 in
Chance of precipitation17%
Record high78° (2020)
Record low5° (1991)
Sat, 0751° / 33°0.03
51 °
Jamesville, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high51°
Average low33°
Average precipitation0.03 in
Chance of precipitation12%
Record high74° (2020)
Record low-10° (1991)
Sun, 0850° / 33°0.06
50 °
Jamesville, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high50°
Average low33°
Average precipitation0.06 in
Chance of precipitation15%
Record high78° (1999)
Record low-3° (1991)
Mon, 0947° / 33°0.12
47 °
Jamesville, Monday, 9 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.12 in
Chance of precipitation23%
Record high72° (1999)
Record low13° (2018)
Tue, 1046° / 30°0.05
46 °
Jamesville, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high46°
Average low30°
Average precipitation0.05 in
Chance of precipitation22%
Record high65° (2016)
Record low4° (1986)
Wed, 1144° / 28°0.05
44 °
Jamesville, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high44°
Average low28°
Average precipitation0.05 in
Chance of precipitation18%
Record high71° (2005)
Record low-5° (1986)
Thu, 1244° / 28°0.05
44 °
Jamesville, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high44°
Average low28°
Average precipitation0.05 in
Chance of precipitation23%
Record high69° (2005)
Record low4° (1986)
Fri, 1347° / 29°0.04
47 °
Jamesville, Friday, 13 November
Climate normal for this date — 60-year average.
Average high47°
Average low29°
Average precipitation0.04 in
Chance of precipitation18%
Record high71° (1999)
Record low-11° (1986)
Sat, 1446° / 31°0.02
46 °
Jamesville, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high46°
Average low31°
Average precipitation0.02 in
Chance of precipitation17%
Record high76° (2025)
Record low7° (2000)
Sun, 1546° / 30°0.07
46 °
Jamesville, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high46°
Average low30°
Average precipitation0.07 in
Chance of precipitation22%
Record high68° (2001)
Record low2° (2000)
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 Jamesville, 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 Jamesville, 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.