Monthly outlook for Big Spring, WI: average high 67.4°, average low 49.9°. That is 5.1° above the climate normal for October. Precipitation is expected on 3 days (about 0.4 inches), against a normal of 5 days and 1.4 inches. The warmest day looks like 15 October (80.4°), the coolest 17 October (40.6°).
67.4°/49.9°
Average high / low
+5.1°
Above normal
3 / 5
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 October – 17 October
69.5°
59.5°
+5.5°
18 October – 27 October
64.1°
55.3°
+4.8°
28 October – 6 November
at normal
50.8°
—
October records over 66 years
84.9°3 October 2025All-time high
21.2°30 October 1988All-time low
Climate normals and records are computed from the nearest reference point — Lake Delton (9 mi).
Fri, 0971° / 47°0.02
71 °
Big Spring, Friday, 9 October
Light rain. High 71°, low 47°.
Pressure30.12 inHg
Wind6.2 mph SE
Humidity55%
Visibility6.2 mi
Dew point47°
Sat, 1080° / 56°0
80 °
Big Spring, Saturday, 10 October
Clear. High 80°, low 56°.
Pressure29.97 inHg
Wind10.1 mph S
Humidity58%
Visibility6.2 mi
Dew point60°
Sun, 1176° / 58°0
76 °
Big Spring, Sunday, 11 October
Clear. High 76°, low 58°.
Pressure29.97 inHg
Wind8.4 mph S
Humidity50%
Visibility6.2 mi
Dew point54°
Mon, 1279° / 59°0
79 °
Big Spring, Monday, 12 October
Overcast. High 79°, low 59°.
Pressure29.74 inHg
Wind8.8 mph SW
Humidity53%
Visibility—
Dew point56°
Tue, 1369° / 51°0
69 °
Big Spring, Tuesday, 13 October
Overcast. High 69°, low 51°.
Pressure29.97 inHg
Wind12.5 mph NW
Humidity58%
Visibility—
Dew point46°
Wed, 1454° / 43°0.01
54 °
Big Spring, Wednesday, 14 October
Light rain. High 54°, low 43°.
Pressure30.09 inHg
Wind15 mph SE
Humidity65%
Visibility—
Dew point39°
Thu, 1580° / 57°0.06
80 °
Big Spring, Thursday, 15 October
Light rain. High 80°, low 57°.
Pressure29.65 inHg
Wind21.3 mph SW
Humidity65%
Visibility—
Dew point64°
Fri, 1664° / 50°0
64 °
Big Spring, Friday, 16 October
Mostly clear. High 64°, low 50°.
Pressure30.03 inHg
Wind18.7 mph W
Humidity53%
Visibility—
Dew point42°
Sat, 1753° / 41°0
53 °
Big Spring, Saturday, 17 October
Overcast. High 53°, low 41°.
Pressure30.50 inHg
Wind8.4 mph E
Humidity56%
Visibility—
Dew point35°
Sun, 1861° / 43°0.02
61 °
Big Spring, Sunday, 18 October
Light rain. High 61°, low 43°.
Pressure30.24 inHg
Wind6 mph W
Humidity57%
Visibility—
Dew point41°
Mon, 1955° / 49°0.24
55 °
Big Spring, Monday, 19 October
Rain. High 55°, low 49°.
Pressure30.18 inHg
Wind5.1 mph SW
Humidity88%
Visibility—
Dew point50°
Tue, 2059° / 53°0.01
59 °
Big Spring, Tuesday, 20 October
Light rain. High 59°, low 53°.
Pressure30.12 inHg
Wind4.2 mph W
Humidity86%
Visibility—
Dew point53°
Wed, 2166° / 48°0
66 °
Big Spring, Wednesday, 21 October
Partly cloudy. High 66°, low 48°.
Pressure29.94 inHg
Wind8.1 mph SW
Humidity56%
Visibility—
Dew point47°
Thu, 2267° / 51°0.06
67 °
Big Spring, Thursday, 22 October
Light rain. High 67°, low 51°.
Pressure29.59 inHg
Wind17 mph S
Humidity57%
Visibility—
Dew point49°
Fri, 2376° / 50°0
76 °
Big Spring, Friday, 23 October
Clear. High 76°, low 50°.
Pressure29.71 inHg
Wind14.4 mph S
Humidity64%
Visibility—
Dew point58°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2455° / 42°0.12
55 °
Big Spring, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high55°
Average low42°
Average precipitation0.12 in
Chance of precipitation37%
Record high75° (1963)
Record low25° (1981)
Sun, 2554° / 40°0.05
54 °
Big Spring, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.05 in
Chance of precipitation23%
Record high74° (1989)
Record low26° (2019)
Mon, 2653° / 40°0.09
53 °
Big Spring, Monday, 26 October
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.09 in
Chance of precipitation18%
Record high73° (1989)
Record low24° (1962)
Tue, 2754° / 40°0.06
54 °
Big Spring, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.06 in
Chance of precipitation22%
Record high72° (2014)
Record low22° (2020)
Wed, 2852° / 39°0.06
52 °
Big Spring, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high52°
Average low39°
Average precipitation0.06 in
Chance of precipitation25%
Record high69° (1974)
Record low26° (1969)
Thu, 2953° / 39°0.05
53 °
Big Spring, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.05 in
Chance of precipitation20%
Record high79° (2024)
Record low25° (1980)
Fri, 3054° / 40°0.09
54 °
Big Spring, Friday, 30 October
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.09 in
Chance of precipitation25%
Record high77° (2024)
Record low21° (1988)
Sat, 3152° / 39°0.11
52 °
Big Spring, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high52°
Average low39°
Average precipitation0.11 in
Chance of precipitation37%
Record high67° (2000)
Record low23° (2019)
Sun, 0151° / 38°0.2
51 °
Big Spring, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.2 in
Chance of precipitation32%
Record high71° (2000)
Record low14° (2019)
Mon, 0250° / 37°0.11
50 °
Big Spring, Monday, 2 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.11 in
Chance of precipitation33%
Record high69° (1990)
Record low17° (1991)
Tue, 0349° / 37°0.06
49 °
Big Spring, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.06 in
Chance of precipitation25%
Record high70° (1964)
Record low14° (1991)
Wed, 0449° / 37°0.09
49 °
Big Spring, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.09 in
Chance of precipitation28%
Record high71° (2008)
Record low11° (1991)
Thu, 0549° / 36°0.08
49 °
Big Spring, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.08 in
Chance of precipitation28%
Record high68° (2020)
Record low17° (1991)
Fri, 0649° / 35°0.09
49 °
Big Spring, Friday, 6 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.09 in
Chance of precipitation30%
Record high69° (2020)
Record low10° (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 Big Spring, WI 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 Big Spring, WI 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.