Monthly outlook for Big Spring, WI: average high 64.4°, average low 47.3°. That is 3.4° above the climate normal for October. Precipitation is expected on 6 days (about 1.1 inches), against a normal of 5 days and 1.4 inches. The warmest day looks like 15 October (80.1°), the coolest 18 October (38°).
64.4°/47.3°
Average high / low
+3.4°
Above normal
6 / 5
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 October – 17 October
68.3°
59.5°
+4.9°
18 October – 27 October
57.9°
55.3°
+1.4°
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° / 42°0
71 °
Big Spring, Friday, 9 October
Clear. High 71°, low 42°.
Pressure30.12 inHg
Wind6.6 mph SE
Humidity47%
Visibility6.2 mi
Dew point45°
Sat, 1079° / 54°0
79 °
Big Spring, Saturday, 10 October
Clear. High 79°, low 54°.
Pressure29.97 inHg
Wind10 mph S
Humidity58%
Visibility6.2 mi
Dew point60°
Sun, 1176° / 55°0
76 °
Big Spring, Sunday, 11 October
Clear. High 76°, low 55°.
Pressure29.94 inHg
Wind7.5 mph S
Humidity55%
Visibility6.2 mi
Dew point55°
Mon, 1280° / 61°0.31
80 °
Big Spring, Monday, 12 October
Rain. High 80°, low 61°.
Pressure29.77 inHg
Wind7.2 mph SW
Humidity62%
Visibility6.2 mi
Dew point61°
Tue, 1358° / 51°0.16
58 °
Big Spring, Tuesday, 13 October
Rain. High 58°, low 51°.
Pressure29.97 inHg
Wind10.1 mph NE
Humidity73%
Visibility—
Dew point49°
Wed, 1455° / 47°0.23
55 °
Big Spring, Wednesday, 14 October
Light rain. High 55°, low 47°.
Pressure30.03 inHg
Wind14.2 mph E
Humidity72%
Visibility—
Dew point45°
Thu, 1580° / 53°0.23
80 °
Big Spring, Thursday, 15 October
Light rain. High 80°, low 53°.
Pressure29.71 inHg
Wind19.1 mph SW
Humidity73%
Visibility—
Dew point66°
Fri, 1663° / 47°0
63 °
Big Spring, Friday, 16 October
Overcast. High 63°, low 47°.
Pressure30.27 inHg
Wind18.5 mph NW
Humidity58%
Visibility—
Dew point38°
Sat, 1752° / 39°0
52 °
Big Spring, Saturday, 17 October
Clear. High 52°, low 39°.
Pressure30.68 inHg
Wind12 mph N
Humidity41%
Visibility—
Dew point26°
Sun, 1855° / 38°0
55 °
Big Spring, Sunday, 18 October
Overcast. High 55°, low 38°.
Pressure30.47 inHg
Wind8.6 mph S
Humidity48%
Visibility—
Dew point32°
Mon, 1954° / 46°0.11
54 °
Big Spring, Monday, 19 October
Light rain. High 54°, low 46°.
Pressure30.15 inHg
Wind10.2 mph SE
Humidity77%
Visibility—
Dew point41°
Tue, 2067° / 47°0
67 °
Big Spring, Tuesday, 20 October
Clear. High 67°, low 47°.
Pressure30.03 inHg
Wind12.5 mph SW
Humidity53%
Visibility—
Dew point45°
Wed, 2163° / 47°0
63 °
Big Spring, Wednesday, 21 October
Clear. High 63°, low 47°.
Pressure30.00 inHg
Wind12.7 mph W
Humidity43%
Visibility—
Dew point38°
Thu, 2256° / 45°0.09
56 °
Big Spring, Thursday, 22 October
Light rain. High 56°, low 45°.
Pressure29.77 inHg
Wind21.7 mph W
Humidity47%
Visibility—
Dew point35°
Fri, 2353° / 41°0
53 °
Big Spring, Friday, 23 October
Overcast. High 53°, low 41°.
Pressure30.12 inHg
Wind18.8 mph NW
Humidity40%
Visibility—
Dew point26°
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.