Monthly outlook for Folsom, WI: average high 59.7°, average low 42.8°. That is 1.7° above the climate normal for October. Precipitation is expected on 2 days (about 0.5 inches), against a normal of 5 days and 1.4 inches. The warmest day looks like 10 October (83.4°), the coolest 18 October (21.1°).
59.7°/42.8°
Average high / low
+1.7°
Above normal
2 / 5
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 October – 19 October
61.5°
57.7°
+2.1°
20 October – 29 October
56.8°
53.9°
+1.6°
30 October – 8 November
at normal
49°
—
October records over 66 years
87.1°3 October 2025All-time high
22.5°30 October 1988All-time low
Climate normals and records are computed from the nearest reference point — Seneca (13 mi).
Sun, 1180° / 54°0
80 °
Folsom, Sunday, 11 October
Clear. High 80°, low 54°.
Pressure29.88 inHg
Wind9.1 mph S
Humidity58%
Visibility6.2 mi
Dew point56°
Mon, 1280° / 64°0
80 °
Folsom, Monday, 12 October
Clear. High 80°, low 64°.
Pressure29.74 inHg
Wind10 mph S
Humidity63%
Visibility6.2 mi
Dew point63°
Tue, 1371° / 59°0
71 °
Folsom, Tuesday, 13 October
Overcast. High 71°, low 59°.
Pressure29.85 inHg
Wind8.7 mph NW
Humidity76%
Visibility6.2 mi
Dew point56°
Wed, 1462° / 51°0
62 °
Folsom, Wednesday, 14 October
Overcast. High 62°, low 51°.
Pressure30.15 inHg
Wind7.4 mph N
Humidity65%
Visibility6.2 mi
Dew point48°
Thu, 1559° / 49°0
59 °
Folsom, Thursday, 15 October
Overcast. High 59°, low 49°.
Pressure30.30 inHg
Wind8.3 mph E
Humidity68%
Visibility—
Dew point46°
Fri, 1652° / 32°0.04
52 °
Folsom, Friday, 16 October
Snow. High 52°, low 32°.
Pressure30.06 inHg
Wind19.5 mph W
Humidity61%
Visibility—
Dew point32°
Sat, 1736° / 27°0.02
36 °
Folsom, Saturday, 17 October
Light snow. High 36°, low 27°.
Pressure30.36 inHg
Wind18.1 mph NW
Humidity58%
Visibility—
Dew point21°
Sun, 1843° / 21°0
43 °
Folsom, Sunday, 18 October
Clear. High 43°, low 21°.
Pressure30.62 inHg
Wind6.2 mph N
Humidity39%
Visibility—
Dew point16°
Mon, 1948° / 26°0
48 °
Folsom, Monday, 19 October
Overcast. High 48°, low 26°.
Pressure30.47 inHg
Wind16.5 mph S
Humidity33%
Visibility—
Dew point17°
Tue, 2058° / 34°0
58 °
Folsom, Tuesday, 20 October
Clear. High 58°, low 34°.
Pressure30.24 inHg
Wind13.9 mph S
Humidity46%
Visibility—
Dew point33°
Wed, 2162° / 40°0
62 °
Folsom, Wednesday, 21 October
Mostly clear. High 62°, low 40°.
Pressure30.12 inHg
Wind16.9 mph S
Humidity45%
Visibility—
Dew point37°
Thu, 2261° / 47°0.37
61 °
Folsom, Thursday, 22 October
Rain. High 61°, low 47°.
Pressure30.15 inHg
Wind13.4 mph NW
Humidity56%
Visibility—
Dew point43°
Fri, 2346° / 40°0.02
46 °
Folsom, Friday, 23 October
Light rain. High 46°, low 40°.
Pressure30.27 inHg
Wind14.3 mph NW
Humidity65%
Visibility—
Dew point34°
Sat, 2455° / 42°0.03
55 °
Folsom, Saturday, 24 October
Light rain. High 55°, low 42°.
Pressure30.27 inHg
Wind12 mph NW
Humidity70%
Visibility—
Dew point41°
Sun, 2560° / 42°0
60 °
Folsom, Sunday, 25 October
Overcast. High 60°, low 42°.
Pressure30.21 inHg
Wind3.6 mph NW
Humidity58%
Visibility—
Dew point42°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2653° / 40°0.08
53 °
Folsom, Monday, 26 October
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.08 in
Chance of precipitation25%
Record high72° (1989)
Record low24° (1962)
Tue, 2753° / 40°0.06
53 °
Folsom, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.06 in
Chance of precipitation17%
Record high71° (2014)
Record low24° (2020)
Wed, 2851° / 39°0.07
51 °
Folsom, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high51°
Average low39°
Average precipitation0.07 in
Chance of precipitation27%
Record high68° (2016)
Record low26° (1969)
Thu, 2952° / 39°0.08
52 °
Folsom, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high52°
Average low39°
Average precipitation0.08 in
Chance of precipitation25%
Record high78° (2024)
Record low25° (1988)
Fri, 3053° / 39°0.08
53 °
Folsom, Friday, 30 October
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.08 in
Chance of precipitation32%
Record high75° (2024)
Record low22° (1988)
Sat, 3151° / 39°0.11
51 °
Folsom, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high51°
Average low39°
Average precipitation0.11 in
Chance of precipitation33%
Record high68° (1968)
Record low26° (1996)
Sun, 0150° / 37°0.18
50 °
Folsom, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.18 in
Chance of precipitation30%
Record high71° (2000)
Record low23° (2023)
Mon, 0249° / 37°0.07
49 °
Folsom, Monday, 2 November
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.07 in
Chance of precipitation30%
Record high70° (2022)
Record low15° (1991)
Tue, 0349° / 36°0.06
49 °
Folsom, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.06 in
Chance of precipitation22%
Record high69° (2008)
Record low11° (1991)
Wed, 0448° / 36°0.09
48 °
Folsom, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high48°
Average low36°
Average precipitation0.09 in
Chance of precipitation30%
Record high69° (2008)
Record low6° (1991)
Thu, 0548° / 35°0.08
48 °
Folsom, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.08 in
Chance of precipitation23%
Record high67° (2020)
Record low16° (1991)
Fri, 0648° / 35°0.07
48 °
Folsom, Friday, 6 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.07 in
Chance of precipitation28%
Record high68° (2020)
Record low8° (1991)
Sat, 0747° / 34°0.02
47 °
Folsom, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.02 in
Chance of precipitation13%
Record high67° (2020)
Record low-5° (1991)
Sun, 0847° / 34°0.04
47 °
Folsom, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.04 in
Chance of precipitation23%
Record high69° (2020)
Record low3° (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 Folsom, 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 Folsom, 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.