Monthly outlook for Boylston, WI: average high 58.3°, average low 45.8°. That is 3.7° above the climate normal for October. Precipitation is expected on 4 days (about 2.3 inches), against a normal of 5 days and 1.3 inches. The warmest day looks like 12 October (67.7°), the coolest 26 October (37.6°).
58.3°/45.8°
Average high / low
+3.7°
Above normal
4 / 5
Wet days / normal
2.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
60.3°
52.7°
+4.2°
22 October – 31 October
54.9°
48.8°
+3.4°
1 November – 10 November
at normal
42.7°
—
October records over 66 years
84.2°4 October 2025All-time high
17.2°27 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Wrenshall (12 mi).
Tue, 1358° / 49°0.03
58 °
Boylston, Tuesday, 13 October
Light rain. High 58°, low 49°.
Pressure29.88 inHg
Wind5.3 mph W
Humidity73%
Visibility6.2 mi
Dew point47°
Wed, 1456° / 48°0
56 °
Boylston, Wednesday, 14 October
Overcast. High 56°, low 48°.
Pressure30.24 inHg
Wind4.9 mph NW
Humidity59%
Visibility6.2 mi
Dew point40°
Thu, 1560° / 47°0.01
60 °
Boylston, Thursday, 15 October
Light rain. High 60°, low 47°.
Pressure30.09 inHg
Wind6.4 mph SW
Humidity70%
Visibility6.2 mi
Dew point45°
Fri, 1652° / 43°0.07
52 °
Boylston, Friday, 16 October
Light rain. High 52°, low 43°.
Pressure30.47 inHg
Wind11.7 mph NW
Humidity53%
Visibility6.2 mi
Dew point32°
Sat, 1760° / 39°0
60 °
Boylston, Saturday, 17 October
Clear. High 60°, low 39°.
Pressure30.12 inHg
Wind13 mph SW
Humidity41%
Visibility—
Dew point31°
Sun, 1867° / 49°0
67 °
Boylston, Sunday, 18 October
Overcast. High 67°, low 49°.
Pressure29.85 inHg
Wind13 mph SW
Humidity44%
Visibility—
Dew point38°
Mon, 1961° / 45°0
61 °
Boylston, Monday, 19 October
Overcast. High 61°, low 45°.
Pressure30.12 inHg
Wind7.5 mph NE
Humidity51%
Visibility—
Dew point40°
Tue, 2056° / 46°0
56 °
Boylston, Tuesday, 20 October
Overcast. High 56°, low 46°.
Pressure30.15 inHg
Wind7.3 mph SE
Humidity74%
Visibility—
Dew point46°
Wed, 2165° / 51°0.02
65 °
Boylston, Wednesday, 21 October
Light rain. High 65°, low 51°.
Pressure30.00 inHg
Wind13.3 mph S
Humidity87%
Visibility—
Dew point57°
Thu, 2266° / 64°0.35
66 °
Boylston, Thursday, 22 October
Rain. High 66°, low 64°.
Pressure29.65 inHg
Wind16.7 mph S
Humidity89%
Visibility—
Dew point62°
Fri, 2365° / 45°0.95
65 °
Boylston, Friday, 23 October
Heavy rain. High 65°, low 45°.
Pressure29.77 inHg
Wind17.9 mph W
Humidity75%
Visibility—
Dew point39°
Sat, 2445° / 41°0
45 °
Boylston, Saturday, 24 October
Overcast. High 45°, low 41°.
Pressure30.33 inHg
Wind13.1 mph W
Humidity62%
Visibility—
Dew point32°
Sun, 2547° / 39°0
47 °
Boylston, Sunday, 25 October
Overcast. High 47°, low 39°.
Pressure30.24 inHg
Wind7.2 mph W
Humidity46%
Visibility—
Dew point26°
Mon, 2650° / 38°0
50 °
Boylston, Monday, 26 October
Overcast. High 50°, low 38°.
Pressure29.94 inHg
Wind8.1 mph W
Humidity70%
Visibility—
Dew point38°
Tue, 2756° / 44°0.04
56 °
Boylston, Tuesday, 27 October
Light rain. High 56°, low 44°.
Pressure29.56 inHg
Wind17.7 mph NW
Humidity65%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2848° / 35°0.06
48 °
Boylston, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.06 in
Chance of precipitation23%
Record high68° (2024)
Record low24° (1969)
Thu, 2947° / 35°0.07
47 °
Boylston, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.07 in
Chance of precipitation28%
Record high63° (2024)
Record low19° (1988)
Fri, 3047° / 35°0.08
47 °
Boylston, Friday, 30 October
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.08 in
Chance of precipitation32%
Record high62° (2007)
Record low19° (1988)
Sat, 3146° / 34°0.09
46 °
Boylston, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.09 in
Chance of precipitation30%
Record high63° (1999)
Record low18° (1996)
Sun, 0145° / 33°0.1
45 °
Boylston, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.1 in
Chance of precipitation27%
Record high66° (1990)
Record low17° (1984)
Mon, 0245° / 33°0.07
45 °
Boylston, Monday, 2 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.07 in
Chance of precipitation22%
Record high70° (2022)
Record low11° (1984)
Tue, 0344° / 32°0.04
44 °
Boylston, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high44°
Average low32°
Average precipitation0.04 in
Chance of precipitation17%
Record high65° (1978)
Record low11° (1991)
Wed, 0443° / 31°0.06
43 °
Boylston, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high43°
Average low31°
Average precipitation0.06 in
Chance of precipitation23%
Record high65° (2020)
Record low1° (1991)
Thu, 0543° / 31°0.04
43 °
Boylston, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high43°
Average low31°
Average precipitation0.04 in
Chance of precipitation20%
Record high65° (2016)
Record low5° (1991)
Fri, 0643° / 31°0.07
43 °
Boylston, Friday, 6 November
Climate normal for this date — 60-year average.
Average high43°
Average low31°
Average precipitation0.07 in
Chance of precipitation22%
Record high69° (2020)
Record low2° (1991)
Sat, 0743° / 30°0.04
43 °
Boylston, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high43°
Average low30°
Average precipitation0.04 in
Chance of precipitation20%
Record high68° (2020)
Record low-2° (1991)
Sun, 0842° / 30°0.04
42 °
Boylston, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high42°
Average low30°
Average precipitation0.04 in
Chance of precipitation18%
Record high68° (2020)
Record low-1° (2003)
Mon, 0941° / 29°0.08
41 °
Boylston, Monday, 9 November
Climate normal for this date — 60-year average.
Average high41°
Average low29°
Average precipitation0.08 in
Chance of precipitation28%
Record high65° (2020)
Record low8° (2017)
Tue, 1038° / 28°0.1
38 °
Boylston, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high38°
Average low28°
Average precipitation0.1 in
Chance of precipitation28%
Record high60° (2010)
Record low2° (2017)
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 Boylston, 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 Boylston, 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.