Monthly outlook for Williams, MN: average high 55.1°, average low 42.5°. That is 4° above the climate normal for October. Precipitation is expected on 6 days (about 0.7 inches), against a normal of 5 days and 1.3 inches. The warmest day looks like 21 October (62.8°), the coolest 17 October (32.3°).
55.1°/42.5°
Average high / low
+4°
Above normal
6 / 5
Wet days / normal
0.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
54°
49.1°
+2.7°
21 October – 30 October
57°
44.9°
+6.7°
31 October – 9 November
at normal
39.5°
—
October records over 66 years
82.9°3 October 2025All-time high
18°27 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Arnesén (14 mi).
Mon, 1248° / 44°0.21
48 °
Williams, Monday, 12 October
Light rain. High 48°, low 44°.
Pressure29.91 inHg
Wind11 mph E
Humidity90%
Visibility3.7 mi
Dew point44°
Tue, 1349° / 44°0.08
49 °
Williams, Tuesday, 13 October
Light rain. High 49°, low 44°.
Pressure29.97 inHg
Wind8.3 mph NW
Humidity96%
Visibility6.2 mi
Dew point45°
Wed, 1450° / 39°0
50 °
Williams, Wednesday, 14 October
Overcast. High 50°, low 39°.
Pressure30.27 inHg
Wind4.7 mph NW
Humidity66%
Visibility6.2 mi
Dew point37°
Thu, 1557° / 38°0
57 °
Williams, Thursday, 15 October
Mostly clear. High 57°, low 38°.
Pressure30.06 inHg
Wind17.1 mph NW
Humidity54%
Visibility—
Dew point38°
Fri, 1651° / 39°0.03
51 °
Williams, Friday, 16 October
Light rain. High 51°, low 39°.
Pressure30.59 inHg
Wind18.1 mph NW
Humidity56%
Visibility—
Dew point31°
Sat, 1748° / 32°0
48 °
Williams, Saturday, 17 October
Overcast. High 48°, low 32°.
Pressure30.39 inHg
Wind13.2 mph S
Humidity41%
Visibility—
Dew point20°
Sun, 1861° / 42°0
61 °
Williams, Sunday, 18 October
Overcast. High 61°, low 42°.
Pressure29.65 inHg
Wind17 mph SW
Humidity41%
Visibility—
Dew point32°
Mon, 1956° / 44°0
56 °
Williams, Monday, 19 October
Overcast. High 56°, low 44°.
Pressure30.18 inHg
Wind11.8 mph W
Humidity45%
Visibility—
Dew point32°
Tue, 2060° / 43°0
60 °
Williams, Tuesday, 20 October
Overcast. High 60°, low 43°.
Pressure30.03 inHg
Wind14.4 mph SE
Humidity50%
Visibility—
Dew point38°
Wed, 2163° / 49°0.06
63 °
Williams, Wednesday, 21 October
Light rain. High 63°, low 49°.
Pressure29.88 inHg
Wind11.8 mph SE
Humidity64%
Visibility—
Dew point47°
Thu, 2260° / 43°0
60 °
Williams, Thursday, 22 October
Overcast. High 60°, low 43°.
Pressure30.15 inHg
Wind5.8 mph S
Humidity44%
Visibility—
Dew point33°
Fri, 2362° / 46°0.13
62 °
Williams, Friday, 23 October
Light rain. High 62°, low 46°.
Pressure30.15 inHg
Wind6 mph SW
Humidity67%
Visibility—
Dew point46°
Sat, 2461° / 48°0.02
61 °
Williams, Saturday, 24 October
Light rain. High 61°, low 48°.
Pressure30.00 inHg
Wind13.1 mph S
Humidity60%
Visibility—
Dew point46°
Sun, 2551° / 42°0.05
51 °
Williams, Sunday, 25 October
Light rain. High 51°, low 42°.
Pressure30.00 inHg
Wind13.9 mph NW
Humidity61%
Visibility—
Dew point35°
Mon, 2645° / 38°0.01
45 °
Williams, Monday, 26 October
Light rain. High 45°, low 38°.
Pressure29.97 inHg
Wind16.7 mph N
Humidity68%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2745° / 37°0.09
45 °
Williams, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high45°
Average low37°
Average precipitation0.09 in
Chance of precipitation37%
Record high61° (1989)
Record low18° (2020)
Wed, 2844° / 36°0.09
44 °
Williams, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high44°
Average low36°
Average precipitation0.09 in
Chance of precipitation30%
Record high62° (2024)
Record low21° (1988)
Thu, 2943° / 35°0.04
43 °
Williams, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high43°
Average low35°
Average precipitation0.04 in
Chance of precipitation23%
Record high55° (1977)
Record low19° (2023)
Fri, 3043° / 35°0.09
43 °
Williams, Friday, 30 October
Climate normal for this date — 60-year average.
Average high43°
Average low35°
Average precipitation0.09 in
Chance of precipitation35%
Record high55° (1974)
Record low18° (1991)
Sat, 3142° / 35°0.08
42 °
Williams, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high42°
Average low35°
Average precipitation0.08 in
Chance of precipitation30%
Record high53° (1999)
Record low18° (1996)
Sun, 0142° / 33°0.07
42 °
Williams, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high42°
Average low33°
Average precipitation0.07 in
Chance of precipitation35%
Record high56° (2022)
Record low11° (1984)
Mon, 0241° / 33°0.07
41 °
Williams, Monday, 2 November
Climate normal for this date — 60-year average.
Average high41°
Average low33°
Average precipitation0.07 in
Chance of precipitation27%
Record high67° (2022)
Record low9° (1984)
Tue, 0340° / 33°0.02
40 °
Williams, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high40°
Average low33°
Average precipitation0.02 in
Chance of precipitation25%
Record high62° (2022)
Record low12° (1991)
Wed, 0440° / 32°0.04
40 °
Williams, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high40°
Average low32°
Average precipitation0.04 in
Chance of precipitation27%
Record high58° (2020)
Record low8° (1991)
Thu, 0540° / 32°0.04
40 °
Williams, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high40°
Average low32°
Average precipitation0.04 in
Chance of precipitation18%
Record high55° (1975)
Record low12° (1991)
Fri, 0639° / 31°0.07
39 °
Williams, Friday, 6 November
Climate normal for this date — 60-year average.
Average high39°
Average low31°
Average precipitation0.07 in
Chance of precipitation27%
Record high58° (2016)
Record low4° (1991)
Sat, 0738° / 30°0.07
38 °
Williams, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high38°
Average low30°
Average precipitation0.07 in
Chance of precipitation40%
Record high56° (2016)
Record low7° (1991)
Sun, 0838° / 30°0.07
38 °
Williams, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high38°
Average low30°
Average precipitation0.07 in
Chance of precipitation25%
Record high64° (2020)
Record low6° (2003)
Mon, 0936° / 29°0.06
36 °
Williams, Monday, 9 November
Climate normal for this date — 60-year average.
Average high36°
Average low29°
Average precipitation0.06 in
Chance of precipitation28%
Record high62° (2020)
Record low9° (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 Williams, MN 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 Williams, MN 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.