Monthly outlook for Merrill, WI: average high 59°, average low 45.1°. That is 3.4° above the climate normal for October. Precipitation is expected on 4 days (about 1.6 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 12 October (82.2°), the coolest 26 October (29.8°).
59°/45.1°
Average high / low
+3.4°
Above normal
4 / 5
Wet days / normal
1.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
61.9°
54.1°
+4.3°
21 October – 30 October
54.1°
50.2°
+2.2°
31 October – 9 November
at normal
44.9°
—
October records over 66 years
83.8°1 October 2023All-time high
16.2°24 October 2002All-time low
Mon, 1282° / 62°0.28
82 °
Merrill, Monday, 12 October
Rain. High 82°, low 62°.
Pressure29.71 inHg
Wind3.5 mph SW
Humidity60%
Visibility6.2 mi
Dew point62°
Tue, 1363° / 52°0.48
63 °
Merrill, Tuesday, 13 October
Heavy rain. High 63°, low 52°.
Pressure29.85 inHg
Wind6.1 mph NW
Humidity68%
Visibility6.2 mi
Dew point51°
Wed, 1459° / 49°0
59 °
Merrill, Wednesday, 14 October
Overcast. High 59°, low 49°.
Pressure30.18 inHg
Wind5.4 mph N
Humidity64%
Visibility6.2 mi
Dew point43°
Thu, 1556° / 45°0.02
56 °
Merrill, Thursday, 15 October
Light rain. High 56°, low 45°.
Pressure30.15 inHg
Wind5.2 mph SE
Humidity73%
Visibility6.2 mi
Dew point45°
Fri, 1654° / 41°0
54 °
Merrill, Friday, 16 October
Clear. High 54°, low 41°.
Pressure30.50 inHg
Wind16.8 mph NW
Humidity46%
Visibility—
Dew point31°
Sat, 1747° / 33°0
47 °
Merrill, Saturday, 17 October
Overcast. High 47°, low 33°.
Pressure30.50 inHg
Wind10 mph SW
Humidity28%
Visibility—
Dew point14°
Sun, 1855° / 33°0
55 °
Merrill, Sunday, 18 October
Mostly clear. High 55°, low 33°.
Pressure30.09 inHg
Wind20.1 mph SW
Humidity34%
Visibility—
Dew point23°
Mon, 1963° / 38°0
63 °
Merrill, Monday, 19 October
Mostly clear. High 63°, low 38°.
Pressure30.21 inHg
Wind10.7 mph SW
Humidity44%
Visibility—
Dew point36°
Tue, 2061° / 41°0
61 °
Merrill, Tuesday, 20 October
Mostly clear. High 61°, low 41°.
Pressure30.27 inHg
Wind10.5 mph SE
Humidity47%
Visibility—
Dew point37°
Wed, 2156° / 51°0.41
56 °
Merrill, Wednesday, 21 October
Rain. High 56°, low 51°.
Pressure29.97 inHg
Wind16.7 mph S
Humidity91%
Visibility—
Dew point53°
Thu, 2267° / 55°0.01
67 °
Merrill, Thursday, 22 October
Light rain. High 67°, low 55°.
Pressure30.09 inHg
Wind10.3 mph S
Humidity86%
Visibility—
Dew point57°
Fri, 2362° / 53°0.34
62 °
Merrill, Friday, 23 October
Light rain. High 62°, low 53°.
Pressure29.88 inHg
Wind9.7 mph N
Humidity98%
Visibility—
Dew point61°
Sat, 2449° / 41°0.02
49 °
Merrill, Saturday, 24 October
Light rain. High 49°, low 41°.
Pressure30.09 inHg
Wind13.6 mph N
Humidity82%
Visibility—
Dew point40°
Sun, 2549° / 39°0
49 °
Merrill, Sunday, 25 October
Overcast. High 49°, low 39°.
Pressure30.03 inHg
Wind12.2 mph W
Humidity53%
Visibility—
Dew point30°
Mon, 2642° / 30°0.02
42 °
Merrill, Monday, 26 October
Snow. High 42°, low 30°.
Pressure29.88 inHg
Wind15.7 mph NW
Humidity57%
Visibility—
Dew point28°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2750° / 36°0.09
50 °
Merrill, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.09 in
Chance of precipitation30%
Record high67° (1989)
Record low20° (2020)
Wed, 2848° / 36°0.08
48 °
Merrill, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high48°
Average low36°
Average precipitation0.08 in
Chance of precipitation25%
Record high65° (1974)
Record low25° (1969)
Thu, 2948° / 35°0.07
48 °
Merrill, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.07 in
Chance of precipitation23%
Record high76° (2024)
Record low18° (1988)
Fri, 3049° / 36°0.07
49 °
Merrill, Friday, 30 October
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.07 in
Chance of precipitation30%
Record high73° (2024)
Record low17° (1988)
Sat, 3148° / 36°0.09
48 °
Merrill, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high48°
Average low36°
Average precipitation0.09 in
Chance of precipitation35%
Record high64° (2000)
Record low20° (1996)
Sun, 0147° / 35°0.13
47 °
Merrill, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.13 in
Chance of precipitation30%
Record high67° (1990)
Record low20° (2023)
Mon, 0246° / 34°0.07
46 °
Merrill, Monday, 2 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.07 in
Chance of precipitation28%
Record high67° (2022)
Record low15° (1991)
Tue, 0346° / 33°0.05
46 °
Merrill, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.05 in
Chance of precipitation20%
Record high67° (1964)
Record low13° (1991)
Wed, 0445° / 33°0.06
45 °
Merrill, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.06 in
Chance of precipitation23%
Record high67° (2008)
Record low11° (1991)
Thu, 0545° / 33°0.08
45 °
Merrill, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.08 in
Chance of precipitation32%
Record high66° (2016)
Record low14° (1991)
Fri, 0644° / 32°0.06
44 °
Merrill, Friday, 6 November
Climate normal for this date — 60-year average.
Average high44°
Average low32°
Average precipitation0.06 in
Chance of precipitation28%
Record high67° (2020)
Record low5° (1991)
Sat, 0744° / 31°0.03
44 °
Merrill, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.03 in
Chance of precipitation20%
Record high67° (2020)
Record low-4° (1991)
Sun, 0844° / 31°0.04
44 °
Merrill, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.04 in
Chance of precipitation22%
Record high67° (2020)
Record low-5° (1991)
Mon, 0943° / 31°0.08
43 °
Merrill, Monday, 9 November
Climate normal for this date — 60-year average.
Average high43°
Average low31°
Average precipitation0.08 in
Chance of precipitation42%
Record high67° (2020)
Record low7° (2003)
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 Merrill, 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 Merrill, 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.