Monthly outlook for Ephraim, WI: average high 58°, average low 49.7°. That is 2.4° above the climate normal for October. Precipitation is expected on 7 days (about 2.9 inches), against a normal of 6 days and 1.8 inches. The warmest day looks like 10 October (70.9°), the coolest 18 October (35°).
58°/49.7°
Average high / low
+2.4°
Above normal
7 / 6
Wet days / normal
2.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 October – 18 October
59.6°
54.9°
+2.6°
19 October – 28 October
55.4°
51.1°
+2.4°
29 October – 7 November
at normal
47.4°
—
October records over 66 years
76.8°3 October 2025All-time high
28°31 October 1996All-time low
Climate normals and records are computed from the nearest reference point — Sister Bay (3 mi).
Sat, 1071° / 54°0
71 °
Ephraim, Saturday, 10 October
Mostly clear. High 71°, low 54°.
Pressure30.00 inHg
Wind20.7 mph S
Humidity72%
Visibility6.2 mi
Dew point56°
Sun, 1168° / 53°0
68 °
Ephraim, Sunday, 11 October
Clear. High 68°, low 53°.
Pressure29.91 inHg
Wind13.8 mph S
Humidity75%
Visibility6.2 mi
Dew point55°
Mon, 1269° / 62°0
69 °
Ephraim, Monday, 12 October
Overcast. High 69°, low 62°.
Pressure29.74 inHg
Wind8.1 mph S
Humidity87%
Visibility6.2 mi
Dew point62°
Tue, 1362° / 56°0.23
62 °
Ephraim, Tuesday, 13 October
Rain. High 62°, low 56°.
Pressure29.88 inHg
Wind18.7 mph N
Humidity82%
Visibility6.2 mi
Dew point53°
Wed, 1459° / 54°0
59 °
Ephraim, Wednesday, 14 October
Overcast. High 59°, low 54°.
Pressure30.15 inHg
Wind17.6 mph N
Humidity62%
Visibility—
Dew point44°
Thu, 1555° / 53°0.54
55 °
Ephraim, Thursday, 15 October
Rain. High 55°, low 53°.
Pressure30.39 inHg
Wind21.8 mph SE
Humidity57%
Visibility—
Dew point40°
Fri, 1657° / 46°0.16
57 °
Ephraim, Friday, 16 October
Light rain. High 57°, low 46°.
Pressure29.53 inHg
Wind29.3 mph W
Humidity80%
Visibility—
Dew point50°
Sat, 1742° / 38°0.1
42 °
Ephraim, Saturday, 17 October
Snow. High 42°, low 38°.
Pressure30.24 inHg
Wind35.8 mph N
Humidity62%
Visibility—
Dew point29°
Sun, 1849° / 35°0
49 °
Ephraim, Sunday, 18 October
Overcast. High 49°, low 35°.
Pressure30.30 inHg
Wind24.7 mph SW
Humidity44%
Visibility—
Dew point24°
Mon, 1951° / 42°0
51 °
Ephraim, Monday, 19 October
Clear. High 51°, low 42°.
Pressure30.39 inHg
Wind20.1 mph SW
Humidity65%
Visibility—
Dew point38°
Tue, 2055° / 50°0
55 °
Ephraim, Tuesday, 20 October
Overcast. High 55°, low 50°.
Pressure30.30 inHg
Wind19.5 mph S
Humidity65%
Visibility—
Dew point42°
Wed, 2159° / 55°0.12
59 °
Ephraim, Wednesday, 21 October
Rain. High 59°, low 55°.
Pressure30.03 inHg
Wind21 mph S
Humidity70%
Visibility—
Dew point49°
Thu, 2257° / 53°1.58
57 °
Ephraim, Thursday, 22 October
Rain. High 57°, low 53°.
Pressure29.80 inHg
Wind18.9 mph S
Humidity97%
Visibility—
Dew point55°
Fri, 2355° / 52°0.01
55 °
Ephraim, Friday, 23 October
Light rain. High 55°, low 52°.
Pressure29.94 inHg
Wind17.9 mph N
Humidity75%
Visibility—
Dew point46°
Sat, 2455° / 48°0.12
55 °
Ephraim, Saturday, 24 October
Light rain. High 55°, low 48°.
Pressure29.71 inHg
Wind21.2 mph W
Humidity76%
Visibility—
Dew point47°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2551° / 45°0.1
51 °
Ephraim, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high51°
Average low45°
Average precipitation0.1 in
Chance of precipitation35%
Record high65° (1963)
Record low33° (1962)
Mon, 2650° / 45°0.07
50 °
Ephraim, Monday, 26 October
Climate normal for this date — 60-year average.
Average high50°
Average low45°
Average precipitation0.07 in
Chance of precipitation25%
Record high66° (1963)
Record low32° (1962)
Tue, 2750° / 44°0.11
50 °
Ephraim, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high50°
Average low44°
Average precipitation0.11 in
Chance of precipitation30%
Record high61° (1971)
Record low31° (2020)
Wed, 2849° / 43°0.08
49 °
Ephraim, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high49°
Average low43°
Average precipitation0.08 in
Chance of precipitation27%
Record high59° (1984)
Record low32° (1980)
Thu, 2949° / 43°0.06
49 °
Ephraim, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high49°
Average low43°
Average precipitation0.06 in
Chance of precipitation23%
Record high66° (2024)
Record low30° (1988)
Fri, 3050° / 43°0.1
50 °
Ephraim, Friday, 30 October
Climate normal for this date — 60-year average.
Average high50°
Average low43°
Average precipitation0.1 in
Chance of precipitation30%
Record high67° (2024)
Record low30° (1988)
Sat, 3149° / 43°0.11
49 °
Ephraim, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high49°
Average low43°
Average precipitation0.11 in
Chance of precipitation40%
Record high63° (1971)
Record low28° (1996)
Sun, 0148° / 42°0.15
48 °
Ephraim, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high48°
Average low42°
Average precipitation0.15 in
Chance of precipitation38%
Record high62° (2022)
Record low30° (2019)
Mon, 0247° / 41°0.15
47 °
Ephraim, Monday, 2 November
Climate normal for this date — 60-year average.
Average high47°
Average low41°
Average precipitation0.15 in
Chance of precipitation30%
Record high60° (2022)
Record low24° (1984)
Tue, 0347° / 40°0.07
47 °
Ephraim, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high47°
Average low40°
Average precipitation0.07 in
Chance of precipitation27%
Record high60° (2022)
Record low22° (1991)
Wed, 0446° / 40°0.11
46 °
Ephraim, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high46°
Average low40°
Average precipitation0.11 in
Chance of precipitation33%
Record high64° (2022)
Record low24° (1991)
Thu, 0547° / 40°0.12
47 °
Ephraim, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high47°
Average low40°
Average precipitation0.12 in
Chance of precipitation32%
Record high62° (2020)
Record low24° (1991)
Fri, 0646° / 40°0.11
46 °
Ephraim, Friday, 6 November
Climate normal for this date — 60-year average.
Average high46°
Average low40°
Average precipitation0.11 in
Chance of precipitation30%
Record high64° (2020)
Record low20° (1991)
Sat, 0746° / 39°0.04
46 °
Ephraim, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high46°
Average low39°
Average precipitation0.04 in
Chance of precipitation27%
Record high63° (2020)
Record low18° (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 Ephraim, 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 Ephraim, 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.