As of 10:22 CDT

Weather in Grellton, WI

48°Current weather

Grellton, Saturday, 17 October, 10:22

Clear. Feels like 45°. High 52°, low 34°.

Pressure30.53 inHg
Wind6.9 mph S
Humidity58%
Visibility6.2 mi
Dew point34°

Monthly outlook for Grellton, WI: average high 63.6°, average low 46.4°. That is 4.8° above the climate normal for October. Precipitation is expected on 4 days (about 0.7 inches), against a normal of 5 days and 1.4 inches. The warmest day looks like 23 October (69.2°), the coolest 17 October (34.1°).

63.6°/46.4°
Average high / low
+4.8°
Above normal
4 / 5
Wet days / normal
0.7 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
17 October – 26 October63.8°55.9°+4.4°
27 October – 5 November63.2°51.9°+6.3°
6 November – 15 Novemberat normal45.8°—

October records over 66 years

84.9°3 October 2025All-time high
20.7°30 October 1988All-time low

Climate normals and records are computed from the nearest reference point — Reeseville (12 mi).

Sun, 1861° / 43°0Clear
61 °Clear

Grellton, Sunday, 18 October

Clear. High 61°, low 43°.

Pressure30.33 inHg
Wind15.4 mph SW
Humidity54%
Visibility6.2 mi
Dew point40°
Mon, 1963° / 42°0Clear
63 °Clear

Grellton, Monday, 19 October

Clear. High 63°, low 42°.

Pressure30.39 inHg
Wind4.8 mph SW
Humidity61%
Visibility6.2 mi
Dew point46°
Tue, 2064° / 42°0Partly cloudy
64 °Partly cloudy

Grellton, Tuesday, 20 October

Partly cloudy. High 64°, low 42°.

Pressure30.39 inHg
Wind5.2 mph SE
Humidity56%
Visibility6.2 mi
Dew point46°
Wed, 2166° / 45°0Clear
66 °Clear

Grellton, Wednesday, 21 October

Clear. High 66°, low 45°.

Pressure30.24 inHg
Wind6 mph SW
Humidity53%
Visibility—
Dew point45°
Thu, 2269° / 48°0Mostly clear
69 °Mostly clear

Grellton, Thursday, 22 October

Mostly clear. High 69°, low 48°.

Pressure30.27 inHg
Wind6.6 mph SE
Humidity54%
Visibility—
Dew point48°
Fri, 2369° / 51°0Mostly clear
69 °Mostly clear

Grellton, Friday, 23 October

Mostly clear. High 69°, low 51°.

Pressure30.18 inHg
Wind10.4 mph S
Humidity40%
Visibility—
Dew point42°
Sat, 2468° / 57°0Overcast
68 °Overcast

Grellton, Saturday, 24 October

Overcast. High 68°, low 57°.

Pressure30.09 inHg
Wind17.3 mph S
Humidity43%
Visibility—
Dew point43°
Sun, 2562° / 54°0Partly cloudy
62 °Partly cloudy

Grellton, Sunday, 25 October

Partly cloudy. High 62°, low 54°.

Pressure30.00 inHg
Wind17 mph W
Humidity51%
Visibility—
Dew point42°
Mon, 2663° / 43°0Clear
63 °Clear

Grellton, Monday, 26 October

Clear. High 63°, low 43°.

Pressure30.18 inHg
Wind9.8 mph SE
Humidity59%
Visibility—
Dew point44°
Tue, 2765° / 48°0.08Light rain
65 °Light rain

Grellton, Tuesday, 27 October

Light rain. High 65°, low 48°.

Pressure29.94 inHg
Wind17.5 mph SW
Humidity82%
Visibility—
Dew point55°
Wed, 2869° / 56°0.24Light rain
69 °Light rain

Grellton, Wednesday, 28 October

Light rain. High 69°, low 56°.

Pressure29.80 inHg
Wind20.1 mph SW
Humidity70%
Visibility—
Dew point57°
Thu, 2960° / 44°0.01Light rain
60 °Light rain

Grellton, Thursday, 29 October

Light rain. High 60°, low 44°.

Pressure30.09 inHg
Wind14.1 mph W
Humidity43%
Visibility—
Dew point35°
Fri, 3066° / 50°0.32Light rain
66 °Light rain

Grellton, Friday, 30 October

Light rain. High 66°, low 50°.

Pressure29.74 inHg
Wind20.6 mph S
Humidity94%
Visibility—
Dew point56°
Sat, 3168° / 46°0.1Light rain
68 °Light rain

Grellton, Saturday, 31 October

Light rain. High 68°, low 46°.

Pressure29.53 inHg
Wind28.9 mph SW
Humidity55%
Visibility—
Dew point39°
Sun, 0152° / 38°0Overcast
52 °Overcast

Grellton, Sunday, 1 November

Overcast. High 52°, low 38°.

Pressure30.15 inHg
Wind14 mph W
Humidity37%
Visibility—
Dew point23°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0251° / 38°0.12Climate normal
51 °Climate normal

Grellton, Monday, 2 November

Climate normal for this date — 60-year average.

Average high51°
Average low38°
Average precipitation0.12 in
Chance of precipitation33%
Record high71° (1961)
Record low19° (1991)
Tue, 0350° / 37°0.05Climate normal
50 °Climate normal

Grellton, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high50°
Average low37°
Average precipitation0.05 in
Chance of precipitation27%
Record high70° (2008)
Record low16° (1991)
Wed, 0449° / 37°0.08Climate normal
49 °Climate normal

Grellton, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high49°
Average low37°
Average precipitation0.08 in
Chance of precipitation25%
Record high71° (2008)
Record low13° (1991)
Thu, 0549° / 37°0.09Climate normal
49 °Climate normal

Grellton, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high49°
Average low37°
Average precipitation0.09 in
Chance of precipitation28%
Record high68° (2015)
Record low18° (1991)
Fri, 0649° / 35°0.08Climate normal
49 °Climate normal

Grellton, Friday, 6 November

Climate normal for this date — 60-year average.

Average high49°
Average low35°
Average precipitation0.08 in
Chance of precipitation30%
Record high69° (1975)
Record low15° (1991)
Sat, 0748° / 35°0.03Climate normal
48 °Climate normal

Grellton, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high48°
Average low35°
Average precipitation0.03 in
Chance of precipitation17%
Record high68° (2020)
Record low7° (1991)
Sun, 0848° / 35°0.04Climate normal
48 °Climate normal

Grellton, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high48°
Average low35°
Average precipitation0.04 in
Chance of precipitation18%
Record high70° (2020)
Record low6° (2019)
Mon, 0948° / 35°0.1Climate normal
48 °Climate normal

Grellton, Monday, 9 November

Climate normal for this date — 60-year average.

Average high48°
Average low35°
Average precipitation0.1 in
Chance of precipitation35%
Record high73° (2020)
Record low19° (1991)
Tue, 1046° / 34°0.11Climate normal
46 °Climate normal

Grellton, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high46°
Average low34°
Average precipitation0.11 in
Chance of precipitation35%
Record high71° (2022)
Record low13° (2017)
Wed, 1144° / 31°0.07Climate normal
44 °Climate normal

Grellton, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high44°
Average low31°
Average precipitation0.07 in
Chance of precipitation28%
Record high67° (1964)
Record low13° (2019)
Thu, 1243° / 30°0.06Climate normal
43 °Climate normal

Grellton, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high43°
Average low30°
Average precipitation0.06 in
Chance of precipitation28%
Record high63° (1964)
Record low4° (2019)
Fri, 1344° / 30°0.04Climate normal
44 °Climate normal

Grellton, Friday, 13 November

Climate normal for this date — 60-year average.

Average high44°
Average low30°
Average precipitation0.04 in
Chance of precipitation23%
Record high66° (1999)
Record low6° (1986)
Sat, 1444° / 31°0.04Climate normal
44 °Climate normal

Grellton, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high44°
Average low31°
Average precipitation0.04 in
Chance of precipitation22%
Record high65° (1971)
Record low11° (1995)
Sun, 1544° / 32°0.05Climate normal
44 °Climate normal

Grellton, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high44°
Average low32°
Average precipitation0.05 in
Chance of precipitation25%
Record high67° (2025)
Record low11° (1995)

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 Grellton, 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 Grellton, 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.