As of 04:05 CDT

Weather in Grellton, WI

46°Current weather

Grellton, Monday, 19 October, 04:05

Clear. Feels like 45°. High 66°, low 45°.

Pressure30.36 inHg
Wind3 mph SW
Humidity79%
Visibility6.2 mi
Dew point40°

Monthly outlook for Grellton, WI: average high 59.5°, average low 42°. That is 3° above the climate normal for October. Precipitation is expected on 1 day (about 0.2 inches), against a normal of 5 days and 1.4 inches. The warmest day looks like 21 October (67.7°), the coolest 29 October (25.9°).

59.5°/42°
Average high / low
+3°
Above normal
1 / 5
Wet days / normal
0.2 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
19 October – 28 October62.6°55.2°+4.1°
29 October – 7 November54.4°50.9°+1.9°
8 November – 17 Novemberat normal45°—

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).

Tue, 2067° / 44°0Clear
67 °Clear

Grellton, Tuesday, 20 October

Clear. High 67°, low 44°.

Pressure30.39 inHg
Wind4.6 mph SE
Humidity58%
Visibility6.2 mi
Dew point47°
Wed, 2168° / 43°0Clear
68 °Clear

Grellton, Wednesday, 21 October

Clear. High 68°, low 43°.

Pressure30.27 inHg
Wind5 mph SW
Humidity57%
Visibility6.2 mi
Dew point48°
Thu, 2267° / 46°0Partly cloudy
67 °Partly cloudy

Grellton, Thursday, 22 October

Partly cloudy. High 67°, low 46°.

Pressure30.33 inHg
Wind3.8 mph E
Humidity73%
Visibility6.2 mi
Dew point55°
Fri, 2365° / 48°0Overcast
65 °Overcast

Grellton, Friday, 23 October

Overcast. High 65°, low 48°.

Pressure30.33 inHg
Wind9.2 mph SE
Humidity56%
Visibility—
Dew point46°
Sat, 2465° / 48°0Overcast
65 °Overcast

Grellton, Saturday, 24 October

Overcast. High 65°, low 48°.

Pressure30.39 inHg
Wind11.2 mph S
Humidity54%
Visibility—
Dew point44°
Sun, 2564° / 53°0.02Light rain
64 °Light rain

Grellton, Sunday, 25 October

Light rain. High 64°, low 53°.

Pressure30.15 inHg
Wind15.8 mph W
Humidity42%
Visibility—
Dew point40°
Mon, 2665° / 44°0.02Light rain
65 °Light rain

Grellton, Monday, 26 October

Light rain. High 65°, low 44°.

Pressure30.15 inHg
Wind13.5 mph SW
Humidity35%
Visibility—
Dew point34°
Tue, 2758° / 38°0.11Light rain
58 °Light rain

Grellton, Tuesday, 27 October

Light rain. High 58°, low 38°.

Pressure30.18 inHg
Wind15 mph NW
Humidity57%
Visibility—
Dew point33°
Wed, 2841° / 30°0Clear
41 °Clear

Grellton, Wednesday, 28 October

Clear. High 41°, low 30°.

Pressure30.45 inHg
Wind13.5 mph N
Humidity37%
Visibility—
Dew point15°
Thu, 2944° / 26°0Overcast
44 °Overcast

Grellton, Thursday, 29 October

Overcast. High 44°, low 26°.

Pressure30.39 inHg
Wind6 mph NW
Humidity31%
Visibility—
Dew point12°
Fri, 3048° / 26°0Clear
48 °Clear

Grellton, Friday, 30 October

Clear. High 48°, low 26°.

Pressure30.47 inHg
Wind7.9 mph S
Humidity28%
Visibility—
Dew point12°
Sat, 3149° / 33°0Overcast
49 °Overcast

Grellton, Saturday, 31 October

Overcast. High 49°, low 33°.

Pressure30.42 inHg
Wind16.6 mph S
Humidity36%
Visibility—
Dew point21°
Sun, 0160° / 44°0Overcast
60 °Overcast

Grellton, Sunday, 1 November

Overcast. High 60°, low 44°.

Pressure30.24 inHg
Wind14.3 mph SW
Humidity36%
Visibility—
Dew point31°
Mon, 0263° / 50°0.01Light rain
63 °Light rain

Grellton, Monday, 2 November

Light rain. High 63°, low 50°.

Pressure30.03 inHg
Wind20.4 mph S
Humidity44%
Visibility—
Dew point39°
Tue, 0362° / 52°0Overcast
62 °Overcast

Grellton, Tuesday, 3 November

Overcast. High 62°, low 52°.

Pressure30.21 inHg
Wind18.7 mph SW
Humidity52%
Visibility—
Dew point43°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Mon, 1644° / 31°0.04Climate normal
44 °Climate normal

Grellton, Monday, 16 November

Climate normal for this date — 60-year average.

Average high44°
Average low31°
Average precipitation0.04 in
Chance of precipitation20%
Record high61° (1988)
Record low20° (1989)
Tue, 1745° / 32°0.08Climate normal
45 °Climate normal

Grellton, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high45°
Average low32°
Average precipitation0.08 in
Chance of precipitation25%
Record high68° (2016)
Record low13° (2005)

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.