As of 12:53 CDT

Weather in Grellton, WI

83°Current weather

Grellton, Monday, 12 October, 12:53

Clear. Feels like 86°. High 83°, low 62°.

Pressure29.77 inHg
Wind9.2 mph S
Humidity57%
Visibility6.2 mi
Dew point67°

Monthly outlook for Grellton, WI: average high 63.8°, average low 50.4°. That is 3.9° above the climate normal for October. Precipitation is expected on 4 days (about 0.8 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 12 October (83.3°), the coolest 26 October (36.1°).

63.8°/50.4°
Average high / low
+3.9°
Above normal
4 / 5
Wet days / normal
0.8 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
12 October – 21 October64°57.9°+3.4°
22 October – 31 October63.5°54.2°+5.1°
1 November – 10 Novemberat normal49.1°—

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, 1376° / 59°0.03Light rain
76 °Light rain

Grellton, Tuesday, 13 October

Light rain. High 76°, low 59°.

Pressure29.83 inHg
Wind12.9 mph NW
Humidity59%
Visibility6.2 mi
Dew point57°
Wed, 1467° / 54°0Overcast
67 °Overcast

Grellton, Wednesday, 14 October

Overcast. High 67°, low 54°.

Pressure30.12 inHg
Wind5.4 mph NE
Humidity62%
Visibility6.2 mi
Dew point52°
Thu, 1562° / 53°0.1Light rain
62 °Light rain

Grellton, Thursday, 15 October

Light rain. High 62°, low 53°.

Pressure30.12 inHg
Wind6.7 mph E
Humidity71%
Visibility6.2 mi
Dew point52°
Fri, 1656° / 46°0Partly cloudy
56 °Partly cloudy

Grellton, Friday, 16 October

Partly cloudy. High 56°, low 46°.

Pressure30.36 inHg
Wind20.5 mph N
Humidity51%
Visibility6.2 mi
Dew point36°
Sat, 1759° / 38°0Clear
59 °Clear

Grellton, Saturday, 17 October

Clear. High 59°, low 38°.

Pressure30.42 inHg
Wind13.6 mph SW
Humidity37%
Visibility—
Dew point29°
Sun, 1859° / 42°0Clear
59 °Clear

Grellton, Sunday, 18 October

Clear. High 59°, low 42°.

Pressure30.18 inHg
Wind21.2 mph SW
Humidity40%
Visibility—
Dew point32°
Mon, 1956° / 46°0.17Light rain
56 °Light rain

Grellton, Monday, 19 October

Light rain. High 56°, low 46°.

Pressure30.15 inHg
Wind13.3 mph SW
Humidity61%
Visibility—
Dew point42°
Tue, 2056° / 51°0Overcast
56 °Overcast

Grellton, Tuesday, 20 October

Overcast. High 56°, low 51°.

Pressure30.24 inHg
Wind6.5 mph S
Humidity87%
Visibility—
Dew point51°
Wed, 2166° / 53°0Overcast
66 °Overcast

Grellton, Wednesday, 21 October

Overcast. High 66°, low 53°.

Pressure30.33 inHg
Wind12.2 mph SE
Humidity85%
Visibility—
Dew point56°
Thu, 2267° / 55°0Overcast
67 °Overcast

Grellton, Thursday, 22 October

Overcast. High 67°, low 55°.

Pressure30.30 inHg
Wind13.3 mph S
Humidity75%
Visibility—
Dew point56°
Fri, 2370° / 62°0.3Rain
70 °Rain

Grellton, Friday, 23 October

Rain. High 70°, low 62°.

Pressure30.18 inHg
Wind10.9 mph SW
Humidity82%
Visibility—
Dew point63°
Sat, 2470° / 62°0.19Rain
70 °Rain

Grellton, Saturday, 24 October

Rain. High 70°, low 62°.

Pressure29.88 inHg
Wind20.1 mph S
Humidity64%
Visibility—
Dew point56°
Sun, 2562° / 47°0.01Light rain
62 °Light rain

Grellton, Sunday, 25 October

Light rain. High 62°, low 47°.

Pressure29.85 inHg
Wind21.6 mph W
Humidity72%
Visibility—
Dew point44°
Mon, 2656° / 36°0Clear
56 °Clear

Grellton, Monday, 26 October

Clear. High 56°, low 36°.

Pressure30.12 inHg
Wind14.5 mph NW
Humidity42%
Visibility—
Dew point29°
Tue, 2757° / 40°0Overcast
57 °Overcast

Grellton, Tuesday, 27 October

Overcast. High 57°, low 40°.

Pressure29.80 inHg
Wind21.4 mph N
Humidity55%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2853° / 40°0.05Climate normal
53 °Climate normal

Grellton, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high53°
Average low40°
Average precipitation0.05 in
Chance of precipitation27%
Record high68° (1974)
Record low25° (1969)
Thu, 2953° / 39°0.05Climate normal
53 °Climate normal

Grellton, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high53°
Average low39°
Average precipitation0.05 in
Chance of precipitation15%
Record high78° (2024)
Record low24° (1980)
Fri, 3055° / 40°0.09Climate normal
55 °Climate normal

Grellton, Friday, 30 October

Climate normal for this date — 60-year average.

Average high55°
Average low40°
Average precipitation0.09 in
Chance of precipitation30%
Record high76° (2024)
Record low21° (1988)
Sat, 3153° / 40°0.09Climate normal
53 °Climate normal

Grellton, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high53°
Average low40°
Average precipitation0.09 in
Chance of precipitation33%
Record high69° (1971)
Record low23° (2019)
Sun, 0152° / 39°0.2Climate normal
52 °Climate normal

Grellton, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high52°
Average low39°
Average precipitation0.2 in
Chance of precipitation38%
Record high70° (2000)
Record low15° (2019)
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)

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.