As of 15:28 CDT

Weather in Byron, WI

55°Current weather

Byron, Thursday, 15 October, 15:28

Light rain. Feels like 54°. High 58°, low 54°.

Pressure29.88 inHg
Wind9.2 mph NE
Humidity95%
Visibility0.9 mi
Dew point54°

Monthly outlook for Byron, WI: average high 61.5°, average low 46.4°. That is 3.7° above the climate normal for October. Precipitation is expected on 3 days (about 2.5 inches), against a normal of 5 days and 1.3 inches. The warmest day looks like 24 October (69.8°), the coolest 17 October (36°).

61.5°/46.4°
Average high / low
+3.7°
Above normal
3 / 5
Wet days / normal
2.5 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
15 October – 24 October62.1°55.9°+3.5°
25 October – 3 November60.5°52.1°+4.7°
4 November – 13 Novemberat normal46.3°—

October records over 66 years

83.5°1 October 2023All-time high
21°30 October 1988All-time low

Climate normals and records are computed from the nearest reference point — Theresa (9 mi).

Fri, 1657° / 45°0.11Light rain
57 °Light rain

Byron, Friday, 16 October

Light rain. High 57°, low 45°.

Pressure30.12 inHg
Wind16.8 mph N
Humidity87%
Visibility6.2 mi
Dew point44°
Sat, 1756° / 36°0Clear
56 °Clear

Byron, Saturday, 17 October

Clear. High 56°, low 36°.

Pressure30.47 inHg
Wind12.3 mph SW
Humidity46%
Visibility6.2 mi
Dew point32°
Sun, 1860° / 43°0Clear
60 °Clear

Byron, Sunday, 18 October

Clear. High 60°, low 43°.

Pressure30.36 inHg
Wind16.8 mph SW
Humidity53%
Visibility6.2 mi
Dew point39°
Mon, 1961° / 42°0Overcast
61 °Overcast

Byron, Monday, 19 October

Overcast. High 61°, low 42°.

Pressure30.36 inHg
Wind7.7 mph S
Humidity60%
Visibility6.2 mi
Dew point43°
Tue, 2064° / 41°0Clear
64 °Clear

Byron, Tuesday, 20 October

Clear. High 64°, low 41°.

Pressure30.36 inHg
Wind6.2 mph SE
Humidity49%
Visibility—
Dew point41°
Wed, 2163° / 43°0Clear
63 °Clear

Byron, Wednesday, 21 October

Clear. High 63°, low 43°.

Pressure30.33 inHg
Wind8.8 mph SE
Humidity58%
Visibility—
Dew point46°
Thu, 2262° / 47°0Overcast
62 °Overcast

Byron, Thursday, 22 October

Overcast. High 62°, low 47°.

Pressure30.24 inHg
Wind9.8 mph SW
Humidity53%
Visibility—
Dew point43°
Fri, 2369° / 52°0Overcast
69 °Overcast

Byron, Friday, 23 October

Overcast. High 69°, low 52°.

Pressure30.21 inHg
Wind11.9 mph S
Humidity43%
Visibility—
Dew point43°
Sat, 2470° / 54°0Overcast
70 °Overcast

Byron, Saturday, 24 October

Overcast. High 70°, low 54°.

Pressure30.09 inHg
Wind19.1 mph S
Humidity48%
Visibility—
Dew point48°
Sun, 2561° / 46°0Clear
61 °Clear

Byron, Sunday, 25 October

Clear. High 61°, low 46°.

Pressure30.42 inHg
Wind12.3 mph W
Humidity39%
Visibility—
Dew point34°
Mon, 2663° / 42°0Overcast
63 °Overcast

Byron, Monday, 26 October

Overcast. High 63°, low 42°.

Pressure30.50 inHg
Wind7.8 mph SE
Humidity41%
Visibility—
Dew point36°
Tue, 2766° / 50°0Overcast
66 °Overcast

Byron, Tuesday, 27 October

Overcast. High 66°, low 50°.

Pressure30.18 inHg
Wind16.3 mph SW
Humidity57%
Visibility—
Dew point49°
Wed, 2861° / 53°0.02Light rain
61 °Light rain

Byron, Wednesday, 28 October

Light rain. High 61°, low 53°.

Pressure30.18 inHg
Wind15.8 mph S
Humidity57%
Visibility—
Dew point45°
Thu, 2958° / 53°1.5Heavy rain
58 °Heavy rain

Byron, Thursday, 29 October

Heavy rain. High 58°, low 53°.

Pressure29.88 inHg
Wind16.2 mph SW
Humidity97%
Visibility—
Dew point56°
Fri, 3053° / 39°0Overcast
53 °Overcast

Byron, Friday, 30 October

Overcast. High 53°, low 39°.

Pressure30.27 inHg
Wind13.8 mph W
Humidity44%
Visibility—
Dew point30°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3152° / 40°0.09Climate normal
52 °Climate normal

Byron, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high52°
Average low40°
Average precipitation0.09 in
Chance of precipitation32%
Record high68° (1971)
Record low24° (2019)
Sun, 0151° / 38°0.19Climate normal
51 °Climate normal

Byron, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high51°
Average low38°
Average precipitation0.19 in
Chance of precipitation35%
Record high69° (1990)
Record low18° (2019)
Mon, 0250° / 38°0.11Climate normal
50 °Climate normal

Byron, Monday, 2 November

Climate normal for this date — 60-year average.

Average high50°
Average low38°
Average precipitation0.11 in
Chance of precipitation38%
Record high71° (1961)
Record low19° (1991)
Tue, 0349° / 37°0.05Climate normal
49 °Climate normal

Byron, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high49°
Average low37°
Average precipitation0.05 in
Chance of precipitation27%
Record high70° (2008)
Record low16° (1991)
Wed, 0449° / 37°0.07Climate normal
49 °Climate normal

Byron, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high49°
Average low37°
Average precipitation0.07 in
Chance of precipitation27%
Record high71° (2008)
Record low13° (1991)
Thu, 0549° / 37°0.09Climate normal
49 °Climate normal

Byron, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high49°
Average low37°
Average precipitation0.09 in
Chance of precipitation27%
Record high69° (2015)
Record low18° (1991)
Fri, 0648° / 35°0.09Climate normal
48 °Climate normal

Byron, Friday, 6 November

Climate normal for this date — 60-year average.

Average high48°
Average low35°
Average precipitation0.09 in
Chance of precipitation30%
Record high68° (1975)
Record low15° (1991)
Sat, 0748° / 35°0.03Climate normal
48 °Climate normal

Byron, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high48°
Average low35°
Average precipitation0.03 in
Chance of precipitation17%
Record high67° (2020)
Record low8° (1991)
Sun, 0847° / 35°0.05Climate normal
47 °Climate normal

Byron, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high47°
Average low35°
Average precipitation0.05 in
Chance of precipitation20%
Record high69° (2020)
Record low6° (2019)
Mon, 0947° / 35°0.11Climate normal
47 °Climate normal

Byron, Monday, 9 November

Climate normal for this date — 60-year average.

Average high47°
Average low35°
Average precipitation0.11 in
Chance of precipitation37%
Record high72° (2020)
Record low17° (2017)
Tue, 1046° / 34°0.1Climate normal
46 °Climate normal

Byron, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high46°
Average low34°
Average precipitation0.1 in
Chance of precipitation42%
Record high71° (2022)
Record low13° (2017)
Wed, 1144° / 31°0.06Climate normal
44 °Climate normal

Byron, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high44°
Average low31°
Average precipitation0.06 in
Chance of precipitation30%
Record high67° (1964)
Record low13° (2019)
Thu, 1242° / 30°0.06Climate normal
42 °Climate normal

Byron, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high42°
Average low30°
Average precipitation0.06 in
Chance of precipitation30%
Record high61° (1964)
Record low5° (2019)
Fri, 1343° / 30°0.04Climate normal
43 °Climate normal

Byron, Friday, 13 November

Climate normal for this date — 60-year average.

Average high43°
Average low30°
Average precipitation0.04 in
Chance of precipitation23%
Record high65° (1999)
Record low6° (1986)

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 Byron, 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 Byron, 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.