As of 09:26 CDT

Weather in Sylvan, WI

67°

Sylvan, Monday, 12 October, 09:26

Clear. Feels like 67°. High 84°, low 65°.

Pressure29.77 inHg

Wind7.9 mph S

Humidity79%

Visibility6.2 mi

Dew point61°

See detailed hourly forecast

Tue, 1373° / 56°

0.01

73 °

Sylvan, Tuesday, 13 October

Light rain. High 73°, low 56°.

Pressure29.85 inHg

Wind9.3 mph NW

Humidity65%

Visibility6.2 mi

Dew point55°

Wed, 1466° / 50°

66 °

Sylvan, Wednesday, 14 October

Overcast. High 66°, low 50°.

Pressure30.15 inHg

Wind6.9 mph NE

Humidity59%

Visibility6.2 mi

Dew point48°

Thu, 1560° / 52°

0.06

60 °

Sylvan, Thursday, 15 October

Light rain. High 60°, low 52°.

Pressure30.12 inHg

Wind4.8 mph E

Humidity74%

Visibility6.2 mi

Dew point50°

Fri, 1654° / 44°

54 °

Sylvan, Friday, 16 October

Clear. High 54°, low 44°.

Pressure30.47 inHg

Wind18.8 mph N

Humidity44%

Visibility—

Dew point31°

Sat, 1759° / 37°

59 °

Sylvan, Saturday, 17 October

Clear. High 59°, low 37°.

Pressure30.39 inHg

Wind12.3 mph SW

Humidity37%

Visibility—

Dew point29°

Sun, 1858° / 41°

58 °

Sylvan, Sunday, 18 October

Clear. High 58°, low 41°.

Pressure30.09 inHg

Wind18.7 mph SW

Humidity44%

Visibility—

Dew point33°

Mon, 1959° / 49°

0.01

59 °

Sylvan, Monday, 19 October

Light rain. High 59°, low 49°.

Pressure30.09 inHg

Wind10.9 mph SW

Humidity57%

Visibility—

Dew point43°

Tue, 2058° / 49°

58 °

Sylvan, Tuesday, 20 October

Overcast. High 58°, low 49°.

Pressure30.24 inHg

Wind7.2 mph E

Humidity77%

Visibility—

Dew point49°

Wed, 2168° / 52°

68 °

Sylvan, Wednesday, 21 October

Light rain. High 68°, low 52°.

Pressure30.27 inHg

Wind12.3 mph SE

Humidity71%

Visibility—

Dew point54°

Thu, 2265° / 57°

0.24

65 °

Sylvan, Thursday, 22 October

Rain. High 65°, low 57°.

Pressure30.21 inHg

Wind12.3 mph S

Humidity80%

Visibility—

Dew point58°

Fri, 2373° / 62°

0.98

73 °

Sylvan, Friday, 23 October

Heavy rain. High 73°, low 62°.

Pressure30.18 inHg

Wind7.3 mph S

Humidity74%

Visibility—

Dew point63°

Sat, 2464° / 58°

0.35

64 °

Sylvan, Saturday, 24 October

Rain. High 64°, low 58°.

Pressure29.80 inHg

Wind18.1 mph S

Humidity93%

Visibility—

Dew point60°

Sun, 2557° / 43°

57 °

Sylvan, Sunday, 25 October

Overcast. High 57°, low 43°.

Pressure29.94 inHg

Wind18 mph SW

Humidity79%

Visibility—

Dew point42°

Mon, 2657° / 34°

57 °

Sylvan, Monday, 26 October

Partly cloudy. High 57°, low 34°.

Pressure30.12 inHg

Wind11.8 mph W

Humidity47%

Visibility—

Dew point32°

Tue, 2758° / 41°

58 °

Sylvan, Tuesday, 27 October

Overcast. High 58°, low 41°.

Pressure29.88 inHg

Wind18.3 mph NW

Humidity52%

Visibility—

Dew point39°

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 Sylvan, 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 Sylvan, 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.