As of 04:41 CDT

Weather in Sylvan, WI

66°

Sylvan, Monday, 12 October, 04:41

Overcast. Feels like 65°. High 84°, low 65°.

Pressure29.77 inHg

Wind9 mph S

Humidity75%

Visibility6.2 mi

Dew point57°

See detailed hourly forecast

Tue, 1374° / 57°

74 °

Sylvan, Tuesday, 13 October

Overcast. High 74°, low 57°.

Pressure29.85 inHg

Wind9.7 mph NW

Humidity65%

Visibility6.2 mi

Dew point55°

Wed, 1465° / 50°

65 °

Sylvan, Wednesday, 14 October

Overcast. High 65°, low 50°.

Pressure30.15 inHg

Wind6.6 mph N

Humidity58%

Visibility6.2 mi

Dew point47°

Thu, 1560° / 51°

0.02

60 °

Sylvan, Thursday, 15 October

Light rain. High 60°, low 51°.

Pressure30.15 inHg

Wind6.3 mph SE

Humidity69%

Visibility6.2 mi

Dew point49°

Fri, 1655° / 44°

55 °

Sylvan, Friday, 16 October

Mostly clear. High 55°, low 44°.

Pressure30.50 inHg

Wind18.4 mph NW

Humidity43%

Visibility—

Dew point31°

Sat, 1758° / 37°

58 °

Sylvan, Saturday, 17 October

Clear. High 58°, low 37°.

Pressure30.36 inHg

Wind11.5 mph SW

Humidity36%

Visibility—

Dew point28°

Sun, 1858° / 38°

58 °

Sylvan, Sunday, 18 October

Clear. High 58°, low 38°.

Pressure30.12 inHg

Wind18.4 mph SW

Humidity45%

Visibility—

Dew point33°

Mon, 1961° / 40°

61 °

Sylvan, Monday, 19 October

Overcast. High 61°, low 40°.

Pressure30.15 inHg

Wind11.5 mph SW

Humidity50%

Visibility—

Dew point38°

Tue, 2068° / 51°

68 °

Sylvan, Tuesday, 20 October

Partly cloudy. High 68°, low 51°.

Pressure30.24 inHg

Wind8 mph SE

Humidity54%

Visibility—

Dew point47°

Wed, 2167° / 52°

67 °

Sylvan, Wednesday, 21 October

Overcast. High 67°, low 52°.

Pressure30.27 inHg

Wind11.7 mph S

Humidity75%

Visibility—

Dew point54°

Thu, 2272° / 55°

0.07

72 °

Sylvan, Thursday, 22 October

Light rain. High 72°, low 55°.

Pressure30.12 inHg

Wind17.7 mph S

Humidity60%

Visibility—

Dew point55°

Fri, 2364° / 44°

0.51

64 °

Sylvan, Friday, 23 October

Rain. High 64°, low 44°.

Pressure30.30 inHg

Wind13.9 mph NW

Humidity46%

Visibility—

Dew point37°

Sat, 2457° / 37°

57 °

Sylvan, Saturday, 24 October

Clear. High 57°, low 37°.

Pressure30.33 inHg

Wind12.9 mph S

Humidity48%

Visibility—

Dew point34°

Sun, 2555° / 48°

0.65

55 °

Sylvan, Sunday, 25 October

Rain. High 55°, low 48°.

Pressure29.71 inHg

Wind14.6 mph S

Humidity94%

Visibility—

Dew point53°

Mon, 2657° / 40°

57 °

Sylvan, Monday, 26 October

Clear. High 57°, low 40°.

Pressure30.15 inHg

Wind11.6 mph N

Humidity50%

Visibility—

Dew point35°

Tue, 2760° / 40°

60 °

Sylvan, Tuesday, 27 October

Clear. High 60°, low 40°.

Pressure30.09 inHg

Wind6.2 mph SW

Humidity47%

Visibility—

Dew point36°

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.