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As of 17:39 CDT

Weather in St. Peter, IL

71°Current weather

St. Peter, Monday, 19 October, 17:39

Clear. Feels like 71°. High 71°, low 39°.

Pressure30.33 inHg
Wind1.2 mph SE
Humidity47%
Visibility6.2 mi
Dew point50°
Tue, 2072° / 43°0Clear
72 °Clear

St. Peter, Tuesday, 20 October

Clear. High 72°, low 43°.

Pressure30.36 inHg
Wind2.1 mph E
Humidity46%
Visibility6.2 mi
Dew point46°
Wed, 2170° / 43°0Clear
70 °Clear

St. Peter, Wednesday, 21 October

Clear. High 70°, low 43°.

Pressure30.27 inHg
Wind0.8 mph N
Humidity47%
Visibility6.2 mi
Dew point47°
Thu, 2271° / 48°0Clear
71 °Clear

St. Peter, Thursday, 22 October

Clear. High 71°, low 48°.

Pressure30.30 inHg
Wind5.3 mph NE
Humidity46%
Visibility6.2 mi
Dew point47°
Fri, 2366° / 49°0Clear
66 °Clear

St. Peter, Friday, 23 October

Clear. High 66°, low 49°.

Pressure30.33 inHg
Wind6.4 mph E
Humidity54%
Visibility6.2 mi
Dew point46°
Sat, 2467° / 46°0Partly cloudy
67 °Partly cloudy

St. Peter, Saturday, 24 October

Partly cloudy. High 67°, low 46°.

Pressure30.42 inHg
Wind8.5 mph E
Humidity41%
Visibility—
Dew point38°
Sun, 2576° / 50°0Overcast
76 °Overcast

St. Peter, Sunday, 25 October

Overcast. High 76°, low 50°.

Pressure30.33 inHg
Wind10 mph SW
Humidity36%
Visibility—
Dew point42°
Mon, 2673° / 58°0Overcast
73 °Overcast

St. Peter, Monday, 26 October

Overcast. High 73°, low 58°.

Pressure30.27 inHg
Wind8.4 mph N
Humidity48%
Visibility—
Dew point50°
Tue, 2761° / 47°0.06Light rain
61 °Light rain

St. Peter, Tuesday, 27 October

Light rain. High 61°, low 47°.

Pressure30.24 inHg
Wind13.1 mph N
Humidity69%
Visibility—
Dew point50°
Wed, 2848° / 35°0Clear
48 °Clear

St. Peter, Wednesday, 28 October

Clear. High 48°, low 35°.

Pressure30.45 inHg
Wind14.9 mph N
Humidity34%
Visibility—
Dew point19°
Thu, 2952° / 29°0Clear
52 °Clear

St. Peter, Thursday, 29 October

Clear. High 52°, low 29°.

Pressure30.45 inHg
Wind7 mph N
Humidity23%
Visibility—
Dew point11°
Fri, 3060° / 33°0Partly cloudy
60 °Partly cloudy

St. Peter, Friday, 30 October

Partly cloudy. High 60°, low 33°.

Pressure30.33 inHg
Wind11.3 mph SW
Humidity17%
Visibility—
Dew point10°
Sat, 3167° / 42°0Overcast
67 °Overcast

St. Peter, Saturday, 31 October

Overcast. High 67°, low 42°.

Pressure30.18 inHg
Wind15.1 mph SW
Humidity15%
Visibility—
Dew point13°
Sun, 0165° / 46°0Overcast
65 °Overcast

St. Peter, Sunday, 1 November

Overcast. High 65°, low 46°.

Pressure30.15 inHg
Wind9.6 mph SW
Humidity19%
Visibility—
Dew point20°
Mon, 0265° / 50°0.03Light rain
65 °Light rain

St. Peter, Monday, 2 November

Light rain. High 65°, low 50°.

Pressure30.09 inHg
Wind11.2 mph N
Humidity41%
Visibility—
Dew point39°
Tue, 0360° / 41°0Overcast
60 °Overcast

St. Peter, Tuesday, 3 November

Overcast. High 60°, low 41°.

Pressure30.06 inHg
Wind7.9 mph N
Humidity51%
Visibility—
Dew point38°

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 St. Peter, IL 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 St. Peter, IL 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.