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As of 21:11 CDT

Weather in St. Peter, IL

74°Current weather

St. Peter, Thursday, 15 October, 21:11

Mostly clear. Feels like 75°. High 77°, low 67°.

Pressure29.88 inHg
Wind9.9 mph W
Humidity87%
Visibility6.2 mi
Dew point69°
Fri, 1671° / 52°0.02Light rain
71 °Light rain

St. Peter, Friday, 16 October

Light rain. High 71°, low 52°.

Pressure30.18 inHg
Wind17.1 mph NW
Humidity47%
Visibility6.2 mi
Dew point37°
Sat, 1758° / 42°0Clear
58 °Clear

St. Peter, Saturday, 17 October

Clear. High 58°, low 42°.

Pressure30.56 inHg
Wind4.5 mph NE
Humidity51%
Visibility6.2 mi
Dew point37°
Sun, 1863° / 41°0Clear
63 °Clear

St. Peter, Sunday, 18 October

Clear. High 63°, low 41°.

Pressure30.53 inHg
Wind7.1 mph S
Humidity41%
Visibility6.2 mi
Dew point35°
Mon, 1968° / 42°0Clear
68 °Clear

St. Peter, Monday, 19 October

Clear. High 68°, low 42°.

Pressure30.39 inHg
Wind4 mph S
Humidity47%
Visibility6.2 mi
Dew point43°
Tue, 2070° / 44°0Clear
70 °Clear

St. Peter, Tuesday, 20 October

Clear. High 70°, low 44°.

Pressure30.33 inHg
Wind4.5 mph SE
Humidity36%
Visibility—
Dew point38°
Wed, 2173° / 51°0Mostly clear
73 °Mostly clear

St. Peter, Wednesday, 21 October

Mostly clear. High 73°, low 51°.

Pressure30.30 inHg
Wind5.4 mph SE
Humidity36%
Visibility—
Dew point40°
Thu, 2276° / 53°0Mostly clear
76 °Mostly clear

St. Peter, Thursday, 22 October

Mostly clear. High 76°, low 53°.

Pressure30.24 inHg
Wind6.3 mph SE
Humidity25%
Visibility—
Dew point34°
Fri, 2377° / 54°0Clear
77 °Clear

St. Peter, Friday, 23 October

Clear. High 77°, low 54°.

Pressure30.15 inHg
Wind9.1 mph SE
Humidity26%
Visibility—
Dew point35°
Sat, 2475° / 56°0Overcast
75 °Overcast

St. Peter, Saturday, 24 October

Overcast. High 75°, low 56°.

Pressure30.21 inHg
Wind7.9 mph SE
Humidity30%
Visibility—
Dew point38°
Sun, 2576° / 54°0Overcast
76 °Overcast

St. Peter, Sunday, 25 October

Overcast. High 76°, low 54°.

Pressure30.21 inHg
Wind7.2 mph E
Humidity30%
Visibility—
Dew point38°
Mon, 2677° / 56°0Overcast
77 °Overcast

St. Peter, Monday, 26 October

Overcast. High 77°, low 56°.

Pressure30.03 inHg
Wind12.8 mph S
Humidity33%
Visibility—
Dew point40°
Tue, 2769° / 49°0Clear
69 °Clear

St. Peter, Tuesday, 27 October

Clear. High 69°, low 49°.

Pressure30.06 inHg
Wind9.7 mph W
Humidity34%
Visibility—
Dew point35°
Wed, 2867° / 52°0.8Heavy rain
67 °Heavy rain

St. Peter, Wednesday, 28 October

Heavy rain. High 67°, low 52°.

Pressure29.71 inHg
Wind20.2 mph W
Humidity93%
Visibility—
Dew point58°
Thu, 2961° / 47°0Overcast
61 °Overcast

St. Peter, Thursday, 29 October

Overcast. High 61°, low 47°.

Pressure29.94 inHg
Wind18.9 mph W
Humidity53%
Visibility—
Dew point40°
Fri, 3068° / 46°0Partly cloudy
68 °Partly cloudy

St. Peter, Friday, 30 October

Partly cloudy. High 68°, low 46°.

Pressure30.06 inHg
Wind7.7 mph NW
Humidity43%
Visibility—
Dew point40°

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.