EN
English Español

As of 13:24 CDT

Weather in St. Peter, IL

87°Current weather

St. Peter, Saturday, 8 August, 13:24

Clear. Feels like 96°. High 88°, low 71°.

Pressure30.06 inHg
Wind6.3 mph W
Humidity67%
Visibility6.2 mi
Dew point74°
Sun, 0992° / 73°0Partly cloudy
92 °Partly cloudy

St. Peter, Sunday, 9 August

Partly cloudy. High 92°, low 73°.

Pressure30.00 inHg
Wind12.5 mph S
Humidity63%
Visibility6.2 mi
Dew point71°
Mon, 1093° / 75°0Partly cloudy
93 °Partly cloudy

St. Peter, Monday, 10 August

Partly cloudy. High 93°, low 75°.

Pressure29.97 inHg
Wind13.5 mph SW
Humidity61%
Visibility6.2 mi
Dew point73°
Tue, 1195° / 76°0.02Light rain
95 °Light rain

St. Peter, Tuesday, 11 August

Light rain. High 95°, low 76°.

Pressure29.91 inHg
Wind14.5 mph SW
Humidity56%
Visibility6.2 mi
Dew point72°
Wed, 1285° / 71°0.42Rain
85 °Rain

St. Peter, Wednesday, 12 August

Rain. High 85°, low 71°.

Pressure29.85 inHg
Wind10.2 mph N
Humidity69%
Visibility6.2 mi
Dew point74°
Thu, 1373° / 67°0.2Light rain
73 °Light rain

St. Peter, Thursday, 13 August

Light rain. High 73°, low 67°.

Pressure29.85 inHg
Wind11 mph W
Humidity96%
Visibility—
Dew point71°
Fri, 1475° / 57°0Partly cloudy
75 °Partly cloudy

St. Peter, Friday, 14 August

Partly cloudy. High 75°, low 57°.

Pressure30.15 inHg
Wind6.8 mph NE
Humidity57%
Visibility—
Dew point55°
Sat, 1578° / 57°0Light rain
78 °Light rain

St. Peter, Saturday, 15 August

Light rain. High 78°, low 57°.

Pressure30.21 inHg
Wind7.9 mph SE
Humidity55%
Visibility—
Dew point56°
Sun, 1671° / 63°0.26Light rain
71 °Light rain

St. Peter, Sunday, 16 August

Light rain. High 71°, low 63°.

Pressure30.09 inHg
Wind15.4 mph SE
Humidity98%
Visibility—
Dew point66°
Mon, 1781° / 70°0.24Rain
81 °Rain

St. Peter, Monday, 17 August

Rain. High 81°, low 70°.

Pressure29.94 inHg
Wind11.4 mph SE
Humidity79%
Visibility—
Dew point72°
Tue, 1885° / 68°0.04Light rain
85 °Light rain

St. Peter, Tuesday, 18 August

Light rain. High 85°, low 68°.

Pressure29.94 inHg
Wind7 mph SW
Humidity61%
Visibility—
Dew point68°
Wed, 1988° / 68°0.19Light rain
88 °Light rain

St. Peter, Wednesday, 19 August

Light rain. High 88°, low 68°.

Pressure29.91 inHg
Wind17 mph N
Humidity62%
Visibility—
Dew point71°
Thu, 2071° / 56°0Mostly clear
71 °Mostly clear

St. Peter, Thursday, 20 August

Mostly clear. High 71°, low 56°.

Pressure30.18 inHg
Wind14.5 mph N
Humidity55%
Visibility—
Dew point51°
Fri, 2171° / 50°0Clear
71 °Clear

St. Peter, Friday, 21 August

Clear. High 71°, low 50°.

Pressure30.24 inHg
Wind8.2 mph NE
Humidity52%
Visibility—
Dew point49°
Sat, 2274° / 52°0Clear
74 °Clear

St. Peter, Saturday, 22 August

Clear. High 74°, low 52°.

Pressure30.15 inHg
Wind5 mph E
Humidity49%
Visibility—
Dew point49°
Sun, 2377° / 54°0Clear
77 °Clear

St. Peter, Sunday, 23 August

Clear. High 77°, low 54°.

Pressure30.12 inHg
Wind6.6 mph E
Humidity49%
Visibility—
Dew point52°

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.