10-day forecast for St. Peter, IL: 46° to 77°, with precipitation expected on 2 days. The table below breaks each day into morning, afternoon, evening and overnight.
77°
Best day: Thursday, October 29
61° · 0.22 in
Worst day: Sunday, November 1
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 2675° / 51°0
Morning55°feels 55°
Afternoon74°feels 73°
Evening58°feels 57°
Overnight53°feels 52°
75 °
St. Peter, Monday, 26 October
Overcast. High 75°, low 51°.
Pressure30.33 inHg
Wind4.8 mph SW
Humidity52%
Visibility6.2 mi
Dew point52°
Tue, 2771° / 49°0
Morning52°feels 51°
Afternoon71°feels 70°
Evening59°feels 58°
Overnight51°feels 50°
71 °
St. Peter, Tuesday, 27 October
Overcast. High 71°, low 49°.
Pressure30.27 inHg
Wind5.3 mph S
Humidity55%
Visibility6.2 mi
Dew point52°
Wed, 2872° / 51°0
Morning52°feels 52°
Afternoon72°feels 71°
Evening60°feels 59°
Overnight54°feels 53°
72 °
St. Peter, Wednesday, 28 October
Partly cloudy. High 72°, low 51°.
Pressure30.21 inHg
Wind5.1 mph S
Humidity59%
Visibility6.2 mi
Dew point53°
Thu, 2977° / 56°0
Morning59°feels 58°
Afternoon76°feels 75°
Evening68°feels 68°
Overnight57°feels 56°
77 °
St. Peter, Thursday, 29 October
Clear. High 77°, low 56°.
Pressure30.15 inHg
Wind9.1 mph SW
Humidity51%
Visibility6.2 mi
Dew point53°
Fri, 3075° / 57°0
Morning62°feels 62°
Afternoon73°feels 73°
Evening66°feels 66°
Overnight62°feels 62°
75 °
St. Peter, Friday, 30 October
Overcast. High 75°, low 57°.
Pressure30.15 inHg
Wind7.2 mph SW
Humidity67%
Visibility—
Dew point60°
Sat, 3166° / 59°0.04
Morning61°feels 61°
Afternoon65°feels 65°
Evening62°feels 61°
Overnight62°feels 60°
66 °
St. Peter, Saturday, 31 October
Light rain. High 66°, low 59°.
Pressure30.18 inHg
Wind11.4 mph SE
Humidity66%
Visibility—
Dew point53°
Sun, 0161° / 58°0.22
Morning58°feels 58°
Afternoon60°feels 60°
Evening60°feels 60°
Overnight59°feels 59°
61 °
St. Peter, Sunday, 1 November
Rain. High 61°, low 58°.
Pressure30.15 inHg
Wind8.3 mph S
Humidity91%
Visibility—
Dew point57°
Mon, 0264° / 56°0.01
Morning60°feels 60°
Afternoon63°feels 63°
Evening58°feels 58°
Overnight57°feels 56°
64 °
St. Peter, Monday, 2 November
Light rain. High 64°, low 56°.
Pressure30.06 inHg
Wind8.7 mph E
Humidity73%
Visibility—
Dew point54°
Tue, 0369° / 52°0
Morning56°feels 55°
Afternoon65°feels 64°
Evening59°feels 58°
Overnight56°feels 55°
69 °
St. Peter, Tuesday, 3 November
Overcast. High 69°, low 52°.
Pressure30.03 inHg
Wind12.9 mph E
Humidity56%
Visibility—
Dew point48°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in St. Peter, IL around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.