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St. Peter, IL Weather Forecast
St. Peter, IL Weather Forecast Dated: 732 PM Sat Nov 14 2026
Expect a cool pattern with a mix of sun and clouds and mostly dry weather over the coming period. moderate humidity and a stable pattern will dominate.
Saturday, November 14, 2026
Mid-Morning
38°F 3°C
Sunny
Mid-Afternoon
48°F 9°C
Sunny
Early-Evening
38°F 3°C
Clear
Brisk around 48°F 9°C, sunny throughout the day, with steady humidity and steady pressure.
Sunday, November 15, 2026
Mid-Morning
42°F 5°C
Sunny
Mid-Afternoon
51°F 10°C
Sunny
Early-Evening
41°F 5°C
Clear
Cool and brisk at 51°F 10°C, sunny throughout the day, with steady humidity and steady pressure.
Monday, November 16, 2026
Mid-Morning
44°F 6°C
Sunny
Mid-Afternoon
53°F 12°C
Sunny
Early-Evening
42°F 6°C
Partly Cloudy
Chilly near 53°F 12°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure.
Tuesday, November 17, 2026
Mid-Morning
45°F 7°C
Sunny
Mid-Afternoon
56°F 13°C
Sunny
Early-Evening
45°F 7°C
Clear
Crisp with a high near 56°F 13°C, sunny throughout the day, with steady humidity and steady pressure.
Wednesday, November 18, 2026
Mid-Morning
48°F 9°C
Sunny
Mid-Afternoon
60°F 15°C
Overcast
Early-Evening
49°F 9°C
Overcast
Refreshing around 60°F 15°C, sunny in the morning, becoming overcast through the afternoon and evening, with steady humidity and barometric pressure falling. Winds out of the S at 11 mph 18 km/h. Gusts up to 27 mph 43 km/h.
Thursday, November 19, 2026
Mid-Morning
54°F 12°C
Partly Cloudy
Mid-Afternoon
63°F 17°C
Partly Cloudy
Early-Evening
56°F 13°C
Partly Cloudy
Mildly cool near 63°F 17°C, partly cloudy through the afternoon, turning cloudy this evening, with increasing humidity and steady pressure. Winds switching from the SSW to the SW at 5 mph 8 km/h.
Friday, November 20, 2026
Mid-Morning
57°F 14°C
Overcast
Mid-Afternoon
63°F 17°C
Partly Cloudy
Early-Evening
57°F 14°C
Clear
Comfortable at 63°F 17°C, overcast in the morning, becoming partly cloudy through the afternoon and evening, with increasing humidity and steady pressure.
Saturday, November 21, 2026
Mid-Morning
58°F 14°C
Partly Cloudy
Mid-Afternoon
61°F 16°C
Partly Cloudy
Early-Evening
56°F 14°C
Scattered Showers
Cool with a high near 61°F 16°C, scattered downpours possible, with increasing humidity and steady pressure. Winds moving from the S to the SSW at 10 mph 15 km/h. Gusts up to 23 mph 36 km/h.
Sunday, November 22, 2026
Mid-Morning
54°F 12°C
Scattered Showers
Mid-Afternoon
57°F 14°C
Scattered Showers
Early-Evening
49°F 10°C
Overcast
Brisk around 57°F 14°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds swinging from the WSW to the NW at 7 mph 12 km/h. Gusts up to 20 mph 32 km/h.
Monday, November 23, 2026
Mid-Morning
45°F 7°C
Scattered Showers
Mid-Afternoon
48°F 9°C
Scattered Showers
Early-Evening
43°F 6°C
Scattered Showers
Cool and brisk at 48°F 9°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds blowing from the N at 11 mph 18 km/h. Gusts up to 23 mph 36 km/h.
Tuesday, November 24, 2026
Mid-Morning
42°F 6°C
Scattered Showers
Mid-Afternoon
46°F 8°C
Scattered Showers
Early-Evening
42°F 6°C
Scattered Showers
Chilly near 46°F 8°C, scattered downpours possible, with steady humidity and steady pressure.
Wednesday, November 25, 2026
Mid-Morning
44°F 7°C
Scattered Showers
Mid-Afternoon
47°F 8°C
Scattered Showers
Early-Evening
44°F 7°C
Partly Cloudy
Crisp with a high near 47°F 8°C, locally heavy downpours at times, with steady humidity and steady pressure.
Thursday, November 26, 2026
Mid-Morning
44°F 7°C
Cloudy
Mid-Afternoon
49°F 9°C
Partly Cloudy
Early-Evening
44°F 7°C
Clear
Brisk around 49°F 9°C, cloudy through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure.
Friday, November 27, 2026
Mid-Morning
46°F 8°C
Overcast
Mid-Afternoon
53°F 12°C
Light Showers
Early-Evening
50°F 10°C
Light Showers
Cool and brisk at 53°F 12°C, clouds and showers taking over for the afternoon and evening, with increasing humidity and steady pressure. Winds turning from the SE to the ESE at 8 mph 12 km/h. Gusts up to 24 mph 39 km/h.
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