Janssen, IL 14 Day Weather
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Janssen, IL Weather Forecast


Janssen, IL Weather Forecast Dated: 803 AM Sat Oct 31 2026
Expect a cool pattern with a mix of sun and clouds and occasional showers over the coming period. generally humid conditions and no major pressure swings will dominate.
Saturday, October 31, 2026
Mid-Morning
52°F 11°C
Overcast
Mid-Afternoon
55°F 13°C
Overcast
Early-Evening
53°F 12°C
Overcast
Brisk around 55°F 13°C, overcast throughout the day, with steady humidity and steady pressure.
Sunday, November 1, 2026
Mid-Morning
55°F 13°C
Scattered Showers
Mid-Afternoon
60°F 16°C
Scattered Showers
Early-Evening
56°F 13°C
Scattered Showers
Mildly cool near 60°F 16°C, scattered downpours possible, with steady humidity and barometric pressure falling. Winds turning from the SE to the SSE at 10 mph 16 km/h.
Monday, November 2, 2026
Mid-Morning
55°F 13°C
Drizzle
Mid-Afternoon
60°F 15°C
Overcast
Early-Evening
60°F 16°C
Scattered Showers
Comfortable at 60°F 15°C, locally heavy downpours at times, with steady humidity and barometric pressure falling. Winds blowing from the SSE at 12 mph 20 km/h. Gusts up to 28 mph 45 km/h.
Tuesday, November 3, 2026
Mid-Morning
63°F 17°C
Scattered Showers
Mid-Afternoon
63°F 17°C
Scattered Showers
Early-Evening
59°F 15°C
Light Showers
Cool with a high near 63°F 17°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds S at 7 mph 11 km/h.
Wednesday, November 4, 2026
Mid-Morning
58°F 14°C
Drizzle
Mid-Afternoon
62°F 17°C
Partly Cloudy
Early-Evening
58°F 14°C
Overcast
Refreshing around 62°F 17°C, scattered morning showers before drying out later, with steady humidity and steady pressure. Winds swinging from the SSW to the WSW at 5 mph 8 km/h.
Thursday, November 5, 2026
Mid-Morning
57°F 14°C
Overcast
Mid-Afternoon
59°F 15°C
Overcast
Early-Evening
55°F 12°C
Cloudy
Mildly cool near 59°F 15°C, overcast through the afternoon, turning cloudy this evening, with steady humidity and steady pressure.
Friday, November 6, 2026
Mid-Morning
51°F 10°C
Scattered Showers
Mid-Afternoon
54°F 12°C
Scattered Showers
Early-Evening
50°F 10°C
Cloudy
Chilly near 54°F 12°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure.
Saturday, November 7, 2026
Mid-Morning
51°F 10°C
Overcast
Mid-Afternoon
51°F 11°C
Cloudy
Early-Evening
47°F 8°C
Partly Cloudy
Crisp with a high near 51°F 11°C, overcast in the morning, cloudy in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure.
Sunday, November 8, 2026
Mid-Morning
47°F 8°C
Partly Cloudy
Mid-Afternoon
52°F 11°C
Partly Cloudy
Early-Evening
48°F 9°C
Partly Cloudy
Brisk around 52°F 11°C, partly cloudy throughout the day, with steady humidity and steady pressure.
Monday, November 9, 2026
Mid-Morning
46°F 8°C
Sunny
Mid-Afternoon
51°F 11°C
Partly Cloudy
Early-Evening
45°F 7°C
Clear
Cool and brisk at 51°F 11°C, partly cloudy through the afternoon, turning sunny this evening, with steady humidity and steady pressure.
Tuesday, November 10, 2026
Mid-Morning
45°F 7°C
Partly Cloudy
Mid-Afternoon
52°F 11°C
Sunny
Early-Evening
46°F 8°C
Clear
Chilly near 52°F 11°C, partly cloudy in the morning, sunny in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure. Winds blowing from the W at 8 mph 12 km/h. Gusts up to 24 mph 39 km/h.
Wednesday, November 11, 2026
Mid-Morning
46°F 8°C
Sunny
Mid-Afternoon
51°F 10°C
Partly Cloudy
Early-Evening
44°F 7°C
Partly Cloudy
Crisp with a high near 51°F 10°C, sunny in the morning, partly cloudy in the afternoon, and sunny this evening, with steady humidity and steady pressure. Winds turning from the WNW to the NW at 6 mph 10 km/h. Gusts up to 22 mph 35 km/h.
Thursday, November 12, 2026
Mid-Morning
46°F 8°C
Cloudy
Mid-Afternoon
52°F 11°C
Cloudy
Early-Evening
47°F 9°C
Partly Cloudy
Brisk around 52°F 11°C, overcast in the morning, cloudy in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure.
Friday, November 13, 2026
Mid-Morning
46°F 8°C
Partly Cloudy
Mid-Afternoon
50°F 10°C
Cloudy
Early-Evening
45°F 7°C
Scattered Showers
Cool and brisk at 50°F 10°C, scattered downpours possible, with increasing humidity and steady pressure. Winds switching from the E to the NE at 9 mph 14 km/h.
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