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Fairfield, IL Weather Forecast
Fairfield, IL Weather Forecast Dated: 1259 PM Thu Nov 12 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.
Thursday, November 12, 2026
Mid-Morning
51°F 10°C
Partly Cloudy
Mid-Afternoon
49°F 9°C
Scattered Showers
Early-Evening
43°F 6°C
Partly Cloudy
Brisk around 49°F 9°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure. Winds turning from the NW to the NNW at 13 mph 20 km/h. Gusts up to 24 mph 38 km/h.
Friday, November 13, 2026
Mid-Morning
39°F 4°C
Scattered Showers
Mid-Afternoon
44°F 7°C
Overcast
Early-Evening
39°F 5°C
Partly Cloudy
Biting cold near 44°F 7°C, scattered downpours possible, with steady humidity and steady pressure. Winds blowing from the NNW at 13 mph 21 km/h.
Saturday, November 14, 2026
Mid-Morning
39°F 4°C
Sunny
Mid-Afternoon
49°F 9°C
Sunny
Early-Evening
39°F 4°C
Clear
Chilly near 49°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 11°C
Cloudy
Early-Evening
42°F 5°C
Partly Cloudy
Crisp with a high near 51°F 11°C, sunny in the morning, cloudy in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure.
Monday, November 16, 2026
Mid-Morning
44°F 7°C
Sunny
Mid-Afternoon
53°F 12°C
Sunny
Early-Evening
42°F 6°C
Clear
Brisk around 53°F 12°C, sunny throughout the day, with steady humidity and steady pressure.
Tuesday, November 17, 2026
Mid-Morning
45°F 7°C
Sunny
Mid-Afternoon
55°F 13°C
Sunny
Early-Evening
44°F 6°C
Clear
Cool and brisk at 55°F 13°C, sunny throughout the day, with steady humidity and steady pressure.
Wednesday, November 18, 2026
Mid-Morning
46°F 8°C
Sunny
Mid-Afternoon
55°F 13°C
Sunny
Early-Evening
47°F 8°C
Clear
Chilly near 55°F 13°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure.
Thursday, November 19, 2026
Mid-Morning
49°F 10°C
Overcast
Mid-Afternoon
58°F 14°C
Partly Cloudy
Early-Evening
50°F 10°C
Clear
Cool with a high near 58°F 14°C, overcast in the morning, partly cloudy in the afternoon, and sunny this evening, with steady humidity and steady pressure.
Friday, November 20, 2026
Mid-Morning
54°F 12°C
Partly Cloudy
Mid-Afternoon
63°F 17°C
Overcast
Early-Evening
56°F 13°C
Overcast
Refreshing around 63°F 17°C, partly cloudy in the morning, becoming overcast through the afternoon and evening, with steady humidity and steady pressure.
Saturday, November 21, 2026
Mid-Morning
57°F 14°C
Cloudy
Mid-Afternoon
64°F 18°C
Cloudy
Early-Evening
57°F 14°C
Overcast
Mildly cool near 64°F 18°C, overcast throughout the day, with steady humidity and steady pressure.
Sunday, November 22, 2026
Mid-Morning
56°F 13°C
Overcast
Mid-Afternoon
63°F 17°C
Cloudy
Early-Evening
59°F 15°C
Partly Cloudy
Comfortable at 63°F 17°C, overcast through the afternoon, turning cloudy this evening, with steady humidity and barometric pressure falling. Winds SSE at 11 mph 18 km/h. Gusts up to 27 mph 44 km/h.
Monday, November 23, 2026
Mid-Morning
60°F 16°C
Drizzle
Mid-Afternoon
63°F 17°C
Scattered Showers
Early-Evening
60°F 16°C
Light Showers
Cool with a high near 63°F 17°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds out of the S at 12 mph 19 km/h. Gusts up to 25 mph 40 km/h.
Tuesday, November 24, 2026
Mid-Morning
51°F 10°C
Partly Cloudy
Mid-Afternoon
52°F 11°C
Partly Cloudy
Early-Evening
48°F 9°C
Overcast
Brisk around 52°F 11°C, cloudy throughout the day, with steady humidity and barometric pressure rising. Winds shifting from the WSW to the W at 10 mph 15 km/h. Gusts up to 23 mph 37 km/h.
Wednesday, November 25, 2026
Mid-Morning
43°F 6°C
Partly Cloudy
Mid-Afternoon
49°F 10°C
Partly Cloudy
Early-Evening
44°F 7°C
Overcast
Cool and brisk at 49°F 10°C, partly cloudy in the morning, becoming cloudy through the afternoon and evening, with steady humidity and steady pressure.
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