Armstrong, IL 14 Day Weather - 61812 WeatherWorld.com
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Armstrong, IL Weather Forecast


Armstrong, IL Weather Forecast Dated: 215 AM Thu Sep 10 2026
Expect a mild stretch with a mix of sun and clouds and occasional showers over the coming period. generally humid conditions and no major pressure swings will dominate.
Thursday, September 10, 2026
Mid-Morning
70°F 21°C
Overcast
Mid-Afternoon
68°F 20°C
Scattered Showers
Early-Evening
67°F 19°C
Scattered Showers
Pleasant near 68°F 20°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure.
Friday, September 11, 2026
Mid-Morning
63°F 17°C
Overcast
Mid-Afternoon
74°F 23°C
Overcast
Early-Evening
70°F 21°C
Overcast
Comfortable with temperatures reaching 74°F 23°C, overcast throughout the day, with steady humidity and steady pressure.
Saturday, September 12, 2026
Mid-Morning
69°F 21°C
Sunny
Mid-Afternoon
81°F 27°C
Partly Cloudy
Early-Evening
79°F 26°C
Sunny
Very warm near 81°F 27°C, though humidity makes it feel like 84°F 29°C, sunny in the morning, cloudy in the afternoon, and sunny this evening, with lower humidity and steady pressure.
Sunday, September 13, 2026
Mid-Morning
73°F 23°C
Overcast
Mid-Afternoon
86°F 30°C
Cloudy
Early-Evening
82°F 27°C
Overcast
Warm and summery around 86°F 30°C (feels like 89°F 32°C), overcast in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure. Winds turning from the WSW to the E at 8 mph 13 km/h.
Monday, September 14, 2026
Mid-Morning
75°F 24°C
Sunny
Mid-Afternoon
91°F 33°C
Sunny
Early-Evening
86°F 30°C
Sunny
Hot and sweltering around 91°F 33°C (heat index 95°F 35°C), sunny throughout the day, with lower humidity and steady pressure. Winds blowing from the SSW at 13 mph 22 km/h. Gusts up to 22 mph 36 km/h.
Tuesday, September 15, 2026
Mid-Morning
73°F 23°C
Scattered Showers
Mid-Afternoon
77°F 25°C
Light Showers
Early-Evening
68°F 20°C
Sunny
Pleasant near 77°F 25°C, locally heavy downpours at times, with lower humidity and steady pressure. Winds moving from the NW to the ESE at 10 mph 15 km/h.
Wednesday, September 16, 2026
Mid-Morning
64°F 18°C
Overcast
Mid-Afternoon
71°F 22°C
Sunny
Early-Evening
67°F 20°C
Cloudy
Comfortable with temperatures reaching 71°F 22°C, overcast in the morning, partly cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure. Winds swinging from the ENE to the E at 8 mph 13 km/h.
Thursday, September 17, 2026
Mid-Morning
66°F 19°C
Light Showers
Mid-Afternoon
71°F 21°C
Light Showers
Early-Evening
69°F 21°C
Heavy Rain Showers
Enjoyable around 71°F 21°C, persistent showers off and on through the day, with increasing humidity and barometric pressure falling. Winds shifting from the SE to the SW at 11 mph 17 km/h. Gusts up to 29 mph 46 km/h.
Friday, September 18, 2026
Mid-Morning
57°F 14°C
Scattered Showers
Mid-Afternoon
61°F 16°C
Scattered Showers
Early-Evening
60°F 15°C
Scattered Showers
Refreshing around 61°F 16°C, locally heavy downpours at times, with lower humidity and barometric pressure rising. Winds turning from the WNW to the NW at 9 mph 15 km/h.
Saturday, September 19, 2026
Mid-Morning
58°F 14°C
Light Fog
Mid-Afternoon
66°F 19°C
Sunny
Early-Evening
61°F 16°C
Sunny
Mildly cool near 66°F 19°C, sunny throughout the day, with lower humidity and steady pressure. Winds switching from the NNW to the NNE at 7 mph 12 km/h.
Sunday, September 20, 2026
Mid-Morning
57°F 14°C
Sunny
Mid-Afternoon
68°F 20°C
Sunny
Early-Evening
63°F 17°C
Sunny
Pleasant near 68°F 20°C, sunny throughout the day, with steady humidity and steady pressure.
Monday, September 21, 2026
Mid-Morning
61°F 16°C
Sunny
Mid-Afternoon
72°F 22°C
Overcast
Early-Evening
66°F 19°C
Overcast
Comfortable with temperatures reaching 72°F 22°C, sunny in the morning, overcast in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure.
Tuesday, September 22, 2026
Mid-Morning
67°F 20°C
Sunny
Mid-Afternoon
82°F 28°C
Sunny
Early-Evening
76°F 25°C
Sunny
Quite warm around 82°F 28°C, sunny throughout the day, with lower humidity and steady pressure. Winds blowing from the SSW at 8 mph 12 km/h.
Wednesday, September 23, 2026
Mid-Morning
72°F 22°C
Sunny
Mid-Afternoon
83°F 28°C
Sunny
Early-Evening
70°F 21°C
Sunny
Warm temperatures up to 83°F 28°C, sunny throughout the day, with steady humidity and steady pressure. Winds increasing from the SW at 7 mph 12 km/h to N at 19 mph 30 km/h. Gusts up to 28 mph 45 km/h.
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