10-day forecast for Alta, IL: 47° to 76°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
76°
Best day: Wednesday, October 28
55° · 0.63 in
Worst day: Thursday, November 5
Tap any day below to see morning, afternoon, evening and overnight.
Wed, 2876° / 54°0
Morning56°feels 55°
Afternoon75°feels 75°
Evening66°feels 65°
Overnight58°feels 58°
76 °
Alta, Wednesday, 28 October
Clear. High 76°, low 54°.
Pressure30.18 inHg
Wind8 mph S
Humidity59%
Visibility6.2 mi
Dew point53°
Thu, 2970° / 55°0
Morning58°feels 57°
Afternoon68°feels 67°
Evening59°feels 59°
Overnight61°feels 60°
70 °
Alta, Thursday, 29 October
Overcast. High 70°, low 55°.
Pressure30.12 inHg
Wind8.6 mph W
Humidity62%
Visibility6.2 mi
Dew point56°
Fri, 3069° / 47°0.03
Morning48°feels 44°
Afternoon68°feels 68°
Evening61°feels 61°
Overnight50°feels 49°
69 °
Alta, Friday, 30 October
Light rain. High 69°, low 47°.
Pressure30.27 inHg
Wind6.5 mph SE
Humidity61%
Visibility6.2 mi
Dew point51°
Sat, 3171° / 58°0.19
Morning59°feels 60°
Afternoon68°feels 68°
Evening60°feels 61°
Overnight59°feels 59°
71 °
Alta, Saturday, 31 October
Rain. High 71°, low 58°.
Pressure30.18 inHg
Wind6 mph SE
Humidity66%
Visibility—
Dew point56°
Sun, 0171° / 54°0.02
Morning58°feels 58°
Afternoon68°feels 68°
Evening62°feels 62°
Overnight58°feels 58°
71 °
Alta, Sunday, 1 November
Light rain. High 71°, low 54°.
Pressure30.18 inHg
Wind7.6 mph SE
Humidity63%
Visibility—
Dew point54°
Mon, 0263° / 59°0
Morning60°feels 60°
Afternoon62°feels 62°
Evening58°feels 58°
Overnight58°feels 58°
63 °
Alta, Monday, 2 November
Light rain. High 63°, low 59°.
Pressure29.85 inHg
Wind8.9 mph NE
Humidity83%
Visibility—
Dew point57°
Tue, 0360° / 56°0.03
Morning57°feels 57°
Afternoon60°feels 59°
Evening58°feels 56°
Overnight56°feels 55°
60 °
Alta, Tuesday, 3 November
Light rain. High 60°, low 56°.
Pressure29.94 inHg
Wind17.3 mph E
Humidity75%
Visibility—
Dew point52°
Wed, 0455° / 52°0.27
Morning53°feels 51°
Afternoon52°feels 51°
Evening52°feels 51°
Overnight53°feels 52°
55 °
Alta, Wednesday, 4 November
Light rain. High 55°, low 52°.
Pressure29.91 inHg
Wind17.6 mph NE
Humidity87%
Visibility—
Dew point48°
Thu, 0555° / 53°0.63
Morning55°feels 54°
Afternoon54°feels 54°
Evening53°feels 53°
Overnight53°feels 52°
55 °
Alta, Thursday, 5 November
Rain. High 55°, low 53°.
Pressure29.65 inHg
Wind15.8 mph NE
Humidity96%
Visibility—
Dew point53°
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 Alta, 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.