Will it rain in Illinois today? from now until midnight
No rain
The highest chance of rain is only 0%. You can head out without an umbrella.
No umbrella neededWill it rain in Illinois tomorrow? Friday, Oct 30
No rain
The highest chance of rain is only 7%. You can head out without an umbrella.
No umbrella neededHourly chance of rain in Illinois
The number above each bar is the chance of rain for that hour. Hover over (or tap) a bar to see the rainfall amount.
Will it rain in Illinois in the next 7 days?
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TodayOct 29
No rain
0% · 0 in
-
TomorrowOct 30
No rain
7% · 0 in
-
SaturdayOct 31
Possible rain
45% · 0 in
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SundayNov 1
Rain
89% · 0.06 in
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MondayNov 2
Rain
93% · 0.04 in
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TuesdayNov 3
Rain
100% · 0.32 in
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WednesdayNov 4
Rain
100% · 0.34 in
How to read the rain forecast
Chance of rain (%) is the probability of rain in Illinois during that hour, not how long it will rain or how heavy it will be. For example, 60% means that in 10 similar weather situations, it rained about 6 times.
Rainfall (in) tells you how heavy the rain is: under 0.10 in per hour is light rain, 0.10 in–0.30 in per hour is moderate, and over 0.30 in per hour is heavy. In summer, afternoon thunderstorms can bring short, intense downpours and flash flooding.
This page updates about every hour. During severe thunderstorms, flash floods, tornadoes or hurricanes, follow the official National Weather Service warnings for Illinois.