Weather forecast for 10 days
Simpson, IL

Weather forecast for the weekend

Saturday, May 17.

Mostly Sunny
5:42 am

8:00 pm
CDT
Mostly Sunny
79°F / 57°F
  • Wind: 12mph W
  • Humidity: 53%
  • Precip. probability: 1%
  • Precipitation: 0"
  • UV index: 9
Today, on Saturday, May 17, sunshine will lead the day, with clouds making only brief appearances.
Temperature fluctuations between a temperate 78.8°F and a moderate 57.2°F are expected.
The predicted high for today will reflect the normal May maximum of 75.7°F.
Sunrise will be at 5:42 am and sunset at 8:00 pm; the daylight will last for 14h and 18min.

Sunday, May 18.

Partly Cloudy
5:41 am

8:01 pm
CDT
Partly Cloudy
77°F / 63°F
  • Wind: 4mph ENE
  • Humidity: 58%
  • Precip. probability: 24%
  • Precipitation: 0.31"
  • UV index: 8
On Sunday, May 18, expect a partly sunny afternoon with variable cloud cover.
The likelihood of rainfall for tomorrow is low, and light precipitation is expected. Temperatures are forecasted to range from a maximum of a moderately hot 77°F to a minimum of an enjoyable 62.6°F.
The predicted daytime maximum should align with the typical May high of 75.7°F.
Sunrise will be at 5:41 am and sunset at 8:01 pm; tomorrow's daylight will last for 14h and 20min.

Frequently asked questions

What is the weather forecast for Simpson for tomorrow?
On Sunday, expect partly sunny skies with periods of cloudiness.
Will it rain tomorrow?
With a probability of 24%, light precipitation of 0.31" is anticipated.
What will be the maximum temperature tomorrow?
Tomorrow, the maximum temperature will be 77°F, while the minimum temperature will be 62.6°F.
The highest temperature tomorrow will be in line with the average maximum temperature in May. The lowest temperature will be a few degrees higher than the average low of 57.9°F.
When are sunrise and sunset tomorrow in Simpson?
On Sunday, in Simpson, sunrise will be at 5:41 am and sunset at 8:01 pm (CDT).
How many hours of daylight will Simpson have tomorrow?
In Simpson, the length of the day tomorrow will be 14h and 20min.
What is the weather forecast for Simpson for the next ten days?
In Simpson, weather will be unstable, and a combination of dull, damp, dry and sunny and lightning-active weather is expected for the next ten days.
Will it rain in the next ten days?
Rainfall is forecasted for Sunday through Tuesday, next Saturday through next Monday in Simpson. Monday, with moderate precipitation of 0.79", will be the day with the most rainfall.
How warm will it be in the next ten days?
The maximum temperature will vary between 62.6°F and 78.8°F, as the minimum temperature will range between 48.2°F and 66.2°F.
What will be the warmest and the coldest days?
With a maximum temperature of 78.8°F, Saturday, Monday and Tuesday will be the warmest days. With a maximum temperature of 62.6°F, Wednesday will be the coldest day.

Long-term weather forecast

SatMay 17.
  • 79°F
  • 57°F
Mostly Sunny
Mostly Sunny
  • Wind: 12mph W
  • Humidity: 53%
  • UV index: 9
  • Precip. probability: 1%
  • Precipitation: 0"
  • 5:42 am 8:00 pm CDT
SunMay 18.
  • 77°F
  • 63°F
Partly Cloudy
Partly Cloudy
  • Wind: 4mph ENE
  • Humidity: 58%
  • UV index: 8
  • Precip. probability: 24%
  • Precipitation: 0.31"
  • 5:41 am 8:01 pm CDT
MonMay 19.
  • 79°F
  • 66°F
AM Thunderstorms
AM Thunderstorms
  • Wind: 9mph SE
  • Humidity: 81%
  • UV index: 8
  • Precip. probability: 54%
  • Precipitation: 0.79"
  • 5:40 am 8:02 pm CDT
TueMay 20.
  • 79°F
  • 57°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 14mph SSW
  • Humidity: 81%
  • UV index: 8
  • Precip. probability: 56%
  • Precipitation: 0.39"
  • 5:40 am 8:03 pm CDT
WedMay 21.
  • 63°F
  • 48°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 14mph WNW
  • Humidity: 70%
  • UV index: 6
  • Precip. probability: 17%
  • Precipitation: 0"
  • 5:39 am 8:03 pm CDT
ThuMay 22.
  • 68°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Wind: 12mph NW
  • Humidity: 59%
  • UV index: 9
  • Precip. probability: 6%
  • Precipitation: 0"
  • 5:38 am 8:04 pm CDT
FriMay 23.
  • 72°F
  • 55°F
Mostly Sunny
Mostly Sunny
  • Wind: 8mph W
  • Humidity: 57%
  • UV index: 9
  • Precip. probability: 7%
  • Precipitation: 0"
  • 5:38 am 8:05 pm CDT
SatMay 24.
  • 72°F
  • 61°F
AM Showers
AM Showers
  • Wind: 9mph S
  • Humidity: 74%
  • UV index: 8
  • Precip. probability: 32%
  • Precipitation: 0.08"
  • 5:37 am 8:06 pm CDT
SunMay 25.
  • 75°F
  • 63°F
AM Showers
AM Showers
  • Wind: 9mph SSE
  • Humidity: 72%
  • UV index: 8
  • Precip. probability: 33%
  • Precipitation: 0.08"
  • 5:37 am 8:07 pm CDT
MonMay 26.
  • 75°F
  • 61°F
PM Showers
PM Showers
  • Wind: 11mph SW
  • Humidity: 69%
  • UV index: 9
  • Precip. probability: 37%
  • Precipitation: 0.28"
  • 5:36 am 8:07 pm CDT
Over the course of the next ten days, expect shifting weather, and a mix of dull, showery, bright and stormy weather is predicted.
Rainfall is forecasted for Sunday through Tuesday, next Saturday through next Monday.
Substantial differences in temperature are forecasted in the upcoming days. The temperature is expected to swing from 62.6°F up to 78.8°F, while the lowest night temperatures will vary also significantly, as the lowest temperatures will be recorded between 48.2°F and 66.2°F.
The warmest days will be Saturday, Monday and Tuesday, with a maximum of 78.8°F; with the highest temperature of 62.6°F, Wednesday will be the coldest day.
Updated: May 17, 2025 @ 10:22:00 UTC
Published by: Weather Atlas | About Us
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