GILSON, IL 61436 Weather Forecast & Current Conditions

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GALESBURG, IL
Current Weather

4:55 AM CDT JUN 9, 2026
Clear
72°F
Feels Like: 72°F
Dewpoint: 72°F
Rel. Hum.: 100%
Visibility: 7 miles
Wind: Calm
Pressure: 29.94 inches
Last 72 hours

Local Area Snow Depth

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GILSON, IL 61436
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TODAY
Patchy fog this morning. Mostly sunny. Warmer with highs in the upper 80s. Southwest winds 5 to 10 mph. Heat index values up to 100 this afternoon.
TONIGHT
Partly cloudy with a chance of showers and thunderstorms. Humid with lows in the lower 70s. South winds 5 to 10 mph. Chance of rain 30 percent.
WEDNESDAY
Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Humid with highs around 90. Southwest winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 20 percent. Heat index values up to 101.
WEDNESDAY NIGHT
Becoming mostly cloudy after midnight. A chance of thunderstorms. Showers likely, mainly in the evening. Lows in the lower 70s. Southwest winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 70 percent.
THURSDAY
Mostly sunny. A chance of showers and thunderstorms in the morning, then showers with thunderstorms likely in the afternoon. Humid with highs in the upper 80s. Southwest winds 15 to 20 mph. Chance of rain 90 percent. Heat index values up to 100.
THURSDAY NIGHT
Showers and thunderstorms likely in the evening, then mostly clear after midnight. Cooler with lows in the lower 60s. Chance of rain 60 percent.
FRIDAY
Sunny. Highs in the lower 80s.
FRIDAY NIGHT
Clear. Lows in the lower 60s.
SATURDAY
Sunny. Highs in the mid 80s.
SATURDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. A chance of thunderstorms in the evening. A chance of showers. Lows in the lower 60s. Chance of rain 30 percent.
SUNDAY
Mostly sunny. Highs in the upper 70s.
SUNDAY NIGHT
Partly cloudy. A chance of showers in the evening. Lows in the upper 50s. Chance of rain 30 percent.
MONDAY
Mostly sunny. Highs in the upper 70s.

Visible Weather Satellite
GILSON, IL 61436
Infrared Weather Satellite
GILSON, IL 61436
NEXRAD Weather Radar
GILSON, IL 61436

GALESBURG, IL 3 hourly weather forecast

weather forecast created  7:00 PM CDT  6/ 8/2026
Tuesday
9 JUN 2026
GILSON, IL 61436 weather forecast Day 1, 0 hours 1 AM 72° 72° Partly Cloudy 3%

0% Thunder
( 13% severe)
SSW   3 93% 70°
Low 70° GILSON, IL 61436 weather forecast Day 1, 3 hours 4 AM 71° 71° Mostly Cloudy SW   3 97% 70°
High 89° GILSON, IL 61436 weather forecast Day 1, 6 hours 7 AM 71° 71° Mostly Cloudy 7%

0% Thunder
( 17% severe)
SW   3 97% 70°

Mostly Cloudy



GILSON, IL 61436 weather forecast Day 1, 9 hours 10 AM 79° 83° Mostly Cloudy WSW   5 85% 74°
GILSON, IL 61436 weather forecast Day 1, 12 hours 1 PM 85° 93° Mostly Cloudy 11%
RAIN
<.01 in
0% Thunder
( 32% severe)
SW   7 72% 75°
GILSON, IL 61436 weather forecast Day 1, 15 hours 4 PM 88° 98° Partly Cloudy SW   7 66% 75°
GILSON, IL 61436 weather forecast Day 1, 18 hours 7 PM 86° 95° Partly Cloudy 13%
RAIN
<.01 in
0% Thunder
( 33% severe)
SW   5 70% 75°
GILSON, IL 61436 weather forecast Day 1, 21 hours 10 PM 79° 82° Partly Cloudy S   7 82% 73°
Wednesday
10 JUN 2026
GILSON, IL 61436 weather forecast Day 2, 0 hours 1 AM 77° 78° Mostly Cloudy 17%
RAIN
<.01 in
0% Thunder
( 20% severe)
S   8 87% 73°
Low 71° GILSON, IL 61436 weather forecast Day 2, 3 hours 4 AM 75° 75° Partly Cloudy SSW   9 90% 72°
High 90° GILSON, IL 61436 weather forecast Day 2, 6 hours 7 AM 74° 74° Partly Cloudy 2%

0% Thunder
( 25% severe)
SSW   10 90% 71°

Partly Cloudy

Chance of Rain

GILSON, IL 61436 weather forecast Day 2, 9 hours 10 AM 83° 89° Partly Cloudy SSW   15 72% 73°
GILSON, IL 61436 weather forecast Day 2, 12 hours 1 PM 88° 97° Partly Cloudy 30%
RAIN
.25–.5 in
0% Thunder
( 48% severe)
SSW   18 63% 74°
GILSON, IL 61436 weather forecast Day 2, 15 hours 4 PM 90° 99° Partly Cloudy SSW   20 58% 73°
GILSON, IL 61436 weather forecast Day 2, 18 hours 7 PM 86° 92° Partly Cloudy 55%
RAIN
***
0% Thunder
( 39% severe)
SSW   16 63% 72°
GILSON, IL 61436 weather forecast Day 2, 21 hours 10 PM 80° 83° Partly Cloudy SSW   13 72% 70°

GALESBURG, IL extended weather forecast

Thursday
11 JUN 2026
Friday
12 JUN 2026
Saturday
13 JUN 2026
Sunday
14 JUN 2026
Monday
15 JUN 2026
Low 70° Low 56° Low 54° Low 61° Low 59°
High 85° High 79° High 83° High 75° High 74°
GILSON, IL 61436 weather forecast Day 3 GILSON, IL 61436 weather forecast Day 4 GILSON, IL 61436 weather forecast Day 5 GILSON, IL 61436 weather forecast Day 6 GILSON, IL 61436 weather forecast Day 7
Overcast
92% Rain
Mostly Cloudy
50% Rain
Partly Cloudy
11% Rain
Overcast
58% Rain
Overcast
46% Rain
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