Niantic, IL Weather Forecast & Current Conditions

Feedback E-mail the Weather

Quick Clicks

Weather World

Niantic, IL Weather Maps

°F °C°F °C
Niantic Weather Map
UTC Time: 9/19/2026, 19:26
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Niantic, IL Regional Weather

Expires:202609192000;;724972
ASUS43 KLOT 191910
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
200 PM CDT SAT SEP 19 2026

NOTE: "FAIR" INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO
SIGNIFICANT WEATHER AND/OR OBSTRUCTIONS TO VISIBILITY.

* THESE STATIONS ARE NOT UNDER NWS QUALITY CONTROL. THEY ALSO MAY NOT
  REPORT WEATHER SUCH AS PRECIPITATION OR FOG.


ILZ028>032-037-038-041>044-048-051>054-059>061-192000-
CENTRAL ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
PONTIAC        CLOUDY    76  70  81 S3        29.95F TC  25           
BLOOMINGTON    CLOUDY    79  72  79 S7        29.97F HX  82  TC  26   
DECATUR        PTSUNNY   83  73  72 CALM      29.96F HX  89  TC  28   
PEORIA         CLOUDY    76  68  76 SE6       29.94F TC  24           
LACON*         CLOUDY    74  65  73 S3        29.93F TC  24           
LINCOLN*       PTSUNNY   85  73  67 S6        29.95F HX  91  TC  29   
SPRINGFIELD    PTSUNNY   83  72  69 SE6       29.95F HX  88  TC  28   
TAYLORVILLE    NOT AVBL                                               
$$


SKY/WX - Weather  TMP - Temperature  DP - Dew Point  RH - Humidity
WIND - Wind Direction/Speed PRES - Barometric Pressure VSB - Visibility
WCI - Wind Chill Index E13G22 Wind - East Wind 13 mph/Gusts of 22 mph

Niantic, IL

Afternoon
Rain Showers
88°/ 68° 31°/ 20°
20%
Sunday
Thunderstorms
85°/ 60° 29°/ 16°
50%
Monday
Rain Showers
72°/ 55° 22°/ 13°
70%
Tuesday
Mostly Cloudy
68°20°
0%
Wednesday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Thursday
Mostly Cloudy
75°24°
0%
Friday
Mostly Cloudy
75°24°
0%

Day: Mostly cloudy with a 20 percent chance of showers. Near steady temperature in the upper 80s. Southwest winds around 5 mph.

Night: Mostly cloudy. Lows in the upper 60s. South winds around 5 mph.

Springfield, IL

Afternoon
Mostly Cloudy
88°/ 70° 31°/ 21°
0%
Sunday
Thunderstorms
85°/ 62° 29°/ 17°
70%
Monday
Rain Showers
72°/ 55° 22°/ 13°
70%
Tuesday
Mostly Cloudy
68°20°
0%
Wednesday
Mostly Cloudy
68°/ 55° 20°/ 13°
0%
Thursday
Mostly Cloudy
75°24°
0%
Friday
Mostly Cloudy
75°24°
0%

Day: Mostly cloudy. Near steady temperature in the upper 80s. Southwest winds around 5 mph.

Night: Mostly cloudy. Lows around 70. South winds around 5 mph.

Lincoln, IL

Afternoon
Rain Showers
85°/ 68° 29°/ 20°
20%
Sunday
Thunderstorms
82°/ 60° 28°/ 16°
50%
Monday
Rain Showers
68°/ 55° 20°/ 13°
70%
Tuesday
Mostly Cloudy
68°20°
0%
Wednesday
Mostly Cloudy
68°/ 55° 20°/ 13°
0%
Thursday
Mostly Cloudy
75°24°
0%
Friday
Mostly Cloudy
75°24°
0%

Day: Mostly cloudy with a 20 percent chance of showers. Near steady temperature in the mid 80s. South winds around 5 mph.

Night: Mostly cloudy. Lows in the upper 60s. South winds around 5 mph.

Taylorville, IL

Afternoon
Rain Showers
90°/ 70° 32°/ 21°
20%
Sunday
Thunderstorms
88°/ 62° 31°/ 17°
70%
Monday
Rain Showers
75°/ 55° 24°/ 13°
70%
Tuesday
Mostly Cloudy
70°21°
0%
Wednesday
Mostly Cloudy
70°/ 52° 21°/ 11°
0%
Thursday
Mostly Cloudy
75°24°
0%
Friday
Mostly Cloudy
75°24°
0%

Day: Mostly cloudy with a 20 percent chance of showers. Near steady temperature around 90. Southwest winds around 5 mph.

Night: Mostly cloudy in the evening, then becoming partly cloudy. Lows around 70. South winds around 5 mph.

Clinton, IL

Afternoon
Rain Showers
85°/ 68° 29°/ 20°
20%
Sunday
Thunderstorms
80°/ 58° 27°/ 14°
50%
Monday
Rain Showers
68°/ 55° 20°/ 13°
70%
Tuesday
Mostly Cloudy
68°20°
0%
Wednesday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Thursday
Mostly Cloudy
72°22°
0%
Friday
Mostly Cloudy
72°22°
0%

Day: Mostly cloudy with a 20 percent chance of showers. Near steady temperature in the mid 80s. South winds 5 to 10 mph.

Night: Mostly cloudy. Lows in the upper 60s. South winds around 5 mph.

Shelbyville, IL

Afternoon
Thunderstorms
90°/ 68° 32°/ 20°
20%
Sunday
Thunderstorms
88°/ 62° 31°/ 17°
50%
Monday
Rain Showers
75°/ 55° 24°/ 13°
70%
Tuesday
Mostly Cloudy
70°21°
0%
Wednesday
Mostly Cloudy
70°/ 52° 21°/ 11°
0%
Thursday
Mostly Cloudy
75°24°
0%
Friday
Mostly Cloudy
75°24°
0%

Day: Mostly cloudy with a slight chance of showers and thunderstorms. Near steady temperature around 90. West winds around 5 mph. Chance of rain 20 percent.

Night: Mostly cloudy in the evening, then becoming partly cloudy. Lows in the upper 60s. South winds around 5 mph.

Sullivan, IL

Afternoon
Thunderstorms
88°/ 68° 31°/ 20°
20%
Sunday
Thunderstorms
88°/ 60° 31°/ 16°
50%
Monday
Rain Showers
72°/ 55° 22°/ 13°
70%
Tuesday
Mostly Cloudy
68°20°
0%
Wednesday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Thursday
Mostly Cloudy
75°24°
0%
Friday
Mostly Cloudy
75°24°
0%

Day: Mostly cloudy with a slight chance of showers and thunderstorms. Near steady temperature in the upper 80s. Southwest winds around 5 mph. Chance of rain 20 percent.

Night: Mostly cloudy in the evening, then becoming partly cloudy. Lows in the upper 60s. South winds around 5 mph.

Monticello, IL

Afternoon
Thunderstorms
85°/ 68° 29°/ 20°
20%
Sunday
Thunderstorms
82°/ 58° 28°/ 14°
50%
Monday
Rain Showers
68°/ 55° 20°/ 13°
70%
Tuesday
Mostly Cloudy
68°20°
0%
Wednesday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Thursday
Mostly Cloudy
75°24°
0%
Friday
Mostly Cloudy
75°24°
0%

Day: Mostly cloudy with a slight chance of showers and thunderstorms. Near steady temperature in the mid 80s. South winds around 5 mph. Chance of rain 20 percent.

Night: Mostly cloudy. Lows in the upper 60s. South winds around 5 mph.

Petersburg, IL

Afternoon
Cloudy
88°/ 68° 31°/ 20°
0%
Sunday
Thunderstorms
82°/ 60° 28°/ 16°
60%
Monday
Rain Showers
70°/ 55° 21°/ 13°
70%
Tuesday
Mostly Cloudy
68°20°
0%
Wednesday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Thursday
Mostly Cloudy
75°24°
0%
Friday
Mostly Cloudy
75°24°
0%

Day: Cloudy. Near steady temperature in the upper 80s. Southwest winds around 5 mph.

Night: Mostly cloudy. Lows in the upper 60s. Southwest winds around 5 mph.

Bloomington, IL

Afternoon
Rain Showers
82°/ 68° 28°/ 20°
20%
Sunday
Thunderstorms
78°/ 58° 26°/ 14°
50%
Monday
Rain Showers
65°/ 52° 18°/ 11°
70%
Tuesday
Mostly Cloudy
68°20°
0%
Wednesday
Mostly Cloudy
68°20°
0%
Thu Night
Mostly Cloudy
68°20°
0%
Friday
Partly Cloudy
72°22°
0%

Day: Mostly cloudy with a 20 percent chance of showers. Near steady temperature in the lower 80s. South winds 5 to 10 mph.

Night: Mostly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the upper 60s. South winds 5 to 10 mph, becoming southwest after midnight. Chance of rain 20 percent.

Pekin, IL

Afternoon
Mostly Cloudy
82°/ 68° 28°/ 20°
20%
Sunday
Thunderstorms
78°/ 58° 26°/ 14°
50%
Monday
Rain Showers
68°/ 55° 20°/ 13°
70%
Tuesday
Mostly Cloudy
65°18°
0%
Wednesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Thursday
Mostly Cloudy
72°22°
0%
Friday
Mostly Cloudy
72°22°
0%

Day: Mostly cloudy. Near steady temperature in the lower 80s. South winds 5 to 10 mph.

Night: Mostly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the upper 60s. South winds 5 to 10 mph. Chance of rain 20 percent.

Havana, IL

Afternoon
Cloudy
88°/ 68° 31°/ 20°
20%
Sunday
Thunderstorms
80°/ 60° 27°/ 16°
60%
Monday
Rain Showers
68°/ 55° 20°/ 13°
70%
Tuesday
Mostly Cloudy
68°20°
0%
Wednesday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Thursday
Mostly Cloudy
75°24°
0%
Friday
Mostly Cloudy
75°24°
0%

Day: Cloudy. Near steady temperature in the upper 80s. South winds around 5 mph.

Night: Mostly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the upper 60s. Southwest winds around 5 mph. Chance of rain 20 percent.

Montgomery, IL

Afternoon
Thunderstorms
92°/ 70° 33°/ 21°
20%
Sunday
Thunderstorms
92°/ 62° 33°/ 17°
70%
Monday
Thunderstorms
78°/ 58° 26°/ 14°
70%
Tuesday
Rain Showers
72°/ 52° 22°/ 11°
20%
Wed-Wed Night
Cloudy
72°22°
0%
Thursday
Partly Cloudy
75°/ 55° 24°/ 13°
20%

Day: Partly sunny with isolated showers and thunderstorms. Hot. Near steady temperature in the lower 90s. Southwest winds around 5 mph. Chance of rain 20 percent.

Night: Mostly cloudy in the evening, then becoming partly cloudy. Lows around 70. South winds around 5 mph.

Champaign, IL

Afternoon
Thunderstorms
85°/ 68° 29°/ 20°
20%
Sunday
Thunderstorms
82°/ 58° 28°/ 14°
50%
Monday
Rain Showers
68°/ 55° 20°/ 13°
70%
Tue Night-Wed
Mostly Cloudy
52°11°
0%
Wed Night
Mostly Cloudy
52°11°
0%
Thursday
Mostly Cloudy
72°22°
0%
Friday
Mostly Cloudy
72°22°
0%

Day: Mostly cloudy with a slight chance of showers and thunderstorms. Near steady temperature in the mid 80s. Southeast winds around 5 mph. Chance of rain 20 percent.

Night: Mostly cloudy. Lows in the upper 60s. South winds around 5 mph.

Tuscola, IL

Afternoon
Thunderstorms
88°/ 68° 31°/ 20°
20%
Sunday
Thunderstorms
85°/ 60° 29°/ 16°
40%
Monday
Rain Showers
72°/ 55° 22°/ 13°
70%
Tuesday
Mostly Cloudy
70°21°
0%
Wednesday
Mostly Cloudy
70°/ 52° 21°/ 11°
0%
Thursday
Mostly Cloudy
75°24°
0%
Friday
Mostly Cloudy
75°24°
0%

Day: Mostly cloudy with a slight chance of showers and thunderstorms. Near steady temperature in the upper 80s. Southwest winds around 5 mph. Chance of rain 20 percent.

Night: Mostly cloudy in the evening, then becoming partly cloudy. Lows in the upper 60s. South winds around 5 mph.

Greene, IL

Afternoon
Mostly Cloudy
92°/ 70° 33°/ 21°
0%
Sunday
Thunderstorms
88°/ 62° 31°/ 17°
70%
Monday
Thunderstorms
75°/ 55° 24°/ 13°
70%
Tue-Tue Night
Mostly Cloudy
68°20°
0%
Wed-Wed Night
Cloudy
72°22°
0%
Thursday
Partly Cloudy
75°/ 55° 24°/ 13°
20%

Day: Mostly cloudy. Hot. Near steady temperature in the lower 90s. Southwest winds around 5 mph.

Night: Partly cloudy. Lows around 70. South winds around 5 mph.

Beardstown, IL

Afternoon
Cloudy
88°/ 68° 31°/ 20°
20%
Sunday
Thunderstorms
82°/ 60° 28°/ 16°
70%
Monday
Rain Showers
68°/ 55° 20°/ 13°
70%
Tuesday
Mostly Cloudy
68°20°
0%
Wednesday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Thursday
Mostly Cloudy
75°24°
0%
Friday
Mostly Cloudy
75°24°
0%

Day: Cloudy. Near steady temperature in the upper 80s. Southwest winds around 5 mph.

Night: Mostly cloudy. A slight chance of showers after midnight. Lows in the upper 60s. Southwest winds around 5 mph. Chance of rain 20 percent.

Jacksonville, IL

Afternoon
Mostly Cloudy
90°/ 68° 32°/ 20°
0%
Sunday
Thunderstorms
85°/ 62° 29°/ 17°
70%
Monday
Rain Showers
72°/ 55° 22°/ 13°
70%
Tuesday
Mostly Cloudy
68°20°
0%
Wednesday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Thursday
Mostly Cloudy
75°24°
0%
Friday
Mostly Cloudy
75°24°
0%

Day: Mostly cloudy. Near steady temperature around 90. Southwest winds around 5 mph.

Night: Mostly cloudy in the evening, then becoming partly cloudy. Lows in the upper 60s. Southwest winds around 5 mph.

Charleston, IL

Afternoon
Thunderstorms
90°/ 70° 32°/ 21°
20%
Sunday
Thunderstorms
88°/ 62° 31°/ 17°
50%
Monday
Rain Showers
75°/ 55° 24°/ 13°
70%
Tuesday
Mostly Cloudy
70°21°
0%
Wednesday
Mostly Cloudy
70°/ 55° 21°/ 13°
0%
Thursday
Mostly Cloudy
75°24°
0%
Friday
Mostly Cloudy
75°24°
0%

Day: Partly sunny with a slight chance of showers and thunderstorms. Near steady temperature around 90. West winds around 5 mph. Chance of rain 20 percent.

Night: Mostly cloudy in the evening, then becoming partly cloudy. Lows around 70. South winds around 5 mph.

Fayette, IL

Afternoon
Thunderstorms
92°/ 70° 33°/ 21°
20%
Sunday
Thunderstorms
92°/ 62° 33°/ 17°
70%
Monday
Thunderstorms
78°/ 58° 26°/ 14°
70%
Tuesday
Rain Showers
72°/ 52° 22°/ 11°
20%
Wed-Wed Night
Cloudy
72°22°
0%
Thursday
Partly Cloudy
75°/ 55° 24°/ 13°
20%

Day: Partly sunny with isolated showers and thunderstorms. Hot. Near steady temperature in the lower 90s. Southwest winds around 5 mph. Chance of rain 20 percent.

Night: Mostly cloudy in the evening, then becoming partly cloudy. Lows around 70. South winds around 5 mph.

Names listed above may include county names.

Trending Headlines

Trending Entertainment Headlines

Niantic Radar Loop

Use the map search tool if you want to place a location marker on the radar map...

Niantic Quick Facts

National Two Day Weather Forecast


E-mail the Niantic Weather Forecast

Voice your opinion or tell us about page issues...