Lancaster, IA Weather Forecast & Current Conditions

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Lancaster, IA Weather Maps

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Lancaster Weather Map
UTC Time: 9/17/2026, 12:39
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Lancaster, IA Regional Weather

Expires:202609171300;;600042
ASUS43 KDMX 171210
RWRIA 

WEATHER ROUNDUP FOR IOWA
NATIONAL WEATHER SERVICE DES MOINES IA
700 AM CDT THU SEP 17 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 NWS STATIONS...THUS NOT UNDER NWS
QUALITY CONTROL.  THEY ALSO DO NOT REPORT WEATHER SUCH 
AS PRECIPITATION OR FOG.  


IAZ062-063-075>077-085>089-095>099-171300-
   SOUTHEAST IOWA
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
BURLINGTON     PTCLDY    71  71 100 CALM      30.17R TC  22           
6HR MIN TEMP:  70; 6HR MAX TEMP:  72;                                

FAIRFIELD *      N/A     72  72 100 N6        30.19R FOG     TC  22   
FORT MADISON * CLEAR     72  72 100 S7        30.16S TC  22           
OSKALOOSA *      N/A     71  71  99 NE5       30.19R VSB 1/4 TC  22   
WASHINGTON *   FOG       70  70 100 N6        30.18R VSB 1/4 TC  21   
$$

ABBREVIATIONS USED IN REMARKS
   TC - TEMPERATURES IN CELSIUS
  WCI - WIND CHILL INDEX
   HX - HEAT INDEX
  VSB - VISIBILITY  
$$

  

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

Lancaster, IA

Today
Thunderstorms
78°/ 65° 26°/ 18°
40%
Friday
Thunderstorms
80°/ 68° 27°/ 20°
70%
Saturday
Rain Showers
82°/ 62° 28°/ 17°
60%
Sun Night
Thunderstorms
58°14°
70%
Monday
Rain Showers
65°/ 55° 18°/ 13°
70%
Tue Night-Wed
Cloudy
52°11°
0%

Day: Mostly cloudy. A chance of showers and thunderstorms early this morning. Areas of dense fog early this morning. Some thunderstorms may produce heavy rainfall early this morning. Humid with highs in the upper 70s. East winds around 5 mph, becoming north around 5 mph this afternoon. Chance of rain 40 percent.

Night: Mostly cloudy. Humid with lows in the mid 60s. Northeast winds around 5 mph.

Fairfield, IA

Today
Thunderstorms
80°/ 65° 27°/ 18°
40%
Friday
Thunderstorms
82°/ 68° 28°/ 20°
50%
Saturday
Rain Showers
85°/ 65° 29°/ 18°
60%
Sun Night
Thunderstorms
58°14°
70%
Monday
Rain Showers
65°/ 55° 18°/ 13°
70%
Tue Night-Wed
Cloudy
55°13°
0%

Day: Mostly cloudy. A chance of showers and thunderstorms early this morning. Areas of dense fog early this morning. Some thunderstorms may produce heavy rainfall early this morning. Humid with highs around 80. East winds around 5 mph, becoming north around 5 mph this afternoon. Chance of rain 40 percent.

Night: Mostly cloudy. A slight chance of showers and thunderstorms after midnight. Humid with lows in the mid 60s. Northeast winds around 5 mph. Chance of rain 20 percent.

Washington, IA

Today
Thunderstorms
78°/ 65° 26°/ 18°
50%
Friday
Thunderstorms
80°/ 68° 27°/ 20°
50%
Saturday
Rain Showers
82°/ 65° 28°/ 18°
60%
Sun Night
Thunderstorms
58°14°
70%
Monday
Rain Showers
65°/ 55° 18°/ 13°
70%
Tue Night-Wed
Cloudy
55°13°
0%

Day: Mostly cloudy. A chance of showers and thunderstorms early this morning. Areas of fog early this morning. Some thunderstorms may produce heavy rainfall early this morning. Humid with highs in the upper 70s. East winds around 5 mph, becoming north this afternoon. Chance of rain 50 percent.

Night: Mostly cloudy. Humid with lows in the mid 60s. Northeast winds 5 to 10 mph.

Marengo, IA

Today
Thunderstorms
78°/ 65° 26°/ 18°
50%
Friday
Thunderstorms
78°/ 68° 26°/ 20°
70%
Saturday
Rain Showers
82°/ 62° 28°/ 17°
70%
Sunday
Rain Showers
68°/ 55° 20°/ 13°
60%
Monday
Rain Showers
62°/ 52° 17°/ 11°
60%
Tuesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%

Day: Mostly cloudy. A chance of showers and thunderstorms early this morning. Patchy fog early. Areas of fog this morning. Some thunderstorms may produce heavy rainfall early this morning. Humid with highs in the upper 70s. East winds around 5 mph, becoming north around 5 mph this afternoon. Chance of rain 50 percent.

Night: Mostly cloudy. A slight chance of showers and thunderstorms after midnight. Humid with lows in the mid 60s. Northeast winds 5 to 10 mph. Chance of rain 20 percent.

Mount Pleasant, IA

Today
Thunderstorms
82°/ 65° 28°/ 18°
40%
Friday
Thunderstorms
82°/ 68° 28°/ 20°
50%
Saturday
Rain Showers
85°/ 65° 29°/ 18°
70%
Sun Night
Thunderstorms
58°14°
70%
Monday
Rain Showers
65°/ 55° 18°/ 13°
70%
Tue Night-Wed
Cloudy
55°13°
0%

Day: Mostly cloudy. A chance of showers and thunderstorms early this morning. Areas of fog early this morning. Some thunderstorms may produce heavy rainfall early this morning. Humid with highs in the lower 80s. East winds around 5 mph, becoming north around 5 mph this afternoon. Chance of rain 40 percent.

Night: Mostly cloudy. Humid with lows in the mid 60s. Northeast winds around 5 mph.

Keosauqua, IA

Today
Thunderstorms
82°/ 68° 28°/ 20°
20%
Friday
Thunderstorms
82°/ 70° 28°/ 21°
50%
Saturday
Rain Showers
85°/ 65° 29°/ 18°
60%
Sun Night
Thunderstorms
60°16°
70%
Monday
Rain Showers
68°/ 55° 20°/ 13°
70%
Tue Night-Wed
Cloudy
55°13°
0%

Day: Patchy dense fog early this morning. Mostly cloudy with a slight chance of showers and thunderstorms early, then partly sunny. Some thunderstorms may produce heavy rainfall early. Humid with highs in the lower 80s. East winds around 5 mph, becoming north this afternoon. Chance of rain 20 percent.

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

Iowa City, IA

Today
Thunderstorms
78°/ 65° 26°/ 18°
70%
Friday
Rain Showers
78°/ 68° 26°/ 20°
70%
Saturday
Rain Showers
82°/ 65° 28°/ 18°
60%
Sunday
Rain Showers
65°/ 58° 18°/ 14°
60%
Monday
Rain Showers
65°/ 55° 18°/ 13°
60%
Tue Night-Wed
Cloudy
55°13°
0%

Day: Mostly cloudy. Showers likely with a chance of thunderstorms early, then a chance of showers and thunderstorms this morning. Patchy fog early. Areas of fog this morning. Some thunderstorms may produce heavy rainfall early this morning. Humid with highs in the upper 70s. Northeast winds around 5 mph. Chance of rain 70 percent.

Night: Mostly cloudy. Humid with lows in the mid 60s. Northeast winds 5 to 10 mph.

Wapello, IA

Today
Thunderstorms
80°/ 65° 27°/ 18°
40%
Friday
Rain Showers
82°/ 68° 28°/ 20°
70%
Saturday
Rain Showers
85°/ 65° 29°/ 18°
70%
Sun Night
Thunderstorms
58°14°
60%
Monday
Rain Showers
68°/ 55° 20°/ 13°
60%
Tue Night-Wed
Cloudy
55°13°
0%

Day: Mostly cloudy. A chance of showers and thunderstorms early this morning. Patchy fog early. Areas of fog this morning. Some thunderstorms may produce heavy rainfall early this morning. Humid with highs around 80. East winds around 5 mph. Chance of rain 40 percent.

Night: Mostly cloudy. Humid with lows in the mid 60s. Northeast winds around 5 mph.

Vinton, IA

Today
Thunderstorms
75°/ 62° 24°/ 17°
70%
Friday
Thunderstorms
75°/ 68° 24°/ 20°
80%
Saturday
Thunderstorms
82°/ 62° 28°/ 17°
70%
Sunday
Rain Showers
68°/ 55° 20°/ 13°
60%
Monday
Rain Showers
62°/ 52° 17°/ 11°
60%
Tue-Tue Night
Mostly Cloudy
65°18°
0%
Wednesday
Sunny
70°21°
0%

Day: Cloudy. Showers likely with a chance of thunderstorms early, then a chance of showers and thunderstorms this morning. Patchy fog early. Areas of fog this morning. Some thunderstorms may produce heavy rainfall early this morning. Humid with highs in the mid 70s. East winds around 5 mph, becoming north around 5 mph this afternoon. Chance of rain 70 percent.

Night: Mostly cloudy. A slight chance of showers after midnight. Humid with lows in the lower 60s. Northeast winds 5 to 10 mph. Chance of rain 20 percent.

Muscatine, IA

Today
Thunderstorms
78°/ 65° 26°/ 18°
70%
Friday
Rain Showers
78°/ 68° 26°/ 20°
70%
Saturday
Rain Showers
85°/ 65° 29°/ 18°
60%
Sun Night
Thunderstorms
58°14°
60%
Monday
Rain Showers
65°/ 55° 18°/ 13°
50%
Tue Night-Wed
Cloudy
55°13°
0%

Day: Mostly cloudy. Showers likely with a chance of thunderstorms early, then a chance of showers and thunderstorms this morning. Patchy fog early this morning. Some thunderstorms may produce heavy rainfall early this morning. Locally heavy rainfall possible early. Humid with highs in the upper 70s. East winds around 5 mph, becoming north around 5 mph this afternoon. Chance of rain 70 percent.

Night: Mostly cloudy. Humid with lows in the mid 60s. Northeast winds around 5 mph.

Fort Madison, IA

Today
Thunderstorms
82°/ 68° 28°/ 20°
20%
Friday
Thunderstorms
85°/ 70° 29°/ 21°
40%
Saturday
Mostly Cloudy
88°/ 68° 31°/ 20°
70%
Sunday
Thunderstorms
75°/ 62° 24°/ 17°
70%
Monday
Rain Showers
68°/ 58° 20°/ 14°
70%
Tue Night-Wed
Cloudy
55°13°
0%

Day: Patchy fog early this morning. Mostly cloudy with a slight chance of showers and thunderstorms early, then partly sunny. Some thunderstorms may produce heavy rainfall early. Humid with highs in the lower 80s. East winds around 5 mph, becoming northwest around 5 mph this afternoon. Chance of rain 20 percent.

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

Burlington, IA

Today
Thunderstorms
82°/ 68° 28°/ 20°
40%
Friday
Rain Showers
82°/ 68° 28°/ 20°
50%
Saturday
Rain Showers
85°/ 65° 29°/ 18°
70%
Sun Night
Thunderstorms
60°16°
70%
Monday
Rain Showers
68°/ 55° 20°/ 13°
70%
Tue Night-Wed
Cloudy
55°13°
0%

Day: Mostly cloudy. A chance of showers and thunderstorms early this morning. Patchy fog early. Areas of fog this morning. Some thunderstorms may produce heavy rainfall early this morning. Humid with highs in the lower 80s. East winds around 5 mph, becoming north this afternoon. Chance of rain 40 percent.

Night: Mostly cloudy. Humid with lows in the upper 60s. Northeast winds around 5 mph.

Tipton, IA

Today
Thunderstorms
75°/ 65° 24°/ 18°
90%
Friday
Rain Showers
75°/ 68° 24°/ 20°
70%
Saturday
Rain Showers
82°/ 62° 28°/ 17°
70%
Sunday
Rain Showers
68°/ 58° 20°/ 14°
60%
Monday
Rain Showers
65°/ 55° 18°/ 13°
60%
Tuesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%

Day: Mostly cloudy. Showers with a chance of thunderstorms early, then a chance of showers and thunderstorms this morning. Patchy fog early this morning. Some thunderstorms may produce heavy rainfall early this morning. Locally heavy rainfall possible early. Humid with highs in the mid 70s. East winds around 5 mph, becoming north around 5 mph this afternoon. Chance of rain 90 percent.

Night: Mostly cloudy. Humid with lows in the mid 60s. Northeast winds around 5 mph.

Cedar Rapids, IA

Today
Thunderstorms
75°/ 62° 24°/ 17°
90%
Friday
Thunderstorms
75°/ 68° 24°/ 20°
80%
Saturday
Thunderstorms
82°/ 62° 28°/ 17°
70%
Sunday
Rain Showers
68°/ 55° 20°/ 13°
60%
Monday
Rain Showers
65°/ 52° 18°/ 11°
60%
Tue-Tue Night
Mostly Cloudy
65°18°
0%
Wednesday
Sunny
70°21°
0%

Day: Cloudy. Showers with a chance of thunderstorms early, then a chance of showers and thunderstorms this morning. Patchy fog early. Areas of fog this morning. Some thunderstorms may produce heavy rainfall early this morning. Humid with highs in the mid 70s. East winds around 5 mph, becoming northeast around 5 mph this afternoon. Chance of rain 90 percent.

Night: Mostly cloudy. A slight chance of showers after midnight. Humid with lows in the lower 60s. Northeast winds 5 to 10 mph. Chance of rain 20 percent.

Kahoka, MO

Today
Mostly Cloudy
85°/ 68° 29°/ 20°
0%
Friday
Thunderstorms
88°/ 72° 31°/ 22°
40%
Saturday
Partly Cloudy
88°/ 68° 31°/ 20°
60%
Sunday
Thunderstorms
75°/ 62° 24°/ 17°
70%
Monday
Rain Showers
68°/ 58° 20°/ 14°
70%
Tue Night-Wed
Cloudy
55°13°
0%

Day: Patchy fog early this morning. Mostly cloudy. Humid with highs in the mid 80s. Southeast winds around 5 mph, becoming northeast this morning, then becoming northwest around 5 mph this afternoon.

Night: Partly cloudy in the evening, then becoming mostly cloudy. Humid with lows in the upper 60s. Northeast winds around 5 mph.

Memphis, MO

Today
Mostly Cloudy
82°/ 68° 28°/ 20°
0%
Friday
Thunderstorms
85°/ 70° 29°/ 21°
40%
Saturday
Mostly Cloudy
85°/ 65° 29°/ 18°
60%
Sun Night
Thunderstorms
60°16°
70%
Monday
Rain Showers
68°/ 55° 20°/ 13°
70%
Tue Night-Wed
Cloudy
55°13°
0%

Day: Patchy fog early this morning. Mostly cloudy. Humid with highs in the lower 80s. Southeast winds around 5 mph, becoming northwest.

Night: Partly cloudy in the evening, then becoming mostly cloudy. Humid with lows in the upper 60s. Northeast winds around 5 mph.

Aledo, IL

Today
Thunderstorms
82°/ 65° 28°/ 18°
50%
Friday
Rain Showers
80°/ 68° 27°/ 20°
50%
Saturday
Rain Showers
85°/ 65° 29°/ 18°
70%
Sun Night
Thunderstorms
58°14°
60%
Monday
Rain Showers
68°/ 55° 20°/ 13°
60%
Tue Night-Wed
Cloudy
55°13°
0%

Day: Mostly cloudy. A chance of showers and thunderstorms early this morning. Patchy fog early this morning. Some thunderstorms may produce heavy rainfall early this morning. Humid with highs in the lower 80s. East winds around 5 mph, becoming northwest this afternoon. Chance of rain 50 percent.

Night: Mostly cloudy. Humid with lows in the mid 60s. Northeast winds 5 to 10 mph.

Carthage, IL

Today
Mostly Cloudy
85°/ 68° 29°/ 20°
0%
Friday
Rain Showers
85°/ 72° 29°/ 22°
40%
Saturday
Partly Cloudy
88°/ 68° 31°/ 20°
70%
Sunday
Thunderstorms
78°/ 62° 26°/ 17°
70%
Monday
Rain Showers
70°/ 58° 21°/ 14°
70%
Tuesday
Mostly Cloudy
70°/ 55° 21°/ 13°
0%

Day: Patchy fog early this morning. Mostly cloudy. Humid with highs in the mid 80s. Southeast winds around 5 mph, becoming west this afternoon.

Night: Partly cloudy in the evening, then becoming mostly cloudy. Humid with lows in the upper 60s. Northeast winds around 5 mph.

Oquawka, IL

Today
Thunderstorms
82°/ 68° 28°/ 20°
40%
Friday
Rain Showers
82°/ 70° 28°/ 21°
50%
Saturday
Mostly Cloudy
85°/ 68° 29°/ 20°
70%
Sunday
Thunderstorms
75°/ 60° 24°/ 16°
70%
Monday
Rain Showers
68°/ 58° 20°/ 14°
70%
Tuesday
Mostly Cloudy
68°/ 55° 20°/ 13°
0%

Day: Mostly cloudy. A chance of showers and thunderstorms early this morning. Patchy fog early this morning. Some thunderstorms may produce heavy rainfall early this morning. Humid with highs in the lower 80s. East winds around 5 mph, becoming west this afternoon. Chance of rain 40 percent.

Night: Mostly cloudy. Humid with lows in the upper 60s. Northeast winds around 5 mph.

Anamosa, IA

Today
Thunderstorms
75°/ 62° 24°/ 17°
90%
Friday
Rain Showers
75°/ 65° 24°/ 18°
80%
Saturday
Thunderstorms
82°/ 62° 28°/ 17°
70%
Sunday
Rain Showers
68°/ 55° 20°/ 13°
60%
Monday
Rain Showers
65°/ 52° 18°/ 11°
60%
Tuesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%

Day: Cloudy. Showers with a chance of thunderstorms early, then a chance of showers and thunderstorms this morning. Areas of fog early this morning. Some thunderstorms may produce heavy rainfall early this morning. Humid with highs in the mid 70s. East winds around 5 mph, becoming northeast around 5 mph this afternoon. Chance of rain 90 percent.

Night: Mostly cloudy. Humid with lows in the lower 60s. Northeast winds around 5 mph.

Names listed above may include county names.

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