Putnam County High School, IL Hourly Weather Updates

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UTC Time: 8/15/2026, 03:21
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Putnam County High School, Illinois Hour by Hour Forcast

Aeronautical Observation: Automated synoptic observations via NWS Gateway.

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Putnam County High School, IL Regional Weather

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ASUS43 KLOT 150310
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1000 PM CDT FRI AUG 14 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.


ILZ003-004-008-010-011-017-018-150400-
NORTH CENTRAL ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ROCKFORD       CLOUDY    73  69  87 E6        30.15R TC  23           
FREEPORT*      CLOUDY    73  71  95 E7        30.16R TC  23           
ROCHELLE*      CLOUDY    73  69  87 E8        30.15R TC  23           
DE KALB*       CLOUDY    72  70  95 E9        30.16S TC  22           
PERU*          LGT RAIN  73  73 100 E7        30.12S TC  23           
$$


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

Illinois Weather Map Illinois Wind Speeds Map Illinois Humidity Map Illinois Barometric Pressure Map

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Forecast Discussion (DVN)

Issued: 652 PM CDT Fri Aug 14 2026

Key Messages

Another cluster of showers and storms is likely to impact portions of the area mid-evening through the overnight period, which could initially bring a risk for localized damaging winds. Of more concern will be the potential for additional episodes of flash flooding (some potentially significant) for areas that have been hardest hit over the past few days (receiving 4" to 6" of rain so far).
Active weather pattern to continue through the weekend, with greatest storm coverage at night into the morning. Due to successive rainfall events, additional totals of 2 to 4 inches by Saturday morning are favored with localized higher values likely (70%), continuing the flash flood threat.

Aviation

/00Z TAFS THROUGH 00Z SUNDAY/... Issued at 652 PM CDT Fri Aug 14 2026

Very poor flying conditions are expected later this evening through the morning hours Saturday as a moist air mass remains in place. An area of showers is starting to move into the area from the west as of TAF issuance, which could briefly lead to MVFR conditions. Attention will then quickly turn to increasing storm coverage by 03z to 04z at the nose of a nocturnal low- level jet for areas along and south of I-80. These storms are likely to be heavy rainfall producers, generating IFR to perhaps LIFR visibility reductions. Confidence in thunderstorms occurring is highest for BRL, with a bit more uncertainty at CID and MLI where high-res models suggest they could be grazed by them, so we will need to monitor these areas in particular for any amendments. Meanwhile, ceilings are expected to lower to the north to as low as IFR to LIFR. Conditions are expected to gradually improve by Saturday afternoon.

Watches / Warnings / Advisories

/WARNINGS/ADVISORIES... IA...Flood Watch through Saturday morning for IAZ040>042-051>054- 063>068-076>078-087>089-098-099. IL...Flood Watch through Saturday morning for ILZ007-009-015>018- 024>026-034-035. MO...Flood Watch through Saturday morning for MOZ009-010.